WATER POLLUTION CONTROL RESEARCH SERIES • 18050DKC 12/69
PLANKTON DIATOM ASSEMBLAGES
IN LAKE MICHIGAN
U.S. DEPARTMENT OF THE INTERIOR • FEDERAL. WATER QUALITY ADMINISTRATION
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WATER POLLUTION CONTROL EESEAECH SERIES
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On Cover:
Sunfish Lepomis gibbosus
Bullfrog Rana catesbeiana
Spotted salamander Ambystoma maculatum
Drawings By:
Alston Badger
Bears Bluff Field Station
National Marine Water Quality Laboratory
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PLANKTON DIATOM ASSEMBLAGES IN LAKE MICHIGAN
by
E. F. Stoermer and J. J. Yang
Great Lakes Research. Division
The University of Michigan
for the
FEDERAL WATER QUALITY ADMINISTRATION
DEPARTMENT OF THE INTERIOR
Program #18050DBKC
December ,
For sale by the Superintendent of Documents, U.S. Government Printing Office
Washington, D.C. 20402 - Price $2
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TABLE OF CONTENTS
INTRODUCTION .. 1
PREVIOUS INVESTIGATIONS 2
SAMPLING 3
PREPARATION AND ANALYSIS PROCEDURES 4
SYSTEMATIC RESULTS J . . . 5
CONCLUSIONS 208
SUMMARY 214
ACKNOWLEDGMENTS 215
LITERATURE CITED. ... 216
APPENDIX A 221
iii
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INTRODUCTION
The flora of the Laurention Great Lakes has lain before the scien-
tific public as an unaccepted challenge for nearly 300 years. Until
relatively recent times the very size of these bodies of water has dis-
couraged their investigation, as the average investigator lacked the
necessary physical resources to mount an effective attack upon the pro-
blem. As a result, what knowledge we now have at hand has largely been
gathered either through short-term studies of the nearshore flora, often
conducted by interested amateurs, or as an adjunct to practically oriented
research in fisheries and water quality. With the increasingly apparent
necessity to deal with the ecology of the lakes if they are to be pre-
served in a condition useful to man, this lack of orderly progress, if
compared to such thoroughly investigated areas as the terrestrial flora,
begins to bear bitter fruit.
The dominant organisms in all of the Great Lakes, at least in their
pristine condition, are the diatoms. The investigation reported here is
an attempt to more fully document the plankton diatom flora of one of the
Great Lakes, Lake Michigan. Over the past three years about 1000 collec-
tions, both of the modern flora and of preserved collections dating back
to about 1880, have been examined. Although the primary emphasis has
been the determination of the species present, considerable effort has
been devoted to determining the relative abundance of the various elements
of the flora, their seasonal cycles, and the history of the changes in
the flora during the period of record. Patently none of these objectives
will be fulfilled by any singly investigation. It is hoped, however,
that the results of this research will stimulate others to carry on this
general area of research to fruitful conclusions and that the conclusions
reached will prove useful to researchers in other ancillary,fields.
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PREVIOUS INVESTIGATIONS
Probably the earliest traceable collections from the Great Lakes
area that have been preserved to the present day are those of Ehrenberg
(1854-56). The earliest reports dealing with Lake Michigan phytoplank-
ton are the lists published by Briggs (1872) and Thomas and Chase (1887).
All of these persons were more or less amateur diatomists although they
published extensively in the finest tradition of the gentleman amateur
scientist of that day.
Further records of the Lake Michigan flora are contained in the
voluably reported results of the fisheries investigations of Forbes
(1882a, 1882b, 1882c, 1883), Ward (1896) and Thompson (1896).
In 1904 Chase published a list of Michigan diatoms including many
from Lake Michigan. Some records of the flora of the extreme southern
end of Lake Michigan are included in the reports of the water quality
investigations of Leighton (1907) and Baylis and Gerstein (1929). Al-
though containing no records of the algal flora, the report of a similar
investigation by Crohurst and Veldee (1927) gives an excellent account
of the general conditions in the Chicago area at the time.
In 1927 Eddy published his investigations of the plankton of Lake
Michigan, and further records are contained in his later general work
(1934), Ahlstrom's (1936) report contains the first account of systema-
tic collections of the offshore plankton. On the other hand, Skvortzow's
(1937) never-completed account of the Lake Michigan diatoms is entirely
based on material from the water supply of the city of Chicago. In 1944
Lackey published an account of the phytoplankton of the southern end of
Lake Michigan.
A number of reports (Daily 1938; Damann 1941; Griffith 1955) have
emanated from the botanical laboratories of Northwestern University.
The work of Daily and Damann are of particular interest in that their
collections are carefully preserved and available for study. Damann
later (l945, 1960) published reports based on the plankton collections
of the Chicago filtration plant. Although not effectively published,
numerous records are available from this installation. Of particular
interest to this investigation are the reports of Vaughn (1961, 1962).
Records of the Lake Michigan plankton at two locations have been
gathered by the National Water Quality Network (1960, 1961, 1962) and
are reported in publications by Williams (1962, 1964) and Williams and
Scott (1962). Other recent publications include those of Stoermer and
Kopczynska (1967), Stoermer (1967, 1968), and Holland (1968, 1969).
Patrick and Reimer's treatise on the diatoms of the United States
(1966) also contains numerous records from Lake Michigan, although their
practice of recording distributions from broad geographic areas makes
it difficult to determine the exact distribution of the species in ques-
tion.
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SAMPLING
The majority of samples reported in this study were taken by means
of a 1/2 meter #20 plankton net. Where water depths permitted, the sampling
procedure was a vertical haul from approximately 2 m off the bottom to
the surface. In nearshore areas and channels it was necessary to resort
to oblique tows. While the limitations of this sampling method are well
known and recognized, it is the only method that allows direct compari-
son between modern samples with the previously gathered samples available
from Lake Michigan. It is perhaps important to emphasize that, even in
this limited context, complete uniformity was not achieved. The samples
of Thomas and Chase were, in most instances, taken directly from the
water supply of the city of Chicago by placing several layers of muslin
directly over a water tap and thus straining out sufficient quantities
of algae for the preparation of permanent slides. The absolute effici-
ency of this sampling method remains unknown and is not amenable to
modern testing. The samples of Daily, Damann and Ford were apparently
taken nearshore by means of a horizontal tow of a small diameter, hand
cast net.
All material examined is listed in appendix "A." The modern collec-
tions, presently housed in the author's collection at the Great Lakes
Research Division, University of Michigan, consist of a preserved sample
of uncleaned material, a sample of cleaned material, and duplicate pre-
pared slides. In most instances similar material of the historic collec-
tions is available at the Academy of Natural Sciences, Philadelphia. In
some cases, particularly with the older samples, only prepared slides
exist, the older material having been lost or not preserved by the ori-
ginal investigator.
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PREPARATION AND ANALYSIS PROCEDURES
All material gathered in the present investigation was preserved in
the field, immediately after collection, in buffered formalin. After
being received in the laboratory the samples were split and one sub-
sample was set aside, without further treatment as a reference collec-
tion. The other subsample was cleaned, by standard methods for diatom
taxonomy (Patrick and Reimer 1966). Duplicate prepared slides were made
from each cleaned subsample and the remaining material was preserved in
ethanol and set aside as a reference collection of cleaned material. The
prepared slides are strewn mounts, care being taken that the specimens
are evenly distributed and present in appropriate density to facilitate
subsequent identification and counting.
After preparation, all slides were examined to determine that pro-
cessing had been satisfactory and to determine the species present. All
entities reported are represented by at least one specimen, marked by a
circle engraved on the cover of the appropriate permanent slide, included
in the author's concept of the taxon. In order to facilitate systematic
treatment, photographic illustrations were made of each entity discovered
in the course of the investigation and these illustrations, together with
a short description of the taxon and the slide number and location coor-
dinates of voucher specimens, are maintained in a permanent file. In
all instances optical equipment used for examination of the slides and
for taxonomic determinations consisted of a Leitz Ortholux microscope
fitted with a full oil immersion system giving a N. A. of at least 1.30.
In the case of slides selected for detailed population analysis,
counts were made, using the same optical equipment, either of the entire
slide, in the case of the offshore samples, or of 1/2 of the slide, in
the case of harbor or nearshore samples. The distribution information
given in the systematic results are based on these counts, except in the
case of entities which did not occur on the slides counted, in which case
the number of a slide known to contain the entity in question is given.
Computer generated listing of the absolute frequency, the relative
frequency and the contribution to diversity of each taxon in the slides
counted, which cost considerations prohibit reproducing in this report,
are available. The calculated diversity estimates for each assemblage
investigated are given in Appendix "A."
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SYSTEMATIC RESULTS
In the following section a tabulation of the entities encountered
in the investigation is given. The genera are listed in alphabetical
order and the species of each genus are listed in alphabetical order
following. Short descriptions are given for the species of the major
plankton genera, including the morphological measurements of specimens
in populations from Lake Michigan. Similar description of the range of
variation of other populations awaits thorough investigation of the ben-
thic flora.
Because of the time limitations on the completion of this project,
it was necessary to proceed with population analyses before reasonably
complete systematic treatment of the assemblages could be completed.
For this reason a large number of morphologically distinct entities
which could not be identified with a recognized taxon were set aside
and given a numerical designation. Further research during the course
of the investigation has allowed us to determine the relationships of
the majority of these, but there remains a significant number which we
have not been able to identify. These entities are treated as species
incevtae sedi-si and are listed at the end of each genus. In some in-
stances further research will show these entities to belong to recog-
nized taxa. Some of them undoubtedly belong to undescribed species.
These eventually will be described in the appropriate literature. In
many instances determinations await investigation of the benthic flora
in order that sufficient specimens be obtained to allow determination of
the range of variation of the taxon. Finally a certain number probably
are abnormal specimens which can never be satisfactorily determined.
Following the systematic information, a list of occurrences of the
species in question in the populations counted is given. This informa-
tion is presented in the following format: 1) the collection number,
2) the station designation, 3) the date of collection, 4) the proportion
of the entity in question in the collection. In cases where a particu-
lar entity did not occur in the collections subjected to detailed popu-
lation analysis, the number of a voucher slide known to contain the en-
tity is given.
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Genus Aohnanthes Bory
Bory, Diet. Class. Hist. Nat., 1:79-80.
1822.
The majority of species of the genus Aohnanthes find their primary
habitat in periphyton communities. Most of the specimens observed in plank-
ton collections from Lake Michigan are probably derived from such communi-
ties and their occurrence in the plankton is accidental. Certain species
are, however, secondarily planktonic in that they regularly grow attached
to some of the larger species of euplanktonic algae. A notable example of
this tendency is A. alevei, which is regularly noted in plankton collections.
It is probable that many of the smaller members of the genus adopt this
habit of growth under certain conditions.
Aohnanthes affinis Grun.
Aohnanthes af'finis Grunow in: Cleve and Grunow, K. Svenska Vet.-Akad.
Handl., Ny Foljd, 17(2):20. 1880.
_1 ACAFF1M TDT NO CF STATIONS 101.
OC1945 0.00109 )
12JA1946 C.00035 1
46914 CH 19AP1946 0.00107
46916 CH 4MY1947 0.03698
46913 CH 6AU1947 0.07321
46770 EV 9J11937 O.OC596
46747 EV 1AU1937 O.OC990
46750 EV 24SE1937 O.OC943
46749 EV 12MR193B 0.01214
46766 EV 14DE1938 0.01584
1243 E 6 13JN1964 0.00209
1255 D 5 15JL1S64 0.00257
1260 F 3 6JL1964 0.00764
126B E 2 15AU1964 0.04103
1279 E 1 16SE1964 0.03534
1286 F 2 15SE1964 0.01095
1303 E 6 130C1964 0.00560
1306 F 3 11CC1964 0.01940
1344 C 3 25AP1967 O.OC165
1512 E 3 1SE1967 0.00393
1537 E 3 24SE1967 0.00431
1541 E 2 110C1967 0.00532
1381 GS 5 10HY1967 0.00239
1389 GS13 12HY1967 C. 01031
1392 GS16 12MY1967 0.00616
1555 GS 2 30C1967 0.01766
1560 GS 8 40C1967 0.00945
1567 GS15 5DC1967 C. 00318
1573 GS21 60C1567 0.00560
1524 HI 1 20SE1967 O.C2189
1523 HA 1 19SE1967 0.01845
1545 WL 1 20C1S67 0.00676
1550 MR 1 50C1967 0.02478
L1402 TR 2 6HY1967 0.01083
1404 PO 2 10HY1967 0.02541
46923 CH 22N01946 0.00219
(46919 CH 5JN1947 15.090B2
46922 CH 21AU1947 0.01842
46764 EV 17JL1937 0.00806
46763 EV 23AU1937 0.04058
46748 EV 130C1937 0.08540
46768 EV 16HR1938 0.05880
1226 C 7 16HY1964 0.01522
1244 F 1 HJN1964 0.00219
1258 F 1 6JL1964 0.16518
1443 6 6 16AU1964 0.00198
1270 F 1 10AU1964 0.63717
1260 E 2 16SE1964 0.00681
1287 f 3 15SE1964 0.01001
1304 F 1 110C1964 0.01729
1308 C 7 6NQ1964 0.00608
1452 C. 2 14JU967 0.03619
1535 C 7 20SE1967 0.00322
1538 E 5 23SE1967 0.01657
1542 E 3 110C1967 C. 00509
1384 GS < 10MY1967 0.00370
1390 GS14 12MY1967 0.00587
1394 GS18 13KY1967 C. 00344
1557 GS 4 30C1967 0.02616
1562 GS10 50C1967 0.00247
1569 GS17 50C1967 O.OOZ97
1574 GS22 60C1967 0.14094
1546 LU 1 2CC1967 0.08003
1526 HO 1 20SE1967 0.01707
1549 HO 1 40C1967 0.02741
1426 MS 2 29PY1S67 0.05249
1352 KW 2 21AP1967 0.00859
14C5 ES 2 12PY1967 0.01290
146909 CH HR1947 0.00455 )
(46907 CH JL1947 0.00049 1
(46758 EV 5JN1937 0.01070 )
(46757 EV 25JL1937 0.01444
(46760 EV 22SE1937 0.00492
146767 EV 270C1937 C.OS416
(46762 EV 18MR1938 0.08822
1240 0 6 10JN1964 C. 00153
1245 F 2 1 UN 1964 C. 00692
1259 F 2 6JL1964 C. 01859
1267 0 6 18AU1964 0.00216
1272 C' 1 10SE!964 O.CC410
1285 F 1 15SE1964 1.22299
1302 E 5 130C1964 C.OC405
1305 F 2 110C1964 0.02933
1322 E 6 7N01S64 C. 00733
1505 A 4 28AU1967 0.00515
1536 E 2 24SE1967 C.OJ091
1540 C 5 40C1967 0.00496
1543 E 5 100C1967 C. 02155
1387 GS11 12HY1967 0.03169
1391 C-S15 12NV1967 C.OC479
1554 GS 1 30C1967 C. 0106 7
1559 GS 7 4OC1967 0.00350
1565 GS13 50C1967 0.01521
1571 GS19 60C1967 0.00234
1575 GS28 tOC 156 7 C. 00516
1521 SH 1 18SE1967 O.OC5T7
1530 FR 1 24SE1567 0.03000
1552 SH 1 6OC1967 C. 00660
1350 BH 2 19AP1967 C.00220
1403 CA 2 lOtTYWe? 1.42540
Aohnanthes biasolettiana (Ktltz.) Grun.
Synedra biasolettiana KUtzing, Bacill., p. 63, pi. 3, fig. 22. 1844.
Aohnanthes biasolettiana (Kxitz.) Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):22. 1880.
2 ACBIASOL TOT NO OF STATIONS
(46743
I 1389
EV
GS13
20JN1937
12HY1967
12HY1567
0.00428 )
0.00258 1
(46762
I 1565
I
EV
6S13
18HR1938
50C1967
0.04411 I
0.04056 )
( 1285
I 1574
F 1
GS22
15SE1964
6OC1967
C.01165 I
C.OC863 )
I 1405
1407
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Achnanthes ca1oca> Cleve
Aohnanthes oaloar Cleve, Acta Fauna Fl. Fennica, 8(2):51, pi. 3, fig. 8.
1891.
3 ACCAICAR TOT NO OF STATIONS
1560
15BO
GS B
HR 1
4001967
50C1967_
O.OC472 )
0.01239 >
GS13
5CC1967 0.00507 ) < 1527
TR I
2CSE1967 C.CC629 )
Aohnanthes clevei. Grun.
Aohnanthes elevei Grunow -in\ Cleve and Grunow, K. Svenska Vet.-Akad.
Handl., Ny Foljd, 17(2):21. 1880.
This species is quite common in plankton collections from Lake Michigan.
As previously noted, it is often observed growing attached to some of the
larger euplanktonic algae.
4 ACCLEVEI TOT I>C Cf STATlflMS
I 3540
_CH_
11MY1879
(46770
_EV
9JL1937 0.00596 I (46750
46762 EV 18MR1938 0.02206
1268 E 2 15AU1964 0.00274
1285 F 1 15SE1964 0.04659
1316 D 6 9N01964 0.00378
1340 C 7 28MR1967 0.00145
1435 G 7 13JN1967 0.00316
1542 E 3 110C1967 0.00509
1392 GS16 12MY1967 0.0030B
1554 GS 1 30CIS67 0.00712
1565 GS13 50C1967 0.06592
1569 GS17 50C1967 0.00149
1573 GS21 60C1967 0.00224
1544 WJ 1 20C1967 0.00238
1527 TR 1 2CSE1947 0.11321
1530 FR 1 24SE1967 0.07001
1551 ES 1 50C1967 0.02396
1426 MS 2 29MY1967 0.16798
1399 PW 2 5KY1967 0.00680
1240 0 6 10JN1964 0.00153
127C F 1 10AU1964 0.0027Z
1300 E 3 130C1964 0.00358
1320 E 4 7N01964 0.00207
1343 A 6 19AP1967 0.00069
1512 E 3 1SE1967 0.00393
1388 GS12 12MY1967 0.00603
1394 GS18 13MY1S67 0.00172
1555 GS 2 30C1967 0.00353
1566 GS14 5CC1967 0.00183
1571 GS19 60C1967 0.00059
1574 GS22 60C1967 0.05753
1546 LU 1 20C1967 C.05002
1528 SB 1 20SE1967 0.02888
1545 ML 1 20C1967 0.04730
1550 MR 1 50C1967 1.58592
1417 HO 2 22MY1967 0.00748
1354 GH 2 25AP1967 0.00173
1258 F 1 6JL1964 C.CC236
1279 E 1 16SE1964 C.OC393
1306 f 3 110C1964 C. 00277
1323 f 1 6NQ1964 C.CC139
1346 C 7 21AP1967 C.OC134
1536 E 2 24SE1967 C. 00273
1389 GS13 12MY1967 C.OC258
1395 6S19 13MY1967 C. 00117
1557 GS 4 30C1967 C. 01495
1567 GS15 50C1967 C.OC953
1572 GS20 60C1967 C.CC090
1575 GS28 60C1S67 C. 00129
1526 *0 1 20SE1S67 C. 01138
1529 KH 1 20SE1967 C. 08394
1548 CA 1 30C1967 C.C1272
1553 SG 1 6DC1967 C. 02203
1350 BH 2 19AP1967 0.07929
14C4 HO 2 10HY1967 C. 05081
14MY1S67 0.00557 1
Aohnanthes olevei var. rostrata Hust.
Aohnanthes alevei. var. rostrata Hustedt in: Pascher, Sussw.-Fl. Mittel-
europas, Heft 10, Aufl. 2, p. 204, fig. 295. 1930.
This entity has the same growth habit as the nominate variety. Speci-
mens from Lake Michigan are usually in the upper size range according to
descriptions given by most authors (see Patrick and Reimer 1966).
5 ACCIEVVR TCT KC CF SKTICNS 74
(60973 CH 1876 0.04724
146921 r.H 23N01945 0.00065
146914 CH 19AP1946 0.00107
I4A970 r.H 200E1S46 0.00062
(46906 CH PY1947 0.00398
I469JJ r.H 21AU1947 0.00097
(46747 EV 1AU1937 0.00248
1A61HL F" 22SE1S37 0.00492
(46767 EV 270C1937 O.OC387
ILhTf,? fV 18MR1938 O.OBB22
1246 F 3 11JN1964 O.OC598
IJ70 F 1 1CAUIS64 0.00272
1305 F 2 110C1964 0.00173
15,6 f ? 24SE1967 0.00273
1385 GS 9 10WY1967 O.OC235
1189 CS13 12WY1S67 0.00516
1393 GS17 13PY1967 0.00548
1^54 f;s I 3CC1967 0.00356
1567 GS15 50C1967 0.01270
1570 r.5ia 50C1967 0.00992
1574 GS22 60C1967 0.05753
1S77 TB 1 20SE1967 0.03774
1545 WL 1 20Cl?67 0.05406
I 14?6 KS ' 29MY1967 0.01050
( 1404 l"0 2 10MY1967 0.01270
I 354C CH 11MY1879 0.00466
(46917 CH 12JA1946 0.00083
(46924 CH 10MY1946 0.00071
(46?05 CH JA1947 0.00245
(46919 CH 5JN1947 C. 00303
(46758 EV 5JN1937 0.00713
(46763 EV 23AU1937 C. 02029
(46744 EV 60C1937 0.00975
(46749 EV 12HR1938 0.01214
( 1244 F 1 11JN1964 0.00219
( 1258 f 1 6JL1964 0.00708
( 1285 F 1 15SE1964 0.01165
( 1511 E 2 1SE1967 0.00307
( 1541 E 2 110C1967 0.00532
( 1387 GS11 12KY1967 0.00792
( 1390 GS14 12HY1967 0.01174
( 1394 GS18 13HY1967 0.00516
( 1557 GS 4 30C1967 0.00374
( 1568 GS16 50C1967 0.00144
( 1571 GS19 60C1967 0.00176
( 1544 MU 1 2CC1967 0.00238
( 1529 KH 1 20SE1967 0.01199
( 1550 MR 1 50C1967 0.04956
( 1402 TR 2 6MY1967 0.00541
( 1405 ES 2 12CY1967 0.00645
I
<
(
(
3541 CH 1FE1881 C.OC978
46915 CH 20FE1946 0.01138
46923 CH 22NC1946 C.OC437
46909 CH HR1947 C. 02732
46907 CH JL1947 C. 00099
46757 EV 25JH937 C. 00481
46752 EV 15SE1937 O.C6530
46748 EV 130C1937 C. 06405
46768 EV 16MR1938 0.02940
1245 F 2 11JK1964 0.00346
1268 E 2 15AU1964 C. 00547
1303 E 6 130C1964 C. 00560
1512 E 3 1SE1967 0.00785
1542 E 3 110C1967 C. 01526
1388 GS12 12MY1967 0.01810
1392 GS16 12HY1967 0.00308
1396 GS20 13HY1967 0.00074
1565 CS13 50C1967 C. 20789
1569 GS17 50C1967 C. 00297
1572 CS20 60C1967 C.CC090
1546 LU 1 20C1967 0.06502
1530 FR 1 24SE1967 C.C3000
1553 56 1 60C1S67 0.02938
1354 GH 2 25AP1967 C. 00345
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Aohnanthes oonspiona A. Mayer
Aohnanthes oonspioua A. Mayer, Bayrisch Kryptog. Forsch., 1:198, pi. 6,
fig. 9, 10. 1919.
Aohnanthes oonspioua
fig. 9, 10. 1919
6 ACCONSP1 TOT MO OF STATIONS
(46921
1 1511
( 1574
1 15?7
I 1426
CH
E 2
GS22
TR 1
MS 2
23N01945
1SE1967
6CC1567
20SE1967
29MY1967
0.00065
0.00307
o.nnjflH
0.00629
0.01050
(46768
1 1565
< 1547
( 1530
( 1350
EV
GS13
MS 1
FR 1
BH 2
16HR1938
50C1967
2CC1967
Z4SE1967
19AP1967
0.01470 )
0.00507 )
0.00798 1
0,01000 )
0.02B63 )
1 1279
( 1569
I 1526
1 1550
(
£ 1
GS17
I'D 1
m i
1 65 El 964
5DC1967
20SE1967
50C1967
C.C0393 )
0.00149 1
C.CC569 )
C.23S41 )
Aohnanthes oonspioua var. brevistpiata Bust.
Aohnanthes oonspioua var. brevistriata Hustedt-£n: Pascher, Sussw.-Fl.
Mitteleuropas, Heft 10, Aufl. 10, p. 202, fig. 292. 1930.
Coll: 983
Aohnanthes deflexa Reim.
Aohnanthes deflexa Reimer in: Patrick and Reimer, Acad. Nat, Sci. Phila-
delphia Monogr., 13:256, pi. 16, figs. 16-20. 1966.
7 ACCEFLEX TOT NO OF STATIONS
46758 EV 5JN1937 0.04993
46757 EV 25JL1937 0.02407
46768 EV ItPRlSSB 0.01470
1245 F 2 11JN1964 0.00346
1285 F 1 15SE1964 0.00582
1562 GS10 50C1967 0.00247
1545 ML 1 20C1S67 0.01351
1428 MU 2 29HY1967 0.00301
1401 MO 2 6HY1S67 0.00588
1405 ES 2 12HY1?67 C.C1935
46743 EV 20JN1937 0.00428
46763 EV 23AU1937 0.08117
46762 EV 1BNR193B 0.02206
1258 F 1 6JL1964 0.00472
1387 GSll 12BY1967 0.01188
1527 TR 1 20SE1967 0.01887
1550 MR 1 5QC1967 0.14868
1426 MS 2 29MY1967 0.04199
1403 CA 2 10MY1967 0.02615
14C7 SP 2 14MY1967 0.00597
46764 EV 17JL1937 C.CC806
46767 EV 270C1937 0.00774
1244 F 1 11JMS64 C.CCHO
1260 F 3 6JL1964 O.CC191
1398 «S22 14MY1967 C. 00304
1530 FR 1 24SE1967 C. 01000
1553 SG 1 fCCl?67 C.C0734
1350 BH 2 19AP1967 O.C0881
1404 ft 2 10MY1967 C.C3811
Aohnanthes delicatula (Kutz.) Grun.
Aohnanth-id-iwn delioatulum Kutzing, Bacill., p. 75, pi. 3, fig. 21. 1844.
Aohnanthes delioatula Grunow in: Cleve and Grunow, K. Svenska Vet.-Akad.
Handl., Ny FBljd, 17(2);22. 1880.
8 ACDELICC TCT NO OF STATIONS. 1
I 1550 KR 1 50C_1961__pJ.017i7 i (
Aohnanthes detha Hohn and Hellerm.
Aohnanthes detha Hohn and Hellerman, Trans. Amer. Micr. Soc., 82(3):274,
pi. 2, figs. 7-8. 1963.
ACDETFAO TCT (>C CF STAT1CNS 2
MS 1 5_QC1,96_7_ _0JP2478__
I 14C4 HC 2
_lCJ!lil67 0.01270 ) (
Aohnanthes dispar Cleve
Aohnanthes dispar Cleve, Acta Soc. Fauna Fl. Fennica, 8(2):52, pi. 3
figs. 2-3. 1891.
-------
ACDISPAR TCT NP Of
o.BC6e3 i i
Aohnanthes exigua Grim.
Aehnanthes exigua Grunow ini Cleve and Grunow, K. Svenaka Vet
Handl., Ny Foljd, 17(2):21, 1880.
-Akad.
_U ACFXIEUA TOT tit) CF STATIONS 23
46767 fV 270C1537 O.OC387
1268 E 2 15AU1964 0.002T4
110? Ml* 12HV1C6T 0.00308
1565 GS13 5DC196T 0.01521
1575 C*J>R 6QC1967 C.OC129
1551 ES 1 50C1S67 0.02396
13"il MI 2 2IAP1^67 0. DO 3 10
1404 MO 2 10HY1967 0.06352
46762 £* 18HU93B 0.02206
1341 A 3 19AP1967 C.00108
13S7 GS21 13MY1967 O.OOO65
1571 GS19 60C1967 C.0005<)
15*6 LU 1 20C1S67 O.OO500
1550 «R 1 5BC196T 0.07434
1417 HO 2 22HV1967 O.QO374 1
1407 S« 2 14MYL967 O.OOS97
( 1258 f 1 6,111964 C.CC2S6
1541 E 2 HOC 196 7 0.01064
1555 GS 2 3CC1967 C.OC3S3
1573 CS21 60C1967 C. 00112
1529 KM 1 20SE1967 0.03598
1553 S6 1 «OC1967 C. 02203
1350 BH 2 1SAP1S67 C.OC441
Aehnanthes exigua var. hetevavalva Krasske
Aahnanthes exigua var. heterovalva Krasske, Bot. Arch., 3(4):193, figs.
9a-b. 1923.
12 ACEXIGVH 70T NO Of STATIONS
1544
MU 1
MO 1
2OC1967 0.00230 ) ( 1522 BH 1
4DC1S67 0.013TO t 1 1550 KB I
1BSE196? C.00365 > ( 1S45 III 1
SOC196T 1.35051 I I 135O 8H 2
20C1967 C.OC676 I
19AP1967 C.02863 1
Aehnanthes exigua var. heterovalva fo. semiaperta Guer.
Aahnanthes exigua var. hetevovalva fo. semiaperta Guermeur, Cat. Inst,
Frangais d'Afrique Kolre, 12:32, pi. 2, figs. 3c, 3i, 3j. 1954.
13 trflTUHf S TOT MO CF STATIONS
HT1947
i » 1571 csto
0.00117 I I tS1* t*f3t
Aohnanthes hauokiana Grun.
Aohnanthes hauokiana Gmnow int Cleve and Grunow, K. Svenska Vet.->-Akad.
Handl., Ny Foljd, 17(2):21^ 1880.
14 ACHAUCK1 10T HO CF STATIONS
f 137*
1 1350
E 5
BH 2
15 ACHAUCKO TCT
6NV1967
19AP1967
0.00211 1 1 1544 ftU 1 20C1967 0.00477 1 1 1417 HO 2
0.01101 ) 1 1354 SH 2 25AP1967 0.00345 ) <
22MV1967 C. 00374 1
NO OF STATIONS 1
I 13O5 F 2
110C1964 0.00173 I (
Aehnanthes hauokiana var. postrata Schulz
Aehnanthes hauekiana var. vostrata Schulz, Bot. Arch,, 13:191, fig. 40.
1926.
16 ACHAUCVR TOT NC Of STATIONS 7
I 1377
tS20
GS 1
HO 1
( 1350
BH 2
•5CY1967 O.OC356 ) ( 1544
18SE1967 0.00471 I < 1545
1SAP1S67 0.022C3 I I
2CC1967 0.00238 1 I 1547
20C1967 0.00676 ) ( 1426
20C1967 C.CC796 )
C.C2100 <
-------
Aohnanthes hungarioa (Grun.) Grun.
Achnanthiditm hungariown Grunow, Verh. Zool.-Bot. Ges. Wien, 13:146,
pi. 4, figs. 8a-c. 1863.
Aohnanthes hungarioa (Grun.) Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):20. 1880.
18 ACHUNGAR TOT KO CF STATIONS
I 1342
A 4
GB 2
19AP1967 0.00180 ) ( 1417
13MY1967 Q.00270 1 I
22HY1967 0.00374 I ( 1350 BH 2
T9APT9670.01322 )
Aohnanthes lanoeolata (Bre"b.) Grun.
Aohnanthidium lanoeolatum de Bre'bisson ex Kutzing, Sp. Alg. p. 54. 1849-
Aohnanthes lanoeolata (Br£b. ex KUtz.) Grunow in: Cleve and Grunow, K.
Svenska Vet.-Akad. Handl., Ny Foljd, 17(2):23. 1880.
19 ACLANCEO IDT NG CF STATICHS 41
(46905 CH JA1947 O.OC123
1317 E 1 6N01964 0.00191
1555 GS 2 30C1967 0.00353
157? GS20 6DC1967 0.00090
1544 HU 1 20C1967 0.00238
1537 BH 1 1HSE1967 0.00365
1529 KW 1 20SE1967 0.01199
1549 HO 1 4DC1567 0.01370
1426 MS 2 29MY1967 0.08399
i_ 1418 SH 2 22MY1967 0.01555
I 1400 SB 2 6MY1967 0.01191
1 14(11 CA 2 IOMY1967 0.01308
1 1406 GB 2 13MY1967 0.00539
46164 EV 17JL1937 0.01612
14C8 A 3 23MY1967 0.00447
|_1«52 E 2 14JL1967 0.00213
1559 GS 7 40C1967 0.00350
1574 GS22 60C1967 0.00288
1546 LU 1 20C1967 0.01501
1526 NO 1 20SE1967 0.01138
1530 FR 1 24SE1967 0.01000
1551 ES 1 50C1967 0.00799
1427 LU, 2 29HY1967 0.02421
1350 BH 2 19AP1967 0.17621
1352 KW 2 21AP1967 0.00859
1404 MB 2 10MY1967 0.02541
1423 MA 2 25MY1967 0.00428
^7«7 EM 2SJL1937 C.CC481
1410 A 6 24MY1967 C.CC564
,si.3 f 3 110C1967 C.O«50S
1571 GS19 60C1967 0.00059
1575 C-S28 tOC1567 CiflC258
1521 SH 1 18SE1967 0.01154
,S27 TR 1 20SE1961 C. 03774
1545 ML 1 20C1967 C. 01351
1«0 KR 1 5CC1967 1.44963
1417 HO 2 22MY1967 C. 00748
1402 7R 2 6HY1967 0.01083
1354 6H 2 25AP1967 C. 00690
1405 ES 2 12HY1967 C.C1290
Aohnanthes lanoeolata var. dubia Grun.
Aohnanthes lanceolata var. dubia Grunow in: Cleve and Grunow, K. Sven
Vet.-Akad. Handl., Ny Foljd, 17(2):23. 1880.
21 ACLANCVD TCT NO OF STATIONS 34
1272 C1 1 1CSE1964 0.00410
1341 A 3 19AP1967 0.00325
1449 C 3 16JL1967 0.00382
1540 C 5 40C1967 0.00993
1398 GS22 14MY1967 0.00304
1559 GS 7 40C1967 0.00350
1544 HU 1 20C1";67 O.OC477
1522 BH 1 18SE1967 0.00547
1529 KW 1 20SE1967 0.02398
1550 MR 1 50C1967 2.37889
1417 HO 2 22HY1S67 0.02243
1404 HO 2 10HY1967 0.10163
I 1274 0 1 17SE1964 0.00469
( 1342 A 4 19AP19&7 0.00361
1 1532 A 3 18SE1967 0.00329
( 1541 E 2 110C1967 0.01064
( 1554 GS 1 30C1967 0.01779
I 1571 GS19 60C1967 0.00293
( 1547 MS 1 2CC1967 0.03(94
( 1526 HO 1 20SE1967 0.00569
( 1530 FR 1 J4SEIS67 0.02000
< 1553 SG 1 6GC1967 0.00734
( 1350 BH 2 19AP1967 0.38766
1
1279 E 1 16SE1964 C. 01178
1348 E 5 23AP1967 C. 00137 |
1538 E 5 23SE1967 C.OOSS2
1542 E 3 11CC1967 C. 01526
1558 £S 5 400 196 7 0.00793
1574 GS22 60C1967 C. 00288
1546 LU 1 20C1967 C. 02501
1527 TR 1 20SE1967 0.00629
1545 kL 1 2OC1967 0.02703
1426 KS 2 29MY1967 C. 39895
1354 C-H 2 25AP1967 0.00173
25 ACLANCVR 1CT NO OF STATIONS
1264
1404
C1
HO
10AU1964
1CMY1967
O.OC193 )
0.02541 I
I 1301
130C1964 0.00442 ) I 1306
110C1964 C.00277 )
Aohnanthes lanceolata var. elliptioa Cleve
Aohnanthes lanoeolata var. elliptioa Cleve, Acta Soc. Fauna Fl. Fennica,
8(2):51, pi. 3, figs. 10, 11. 1891.
?•> ACLANCVE TCT KC CF STATIONS
1 1342
A 4
19AP1967 0.00180 I t 1449
C 3
lt-ll-1967 0.00764 1 I 1452
14JL1S67 C.CQ426 )
1533
1554
A 4
GS 1
19SE1967
30C1967
0.00464 }
0.00712
( 1538
I 1571
E 5
GS19
23SE1967
60C1967
0.00552 )
C.00059 ) (
1384
1573
ES 8
6S21
10MV1967
60C1S67
C.C0185 )
C.OC113
1 1404
KO 2
10MY1967 O.C1270 )
10
-------
Aohnanthes lanecolata var. haynaldii (Schaarsch.) Cleve
Achnanthes haynaldii Schaarschmidt, Magyar NBvenytani Lapok, 5(50):20. 1881.
Aohnanthes tanaeolata var. haynaldii (Schaarsch.) Cleve, Diatomiste, 2(17):
99, pi. 7, figs. 14a-b. 1894.
23 ACLANCVH TCI NO OF SUTIONS
t 1565
5CC1S67 0.00507 ) I
Aohnanthes lanoeolata var. onrissa Reim.
Aohnanthes lanoeolata var. omissa Reimer in: Patrick and Reimer, Acad.
Nat. Sci. Philadelphia Monogr., 13:272, pi. 18, figs. 16, 17. 1966.
24 ACLANCVC TOI NO OF STATICNS 20
1305 F 2 110C1964 O.OC173
1567 GS15 50C1967 0.00159
1574 6S22 60C1967 O.OC575
1547 KS 1 20C1567 0.01597
1S50 MR 1 50C1967 0.79296
14?7 LU 2 2SMY1967 0.01211
1354 GH 2 25AP1967 O.OC173
1565 6S13 50C1967 0.44620
1569 GS17 50C1967 0.00149
1575 GS28 60C1967 0.00129
^24 M! 1 20SE1967 0.02189
1553 SG 1 60CI967 0.00734
|J50 BH 2 19AP1967 0.01762
1404 MO 2 10NY1967 0.02541
1566 GS14 50C1967 C. 00367
1573 GS21 60CI967 C.00112
1544 MU 1 20C1967 0.00238
1521 SH 1 16SE1967 0.00577
1428 KU 2 29NY1967 0.00301
1402 TR 2 6MY1967 C.OC541
Aohnanthes Zanceolata var. robusta Hust.
Aohnanthes lanoeolata var. robusta Hustedt, Arch. Hydrobiol., Suppl.
15:202, pi. 13, figs. 47-49. 1938.
20 ACLANCVB TOT NO OF STATICNS
1550 MR 1
50C1S67 C.30575 ) ( 1426 MS 2
29KY1967 0.03150 ) I
Aohnanthes lanceolatoides Sov.
Aohnanthes laneeolatoides Sovereign, Trans. American Micr. Soc., 77(2):
115, pi. 2, figs. 18, 19. 1958.
?fe ACLAMTCQ TOI MO OF STATICHS 1
I 1S*T CS1S 50C1967 O.OC159 I I
Aohnanthes laterostrata Hust.
Aohnanthes laterostvata Hustedt in: Raberihorst, Kryptog.-Fl. Deutschland,
7(2)3:392, fig. 840. 1933.
?8 ACLATERC TCT NC CF STAT1CKS 1
I 1574
CSZZ
6CC1967 O.OC575 I
Achnanthes lauenburgiana Hust.
Aohnanthes lauenburgiana Hustedt, Abb. Naturw. Ver. Bremen, 33(3):451,
figs. 1-6. 1944.
ACLAUE^B TCT NO OF
I 1572
E 2
15AU1964 0.00274 ) I 13C5
60C1967 0.00090 I
20C1967 C.00500 )
( 1574
I 1527
GS22
T» L
110C1964 0.00173 1 ( 1383
60C1967 0.00288 ) I 1544
20SE1967 0.00629 1 I 1530
CS 7
Ml) 1
FR 1
10HY1967 C.C0267 )
2DC1967 C. 00238 I
24SE196T O.C lOOJLi
11
-------
Aohnanthes lerrmermanni Hust.
Aohnanthes lermermanni Hustedt in: Rabenhorst Kryptog.-Fl. Deutschland,
7(2)3:390, fig. 837. 1933. *
TCT NC Of STATIONS
US
O.M14SLJ _i..,U5JL_ BH 2
19AP1967 0.00220
J-J547
20C1S67 Q.OC798 I
Aohnanthes linearis (Wia. Smith) Grun.
Achnanthidiwn lineare Wm. Smith, Ann. Mag. Nat. Hist., Ser. 2, 15:8,
pi. 1, fig. 9. 1855.
Aohnanthes linearis (Win. Smith) Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):23. 1880.
32 ACLlHtAR ICT NC Of STtTIONS 55
._I*69Q9.
146907
I&&77O
146747
14A75?
146762
1304
1555
1565
1571
... 1515^
1521
1528
1551
1553
1352
1S*9._
CH
CH
EV
EV
f V
EV
_F_ 1
F I
E 2
GS 2
GS13
GS19
GS28
SH 1
SB 1
ES 1
SB 1
KM 2
Cl 2
PR 194 7
JL1947
9JL1937
1AU1937
I55E1937
6JL1964
HOC 1964
24SE1967
3CC1967
SOC1967
60C1967
6J3CIS67
18SE1967
2CSE1 (46758 EV
5JN1937 0.01426 t ( 13CS F 2
HOC 1964 C.OOSIB I
Aohnanthes mxrginulata Grun.
Aohnanthes ma^ginulata Grunow in; Cleve and Grunow, K. Svenska Vet.-Akad.
Handl., Ny Foljd, 17(2):21. 1880.
34 AQiAftGlN TCI NO Of STJT1CNS
-J 1565 CS13
SCC1967 0.91014 ) I 1553 S6 I
tOC1967 C.01469 I (
Aohnanthes miopooephala (Kutz.) Grun.
Aohnanthidiwn miorocephalian Kutzing, Bacill., p. 75, pi, 3, figs. 13 19
1844.
Aohnanthes miovooephala (Kutg.) Grunow im Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17.(2):22. 1880.
7CT NC CF SK7IONS
« 1244 F 1 UJM1964 O.OC658_.) I 14C3
50 ACSPECOL TOT MC OF STATIONS 7
10KV1967 0.34flOO I (_
( 1258
...I 1304
F 1
6JL1964
110C1964
O.C3304 I
O.M494 I
( 1260
< 1305
F 3
f 2
6JL1964
UOC1964
0.00362 I
0.00173 I
I 1270
_t_Up_6_
10AU1964
( 1361
GS S
10HV1967 O.OC477 1 I
12
-------
Aohnanthes minutissima Kutz.
Aohnanthes minutissima Kvitzing, Linnaea, 8:578, pi. 16, fig. 54. 1833.
( 46924
< 46909
146913
(46764
146748
(46766
( 1258
1 1323
I .15.55
( 1575
_l L52i
I 1528
1 1545
( 1552
I 1426
( 1352
__L_L4Q4
( 1406
CH
CH
CH
EV
6V
EV
EV
F 1
F 1
6S2B
PM 1
SB 1
Ul 1
SM 1
MS 2
KM 2
GB 2
MR1947
6AU1947
17JL1937
23AU1937
130C1937
I4CE193B
6JL1964
6N01964
60C1967
2CSE1967
2CSE1967
2DC1967
6CC1967
21AP1967
_SUfiO_l41_l-.
0.00455 1
CL.C3138 )
0.82192 )
2_._2_7273_L
0.0427C )
0 C735C )
0.0316? 1
0.00708 1
C.CC279 1
Q.00353 1
0.00129 1
0.01393 )
0.02888 )
0.05406 1
O.OC660 )
0.05249 )
0.01718 I
C. 00 27
-------
Aohnanthes pevagalli var. fossilis Temp, and Perag.
Achnanthes peragalli var. fossilis Tempera and Peragallo, Diat. Monde
Entier, 2nd. ed., p. 113. 1909.
Coll: 982.
Aohnanthes pinnata Hust.
Aohnanthes pinnata Hustedt in: Hedin, Southern Tibet, vol. 6, pt. 3,
p. 123, pi. 9, figs. 15-18. 1922.
11 ACPIMVAT TCT NO OF STATIONS 7
U6752 EV 15SE1937 0.02177 I ( 1439 B 4 5JN1964 C. 00200 I ( 1279 1A7 cl°1239 )
( 1350 BH 2 19AP1967 O.CC22C ) (
Aohnanthes ploenensis Hust.
Aahnanthes ploenensis Hustedt in: Pascher, Sussw.-Fl. Mitteleuropas,
Heft 10, Aufl. 2, p. 199, fig. 280. 1930.
42 ACPIONEG TCT NC CF STATIONS 1
( 1550PR 15CC1S670.161C7 )
Aohnanthes sublaevis Hust.
Aohnanthes sublaevis Hustedt, Bot. Archiv. 38:180, figs. 15-16. 1937.
49 ACSPECCK TCT NO OF STATIONS 3
I 1565 GS13 50C1967 0.00507 I ( 15*9 MO 1 40C1961 0.01370 ) ( 1405 ES 2 12HV1967 C.OC645 )
Species ineertae sedis
Achnanthes sp. #1.
43 ACSPECOA TCT NO OF STATIONS 1
( 1547 ~PS 1 2DC1^67 O.OC798 ) T
Aohnanthes sp. #6.
44 ACSPECOF TOT NC CF STATIONS 2
( 1265 C' 2 1CAU1564 0.00224 I ( 1350 BH 2 19AP1967 0.00441 ) (
Aohnanthes sp. #7.
45 ACSPECCG TOT NO OF STATIONS
( 1259 F 2 6JL1964 O.CC31C I I 1260 f 3 6JL1964 0.00191 I ( 1270 f 1 10AU1S64 O.OC272 )
L 1403 CA ?
Aohnanthes sp. #10.
48 ACSPECCJ TCT NO OF STATIONS 2
, 1285 F 1 15SE1964 0.00582 I ( 1565 GS13 50C1967 0.00507 I I
14
-------
Achnanthes sp. #13.
51 ACSPECCM TOT NO OF STATIONS 2"
(46915 CH
20FE1946 O.OX)565 I (46914 CH
19AP1S46 0.00107 ) (
Aohnanthes sp. #14.
52 ACSPECON TOT HC CF STATIONS 1
( 1380 GS 49TYT967 O.OG168 ) T
Aohnanthes sp. #15.
53 ACSPECOO TOT NC OF STATIONS 2
1394 GS18 13MK1S67 0.00172 ) I 1397 GS21
13MY1967 C.00065 ] (
Aohnanthes sp. #16.
54 ACSPECCP TCT NO OF STATIONS 2
( 1571 GS19 6DC1967 O.OC117 I ( 1550
50C1967 0.08673 I
Aohnanthes sp. #17.
55 ACSPECOC TDT NO OF STATIONS 1
I 1550 MR 1 50C1967 C.16107 ) (
Achnanthes sp. #18.
56 ACSPECGR TCT NO OF STATIONS 1
1 1350 BH 2 19AP1967 0^00220 ~} T
Genus Amph-i-plewca Kutz.
Kutzing, Bacill., p. 103. 1844.
Most freshwater species of the genus Amphi-pteura find their primary
habitat in periphyton communities. The two members of the genus that occur
in our collections usually grow enclosed in gelatinous tubes. In eutrophied
portions of Lake Michigan sizable populations of A. pelluoida are often
taken in plankton collections and these cells seem to be entirely free-
living.
Amphipleiwa artioa Patr. and Freese
Amphipleura artioa Patrick and Freese, Proc. Acad. Nat. Sci. Philadelphia,
112:170, pi. 1, fig. 14. 1960.
57 APARTICA TOT NC OF STATICNS
CH
CH
Z3N01945 C.00065 I (46S15 CH
0.00910 1 (46768 EV
20FE1946 0 38 ) (46923
16HR1930 0. ,j<.JO ) (
CH
22N01946 O.C0437 I
15
-------
Amphipleura pellucida (Kiitz.) Kiitz.
Frustulia pellucida KUtzing, Linnaea, 8:543, pi. 13, fig. 11. 1833.
Amphipleura pellucida (Kutz.) Kiitzing, Bacill., p. 103, pi. 3, fig. 52,
1844.
78 APPELLUC TCI I.C CF SUTICNS 209
(60973
[ 4691 5
(46920
!Ai9_22
(46752
I 1273
( 1226
I 1 J>?9
( 1232
( 1235
[ 1237
[ 1240
1 1243
1 1246
1 1441
[ 1253
( 1256
1 1255
( 1266
{ 1269
( 1274
( 1277
( 1280
( 1285
( 1445
1 12-53
( 1296
( 1299
( 1303
1 1306
( 1316
1 1315
( 1322
1 MP5
( 133B
1 1341
( 1344
( 1147
( 1369
1 1374
< 1410
( 1414
C 1431
1 1434
( 1437
I 1447
< 1450
( ISIIQ
( 1513
1 1378
( 1361
[ 1385
( 1388
1 1301
( 1394
f 1 3<97
( 1555
1 1 562
( 1567
1 1570
1 1573
I 1521
( 1551
[ 1563
( 1427
1 1401
( 1353
I 1403
< 1349
1 142 3
CH
CH
CH
CH
EV
B 3
C 7
D 5
E 5
C 7
C' 2
D 6
E 6
F 3
B 6
C' 2
E 2
f 2
D 3
E 3
D 1
D 4
6 2
F 1
B 6
0 2
D 5
E 2
E 6
f 3
D 6
E 3
E 6
F 3
C 3
A 3
C 3
F J
A 4
E 2
A 6
E 2
A 3
_...LJL_
e 3
A 4
C 5
r, 5
E 5
GS 2
GS 5
GS 9
GS12
C515
CS18
GS21
GS 2
GS10
GS15
GS18
GS21
SH 1
ES 1
SG 1
LU 2
KG 2
FR 2
CA 2
CI 2
_iA 2
1876
20FE1946
20CE1946
21AU1947
15SE1937
1BMY1964
16NY1964
14PY1564
16MY1964
16JN1S64
8JN1964
10JM964
13JN1964
11JN1964
24JL1564
16JL1S64
14JL1964
6JL1564
1BAU1964
15AU1964
17SE1964
18SE1964
L6SE1964
15SE1964
140C1964
15DC1964
14DC1S64
_L2flCLS64
13DC1964
110C1564
5NG1964
7NQ1S64
7N01964
6NG1964
2BNR1967
19AP1967
25AP1967
33AP1567
4KY1967
7MY1967
24MY1567
2BHY1567
12JN15t7
17JN1967
15JN1967
11JL1967
16JL1967
2SF1967
31AU1967
9MY1967
10MY1967
10MY1967
12MY1567
12HY1567
13HY1967
13MY1567
30C1567
50C1967
50C1967
5QC1967
60C1567
18SE1S67
50C1967
60C1567
29MV1967
6MY1567
23AP1567
10MY1967
19AP1967
25PY1967
0.09447
0.01707
0.00031
0.00048
0.02177
O.C125C
0.00381
0. 13322
0.03131
O.OC847
0.05672
0.04295
0.0355C
0.12550
0.00441
C.C1598
0.02565
0.09916
0.01754
Oi00822
0.01408
0.00620
0.006B1
0.04659
0.02283
0.00472
O.OC393
0.00314
0.02799
0.01663
0.00378
0.01309
0.02999
0.00252
0.01851
0.01193
O.OC331
0.01301
O.OC373
O.C0598
O.OC564
O.OA343
O.C1030
0.05CB4
0.00269
0.03275
0.1542-4
0.00505
0.00507
0.00421
0.00477
0.01177
0.00603
0. 02394
0.18578
0.00458
C. 01059
0.01234
0.00635
D. 30742
0.17359
O.OC577
0.15177
0.11751
0.08475
0.00588
0.02110
0,02615
0.00359
O.OC856
(46^21
[46914
146=12
(46764
(46762
1 1224
I 1227
( 1230
I 1233
1 1439
1 1238
( 1241
I 1244
( 1247
( 1250
( 1254
( 1257
( 1260
( 1267
( 1271
( 1275
1 1278
< 1283
( 1286
I 1289
( 1294
( 1297
( 1301
( 1304
( 13C7
( 1317
( 1320
( 1223
( 1336
( 1335
( 1342
( 1345
( 1348
( 1370
L_ 1 1375
( 1411
( 1415
( 1432
( 1435
( 1438
( 1448
I 1452
( 1511
( 1536
( 1379
I 1383
( 1366
( 1389
( 1352
I 1395
( 1398
( 1557
( 1563
( 1568
I 1571
( 1574
( 1523
( 1552
1_ L L426
I 1417
( 1402
( 1354
) I 1405
) 1 1419
I ( 1424
CH
CH
CH
EV
EV
B 4
C' 2
E 2
B 3
e 6
0 3
E 2
F 1
6 3
C 6
C 2
E 3
F 3
D 6
C 7
D 2
0 6
E 5
F 2
C 7
D 3
D 6
E 4
F 1
B 6
E 1
E 4
F 1
C 3
C 5
A 4
C 5
E 5
A 6
E 3
C 3
E 3
A 4
C 7
E 5
A 6
E 2
E 2
E 2
GS 3
GS 7
GS10
GS13
GS16
GS19
GS22
GS 4
GSU
GS16
GS19
GS22
RA 1
SM 1
PS 2
HO 2
TB 2
GH 2
ES 2
BU 2
Kin 2
23N01945
19AP1946
API947
17JL1937
18MR1538
18MY1964
13KY1964
16MY1964
5JS2964
5JN1964
11JM964
13JN1964
11JM964
14JL1S64
10JL1964
15JL1964
14 JL 1964
6JL1564
1BAU1964
22SE1564
17SE1964
18SE1564
16SE1564
15SE1964
140C1964
15DC1964
14CC1964
130C1564
1 ICC 1964
N01964
6NG1964
7N0196*
6N01964
27JA1967
28MR1967
19AP1967
25AP1967
23AP1967
3CY1967
7MY1967
31KY1967
28^1967
13JN1967
13JM567
14JN1967
10JL1567
14JL1967
1SE1967
24SE1967
9MY1967
10HY1967
12MY1967
12HY1967
12HY1967
13HY1967
14MY1967
3CC1567
50C1967
50C1967
tnr.KShl
6CC1967
15SE1967
60C1967
29KY1567
22MY1967
6MY1567
25AP1967
12PY1967
23MY1967
25KY1967
C. 00388
0.00107
C.C1150
0.01612
0.02206
0.01372
0.00548
0.02371
0.02143
0.01399
0.01200
0.01183
0.02193
0.00854
0.0164
C.CC35C )
C. 00183 )
C. 34784 1
C.C2J94 1
C. 36125 1
C.C17G7 )
C. 43365 )
C.OCB84 )
C. 01718 1
C.C1062 )
C. 00511 )
16
-------
Genus Amphipvoi'a. Ehr.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:10.
1841.
The single species of the genus AmphipTOTa that occurs in our collec-
tions finds it primary habitat in the epipelic community. It is, however,
a successful facultative planktont and a few specimens can be found in many
plankton collections from the Great Lakes. Because of its striking mor-
phology it is easily identified and is more widely reported than many more
abundant euplanktonic species.
AmphLprora ornata Bailey
Amphiprora ornata Bailey, Smithson.
15, 23. 1851.
Cont. Knowl., 2:38, pi. 2, figs.
. 11 ARORNATA TCT NO OF STAT1CNS 115
(60973 CH 1676 0.07065
(46910 CH OC1945 0.00109
146917 CH 12JA1946 O.OC638
(46923 CH 22NC1946 0.20326
146909 CH MR1947 0;C3643
1
..._.J
. _
_..
.
46906 CH MY1947 0.01460
4692? CH 21AU1947 O.OC872
46743 EV 2pJN1937 0.02141
46764 EV 17JL1S37 0.12893
46763 6V 23AU1937 C. 02025
46760 EV 22SE1937 0.01970
46748 EV 130CIS37 0.02135
46756 EV 27AP1S38 O.OC336
1225 C 6 15MY1564 O.OC392
1230 E 2 16^Y1964 0.00593
1234 B 3 18JN1964 0.00843
174B B 3 24JL1964 0.00197
1254 D 2 15JL1964 C.OC383
125B F 1 6JL1964 0.00944
12<57 0 6 140C1964 0.00381
1313 D 3 9MD1964 0.00193
1321 E 5 7N01964 0. 00315
1371 C 3 4MY1567 C.OC231
1410 A 6 24MV1967 0.00564
1432 A 4 13JN1S67 0.00255
1447 A 4 11JL1967 0.00234
1382 GS 6 10MY1967 O.OC278
1388 GS12 12MY1967 0.10254
1391 GS15 12MY1567 0.03352
1394 GS18 13MY1967 0.07741
1397 GS21 13HY1967 0.00589
1568 GS16 50C1967 0.00433
1571 GS19 6CC1967 0.00059
1574 GS22 6QC1567 0.00863
1550 KR 1 50C1967 0.01235
1350 BH 2 1SAP1967 0.00661
1403 CA ? 1CMY1967 0.01308
1407 SM 2 14MY1967 0.03583
14P2 GA 2 23KY1S67 0.00511
1 3540 CH 11HY1879 0.02330
(46S21 CH 23N01945 0.02975
(46514 Ch 19AP1946 0.04378
46520 CH 20DE1946 0.01356
46512 Cf AP1947 0.01150
46519 CH 5JN1947 C. 00455
46758 EV 5JN1937 0.02496
(46745 EV 3JL1937 O.C8359
(46757 EV 25JL1937 0.00963
(46765 EV 30AU1937 0.08366
l«750 EV 24SE1937 C. 00471
(46767 EV 270C1937 C.C1934
(46759 EV 19HY1S38 0.00338
1228 C 2 14MY1564 C. 00195
1231 E 3 16MY1964 0.00245
1240 0 6 10JN1964 0.00153
1440 8 6 11JL1964 C. 00369
1256 E 2 14JL1964 0.00366
1260 F 3 6JL1964 0.00382
13C6 F 3 11DC1964 0.00277
1318 E 2 7N01964 C. 00190
1339 C 5 28^1967 0.00312
1376 E 5 6HY1967 0.00281
1412 C 5 31KY1967 C. 00421
1436 E 2 15JN1967 0.00362
1450 C 5 16JL1967 0.00762
1383 OS 7 10NY1967 0.00267
1389 GS13 12HY1967 0.00258
1392 GS16 12CY1967 0.01849
1355 GS19 13HY1967 C. 01996
1398 GS22 14*Y1967 C. 00607
1569 GS17 50C1967 0.02230
1572 GS20 60C1967 C. 00090
1575 GS2B 60C1967 0.00516
1553 SG 1 6CC1967 0.02938
1400 SB 2 6HY1967 0.01191
1404 HC 2 10KY1967 0.02541
1349 CI 2 19AP1967 0.00359
( 3541 CH 1FE1881 C.1C760 1
1469C8 Ch OE1945 C.C2C14 )
(46924 CH 10HY1946 0.06349 )
(.46905 CH JA1947 C.C2696 )
(46916 CH 4HY1947 C.CC505 )
(46907 CH JL1947 C.C2219 )
(46771 EV 11JN1937 C.OC951 1
(46770 EV 9JL1937 C. 02578 )
(46747 EV 1AU1937 C.C2971 1
(46752 EV 15SE1931 C.C2177 )
(46744 EV 60C1937 C.C1463 )
(46768 EV UMR153S C.C147C )
(46761 EV 27MY1S36 C.C1635 )
( 1229 0 5 14HY1964 C.CC211 )
( 1232 E 5 16MY1964 O.OC348 1
1244 F 1 UJN1964 C.CC219 )
1249 C 3 8JL1964 0.00272 >
1257 E 3 14JL1564 C.CC239 )
1285 F 1 15SE1964 0.01165 )
1310 C1 2 10N01964 C.CC227 )
1320 E 4 7N01964 C.CC207 )
1344 C 3 2SAP1967 C.C0165 )
1409 A 4 23MY1967 C.CC298 i
1413 C 7 25NYIS67 C. 00632 )
1446 A 3 11JL1567 C.OC245 )
1379 6S 3 9HY1961 C.OC309 )
1387 6S11 12NY1967 C.C1188 )
1390 CS14 12HY1967 0.01174 )
1393 CS17 13HY1967 C.C3561 )
1396 CS20 13HY1967 C. 00222 )
1567 CS15 50C1967 C. 00953 )
1570 GS18 50C1967 C.CJ967 )
1573 GS21 60C1967 C.CC112 1
1526 FO 1 20SE1967 C.OC569 )
1417 HJ 2 22HY1967 C.OC748 )
1352 KH 2 2UP1967 C. 00859 )
1405 ES 2 12KY1567 C. 01935 )
14C6 GB 2 13WY1567 C.CC270 1
Genus Amphora Ehr.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:205.
1841.
Most members of the genus Amphora find their primary habitat in peri-
phyton communities where they grow attached to filamentous algae or to
aquatic vascular plants. Some species grow attached to the larger forms of
euplanktonic algae and are occasionally found in abundance in plankton col-
lections. Although attached growth is usual in the genus it is not obligate
and many, particularly the larger, species are found in abundance in epipe-
lic communities. A number of unusual and apparently undescribed forms occur
in our collections. This highly diverse flora appears to have its closest
counterpart in the Siberian flora, particularly that associated with ancient
Lake Baikal. It is suspected that this apparent disjunct distribution is
more the result of lack of sufficient collection stations from large boreal
lakes than from a truly disjunct distribution.
17
-------
Amphora calwmetioa (Thomas) Per.
Amphiprora oaltunetiea Thomas, Notarisia, 2:328. 1887.
Amphora calwnetica (Thomas) Peragallo, Cat. Gen. Diat.
Mills, 1933; original reference not available).
1897. (fide
5H AHCALUHE TCT NC OF STATIONS 36
14*031
146905
(46919
(46758
146764
(46765
14675C
(46749
146756
( 1341
( 1526
1 1545
ru
CH
CH
EV
EV
EV
EV
EV
EV
A 3
HO 1
HL 1
J^wmQi.-;
JA1947
5JN1947
5JN1937
17JL1937
30AUL937
24SE1S37
12KR1936
27AP1918
19AP1967
20SFl 1 ____„
Amphora montana Krasske
Amphora montana Krasske, Hedwigia, 72(3): 119, pi. 2, fig. 27. 1932.
f.n APMDKTtN TTT KC CF STAT1CNS 4
J8SE1967 0.00182 1 ( 152
RA 1
19SE1967 0.00923 ) ( 1550
SOC1967 C.C1239 1
( 1350 BH 2
19AP1967 O.C1762 ) (
Amphora normani Rabh.
Amphora normani. Rabenhorst, Fl. Europaea Alg., p. 88. 1864,
61 ACNCRCAN TCT SC CF STATIONS
{ 1350 BH 2
1SAP1S61 O.CC22C ) 1
Amphora ovalis (Kutz.) Kutz.
Frustulia ovalis Kutzingft Linnaea, 8:539, pi. 13, fig. 5. 1833.
Amphora ovalis (Kutz.) Kutzing, Bacill., p. 107, pi. 5, figs. 35, 39.
1844.
62 AfGVALIS TOT NO OF STATIONS 37
(60973
l&r.Q17
(46909
146919
(46752
1740
1284
1146
1392
± 1567
1574
1177
1402
CH
r.H
CH
r.H
EV
D 6
E 6
C. 7
GS16
GS15
GS22
TR 1
TR 2
1S76
12JA1946
PR1947
5JN1947
15SE1937
10JN1964
17SE1964
21AP1967
12MY1S67
50C1967
6001967
20SE1-S67
6HY1967
0.04724 ) ( 3541
0.0002B 1 (46924
0.00455 ) (46916
0,00152 ) (46?22
0.02177 ) (46762
C. 00307 ) ( 1270
0.00318
0.00134
C. 00925
O.OC635
0.02013
O.OC629
0.00541
1 1297
( 1388
( 1393
.LIJ>68
1 1546
( 1545
(
CH
CH
CH
CH
EV
F 1
D 6
6S12
GS17
GSlf
LU 1
HL 1
1FE1881
10HY1946
4HY1947
21AU1947
18MR1938
10AU1964
140C1964
12KY1967
13MY1967
5CC1967
20C1967
2CC1967
C. 01956
0.00141
0.00034
0.00145
0.02206
0.00272
0.00190
0.00603
0.00274
C. 00144
0.00500
C. 06081
146921
(46920
(46906
(46747
(46756
I 1279
( 1305
( 1369
( 1565
( 1573
( 1520
1 1350
CH
CH
CH
EV
EV
E 1
F 2
GS13
CS13
ES21
KJ 1
EH 2
23N01945
200E1946
MYJ947
^AU1137_
27AP1938
16SE1964
UGC1964
12NY1967
5DC1967
60C1967
16SE1967
19AP1967
C.OC065 )
0.00185 )
C.OCC66 )
_C_.C123a )
C.OC168 )
O.C£393 )
C.OC173 1
0.00258 1
C. 00507 )
C. 00943 )
C .CC22C 1
18
-------
Amphora ovalis var. graoilis (Ehr.) V. H.
Amphora graoilis Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:410, pi. 3 (I),
fig. 43. 1843.
Amphora ovalis var. gracilis (Ehr.) Van Heurck, Syn. Diat. Belgique, p. 59.
1885.
Coll: 1193.
Amphora oval-is var. libyaa (Ehr.) Cleve
Amphora libyea Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:205. 1841.
Amphora ovalis var. libyea (Ehr.) Cleve, K. Svenska Vet.-Akad. Handl.,
Ser. 2, 27(3):104. 1895.
63 AMDVALVL TOT NC CF STATIONS 107
( 3540 CH 11MY18-I9 0.00*66
. 146910 CH QC1945 0.00546
(46915 CH 20FE1946 0.01707
1469?! r.H 7?NQ1<346 0.03497
(46909 CH WU947 0. 04098
146919 CH 5JN1947 0.01214
(46758 EV 5JN1937 0.12481
(46764 EV 17JL1S37 0.1369?
(46763 EV 23AU1937 0.56818
(46752 EV 15SF1937 0.34828
(46744 EV 60C1S37 0.02439
(46749 EV 12HR1S38 0.02427
(46751 EV 3CMR1938 0.02233
(46761 EV 27KY1S38 0.02180
( 1258 F 1 6JL1S64 O.OC472
( 1270 F 1 10AU1964 0.00545
_
_
1279 E 1 16S61964 0.02356
1306 F 3 110C1964 0.00277
1341 A 3 19AP1967 0.00108
1541 E 2 110C1967 0.00532
1387 GS11 12HY1S67 C. 03961
1390 GS14 12MY1S67 0.03523
1394 GS18 13KY1967 0.00860
1554 GS 1 30C1967 0.01067
1560 GS 8 40C1967 0.00472
1566 GS14 50C1967 0.00367
1572 GS20 60C1S67 0.00180
1544 MU 1 2GC1967 0.00477
1546 LU 1 ,2001567 0.04502
1527 TR 1 2CSE1S67 0.13208
1530 FR 1 24SE1967 0.05001
1552 SM 1 6CC1967 0.0066C
1351 MI 2 21AP1967 0.00310
1399 PH 2 5MY1967 0. 00680 J
1400 SB 2 6MY1967 0.01191
1349 CI 2 19AP1967 0.00359
( 3541 CH 1FE1881 0.05869
(46921 CH 23N01945 0.03363
(46=14 CH 19AP1946 0.01708
(46920 CH 20DE1946 0.01541
(46916 CH 4KY1947 C. 00407
(46SC7 CH JL1947 0.00296
(46771 EV 11JN1937 0.01426
(46757 EV 25JL1937 0.03852
(46765 EV 30AU1937 C. 00558
(46760 EV 22SE1937 0.00492
(46748 EV 130C1937 0.02135
(46763 EV 16HR193B 0.19109
(46756 EV 27AM936 0.00336
(46766 EV 140E1938 0.07921
1259 F 2 6JL1964 0.00620
1275 D 2 17SE1964 0.01290
1285 F 1 15SE1964 0.01165
1337 C 3 2KR1967 0.00147
1343 A 6 19AP1967 C. 00069
1382 GS 6 10HY1967 0.00278
1388 GS12 12MY1967 0.07843
1391 GS15 12HY1967 0.00479
1397 6S21 13MY1967 0.00131
1557 GS 4 30C1967 0.00747
1564 GS12 50C1967 0.00494
1567 GS15 5DC1967 0.08891
1573 GS21 6QC1967 0.00112
1547 HS 1 2QC1967 0.01597
1520 HO 1 18SE1967 0.00943
1528 SB 1 20SE1967 0.02888
1545 Ul 1 20C1967 0.07433
1553 SG 1 60C1967 0.02203
1417 HO 2 22MY1967 0.01122
1401 HD 2 6KY1967 0.02940
1354 GH 2 25AP1967 0.00173
1406 GB 2 13HY1967 0.00270
( 3507 CH 19FE1881 0.01132
(46917 CH 12JA1946 0.00998
(46924 CH 10MY1946 C. 00423
(469C5 CH JA1947 0.00735
(469C6 CH MY1941 C. 01062
(46922 CH 21AU1947 C. 04943
(46743 EV 20JN1937 0.02141
(46747 EV 1AU1937 C. 07674
(46769 EV 7SE1937 0.02171
146750 EV 24SE1937 C. 03299
(46767 EV 270C1937 C. 03481
(46762 EV 18MR1938 C.2646~7
46759 EV 19MY1538 C.CC338
1240 0 6 10JN1964 C.C0460
1260 F 3 6JL1964 O.CC191
1278 D 6 18SE1964 C. 00384
1286 F 2 15SE1964 C. 01095
1340 C 7 28KR1967 0.00073
1536 E 2 24SE1967 C.CC818
1385 6S 9 10HY1967 0.00235
1389 CS13 UMY1967 C. 01547
1392 CS16 12HY1967 C. 01233
1398 C-S22 14KY1967 C. 01214
1558 CS 5 40C1967 C.OC396
1565 CS13 50C1967 C. 13690
1569 GS17 50C1967 C.CC446
1574 GS22 60C1967 C. 16409
1524 HI 1 2CSE1967 C. 05189
1526 HO 1 20SE1967 0.02276
1529 Kh 1 20SE1967 C. 03598
1549 Kfi 1 40C1967 C.C2741
1428 HU 2 29MY1967 C.OC301
1350 BH 2 19AP1961 C.C1542
1402 TR 2 6MY1567 C. 02166
1404 HC 2 10MY1567 C. 02541
Amphora ovalis var. pedioulus (Kutz.) V. H.
Cymbella 1 pedioulus Klitzing, Bacill., p. 80, pi. 5, fig. 8; pi. 6,
fig. 7. 1844.
Amphora ovalis var. pedioulus (KUtz.) Van Heurck, Syn. Diat. Belgique,
p. 59. 1885.
19
-------
64 APOVALVP TOT NO CF STATICKS 139
(6C973 CH 1676 0.18695 )
3541 Ct- 1FE1861 0.01956
(46921 CH 23N01945 C. 00129 ) (46S17 CH 12JA1946 0.00083
(46914 CH 19AP1946 O.OOim 1 I4AC34 CH JOMY1946 H-00282
146905 CH JA1947 O.CC49C ) (46SC9 CH MR1947 0.02277
(46906 CH MY1947 O.O0333 1 I4*C1O fH <5,|NI°4'' 0.00759
(46922 CH 21AU1947 0.00194 ) (46758 EV 5JN1937 C. 06062
4A764 FV 17JL1937 0.14504 1 46757 EV 25J11937 0.03370
(46763 EV 23AU1937 0.54789 ) (46769 EV 7SE1937 0.02171
L46760 EU 22SE1937 0.0049J I I4^15n FV 34SF1537 C. 02357
...
46748 EV 13CC1937 0.44833 ) (46767 EV 270C1937 0.01547
46759 EV 19MY1938 0.00675 ) ( 1241 E 2 13JN1964 0.00148
1244 f \ 11JN1964 O.CC329 ) 1 P45 F ? 11JMI9A4 0.00346
1260 f 3 6JL1964 0.00191 )
1270 F 1 10AU1964 0.01634 )
1275 D 2 17SE1964 0.00645 )
17fl4 E 6 17SE1964 O.OC635 )
1300 E 3 130C1964 0.00358 1
1305 F 2 11DC1964 0.03105 1
1323 F 1 6N01964 0.00139 )
145? F ? 14JL1967 0.00426 )
1537 E 3 24SE1967 0.00431 )
154P E 3 11DC1967 0.00509 )
1383 GS 7 10MY1967 0.00261 )
1392 GS16 12MV1967 0.00616 )
1395 GS19 13MY1967 O.OC235 )
1398 GS22 14MY1967 0.02429 I
1556 GS 3 30C1S67 0.01043 )
1559 GS 7 40C1967 0.00350 )
1565 GS13 50C1967 5.3240C )
1568 GS16 50C1967 0.00144 )
1573 GS21 6DC1967 0.01904 1
1544 MU 1 20C1967 0.03336 1
1520 HO 1 18SE1967 0.01414 )
1523 RA 1 19SE1967 0.01845 1
1528 SB 1 2CSE1967 0.07219 )
1545 KL 1 20C1967 1.83796 )
1551 tS 1 5CC1S67 0.03195 )
1553 SG 1 60C1967 0.10282 )
1351 MI 2 21AP1967 0.00621 )
1350 BH 2 19AP1967 0.36766 )
1402 TR 2 6MY1967 0.03249 )
1353 FR 2 23AP1967 0.02110 )
1403 CA 2 1CHY1967 0.02615 )
1407 SM 2 14HY1S67 0.22691 )
14?3 Wi" 2 25HY1967 0.00428 )
1265 C" 2 10AU1964 0.00224
1272 C" 1 10SE1964 C. 00410
1279 t 1 16SE1964 0.02749
1285 F 1 15SE1964 0.32031
1303 E a 130C1964 0.00560
13CA F 3 110C1964 0.01109
1346 C 7 214P1967 0.00134
L_1511_ E 2 LSJ1967 0.00307
1538 t 5 23SE1967 C. 02762
1543 E 5 10CC196? 0.00718
1384 GS 8 10MY196' 0.00185
1393 GS17 13MY1967 0.00546
Hflfc G52D 13HY1967 0.00592
1554 GS 1 30C1967 0.00712
1557 GS 4 3DC.1967 0.00747
1560 GS 8 40C1967 0.00945
1566 GS14 5CC1967 C. 00367
15?1 GS19 60C1967 0.00293
1574 GS22 6DC1967 0.67307
1547 MS 1 20C1967 0.03194
|_15J1 SH 1 18SE1967 0.03462
1526 MO 1 20SE1967 0.32429
1529 Kk 1 20SE1967 1.00731
1548 CA 1 30C1S67 0.01272
1552 SK 1 60C1967 0.05282
1428 MU 2 29HY1967 0.00301
1427 LU 2 29WY1967 0.01211
1399 PW 2 5KY1967 0.00680
1400 SB 2 6MY1967 0.00596
1354 GH 2 25AP1967 C. 01381
1404 MC 2 10MY1967 0.26677
1349 CI 2 19AP1967 0.01437
!_
(46910 CH DC 1945 C. 00328
(46915 CH 20FE1946 0.02276
(46923 CH 22N01946 C.01093_
(46916 CH 4HV1947 0.00068
(46907 Ch JL1947 C. 00049
146770 EV 9JL1937 O.OC596
(46747 EV 1AU1937 C.C3713
(46752 EV 15SE1937 C. 34828
14*744 EV 60C1937 C. 00975
(46749 EV 12MP.1936 C. 04855
(4f,7^| EV 30MB1938 0.02233
12~43 E 6 13JN1964 0.00418
1768 F 1 6JL1964 C.C1416
1268 I 2 15AU1964 C.C218B
1274 p 1 17SE1S64 C.CC938
1282 t 4 16SE1964 C.C1108
,?<17 D 6 14CC1964 C.CC190
X304 F 1 110019*4 C. 03457
1317 E 1 6N01964 C.OC191
!450 C 5 16JL1967 0.00190
1512 f 3 1SE1967 C.CC393 1
1541 E 2 110C1967 C. 00532
13e0 GS 4 9MY1967 C. 00168
1386 GS10 12MY1967 C.CC575
1390 GS14 17MV1967 C. 01174
1394 GS18 13MY1967 C.CC516
13S7 £S21 I3MY1967 C.OC196
1555 GS 2 30C1967 0.01412
1558 SS 5 40C19«7 C.C1586
1562 CS10 50C1967 C. 00247
1567 GS15 50C1967 C. 10161
1572 GS20 6DC1967 C. 01262
1575 C-S28 6DC1967 C.OC774
1546 IU 1 20C1967 C. 50518
1522 EH 1 18SE1967 C. 00365
1527 IR 1 20SE1967 1.00629
1530 FR 1 24SE1967 C. 21002
1549 *Q 1 40C1967 0.06852
1550 PR 1 50C1967 1.98241
1426 KS 2 29MY1967 C. 88189
1417 hO 2 22MY1967 C.C1869
1401 to 2 6MY1967 C. 05292
1352 KM 2 21AP1567 C. 00859
_
-
1429 tiL 2 29MY1967 C. 01062 )
1405 ES 2 12MY1967 C. 00645 )
1422 GA 2 23MY1967 C.CC511 )
Amphora rotunda Skv.
Amphora rotunda Skvortzow, Phillipine J. Sci., 62(3):3A2, pi. 12, fig. 18.
1937.
65 AMRDTUNQ TCT NC CF SKTICNS 1
( 1520 HO 1 1S5E1967 0.00471 1 1
Amphora s-iberioa Skv. and Meyer
Amphora siberioa Skvortzow and Meyer, Proc. Sungaree River Biol. Sta.,
1(5):36, pi. 3, fig. 168. 1928.
_.- 66 AMSlBlRf TCT NO CF STATIONS 13 __
(46758
(46752
1 l?5fl
( 1427
( 1354
FV
EV
F 1
LU 2
GH 2
5JN1937
15SE1937
6JL1964
29MY1967
25AP1967
0.01426 ) (46743 EV
0.04354 1
0.00236 I
0.01211 )
0.00173 I
(46744
( 1546
( 14C2
(
EV
LU 1
TR 2
20JN1937
60C1937
2QC1967
6MY1967
0.00856 )
0.00488 )
0.01501 )
0.01083 )
(46747
(46762
( 1545
( 1400
EV
EV
kL 1
SB 2
1AU1937
18PR1938
2CC1967
6MY1967
C. 02206
O.C2703 1
C. 00596
Amphora veneta Kutz.
Amphora veneta Kutzing, Bacill., p. 108, pi. 3, fig. 24. 1844
AT iMUFSETA ICT NC CF STATIONS
146916
( 1406 G8 2
4MY1947 0.00136 I 1 124C 0 6
13MY1967 O.OC270 ) (
10JN1S64 0.00153 ) ( 1350 6H 2
20
-------
Species incertae sedis
Amphora "veneta var. angularis" (not published)
6B AWENEVA TOT NC OF STATIONS
(46770
-L J557_
EV
GS 4
9J11937
30C1967
O.OC596 I ( 1254
0.00374 1 ( 1565
D 2
GS13
1SJL1964
5DC1967
O.C01S2 )
0.00507 >
( 1268
1 1574
E 2
6S22
15AU1964
«OC1967
0.00274 )
C.00288 I
Amphora sp. #1.
AMSPECCA THT NO CF STATICNS
6JL1964 0.00236 1 I 1285
60C1967 0,002BB )
.J5SE1964 0.00582 ) ( 1393
13MY1967 C.00274 ]
Amphora sp. #3.
70 AMSPECOC TCT
( 1258
( 1393
I 1546
( 1550
F 1
GS17
tU 1
MR 1
NO OF STATIONS 10
6JL1964
13MY1S6T
.2CC1967
5CC1967
0.00236 1
0.00274 )
0.00500 )
C. 01239 )
< 1279
( 1554
( 1526
1
t 1
GS 1
MC 1
16SE1964
30C1967
20SE1S67
0.00393 1
0.00356 1
0.00569 )
1 1543
< 1565
( 1545
E 5
C-S13
hi 1
100C1S67
5CC1967
20C1967
C.CC716 )
0.05578 )
C. 07433 )
Amphora sp. #4.
JZJ AKSPECCB IDT KO Df STATIONS
1*6917
( 467-47
(46767
I 138,8
CH
EV
ES12
12JA1946
IAUI'937
.270CW37
12KY1*67
0.090.28 )
O.OC774 I
O'. 0060 3 )
(46514
(46752
( 1265 .
4 1.566
CH
F 1
GS14
19AP1946
15SE1937
15SE1964
50C1967
0.00107 )
0.02177 J
C.C2330 !
0.00183 1
(46919
(46748
I 1411
( 1573
CH
EV
C 3
GS21
5JM947
13DC1937
31MY1967
60C1967
C.CC152 )
O.C4270 )
C.CC410 )
C. 00112 )
Amphora, sp.
72 APSPECCF TCI
t 1346
t 1545
( 1400
C 7
ML 1
SB 2
MO OF STJST.ICMS B
2-1AP1967
2CC1S67
iXYlS67
0.00134 )
0.08109 »
0.01TST )
1 1521
( 1417
( 1421
SH 1
HO 2
CH 2
1«S€1<:61
22HY1967
23CV1967
«, 00577 1 <
0.00374 J I
0.01735 ) 1
1527
1350
1R 1
BH 2
20SE1961
19AP1967
C. 04403 )
C. 00220 )
Amphora sp. #7.
73 AfSPECCG TCT HE OF STATIONS 1
I 1285 f 1
15SE1964 O.C2330 ) «
Amphora sp. #8.
74 AMSPECOH TOT NO Cf STATIONS 3
( 1385G?l312HY19670.00258 I( 15656513
50C1967 C.00507
19AP1967 O.OC220 )
21
-------
Amphora sp. #9.
75 AMSPECOI TCT NC OF
( 1565 GS13 50C1967 O.OC507 ) I
Amphora sp. #10.
76 AMSFECCJ TCT NO CF STATICNS 2
( 1574 GS22 £001567 C.CCS63 ) I 1*0*
Amphora sp. #11.
77 AMSPECOK TCT NO OF STATIONS
1520
18SE1967 0.00471 I
Genus Anomoeoneis Pfitz.
Pfitzer, Bot. Abh. Geb. Morph. Physiol., 1(2):77.
1871.
Members of the genus Anomoeoneis find their primary habitat in peri-
phyton and epipelic communities. The few specimens that we have taken in
plankton collections from Lake Michigan are most likely accidental occurences
being derived from other habitats.
Anomoeoneis serians var. braehysira (Brgb. ex Kutz.) Hust.
Navioula aponina var. brachysira de Br^bisson ex Kiitzing, Sp. Alg., p. 69.
1849.
Anomoeoneis serians var. brachysira (Br£b. ex Kutz.) Hustedt in: Pascher,
Sllssw.-Fl. Mitteleuropas, Heft 10, Aufl. 2, p. 264, fig. 427. 1930.
SSL_m 1*6513
0.03223 1 (*6757
0.06088
0.01*70 J
O.OC346
0.0027*
0.00426
0.00356
0.00676
0.02476
1*6752
(46762
( 1258
( 1270
( 1360
( 1565
1 1549
1 1*03
CH
CH
EV
EV
EV
f 1
F 1
GS 4
GS13
KQ 1
CA 2
JA19*7
6AU1947
25JL1937
15SE1937
18HR1938
6JL196*
10AU196*
9KY1S67
50C1967
40C1967
10HY1967
0.00123
O.C3138
0.02889
0.0*35*
0.02206
0.009**
C. 01906
0.00168
C. 00507
C. 01370
0.06539
1*6916
1*6922
(*6747
(46750
1*6751
1260
1265
139*
1546
1551
1404
CH
CH
EV
EV
EV
f 3
F 1
CS18
_..IU. 1 -
ES 1
HO 2 __
*HY19*7
21AU19*7
1AU1937
2*SE1937
30HR1S38
6JL196*
15SE196*
13HY1967
20C1967
50C1967
10MY1967
C.CC17C ),
C. 000*8 )
C.OC*9S >
C.OC*71 >
C. 01117 )
C.CC191 t
C.C52*1 )
C.CG172 t
C.CC500 »
C.CC799 1
_C-P2.5*l )
22
-------
Species -LnoeTtae sedis
Anomoeoneis vitrea var. 1.
_ ft2.-_AMYUMA TOT NC CF STiTICNS _____ 5
tfl __ 6AU1947 0.01046 I ___ 1 1265 f 1 __ 1SSE1964 C. 02912 I 1 1575 C526 ___ eQC146J _ CiOC129
I 1403 CA 2 ICPY1967 0.01308 1 ( 1404 MO 2 10WY1967 0.01270 ) (
Genus Asterionella Hass.
Hassall, Micr. Exam. Water, p; 10, pi. 2(2), fig. 5. 1850.
Asterionella bleakeleyi Win. Smith
Asterionella 'bleakeleyi rWm. Smith, Syn. British Diat., vol. 2, p. 82.
1856.
Cells asymmetric to the transverse axis, in life attached by the broader
end to 4-16 other cells, forming a stellate colony. Valves of specimens
from Lake Michigan 35-67y long, 4-5y broad at widest extremity. In this
taxon the valves taper slightly from the much expanded, often asymmetric,
"headpole" to the less expanded "footpole." The width of the midpoint of
the valve is always greater than one-half the width of the widest extremity.
The margins of the valve are usually slightly convex near middle and are
suddenly and sharply constricted just before the capitate "footpole."
Striae fine and inconspicuous, without visible substructure, 26-30 in IQu.
Axial area narrow, central area lacking.
This entity is common in some polluted harbors bordering Lake Michigan.
We have not, as yet, found it in appreciable quantities in the plankton of
the open lake. It is difficult to distinguish from A. formosa in the living
condition, although its broader, blunter valves which are somewhat expanded
in the middle allow it to be recognized if populations of the two entities
are compared. Cleaned preparations are required for certain identification.
Bt ASBIEJKL TCT KC Cf STJT1CNS 1
18.S£1967_._U..29£29 I ___(__.
Asteri-onella formosa Hass.
Asterionella formosa Hassall, Micr. Exam. Water, p. 10, pi. 2(2), fig. 21.
1850.
Cells asymmetric to the transverse axis, in life attached by the broader
end to 4-16 other cells, forming a stellate colony. Valves of specimens
from Lake Michigan 42-120y long, 4-5p broad at the widest extremity. In
this taxon the ends of the valve are suddenly and sharply expanded and the
body of the valve is very narrow (1.5-2p) with parallel sides in the large
individuals and a slight taper towards the smaller end in smaller individuals.
The width of the midpoint of the valve is always less then one-half that of
the widest extremity. Striae fine and inconspicuous, without visible sub-
structure, 24-28 in 10y« The axial area is very narrow and filiform, central
area entirely lacking. In specimens from Lake Michigan very small spines
often occur on the margins of the valves.
23
-------
This species is abundant in collections from all areas of Lake Michigan.
Populations from the open are usually composed mostly of individuals with
less robust structure and apparently lighter silicification than nearshore
populations. Although it is tempting to separate these, our observations
indicate that they represent a growth form and cannot be distinguished on
the basis of morphology. In areas of the lake that have been eutrophied,
both the relative abundance and the seasonal dominance of this species are
increased.
ASFORKCS TCI NC OF STATICNS 316
(60973
146914
(46970
146912
146919
(46922
(46764
(46763
146752
( 46_7_44_
(4674S
46751
46759
1723
1226
1 779
1232
1?35
1237
1240
1243
..1246
1440
1250
1253
1256
1259
1262
1263
1266
1269
1271
1274
1?77
1280
1263
1286
1445
1291
1294
1297
1300
1303
1306
1309
1312
1315
1318
1321
1324
1337
134Q_
1343
1346
1368
13JTL
1374
04JJIL
1411
1414
1431
.1434
1437
1447
1450
1453
1505
15D9
1512
1533
1536
1539
1542
1378
1381
13J4
1387
1392
1395
1556
1559
1562
CH
CH
CH
CH
CH
CH
EV
EV
EV
EV
EV
FV
EV
B 3
C 7
0 5
E 5
C 7
C1 2
D 6
E 6
B 6
C- 2
E 2
F 2
B 3
C 7
D 3
E 3
C 7
D 1
0 4
E 2
E 5
F 2
B 6
C1 2
D 3
D 6
E 3
E 6
F 3
C' 1
D 2
D 5
E 2
E 5
F 2
C 3
C 7
A 6
C 7
A 3
C 3
E 2
A 3
C 3
E 2
A 3
E 3
A 4
C 5
E 3
A 4
C 5
E 3
A 4
E 2
C 3
E 3
GS 2
GS 5
GS 8
GS11
GS16
GS19
GS2J
GS 3
GS 7
GS10
1876
19AP1946
20CE1946
AP1947
5JN1947
21AU1S47
17JL1937
23AU1937
15SE1937
60C1937
12CR1938
30MR193B
1.86585 1
7. 5 3 27 g 1
2.49858 1
1,98263 1
9.71599 )
20.36691 )
1.57509 )
3.6C99S )
1.78571 )
0,93600 )
L. 5 021 5 )
12.25403 )
7-fll<599 1
19KY1938 C. 81702 )
18MY1964 C.CC938 )
16HV1564
14MY1964
16MY1964
16JN1964
8JN1964
10JN1964
13JN1964
11JN1964
11JL1964
10JL1964
16JL1964
14JL1964
6JL1964
17AU1964
15AU1964
18AU1964
15AU1964
22SE1964
17SE1964
18SF.1964
16SE1964
16SE1964
15SE1964
140C1964
160C1964
150C1964
140C1964
130C1S64
13DC1S64
11DC1964
10N01964
8IM01964
•9N01964
7N01964
7N01S64
6N01964
2MR1967
26MR1967
19AP1967
21AP1967
4HY1967
4MY1967
7MY1967
23MY1967
31WY1967
28MY1967
12JN1967
17JN1967
15JN1967
11JL1967
16JL1967
15JH967
28AU1967
2SE1967
1SE1967
19SE1967
24SE1967
40C1967
110C1967
9MY1967
10MY1967
10MY1967
12MY1967
12MY1967
13HY1967
14HY1967
3GC1967
40C1967
50C1967
0.53272 )
0.54133 )
0.14067 j
0.19770 )
0.24233 )
C. 5?688 J
0.58465 )
.0.25100 1...
3.35335 )
0.52210 1
0.53405 I
0.83352 )
4.12122 )
8.37863 )
0.56045 )
7.36635 )
4.98821 I
0.91402 )
3.61282 )
2.16879 )
2.38274 1
2.78901 1
3.83100 )
10.27397 1
5.13673 )
__J-8452_LL__
5.59765 )
9.77269 )
9.79514 1
3.10438 1
17.44597 )
17.38319 )
(46910
(46924
(46SC5
<46
-------
1 1S65 GS11 ->nfl9t7 IC.*4Sm
( 1568 GS16 50C1967 15.55533
( 1571 GS19 6tlC1967 2.41765
1 1574 GS22 60C1967 10.47000
1 1547 US 1 20Cl
-------
Bacillaria paxillifer (0. F. Mlill.) Hendy
Vibrio paxillifer 0. F. Muller, Animal. Infus., p. 54. 1786.
Baeillaria paxillifer (0. F. Mull.) Hendy, Fish. Invest. (London), Ser. 4,
Part 5, p. 274, pi. 21, fig. 5. 1964.
Coll: 1366.
Genus Caloneis Cleve
Cleve, K. Svenska Vet.-Akad. Handl., Ny FBljd, 26(2) :46. 18-94.
Members of the genus Caloneis find their primary habitats in periphyton
or epipelic communities. The occasional representatives of the genus taken
in plankton collections from Lake Michigan are undoubtedly derived from such
habitats.
Caloneis alpestris (Grun.) Cleve
Navicula alpestris Grunow, Verh. Zool.-Bot. Ges. Wien, 10:545, pi. 5,
fig. 4. 1860.
Caloneis alpestris (Grun.) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):53. 1894.
CAALPEST TCT NP DF STAT1CNS
12 Jfl 1.946 O.OCC28 I I 1504
( 1552 SM 1 6GC1967 0.00660 I (
CH
2J AJJ1 ?6J 0.00247 I ( 1368
CS12
1ZHV1967 C.CC603 I
Caloneis amphisbaena (Bory) Cleve
Navicula amphisbaena Bory, Encyclop. Method., p. 565. 1824.
Caloneis amphisbaena (Bory) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2);58. 1894.
CAAPPHIS TCT NC CF STATICNS
O.CC471 I ( 1417
22MY1967 0.00374 )
19AP1967 C.CC22C )
Caloneis bacillaris var. thepmalis~ (Grun.) A. Cleve
Navicula bacillaris var. thermalis Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 12, fig. 27. 1880.
Caloneis bacillaris var. thermalis (Grun.) A. Cleve, Bih. K. Svenska Vet.-
Akad. Handl., 21, Afd. 3(2):16. 1895.
91 CABACIVT TCT NC OF STATICNS.
(46919 £H_
(46757 EV
5JN1947
25JL1937
0.00152: )
0.00481 I
(46758
(46747
EV
EV
5JN1937
1AU1937
0.00357 1
0.00248 )
17JL1937 C.03223
GS15
50C1967 O.OC159 ) ( 1574
60C1967 0.00288 )
22SE1S37 C.OC492 I
Caloneis bacillum (Grun.) Cleve
Stauroneis bacillum Grunow, Verh. Zool.-Bot. Ges. Wien, 13:155 pi 4
figs. 16a-b. 1863. ' ' " '
Caloneis bacillum (Grunow) Cleve, Diatomiste, 2(17):99. 1894.
89 CABACILL TCT MO OF STATIONS 17
(46921
I4A747
1 1258
1 13D4
1 1567
( 1550
CH
EV
F 1
F 1
GS15
MR 1
23N01545
14U1937
6JL1964
11QC1964
50C1S67
0.00065 )
O.OC495 )
0.00236 1
0. 00247 1
0.01239 )
(46^20
(46768
I 1284
( 1389
( 1350
CH
EV
E 6
GS13
8H 2
200E1946
16NR1938
17SE1964
12MV1«7
60C1967
19AP1967
0.00031
0.01470
0.00318
C.0025B
0.01438
0.00441
46916
1245
1Z65
1565
1546
CH
f I
GS13
tU 1
4M 1T1947
15SE1964
20C1967
C.OC06B 1
C.C0346 )
C. 01165 1
— C. 03043 >
C. 00500 )
26
-------
Calorie-is baoillum var. lanoettula (Schulz) Hust.
Caloneis baoillum var. lanoettula (Schulz) Hustedt in: Pascher, Sussw.-
Fl. Mitteleuropas. Heft 10, Aufl. 2, p. 236, fig. 361. 1930.
146764
(46768
1 1306
( 1546
1 1530
EV
EV
F 3
LU 1
fR 1
17JL1937
16MR1938
110C1964
20C1967
24SE1S67
0.00806 )
0.02940 1
0.00277 )
0.00500 1
O.C200C 1
(46747
( 1272
I 1387
( 1526
I
EV
C' 1
GS11
MO 1
14U1937
1 OS El 964
12MY1967
20SE1967
0.00248 )
0.00410 )
0.00396 )
0.00569 )
(46763
( 1285
( 1388
( 1529
tv
f 1
CS12
KM 1
23AU1937
15SE1964
12HY1967
20SE1967
C. 08117 ]
0.00582 )
C. 01207 )
0.04797 )
Caloneis olevei (Lagerst.) Cleve
Navioula olevei Lagerstedt, Bih. K. Svenska Vet.-Akad. Handl., 1:34,
pi. 1, fig. 10. 1873.
Caloneis olevei (Lagerst.) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):51. 1894.
92 CAClEVEI TCT KC OF STtTlCHS
( 1564 GS12 50C1S67 O.OC165 _l <
Caloneis lewisii Patr.
Caloneis lewisii Patrick, Farlowia, 2(2):172. 1945.
93 CALEmSl TCT NO OF ST
-------
-26 CaVEKTVT TC1T
1 3540
(46923
146916
(46758
(46770
(46747
(46760
(46767
1 1388
( 1566
CH
CH
CH
EV
PV
EV
EV
EV
GS12
GS14
11MY1879 0.00932 ) I 3541 CH lfE1881 0.01956 (46921 CH 23N01S45 C.OC129
22N01946 0.00437 ) (46920 CH 20DE1946 0.00031 (46905 CH JA1947 C. 00123
4MY1947 0.00102 1 146907 CH JL1947 C. 00049 (46922 CH 21AU1947 C.OC194_
5JN1937 0.03209 ) (46771 EV 11JN1937 0.00238 (46743 EV 20JN1937 ,0.02141
9JL1937 0.0178? ) (46764 EV 17JL1937 0.04835 (46757 EV 25JL1937 0.02407 .
14U1937 0.01485 J (46763 EV 23AU1937 C.060BB (46752 EV 15SE1937 C.C4354
22SE1937 O.OC492 1 (46750 EV 24SE1S37 0.00471 (46748 EV 130C1937 C. 02135
27DC1937 0.00387 ) (46749 EV 12HR1936 0.01214 ( 1270 F 1 10AU1964 0.00272
12Mri<;6,7 0 OC603 1 I 1392 GS16 12MV1967 0.00308 ( 1565 GS13 50C1967 0.01521
50C1967 0.00183 » ( 1574 GS22 6CC1S67 C. 00575 I 1545 UL 1 20C1967 C.OC676 )
Species inoevtae sedis
Calorie-is sp. #2.
97CASPECCB TCI NO CF STATIONS
(46919 CH
5JN1947 0.00152 )
Colonels sp. #3.
98 C4SPECOC TOT NO OF ST4TICNS
(4691C
146770
(46747
( 1388
CH
EV
EV
GS12
OC1945
9JL1937
1/SU1937
12MY1967
0.00109 I
O.OC596 )
0.01733 1
0.01207 1
(46758
146764
146765
(
EV
EV
EV
5JN1937
17JL1937
30AU1937
C.C1070 )
C. 10475 )
C.C055B 1
(46771
(46757
146752
EV
EV
EV
11JM937
25JL1937
15SE1937
C.CC238 )
C.C3370 )
C. 04354 )
Genus Campylodiscus Ehr.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:207.
1841.
The single species of Campylodisous that occurs in our collections
reaches its maximum abundance in epipelic communities in hardwater lakes.
In such localities it is occasionally noted in the plankton and is apparent-
ly a successful facultative planktont.
Campylodiscus noricus var. hibemiaa (Ehr.) Grun.
Campylodiscus hi-bernicus Ehrenberg, Ber. Akad. Wiss. Berlin, 1845:154.
1845.
Campy lodiscus noricus var. hiberni-oa (Ehr.) Grunow, Verh. Zool.-Bot. Ges.
Wien, 12:439. 1862.
99 CPNOR1VH TOT HC CF STATICNS
160973 CH
1876 0.02362 I
Genus Capartogramma Kuff.
Kufferath, Expl. Hydrobiol. Lake Tanganyika (1946-1947)
Res. Sci. 4(3):27. 1956.
Only a single species of Capaptogramma occurs in our collections. Pre-
vious reports of its distribution indicate that it reaches its maximum
abundance in brackish water habitats although it is also found in limited
abundance in strictly fresh water. In Lake Michigan its distribution appears
to be restricted to shallow, eutrophied bays where it probably grows in
epipelic or periphyton communities.
28
-------
Capartogranma cruoi.eu.1a (Grun. ex Cleve) Ross
Sohizostauron oruaioula Grunow ex Cleve, K. Svenska Vet.-Akad. Handl.,
Ny Foljd, 18(5):16, pi. 3, fig. 44. 1881.
Capartogrcama arueieula (Grun. ex Cleve) Ross, Bull. British Mus. (Nat.
His.), 3(2):59, figs. 8-11. 1963.
100 CPSPECOA TET NO Of STATtCNS
I 1395 GS 19
13HY1967 O.OOU7
6S19
6CC1967
5CC1967 C.03717 J_
Genus Cooooneis Ehr.
Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1835:173. 1837.
Members of the genus Cooooneis are particularly adapted to epiphytic
growth on larger algae or on aquatic vascular plants. Plankton collections
from Lake Michigan often contain at least a few representatives of the genus.
Most of thase are probably derived from communities other than the plankton
but it appears that at least some of the smaller species are secondarily
planktonic in that they attach to larger euplanktonic alg§e.
Cooooneis diminuta Pant.
Cooooneis diminuta Pantocsek, Res. Wiss. Erforsch.
Pt. 2, Sec. 1, p. 67, pi. 7, fig. 181. 1902.
Balatonsees, Vol. 2.
CCDIH1NU TOT KC CF STATIONS 63
146766 EV 14DE1938 0. 01584
1 1266 E 2 15AU1964 0.0027*
1 1300 E 3 130C1964 O.OC358
( 1541 E 2 110C1967 C. 02129
1 13B6 GS10 12PY1967 O.OC287
1 1391 GS15 12MY1967 O.OC479
1 H94 CS18 13MV1567 0.00516
( 1398 GS22 14KY1967 0.00304
1 1557 GS 4 30C1967 0.00374
I 1560 GS 8 40C1967 0.00472
1 1566 GS14 5GC1967 0.00183
( 1572 GS20 6CC1967 O.OC18C
( 1575 G528 6DC1967 0.00129
1 1546 LU 2CC1967 0.03001
I 1575 PU 2CSE1967 0.04178
( 1529 KW 2CSE1967 0.03598
( I54S C.A 3CC1967 0.01272
( 1550 MR 50C1967 1. 84612
_C__1427 LU 2 29PY1967 0.07264
1 1401 MO 2 6MY1967 O.OC588
1 1404 MO 2 1 CM Y 1967 0.02541
1244 F 1 UJN1964 0.00110
1270 F 1 IOAUI'364 0.00272
1431 * 3 12JN1967 0.00257
1542 E 3 110C1967 0.01526
1387 GS11 12HY1967 C. 01188
1392 GS16 12fY1967 0.01233
1395 GS19 13MY1967 0.00117
1554 GS 1 30C1967 0.01067
1558 GS 5 40C1967 0.00793
1561 GS 9 40C1S67 0.00587
1567 GS15 50C1967 0.00318
1573 GS21 60C1967 0.00112
1544 MU 1 20C1967 0.00238
1522 BH 18SE1967 0.00182
1526 MG 20SE1967 0.00569
1530 Ffi 24SE1967 C. 06001
1549 KC 4CC1967 0.02741
1553 SG 6CC1967 C. 03672
1417 HO 2 22HY1967 0.00748
1354 GH 2 254P1967 0.00690
1405 ES 2 12PY1967 0.01290
1258 F 1 6JL1964 C.CC236
1279 E 1 16SE1964 C.OC393
1537 E 3 24SE1967 C.OC431
1383 C-S 7 10MY1967 C.OC267
1388 GS12 12NY1967 C.OC603
1393 GS17 13MY1967 C.CC548
1396 CS20 13HY1967 C. 00074
1556 C-S 3 30C1967 C.CJ564
1559 CS 7 4QC1967 C.CC699
1565 GS13 50C1967 C. 24845
1571 GS19 60C1967 0.00234
1574 CS22 60C1967 C. 02013
1547 HS 1 20C1967 0.00798
1523 RA 1 19SE1967 C.OC923
1527 Tfl 1 20SE1967 C. 02516
1545 hL 1 2QC1967 C. 08109
1551 ES 1 50C1967 C. 02396
1426 CS 2 29HY1967 €.16898
1350 BH 2 19AP1967 C. 04185
1429 hi- 2 29MY1967 C. 01062
1407 SH 2 14HY1967 C.C1791
Coooone-is d-Lsoulus (Schum.) Cleve
it
Navioula disoutus Schumann, Schrift. Phys.-Okon. Ges. Konigsburg, 5:21,
pi. 2, fig. 23. 1864.
Cooooneis disculus (Schum.) Cleve in: Cleve and Jentzsch, Schrift. Phys.-
Okon. Ges. Konigsburg, 22:129. 1882.
j r.nniscuL TCT KO Of SKTICHS^ U.._
I 1541
1 1561
|^ 1574
( 1553
CH
E 2
RC 1
GS 9
GS22
SG 1
1676
11DC1967
IflC. 196 7
40C1967
6DC1S67
60C1967
0.02362 )
0.00532 )
C.OC356 1
0.00587 )
0.00288 )
0.00734 I
( 3541
1 1394
I 1557
( 1567
< 1545
I 1426
CH .
csie
GS 4
GS15
HL 1
MS 2
1FE1881
13HY19A7
30C1967
50C1967
2GC1967
29HY1967
0.00978
0.00172
0.60374
0.00159
0.01351
0.03150
t 1279
( 1396
1 1559
( 1573
( 1550
( 1354
E 1
GS20
GS 7
GS21
HR 1
CH 2
16SE1964
13HY1967
40C1967
60C1967
50C 196 7
25AP1967
C.CC393 )
C. 00074 1
C.CC350 >
0.00112 )
C.C2478 )
C. 00173 I
Cooooneis pedioulus Ehr.
Cooeoneis pedioulus Ehrenberg, Infusionsthierchen, p. 194, pi. 21, fig. 11.
1838.
29
-------
103 COP6CICU TOT NO OF STATIONS 100
( 3540
(46914
(46916
(46922
(46764
(46763
(46760
146J48
146768
146766
( 1279
_L 131_6_
1534
1538
1543
1397
1559
_1564_
1567
1570
1573
1547
1520
1523
1527
-_UL3£I
1548
1553
1427
1401
1353
1404
1406
14J3
CH
CH
CH
CM
EV
EV
EV
EV
EV
E 1
D 6
A 6
E 5
E 5
GS21
GS 7
6S12
GS15
GS1B
GS21
MS 1
HO 1
RA 1
TR 1
FR 1
CA 1
SG 1
LU 2
HO 2
FR 2
MO 2
GB 2
WA 2
11MY1879
19AP1946
4MY1947
2JLAU1947
17JL1937
23AU1S37
22SE1937
130C1937
16MR1938
14DF1<53B
16SE1964
19SE1967
23SE1967
100C1967
13HY1967
4QC1967
50C1967
50C1967
50C 1967
6QC1567
20C1S67
1BSE1967
19SE1967
20SE1967
24SE1967
30C1967
6DC1967
29PY1967
6MYI967
23AP1967
.... 1CMY1967
13NY1967
- .25KY1967
0.03261
0.00107
0.00068
0.00194
0.02417
3.77435
0.07878
0.74722
0.1C290
0.03169
0.00393
C. 00 378
0.00310
1.41413
0.00718
0.00131
0.00699
C. 00165
0.06668
0.02975
0.01232
0.01597
0.05658
O.C3690
4.12579
0.38004
0.26714
0.00734
0.02421
0.14699
0.01055
0.01270
0.01617
0.00428
( 35C7
(46523
(46S19
(46758
(46757
(46765
(46750
(46767
(46762
( 1272
1284
1452
1536
1540
1388
1396
1561
1565
1568
1571
1574
1524
1521
1525
1528
1531
1552
1426
1417
1402
1354
1407
1419
CH
CH
CH
EV
EV
EV
EV
EV
EV
C1 1
E 6
E 2
E 2
C 5
GS12
GS22
GS 9
GS13
6S16
GS19
GS22
HI 1
SH 1
Pk 1
SB 1
GH 1
SM 1
MS 2
HO 2
TR Z
GH 2
SH 2
BU 2
19FE1881
22N01946
5JN1947
5JN1937
25JL1937
30AU1937
24SE1937
270C1937
18WU938
10SE1964
17SE1964
14JL1967
24SE1967
4QC1967
12MY1967
14MY1967
4DC1967
5QC1967
50C1967
6CC1967
6QC1967
20SE1967
18SE1967
20SE1967
20SE1961
25SE1967
6CC1967
29MY1967
22PY1967
6PY1967
25AP1967
14MY1967
23NY1967
C.CU32
0.00656
0.00303
0.02140
0.02407
C. 02231
0.07070
0.03095
3.52889
0.00410
C. 00318
0.00213
0.02999
C. 00496
0.00603
0.00304
0.01174
0.01014
0.00433
0.00585
0.68745
0.13135
0.04616
0.38992
0.69304
0.00845
0.03301
C. 01050
0.00374
C. 05956
0.00345
0.00597
0.01831
(46917
146920
(46907
(46770
(46747
(46752
(46744
(46749
(46751
I 1278
( 1300
( 1533
( 1537
( 1542
( 1395
( 1557
( 1563
( 1566
( 1569
( 1572
( 1575
( 1546
( 1522
( 1526
( 1529
« 154i
( 1550
( 1351
( 1350
( 1400
( 1429
( 1349
1 1420
CH
CH
CH
EV
EV
EV
EV
EV
EV
D 6
E 3
A 4
E 3
E 3
GS19
GS 4
GS11
GS14
GS17
GS20
GS28
LU 1
6H 1
N3 1
KW 1
kl_ 1
Ht 1
H 2
BH 2
SB 2
kL 2
Cl 2
IH ^
I2JA1946
200E1946
JL194J
9JL1937
1AU1937
15SE1937
60C1937
12MR193*
30MR1938
18SE1964
130C1964
19SE1967
24SE1967
110C1967
13MY1967
30C1967
50C1967
50CJ967
50C1967
60C1967
60ClSt7
20C1967
1SSE1967
20SE1967
2CSE1967
20C1967
50C1967
21APV967
19W1967
6KY1967
J9MY1967
19AP1967
23HY1967
C. 00083 I
C.OC062 )
C.OC099 t
C.CC596_I_
C. 17328 1
4.C4876 ) ..
C.C3414 )
C.C9710 L.
0.05583 >
C.CC384_)_
0.00358 )
C.OC4>4 i
C.C172S 1
C. 01526 _JI .
C.OC117 1
C.CC747 )
C. 00935 )
C.CC550 )
C.C5351 1
C.00180 )
C. 00387 I
C. 10504 )
C.CC182 )
1. 73084 I
6.52356 )
1.62173 )
C.23S41 )
C.OC310 )
C.C7C48 )
C. 02383 )
C. 01062 )
C. 01078 )
C. 01511 1
Cocconeis plaoentula Ehr.
CoGooneis plaoentula Ehrenberg, Infusionsthierchen, p. 194. 1838.
_ 104. . CQPIACEN TOT NC CF STAT1CN5 27
(46751 EV 30KR1938 0.02233
( 1304 F 1 110C1964 0.00247
1 1537 E 3 24SE1967 0.00863
« 1540 C 5 40C1967 0.01985
. -X-.15SS £&_2... 30C1967 0.01059
( 1567 GS15 5CC1967 0.00635
i 1-5.7.4 CS22 60C1S67 0.01151
( 1531 GH 1 25SE1967 0.00645
I_135Q BH 2 I91P1967 0.01322
1244 F 1 11JN1964 C.C0110
1324 F 2 6ND1964 0.00233
1538 E 5 23SE1967 0.00552
1541 E 2 110C1967 0.00532
1559 GS 7 40C1967 0.003SO
1569 GS17 50C1967 0.00149
1544 HU 1 20C1967 0.00715
1545 HL I 20C1967 0.02027
1404 NC 2 10MY1967 0.01270
1278 D 6 18SE1964 C. 00384
1504 A 3 26AU1967 C. 00247
1539 C 3 40C1967 C.CC503
1542 E 3 110C1967 C. 01526
1562 CS1G 50C1967 C.CC247
1572 6S20 6DC1967 C. 00090
1522 BH 1 18SE1967 C. 00182
1428 »U 2 29MY1967 C. 00904
1407 S» 2 14MV1S67 C. 00597
Cocconei'S plaoentula var. euglypta (Ehr.) Cleve
Coceoneis euglypta Ehrenberg, Mikrogeol., pi. 34(6A), fig. 2. 1854.
CoGConeis plaoentula var. euglypta (Ehr.) Cleve, K. Svenska Vet.-Akad,
Handl., Ny Foljd, 27(3):170. 1896.
rnpi Ar.uF TCT ^^
<;TJTICM-; _ l?7
(60973
(46921
(46907
(46747
(46768
< 1236
( 1244
1259
1267
1279
1285
1299
1304
1341
1374
1448
1542
1380
1386
1390
1394
1557
1560
_i_1563
1566
1569
CH
CH
CH
EV
EV
C1 1
F 1
F 2
D 6
E 1
f 1
E 2
F 1
A 3
E 2
A 6
E 2
E 3
GS 4
GS'10
GS14
GS1B
GS 4
GS 8
GS11
GS14
GS17
1676
23N01945
. . ...JL1947
1AU1937
16MR193B
8JN1964
11JN1964
6JL1964
18AU1964
16SE1964
15SE1964
120C1S64
110C1964
19AP1967
7MY1967
10JL1967
110C1967
9MY1967
12MY1967
12MY1967
13HY1967
30C1967
40C1967
50C1967
50C1967
50C1967
0.02362
0.00065
C. 00099
0.00246
O.C1470
0.00219
0.01239
0.00216
0.11648
0.00314
0.00247
O.C141C
0.00299
O.OC354
0.07628
0.00168
0.00575
0.01174
0.00172
0.07474
0.06140
0.01871
0.01101
0.00297
( 3541
(46917
(46922
(46752
(46766
( 1240
( 1245
( 1260
< 1268
( 1286
( 1302
( 1305
( 1370
( 1416
( 1511
1 1543
1 1383
( 1387
I 1392
I 1395
( 1558
( 1561
( 1564
I 1567
( 1570
CH
CH
CH
EV
EV
0 6
F 2
F 3
E 2
E 2
F 2
E 5
F 2
A 6
E 5
E 2
E 5
GS 7
GS11
GS16
GS19
GS 5
GS 9
GS12
GS15
GSlfl
1FE1881
12JA1946
21AU1947
15SE1937
140E1938
10JN1964
MJN1964
6JL1964
15AU1964
16SE1964
15SE1964
13CC1964
110C1964
3KY1967
28MY1967
1SE1967
10CC1967
10MY1967
12WY1967
12MY1967
13HY1967
40C1967
40C1967
50C1967
50C1967
50C1967
0.01956
0.00028
0.00048
0.04354
0.01584
0.00153
0.00346
0.00191
C.OL094
0.00681
O.Q1095
0.00245
0.00405
0.00173
0.00230
C.01C93
0.00614
0.01437
0.00535
0.02772
0.02157
0.00470
0.05549
0.01174
0.00329
0.04287
0.03967
146910
(-46923
(46743
(46760
1229
1243
1258
1264
1270
1284
1287
1297
1303
1306
1373
1446
1533
1540
1377
1385
1388
1393
1398
1556
1559
1562
I 1565
( 1568
( 1571
CH
CH
EV
EV
0 5
E 6
F 1
C' 1
F 1
E 6
F 3
D 6
E 6
F 3
C 7
A 3
A 4
C 5
GS 1
GS 9
GS12
GS17
GS22
GS 3
GS 7
ESIO
GS13
C-S16
GS19
22N01946
20 JN1937
22SE1937
14KY1564
13JN1964
10AU1964
10AU1964
17SE1964
1SSE1964
14GC1964
1 IOC 1564
UJL1967
19SE1967
4CC1967
10MY1967
13WY1967
30C1961
5CC1967
SOC1961
40C1967
0.00656 )
0.00492 1
C.CC209 )
C. 00579 )
0.01271 )
C.CC190 )
C.C0277 )
C.CC245 )
C.OC496 )
C. 00235 )
C.OCJ74 )
C.1C429 )
O.C0740 )
C.OC577 )
C. 08195 '
30
-------
!Sf2 GS20 6CC1967 C. 00361
1575 GS28 60C1967 0.01677
1524 MI t 20SE1967 0.76620
[ 1521 SH 1 18SE1967 0.02885
1527 TR 1 20SE1967 0.11321
'511 GH 1 25SF1967 0.02536
1549 MO 1 40C1967 0.45224
LJiSO. MR 1 5GC19<,7 15, n-^"; _,
1426 US 2 29MY1967 0.02100
1418 SH 2 22MYIS67 O.Q»55?
1402 TR 2 6MY1967 0.02707
1354 GH 2 25AP1967 0.00345
1405 ES 2 12CY1S67 0.03225
1422 GA 2 ?«V]0»,-7 0.00511
1 1573 GS2
( 1544 MU
( 1546 LU
t 1522 BH
( 1529 Kh
( 1545 HL
1 1551 ES
( 1553 SG
( 1427 LU
( 1,3-50 8W
I 1400 SB
1 14C3 CA
( 1407 SM
I
L &UC196/ 0.00896
20C1967 0.01430
20C1961 C. 09003
18SE1967 0.03100
20SE1967 0.04797
20C1967 0. 29732
50C1967 0.27957
60C1567 0.08079
! 29MY1967 0.02421
I 19AP196.7 1.33918
> 6MY1967 0.0178(7
> 10MY1967 0.01308
! 14MY1967 0.04777
15 /4 6522
1547 »S
1520 HO
1526 fO
1530 FH
1548 CA
1552 SH
1428 >U ;
1417 HO i
1401 NO "t
1352 KM 2
1404 I"Q 2
14C6 CB 2
60C1967 C.36535~
20C1967 C. 06387
18SE1967 C.CC943
20SE1967 C.C4551
24SE1S67 C. 11001
30C1967 C.C1272
60C1S67 C. 03962
2SMVIS67 C. 02109
22MY1961 C. 02243
6MY1967 C.C4116
21AP1967 0.01718
10MY1967 C.IC163
13MY1967 0.01348
r
Cooooneis p~iaaentula var. lineata. (Ehr.) V. H.
Cooooneis lineata Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1847, pi.
5(1), fig. 10. 1849.
Cooooneis plaoentula var. lineata (Ehr.) Van Heurck, Syn. Diat. Bp-lgique,
p. 133. 1885.
106 rCPIACVL TCT NO OF STATICNS 49
[ 1196 GS20 13MY1967 0.00074
( 1555 GS 2 30C1967 0.09B87
I 1558 GS 5 4DC1967 0.01189
< 1563 GSH 50C1967 0.00468
1 15A7 GS15 50C1967 0.01746
< 1571 GS19 60C1967 0.00995
1 1S44 Kll 1 20C1967 0.01668
( 1546 LU 1 20C1S67 0.05502
1 1572 BH 1 16SE1967 0.01276
1 1530 FR 1 245.E1967 0.02000
1 154S Ci 1 3HC1967 0.08905
I 1552 SM 1 60C1967 0.01321
( 14Z8 MU 2 29MY1967 0.01808
( 1427 LU 2 29NY1967 0.07264
( 1354 GH 2 25AP1967 0.03452
I 1405 ES 2 12MY1967 0.0258Q
1 1406 CB 2 13MY1S67 0.02157
13S7 GS21 13^Y1967 0.00065
1556 GS 3 30C1967 0.05736
1559 GS 7 4CC1967 C. 02098
1565 GS13 5QC1967 C. 02028
1569 6S17 50C1967 0.00446
1573 GS21 6CC1967 0.00224
1547 MS 1 20C1967 0.07984
1520 HO 1 18SE1967 0.02357
1527 TR 1 20SE1967 0.05660
1531 GH 1 25SE1967 0.00845
1549 .MO 1 40C1967 C. 12334
1550 MR 1 50CW67 3.5683*
1426 MS 2 29MY1567 C. 43045
1417 HO 2 22MY1967 C. 01122
1429 WL 2 29MY1967 0.05308
1407 SH 2 14MY1967 0.04777
1554 GS
1557 CS
1561 GS
1566 GS1
1570 GS1
1575 CS2
1524 M
1521 SH
1529 KW
1545 hL
1551 ES
1553 SG
1351 Cl i
1350 BH ;
1404 PC !
1349 CI !
1 30C1967 0.00712
i 3DC1967 C.OC374
9 40C1967 C.OC587
4 50C1967 0.00183
9 50C1947 C. 42642
B 60C1967 0.01032
20SE1967 C. 54729
18SE1967 C. 01154
20SE1967 C. 04797
20C1967 0.29732
50C1967 C. 03994
teCl^t? C.C2203
21AP1967 C.OC621
19AP1S67 C. 25330
10MY1967 C. 12703
19AP1967 C. 00718
Coeoone-Ls thumensis A. Mayer
Cooooneis thumensis A. Mayer, B'ayerisch Kryptog. Forsch.
fig. 24. 1919.
1:199, pi. 6,
107 CCTHUHEN TGT tip Cf STAT TOTIS 21
(60973
1256
1279
1294
1347
1543
1394
CH
E 2
e i
0 3
E 2
E 5
GSia
1876
14JU964
16SE1964
15CC1964
23AP1967
100C1967
13MY1967
0.02362 )
0.00183 )
0.00393 1
0.00330 )
0.00163 (
0.00718 )
0.00172 1
46916
1259
1285
1311
1370
1382
1555
CH
F 2
F 1
D 1
A 6
GS 6
GS 2
4MY1S47
6JL1964
15SE1964
8N01964
3KY1967
10MY1967
30C1967
C. 00034 )
0.00310 (
0.01165 1
0.00258 I
0.00230 )
0.00278 )
0.01059 I
1255
1268
1291
1344
1375
1392
1557
0 5
E 2
C1 2
C 3
E 3
GS16
GS 4
15JL1964
15AU1964
160C1964
25AP1961
7MY1967
12KY1961
30C1967
C. 00257
C. 00274
C.OC245
C.CC165
C.OC241
C.CC308
C.OC374
Cooooneis sp. #2.
Species inoevtae sedis
IDS CCSPPrrB TCT NO OF STATIONS 17
(46909
( 1285
( 1554
( 1562
1 1527
( 1550
CH
F 1
GS 1
GS10
TR 1
MR 1
MR1947
15SE1964
30C1967
50C1967
2CSE1967
50C1967
0.00455
0.01165
0.00356
0.00247
0.01256
0.02478
( 1258
( 1541
( 1555
( 1573
( 1530
( 1350
F 1
E 2
GS 2
GS21
FR 1
BH 2
6JL1964
110C1967
3CC1967
6DC1967
24SE1967
19AP1967
0.00236 I
0.00532 )
0.00353 )
0.00112 )
0.01000 I
0.00441 )
1279
1395
1556
1574
1545
E 1
GS19
GS 3
GS22
hL 1
1CSE1S64
13MY1967
30C1967
60C1567
20C1967
C.CC393 )
C. 00117 )
C. 00521 )
C. 01151 )
C. 00676 I
Cooooneis sp. #3.
109 CCSPECCC TCT NO OF STATIONS
( 3540
1 1303
CH
F- 6
11MY1879
13QC196A
O.OC466 )
0.00560 1
1268
1304
E
f 1
15AU1964
110C1964
0.00274 I
0.00247 )
( 1270
I 1313
10AU1964
9NC1964
C.C1C89 )
C.CC193 I
( 1345
C 5
25AP1967 C.OC195 ) I 1541
E 2
11K1967 C.01064 ) ( 1543
E 5
100C1967 C.OC71« 1
31
-------
Coceoneis sp. #4.
110 COSPECCD TCT NO OF ST/ITIONS 11
146766
1 139?
1 1558
.1 152Z_
EV
GS16
GS 5
TR 1
16MR193B
12MY1S67
40C1967
Z_Q£fISi7
0.01470 )
0.00308 I
0.00396 ]
0.00629 )
( 1305
I 1396
( 1565
( 1350
F Z
GS20
GS13
BH 2
UOC1964
13MY1967
50C1967
194P1967
0.00173 1
0.00074 )
0.02535 )
0.00661 )
< 1452
( 1398
( 1526
I
E i
GS22
HO 1
14JL1967
14MY1967
20SE1967
C.OC213 1
C. 00304 )
0. 00569 )
Cooooneis sp. #5.
LU COSPFCOE TCT NO OF STATIONS
_16SE196A 0.00393 I 1 1530 FR 1
24SE1S67 C.01000 1 < 1545
20C1967 0.00676 )
Cocoonei-s sp. #6.
-EOSPECPF TOT NC Cf
-l_144S_
-X_J_
_1 6JL1967 0.00382 I I 1J57
GS
3DC1967 0.00374 ) I
32
-------
Genus Cosoinodisous Ehrenberg
Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1838:128. 1840.
Cosoinodisous subsalsa Juhl.-Dannf.
Cosoinodisous subsalsa Juhlin-Dannfelt, Bih. K. Svenska Vet.-Akad. Handl.,
6(21):47, pi. 3, fig. 33. 1882.
Cells circular in valve view and rectangular in girdle view. Vegeta-
tive cells occur singly or in short colonies of up to 10 cells. Valves of
specimens from Lake Michigan 16-42y in diameter. The valve surface may be
either simply concave or concave near the margins and convex in the middle.
Ornamentation of the valve surface is composed of conspicuous areolae which
are circular in surface focus and more or less hexagonal in deep focus.
Areolae in the central portion of the valve coarse, about 10 in 10u, becom-
ing much finer, about 20 in 10y, near the margins. Near the periphery of
the valve there are several (usually 4-6) slime pores each subtended by a
fungiform projection into the interior of the frustule. In living cells
long, gelatinous strands extend from these pores. The ornamentation of the
valve surface tends to be arranged in loose fascicles that focus on the
pores giving a stellate appearance.
The systematic position of this entity is somewhat uncertain. Many
authorities consider it to be a variety or form of either C. vothii or C.
subtilis. Its recorded distribution indicates a preference for brackish
water or waters of high total dissolved solids in inland regions. At the
present time it is established in polluted harbors and nearshore waters of
Lake Michigan and has become one of the dominant species in the summer plank-
ton of Lake Erie.
113 CSRPTHUS TCT I»C CF STATIONS 13
1230
1265
1298
1416
1568
£ 2
C' 2
E 1
E 5
GS16
16MY1964
10AU1964
120C1964
28MY1967
50C1967
0.00296 1
0.00224 )
0.00269 I
0.00219 )
0.00144 I
1259
1272
1302
1536
F 2
C« 1
E 5
E 2
6JL1964
10SE1964
13CC1964
24SE1S67
0. 00310 )
0.01231 )
0.00405 )
C. 00273 )
1 1264
1 1279
I 14C8
( 1539
C« 1
E 1
A 3
C 3
10AU1964
16SE1964
23MY1967
40C1967
C.C1545 )
0.00393 )
C.OC447 )
C. 00503 )
Species ineertae sedis
Cosoinodisous sp. (aff. C. tuberculatus).
114 CSTUBEVQ TC7 NO OF STATIONS 1
I 1264 C' 1 10AU1964 0.00386 1 1
Genus Cyolotetla Kutz.
KUtzing, Syn. Diat. p. 7. 1834.
Cyclotella antiqua Wm. Smith
Cyalotella antiqua Wm. Smith, Syn. British Diat., p. 28, pi. 5, fig. 49.
1853.
33
-------
Cells cylindrical with concentrically undulate valves, either concave or
convex in the center. Specimens from Lake Michigan from 12-30y in diameter.
The marginal zone is narrow, only about one-third the radius of the valve.
The marginal striae are about 16-18 in lOp at the margin, without visible
substructure and irregular in length. Regularly spaced thickened ribs, be-
low the plane of focus of the striae, appear as "shadow lines" near the mar-
gin of the valve, about 5-7 in lOu. The margin of the central area of the
valve is ornamented with conspicuous conical depressions of the surface
whose surface is covered with fine, irregularly arranged puncta. The base
of the conical depression is toward the valve margin and the apex toward
the center. The number of these depressions is variable, depending on the
size of the valve, but usuallv 6-8 are present. The rest of the central
surface of the valve may be without ornamentation or may have a greater or
lesser number of randomly arranged punctae of varying sizes.
This species is very distinctive in appearance and is not easily con-
fused with any other member of the genus occurring in Lake Michigan. It is
never a numerically important part of the plankton populations of the lake
but numerous examples have been found, particularly in samples from the
northern portion of the lake. Previous reports of its distribution indicate
that it reaches its greatest abundance in northern and alpine oligotrbphic
lakes.
115 CYtNTIOU TCT KC CF ST
-------
CF
t 1740
( 1446
1 OJil
0 A
A 3
SH 1
10JN19S4
11JL1967
ieSEl<567
0.00153 1
0.00245 )
0. Oils'! )
( 1255
( 1451
I 135C
0 5
C 7
BH 2
15JL1964
16JL1967
19/1P1967
0.00257 )
0.00394 )
0.42290 )
( 1273
( 1520
I
C1 2
HO 1
10SE1964
18SE1967
C.OC538 ]
C. 00943 )
Cyalotella oomta (Ehr.) Kutz.
Discoplea combo. Ehr., Ber. Akad. Wiss. Berlin, 1842:267.
Cyolotella camta (Ehr.) Klltz., Sp. Alg., p. 20. 1849.
1844.
Cells cylindrical with concentrically undulate valves, either concave
or convex in the center. Specimens from Lake Michigan 7.5-55u in diameter.
Marginal zone about one-half the radius of the valve. Striae in the marginal
zone about 13-18 in lOy at the valve margin, with barely visible substruc-
ture composed of two rows of fine puncta. This feature can be resolved with
certainty only in the larger individuals. Most of the striae are of the
same length and form an even inner margin, but numerous shortened striae of
irregular length are interposed between them and there are often 1-6 more
or less conspicuous slime pores at the margin of the zone that are subtended
by shortened striae. At the outer margin of the valve a row of chambers
occurs below the level of the striae. One of these chambers usually sub-
tends the base of two striae and appears as a "shadow line" between the
striae pairs at high focus. In the smaller individuals these chambers
appear as thickenings near the margin of the valve. The ornamentation of
the central area is highly irregular in this taxon. In the larger individuals
the central area is ornamented with randomly arranged small puncta. In the
smaller individuals the puncta become compressed and may assume a more or
less regular appearance. Many authorities distinguish several varieties on
the basis of the arrangement of the central punctae. While this segrega-
tion appears feasible when working with isolated populations, our observa-
tions lead us to believe that the cited variations grade into one another so
that no morphologic distinction can be made.
117 CYCCNTA TCT NO Of STATIONS 302
(60973 CH 1876 2.92867 ) (
3507 CH 19FE1881 0.05660
46906 CH DE1945 0.03021
(46914 CH 19AP1946 0.03097
146920 CH 20DE1946 0.24032
(46912 CH AP1947 0.01150
146919 CH 5JN1947 0.01062
146922 CH 21AU1947 2.58315
146743 EV 20JN1937 0.00656.
146757 EV 25JL1937 0.04259
146765 EV 30AU1937 0.93-69.8
146760 EV 22SE1937 2.48166.
J4A74R EV 13JDC1937 0.17079:
46768 EV 16MR1938 0.02940
46759 EV 19MY1938 0.01CH3
1223 a 3 18MY1964, 0.00156
1227 C- 2 13HY1964 0.00219
1230 E 2 16PY1964 O.OC593
1233 B 3 5JN2964 0.00714
1237 C' 2 8JN1964 0.00256
U4.n D 6 10JN1964 O.C0460
1244 F 1 11JN1964 0.00548
1247 R 3 14JL1S64 C. 19209
1441 S 6 24JL1964 0.30838
1251 C 7 16JL1S64 0.09271
1254 0 2 15JL1964 0.01532
1257 E 3 14JU964 0.02153
1260 F 3 6JL1964 0.13370
1442 B 6 2AU1964 0.12282
1264 C' 1 10AU1964 0.81094
1267 0 6 18AU1964 0.15132
1270 F 1 10AU1964 5.33696
1272 r.« 1 10SE1964 0.57464
1275 D 2 17SE1964 0.90317
1278 D 6 lfl?E1964 0.08455
3540_ . CH UKY1879 0.13S78 ) ( 3541 CH 1FE1881 1.54553
(46S10 CH CC1945 0.02403 I
(46S17 CH 12JA1946 0.09898
(46S24 CH 10MY1946 O.U26B1
146905 CH JA1947 0.10173
Ci6?16. CH 4MY1947 C. 00441
(46907 CH JLI.947 0.10651
(46758 EV 5JM937 O.C0357
(16770 EV 9JL1937 0.01193
146747 EV 1AU1937 0.07674
(46769 EV 7SE1937 1.34607
(46750 EV 24SE1S37 0.29222
(46767 EV 270C1937 0.05802
146762 EV 18MR1938 0.30878
(46761 EV 27MY1938 0.00273
1225 C 6 15HY1964 0.00392
122S C 2 14MY1964 0.00534
1231 E 3 16MY1964 0.00978
1439 B 6 5JN1964 C. 00200
1238 D 3 11JN1964 C.C1600
1242 E 3 13JN1964 C.C0150
1245 F 2 11JN1964 C. 00692
1248 B 3 24JL1964 2.06905
1249 C 3 ajLl^e* 0.00815
1252 C' 1 16JL1964 0.01674
1255 D 5 15J1.1964 0.17966
1258 F 1 6JL1964 0.12507
1261 B 3 2AU1964 0.75555
1443 B 6 16AU1964 C.46258
1265 C1 2 10AU1964 C.31Z97
126B E 2 15AU1964 1.43615
14'4 B 6 19SE1964 2.97069
1273 C1 2 10SE1964 0.6021B
1276 D 3 18SE1964 0.32409
1279 E 1 16SE1964 0.20419
S46921 CH 23NC1945 C. 12611
(46915 CH 20FE1946 0.0t829
(46923 CH 22NC1S46 0.71032
146909 CH MR1947 0.17303
(46906 CH KY1947 C.C1858
(46913 CH 6AU1947 C.C5230
(46771 EV 11JN1937 C. 01426
(46764 EV 17JL1937 C. 01612
(46763 EV 23AU1937 C. 36526
(46752 EV 15SE1937 1.61080
C46744 EV 60C1937 C. 12193
(46749 EV 12MR1936 C. 03641
(46756 EV 27AP1938 0.01007
(46766 EV 140E193E C. 03169
1226 C 7 16MY1964 C.OC381
1229 0 5 14MY1964 fl. 01480
1232 E 5 16MY1S64 C. 04348
1236 C' 1 8JN1964 0.00350
1239 0 4 11JN1964 C.OC116
1243 E 6 13JN1964 C.C1462
1246 F 3 1UM964 0.04781
1440 b 6 11JL1964 C.C5528
1250 C 6 10JL1964 0.14388
1253 C1 2 16J11S64 0.23279
1256 E 2 14JL1964 0.01466
1259 F 2 6JL1564 C. 15493
1262 B 3 17AU1964 1.1C248
1263 C .7 15AU1964 1.54123
1266 D 9 18AU1964 1.06637
1269 E 3 15AU1964 1.15113
1271 C 7 22SE1964 C.2C892
1274 D 1 17SE1964 C. 47858
1 1277 C 4 18SE1964 1.38803
( 1280 E 2 16SE1964 C. 24508
35
-------
1 1281
1 1284
( 1287
1 1289
( 1292
( 1295
I 1298
( 1301
I 1304
( 1307
1 1310
( 1314
1 1317
I _131P_
( 1323
( 1336
( 1339
1 1342
( 13*5
1 1348
1 1371
( 1408
I 1412
( 1432
( 1436
< 1449
I 1504
I 1508
( 1511
( 1532
( 1535
I 153B
I 1541
( 1377
( 1380
( 1383
1 1386
I 1389
( 1392
1 13<)5
( 1398
1 1556
1 1559
J 1562
1 1565
1 1568
[ 1571
( 1574
( 1547
( 1520
( 1525
( 1528
1 1531
t 1549
1 1550
< 1417
1 1425
( 1402
( 1403
I 1407
I 1420
1 1423
E 3
E 6
F 3
C 7
D 1
D 4
E 1
E 4
F 1
8 6
C1 2
D 4
E 1
E 4
F 1
C 3
C 5
A 4
C 5
E 5
C 3
E 2
A 3
C 5
A 4
E 2
C 3
. .£_2.
A 3
C 3
E 2
A 3
C 7
E 5
E 2
GS 1
GS 4
GS 7
GS10
GS13
GS16
GS19
C-S22
GS 3
GS 7
GS10
C$13
CS16
GS19
GS22
MS 1
HO 1
PW 1
SB 1
GH 1
CO 1
ff I
US 2
HO 2
RA 2
TR 2
FR 2
CA 2
SM 2
IH 2
HA 2
118 CYCCMTVB TCT
160973
(46921
IA69Z3
146906
146745
(46765
(46760
(46748
(46762
( 1244
( 1248
1252
1256
1262
1264
1268
__JLJ^44j4
1275
1279
1445
1294
1297
1300
1303
130"?
13?2
1341
J.3A6
1431
1450
1510
1513
1 1538
( 1542
CH
CH
_CH_
CH
EV
EV
EV
EV
EV
F 1
B 3
C1 1
E 2
B 3
C' 1
E 2
B 6
0 2
E 1
B 6
D 3
D 6
E 3
F 6
C1 1
E 6
C 7
A 3
C 5
C 7
E 5
E 5
E 3
16SE1S64
17SE1964
15SE1964
140C1964
150C1964
150C1964
120C1564
13DC1964
110C1964
10N01964
'9N01964
6N01S64
7N01964
6N01964
27JA1S67
2SHR1967
19AP1967
25AP1967
23AP1967
4KY1S67
7WY1967
23HY1967
31MV1967
13JN1967
15JN1967
16JL1967
14J11967
28AU1967
2SE1967
1SE1967
. 18SE1967
20SE1967
. 23SE1967
110C1967
9MY1967
9MY1967
10MY1967
12MY1S67
12MY1967
12MY1967
13MY1967
14MY1967
30C1967
40C1967
50C1967
50C1967
5DC1967
60C1967
6QC1967
20C1967
18SE1967
2CSE1967
20SEI967
25SE1967
4CC1
C. 04403
0.57685
__CjO24I5__
C. 62643
C. 29106
C. 10533
C.1C130_.
0.08687
C.OC378
C.2C161
0.00667
O.C0756
C. 01454 1
C. 01193 )
C. 00165 )
C.OC32S )
0.01611 )
C. 01426 )
0.00562 )
C.C5334 )
C.OC515 I
C.OC598 )
C. 00468
C. 00197
C. 04001
0.07846
0.48688
1.29725
C. 15512
9.66100
3.82191
C.8E476
C. 04642
C. 01943
C. 04709
6.16591
1.17320
C. 52293
C.C1177
2.96610
8.04661
5.34132
C. 39338
3.11190
<:. I iet>«
C. 19150
C.C2621
C.1C004
C, 046 13
t.07547
C. 21002
1,5-0108
C.41S98
C.O1507
C. 26634 )
C.OC441 }
C.023S2 )
C. 06872 )
C.C4247 >
C. 406 35 )
C. 12816 )
C.025S5 J
NO OF STATICNS 107
1876
23N01945
22N01946
MY1947
3JL1937
30AU1937
22SE1937
130C1937
18MR1938
11JN1964
24JL1964
16JL1964
14JL1964
17AU1964
10AU1964
15AU1964
19SE1964
17SE1964
16SE1964
140C1964
150C1964
140C1964
130C1964
130C1964
7N01964
21AP1967
12JN1S67
16JL1967
29AU1967
31AU1967
23SE1S67
110C1967
0.73217
0.00065
0.1C928
0.00066
0.02090
0.07250
0.39391
0.02135
0.04411
O.OC110
0.01773
0.00279
0.00183
O.C126C
0.00772
0.00821
0.00606
0.00645
O.OC393
0.02935
0.00330
0.00190
0.00716
0.00560
0.00667
0.00134
0.00257
0.00381
0.01265 i
0.01657 I
0.16273 1
( 3540
(46S17
(46920
(46SC7
[46747
(46769
(46750
(46767
(46772
( 1246
( 1440
( 1253
( 1258
( 1442
( 1265
( 1269
( 1272
I 1277
1 1281
1 1289
( 1295
.„( .U88
( 1301
( 13C5
( 1323
( 1348
( 1451
I 1511
( 1540
CH
CH
CH
CH
EV
EV
EV
EV
EV
F 3
B 6
C1 2
F 1
B 6
C' 2
E 3
C1 1
D 4
e 3
C 7
D 4
E 4
F 2
F 1
e. 5
C 7
E 2
E 2
C 5
11CY1879
12JA1946
200E1946
JL1947
1AU1937
7SE1937
24SE1937
270C1937
1SAP1938
1 UN 1964
11JL1964
16JL1964
6JL1964
2AU1964
10AU1964
15AU1964
10SE1964
18SE1964
16SE1964
140C1964
150C1964
120C1964
13DC1964
110C1964
8N01964
6N01964
19AP1967
23AP1967
16JL1967
1SE1967
24SEIS67
40C1967
10CC1967
0.00466
0.00083
0.04344
C. 00099
0.00495
0.06513
0.03299
0.00774
0.00710
C. 00593
0.00737
0.0022B
0.00944
0.00341
0.00894
0.03563
C. 01642
C. 03098
0.01570
0.01165
C. 00440
0.01784
0.00808
0.00883
0.00173
0.00258
C. 00418
0.00180
0.00137
0.00316
0.00197
0.04604
0.00545
0.00993
0.0215S
4 3541
(46914
(469C5
(46922
(46763
(46752
(46744
146768
(46756
< 1247
( 1441
1255
1260
1263
12(6
1270
1274
1278
1283
1287
1293
1296
1299
1302
1306
1320
1324
1343
1373
1449
1454
1509
1512
1537
1541
CH
CH
CH
CH
EV
EV
ev
£V
EV
e 3
B 6
D 5
F 3
C 7
D 3
F 1
D 1
D 6
E 5
F 3
0 2
D 5
E 2
E 5
E 4
F 2
A 6
C 3
C 5
E~~3
1FE1881
19AP1S46
21MI1947
15SE1937
16CB1S38
14 JL 1964
15JL1964
15AU1964
10AU1964
18SE1964
15SE1964
14QC1964
13QC1964
7N01964
19AP1967
16JL1967
2SE1967
24SE1967
0.17607 )
C.OC107
0.02617
C. 13061
O.C1470
C. 02134
0.00770
C. 01201
C. 03812
C. 00384
C. 01001
C. 01180
C. 03644
C. 00414
C. 00069
C.C1146
C.C7C66
C. 17683
36
-------
Cyolotella cryptica Reimann, Lewin and Guillard
Cyolotella OTyptiea Reimann, Lewin and Guillard, Phycologia, 3:82, figs.
4-6. 1963.
Cells cylindrical with slightly concentrically undulate, nearly flat,
valves. Cells always occur singly. Specimens from Lake Michigan 8-16y in
diameter. Ornamentation of the marginal zone consists of rather broad,
chambered, striae, without substructure visible under the light microscope,
separated by radiate costae. Striae and costae about 6-9 in lOp at the
margin of the valves. A rather inconspicuous spine occurs at the marginal
end of each of the costae. The chambers of the costae grade into the sur-
face of the central area so that the central area has no well defined border.
The striae are also somewhat variable in length, especially in the larger
individuals. The only visible ornamentation of the central area is one or
more (usually less than 5) distinct puncta. These puncta are somewhat ran-
dom in arrangement, but are never central and are most often confined to
one side of the central area.
This species resembles C. menegkLn-iana and several of its described
varieties. Evidence begins to accumulate that entities described as C.
meneghi.n'iana include a number of species of superficially similar morphology
that are difficult to distinguish under the light microscope.
According to our evidence C. cryptica is quite rare in the Lake Michi-
gan flora and the majority of our records come from harbors and from inshore
areas subject to appreciable chloride contamination. Its distribution in
this respect is quite similar to that of C. meneghin-iana and some of its des-
cribed varieties. With adequate optical equipment, determination of the two
entities is not especially difficult but care must be taken and previous re-
cords, especially those derived from observations of living material, should
be treated with caution.
IIS CYCRYPTl TOT NO OF STATIONS
1269
1282
1451
1533
1537
1542
E 3
E 1
C 7
A 4
E 3
E 3
15AU1964
16SE1964
16JL1967
19SE1967
24SE1967
11QC1967
0.00274
0.01108
C.CC394
0.03714
0.03450
0.07628
1 1273
( 1284
1 1452
( 1534
I 1538
( 1543
C1 2
E 6
E 2
A 6
E 5
E 5
10SE1964
17SE1964
14JLIS67
19SE1967
23SE1967
100C1967
0.00536
0.00318
0.01490
0.00310
C. 00552
0.03591
1274
1348
15C4
1536
1541
1575
0 1
E 5
A 3
E 2
E 2
C-S28
17SE1964
23AP1967
28AU1S67
24SE1967
11CC1967
60C1967
C.CC469 )
0.00137 1
C.CC741 )
C. 07362 )
C. 20755 )
C. 00129 )
Cyclotetla 'kuetz'ingi-cma. Thwaites
Cyclotella kVitzingiana Thwaites, Ann. Mag. Nat. Hist., ser. 2, 1:169.
1848.
Cells cylindrical with slightly excentrically undulate valves. Speci-
mens from Lake Michigan 7-32ij in diameter, always occurring singly. Mar-
ginal zone somewhat variable in width, about one-quarter—one-half the
radius of the valve. Ornamentation of the marginal zone composed of non-
punctate striae, 12-14 in 10y at the margin of the valve. The striae are
of variable length, especially in the smaller individuals. In the larger
individuals the inner border of the marginal zone is regular due to the
37
-------
fact that the longer striae are all of approximately the same length. In
the smaller individuals the border between the two zones appears less regu-
lar due to the fewer number of striae present. The ornamentation of the
central area is highly variable in this taxon. A number of distinct puncta
are present in all individuals. These may be of larger or smaller size and
may be either randomly arranged or disposed radially. Other structures
such as chambers or thickenings of the valve surface are lacking.
A number of varieties of this species have been described on the basis
of the various patterns of ornamentation of the central area. Individual
specimens can be found in the collections from Lake Michigan that are iden-
tical to nearly all of these. When populations are considered, these varia-
tions grade into one another so completely that no such distinctions can be
made.
.._ 120 CYKUTZ1N TCT NC CF STATIONS 135
(
(
3540 CH ll*Y1879 0.00932
46905 CH JA1947 0.00123
46747 EV 1AU1937 0.00248
1440 B 6 11JL1964 O.OC36S
1259 F 2 6JL1964 0.00310
1265 C' 2 1CAU1964 0.00894
1270 f 1 10AU1S64 0.00817
1280 E 2 16SE1964 0.01362
1283 E 5 16SE1964 0.03065
1292 0 1 15CC1964 0.00745
1295 0 4 15GC1964 0.03568
1299 E 2 12DC1964 0.00628
1302 E 5 13QC1964 0.03239
1307 B 6 N01964 0.00361
1319 E 3 7N01964 0.01833
1322 E 6 7N01964 O.OC333
1345 C 5 25AP1967 0.00585
1376 E 5 6PY1967 0.00562
1504 A 3 28AU1967 0.00247
1511 E 2 1SE1967 0.52719
1532 A 3 18SE1967 0.00329
1535 C 7 20SE1967 0.00322
1538 E 5 23SE1967 0.59659
1541 E 2 110C1967 0.4C977
1 1379 GS 3 9MY1967 0.00309
1382 GS 6 10MY1967 0.00278
1387 GS11 12MY1967 0.10694
1390 GS14 12MY1567 0.05285
1393 GS17 13KY1967 0.02192
1396 GS20 13MY1967 0.00222
1555 GS 2 30C1967 0.74153
1558 GS 5 40C1967 0.61440
1561 GS 5 40C1967 1.17391
1564 GS12 5GC1967 0.38515
1567 GS15 50C1967 0.73987
1570 GS18 5DC1967 0.93217
1574 GS22 6CC1967 0.11218
1520 HO 1 18SE1967 O.OC943
1526 HO 1 20SE1967 0.06827
1529 KU 1 20SE1967 0.25183
1 1548 CA 1 3QC1967 0.36891
( 1552 SH 1 60C1967 0.01981
1 1428 HU 2 29MY1967 0.00301
( 1401 MQ 2 6PY1967 0.00588
3541 CH 1FE1881 0.06847
46?C7 CH JL1947 C. 00099
46744 EV 6GCIS37 C.004B8
1441 B 6 24JL1564 0.01762
126C F 3 6JL1964 C. 00191
1266 C 3 16AU1964 C. 22099
1272 C' 1 10SE1964 0.03694
1281 E 3 16SE1964 O.C1570
1264 E 6 17SE1964 0.04766
1253 0 2 150C1964 0.00472
1296 0 5 140C1964 0.00393
1300 E 3 130C1964 0.02148
1303 E 6 130C1964 0.01679
1309 C* 1 10N01964 C. 00643
1320 E 4 7N01964 C. 00620
1339 C 5 28KR1967 C. 00312
1346 C 7 21AP1967 C. 00401
1410 A 6 24PY1967 0.00564
1S09 C 5 2SE1967 C. 01009
1512 E 3 ISE1967 1.37427
1533 A 4 19SE1967 0.00464
1536 f. 2 24SE1967 0.11452
1539 C 3 40C1967 C.02013
1542 E 3 110C1967 12.81530
1380 GS 4 9HY1967 C.C0168
1383 GS 7 1QHY1967 0.01871
1388 GS12 12MY1967 0.56712
1391 GS15 12MY1967 0.01915
1394 GS18 13HY1967 C. 03096
1398 GS22 14MY1967 0.00607
1556 GS 3 30C1967 C. 49017
1559 GS 7 4GC1967 0.35672
1562 GS1C 5CC1967 1.55425
1565 GS13 50C1967 C. 64395
1568 GS16 50C1967 0.13564
1571 GS19 60C1967 C. 00351
1575 GS28 60C1967 0.01032
1522 BH 1 16SE1S67 0.00162
1527 TR 1 20SE1967 0.01258
1530 FR 1 24SE1S67 C. 02000
1549 MO 1 40C1967 0.21927
1550 MR 1 50C1967 C. 16107
1427 LU 2 29MY1967 0.01211
1402 TR 2 6HY1967 C. 01083
.
35C7 CH 19FE1881 C. 01132
46922 CH 21AU1947 C.CC048
1232 E 5 16MY1964 C.CC174
1253 C' 2 16JL1964 C.CC228
1264 C' 1 10AU1964 C.CC193
1268 E i 15AU1964 0.00274
1279 1 1 16SE1964 C.OC393
1282 E 4 16SE1964 C.C4432
1285 F 1 15SE1964 0.01165
1294 D 3 150C1964 O.CC659
1298 E 1 120C1964 O.OC539
13C1 6 4 130C1964 C. 03091
13C6 F 3 UOC1964 C.OC832
1317 E 1 6NC1964 C.OC191
1321 E 5 7N01964 C.CC638
1340 C 7 28HR1967 C.OC073
1375 E 3 7HY1967 C.CC241
1449 C 3 UJL1S67 C. 02293
1510 C 7 29AU1967 C.OC632
1513 E 5 31AL1967 1.77359
1534 A 6 19SE1967 C.OC931
1537 E 3 24SE1967 5.73622
1540 C 5 40C1967 C.2C350
1543 E 5 100C1967 1.1C616
1381 CS 5 10P1T1967 C.OC239
1364 GS 8 10MY1967 C.C1479
1389 GS13 12MY1967 0.1C056
1392 GS16 12MY1967 C. 05548
1395 GS19 13HY1967 C. 00822
1554 GS 1 30C1967 C. 3 1310
1557 GS 4 3DC1967 C. 32885
1560 GS 8 40C1567 1.20909
1563 GS11 50C1967 C. 55627
1569 GS17 5QC1967 C. 38054
1573 GS21 60C1967 C.C16BO
1547 r% 1 20C1967 C.0079B
15^3 RA 1 19SE1967 C.CC923
1528 SB 1 20SE1967 1.S7378
1521 GH 1 25SE1967 C.OC645
1551 ES 1 50C1S67 3.96198
1553 a
rated by radiate costae. Striae and costae 6-9 (usually 7 or 8) in lOu at
the margin of the valve The striae are all of equal length and have no
substructure visible under the light microscope. The width of the marginal
38
-------
zone is about one-half the radius of the valve. The border between the two
zones of the valve surface is very well marked and regular. The ornamenta-
tion of the central area consists of very fine and indistinct radiating
striae occasionally with one or more larger isolated puncta. In some speci-
mens the central area has no visible structure.
As noted in the discussion of C. cryptica, the reports of this species
probably include several taxa of similar morphology. In Lake Michigan the
nominate variety of C. meneghiniana is much rarer than C. meneghiniana var.
planet described below. Our limited observations indicate that differences
between these two taxa are great enough so that further study may prove them
to be separate species. Final determination of the status of the numerous
described taxa that are included in C. meneghiniana by most authorities awaits
the patient research of the monographer.
123 CYMENEGH TOT ND Of STATIONS 52
3540
46905
I 1226
1 1266
( 1274
I__U80
1306
1316
1324
1343
1409
1431
1448
1508
1533
1537
1540
1543
CH
CH
C 7
D 3
0 1
_E_2
F 3
D 6
F 2
A 6
A 4
A 3
A 6
C 3
A 4
E 3
C 5
E 5
11MY1879
JA1947
16PY1964
1BAU1964
17SE1964
16SE1964
110C1964
9N01964
6N01964
19AP1967
23MY1S67
12JN1967
10JL1967
2SE1967
19SE1967
24SE1967
40C1967
10CC1967
O.OC466 ) I 35C7
0.00368 1 (46916
C.CC761 )
1.35050 I
0.00469 )
O.OC681 ). .
0.00554 )
0.00378 1
0.00233 1
O.OC069 1
0.00298 )
O.CC515 t
0.00354 )
0.00400 I
0.00464 )
0.01294 )
O.OC496 )
0.05746 )
Ch
CH
1252 C1 1
..1211 £__?_
1276 0 3
1286 f 2
1311
1320
1341
1348
1411
" i~450"
1511
1534
1538
1541
0 1
E 4
A 3
E 5
C 3
A 4
C 5
E 2
A 6
E 5
E 2
19FE18S1
4HY1S47
16JL1964
22SC1964
1BSE1964
15SE1964
6N01964
7N01964
19AP1967
23AP1967
31MY1967
13JN1967
16JL1567
1SE1967
19SE1967
23SE1967
110C1967
C. 01132
C. 00034
0.00279
C. 00653
0.01118
0.03284
0.00774
C. 00207
0.00542
C. 00137
0.00410
0.00255
O.C0381
0.00921
C. 00620
0.03867
(46920
(46922
I 1264
( 1272
( 1279
( 1287
( 1315
( 1323
( 1342
( 1370
( 1416
I 1434
I 1451
( 1532
( 1535
( 1539
0.079B3 ) ( 1542
CH
CH
C' 1
C1 1
E 1
F 3
0 5
F I
A 4
A 6
E 5
C 5
C 7
A 3
C 7
C 3
E 3
20DE1S46
21AU1947
10AU1964
10SE1964
16SE1964
15SE1964
9N01964
6N01964
19AP1967
3MY1967
28MY1967
17JN1967
16JL1967
18SE1967
20SE1967
40C1967
11QC1967
C.CCC31
C. 00145
C.CC96S
0.06157
C.OC393
0.0050C
O.CC455
0.00139
C. 00541
C. 00230
C.C1749
C.OC299
C. 00197
C.C1971 1
C.OC966 )
C. 00503 )
C.C3560 )
Cyalotella meneghiniana- var. plana Fricke
Cyolotella meneghiniana. var. plana Fricke, A. Schmidt's Atlas Diat., pi.
222, fig. 32. 1900.
Cells cylindrical with slightly concentrically undulate, nearly flat,
valves. Cells occur singly. Specimens from Lake Michigan 8-38y in dia-
meter. Ornamentation of the marginal zone consists of rather broad cham-
bered striae separated by rather wide and only slightly thickened radial
ribs. Radial striae and costae 7-9 in 10y, all of the same length, forming
a smooth border with the central area. The striae and costae occupy about
one-half the radius of the valve. At the distal end of each of the costae
there is a more or less conspicuous spine. The ornamentation of the central
area consists of very fine and indistinct striae that radiate about a cen-
tral point. In addition one or more large distinct, isolated puncta usually
occur on one side of the central area about equidistant between the center
of the valve and the outer margin of the central area.
As noted above, this taxon could be afforded specific status on the
basis of our observations from Lake Michigan because of its constant unique
morphology and distribution pattern. We, however, choose to retain the
established usage until more evidence is available from other habitats.
1?4 CYMENEFP 1
OF STATIONS
11HY1879 0.00466 1 146924 CH
22SE1937 0.00492 1 (46744 EV
10I-Y1946 0.00071 1
60C1937 0.00488 I
2KU1947
270C1937 C.C0387 )
39
-------
_
1230 E ? 16KY1564 O.CC296
1237 C1 2 8JN1964 0.01289
1243 E 6 13JN1964 0.00209
1254 0 2 15JL1964 0.00192
1259 F 2 6JL1964 O.C0310
1266 0 3 16AU1964 0.00351
1273 C1 2 1CSE1964 0.01613
1278 D 6 18SE1564 0.00769
LJ2B3 E 5 16SE1564 0.00613
1287 F 3 15SE1964 0.01001
1298 E 1 120C1964 0.00808
1301 E 4 13CC1964 0.00442
1305 F 2 11DC1964 0.00863
1316 D 6 9N01964 0.00378
1321 E 5 7N01964 O.OC319
1343 A 6 19AP1967 0.00208
1370 A 6 3MY1967 O.OC230
1376 E 5 6KY1967 O.OC2B1
1416 E 5 28MY1967 0.03936
1447 A 4 11JL1967 0.00702
1451 C 7 16JL1967 O.OC394
1454 E 5 15JL1967 0.00600
1508 C 3 7SF1967 O.nOinn
1513 E 5 31AU1967 0.00507
1534 A 6 I9SE1967 0.15512
1537 E 3 24SE1967 0.05607
1540 C 5 40C1967 0.00496
1543 E 5 100C1967 0.05746
13B.2 _.iS_6 LOMY19&7.. 0.00278
1390 GS14 12MY1S67 0.01174
1394 GS18 13KY1967 0.00344
1398 GS22 14MY1967 0.00304
1556 GS 3 30C1967 0.86041
1559 GS 7 40C1967 0.83584
1.562 ._.GS1C 50C1967 0.06661
156-5 GS13 50C1967 0.28395
1568 GS16 5DC1967 C.01B76
1572 GS20 60C1967 0,01352
.1515 . _._GJ28 60C1967 0.11354
1524 PI 1 20SE1967 0.13135
1521 SH 1 18SE1967 0.05191
1525 PM 1 20Stl967 0.01393
1579 KM 1 20SE1967 0.05996
1545 ML 1 2QC1S67 0.07433
1551 ES 1 50C1967 0.14378
1428 HU 2 29MY1967 0.22297
1427 LU 2 29MY1967 0.07564
1350 BH 2 19AP1967 1.05725
1401 MQ 2 6MY1967 0.69379
1352. KW 2 21AP1967 0.00859
1429 NL 2 29CY1967 0.55208
1420 1H 2 23CY1S67 0.03021
1423 MA 2 25PY1967 O.OC856
1232 E 5 16MY1964 0.00348 1
1239 D 4 UJN1964 0.00116
1248 B 3 24JL1964 C.CC394
1256 E 2 14JL1964 0.00366
1?64 C' 1 10AU1964 0.01545
1269 E 3 15AU1964 0.00822
1274 D 1 17SE1964 0.00938
1281 E 3 16SE1964 C. 00785
1285 F 1 15SE1964 0.02912
1291 C1 2 160C1964 0.00489
1299 E 2 12QC1964 0.00314
1303 E 6 130C1964 0.00560
1311 D 1 8N01964 0.00516
1317 E 1 6N01964 0.00191
1341 A 3 19AP1967 0.03037
1346 C 7 21AP1967 C. 00401
1*71 C 3 4MY1967 0.00231
1409 A 4 23HY1967 0.00595
1432 A 4 13JN1967 0.00511
1448 A 6 10JL1967 0.01061
1452 E 2 14JL1967 0.01703
1504 « 3 28AU1967 0.19010
1511 E 2 1SE1967 0.00307
1532 i 3 18SE1967 O.CB870
1535 C 7 20SE1967 0.05472
1538 E 5 23SE1967 0.07181
1541 E 2 110C1967 C. 44170
1377 GS 1 9PY1967 0.00792
1388 GS12 12MY1967 C. 02413
1391 GS15 12CY1967 0.00479
1396 GS20 13HY1967 C. 00518
1554 GS 1 3QC1967 0.26329
1557 GS 4 3CC1967 0.45964
1560 GS e 40C1967 0.53370
1563 GS11 50C1967 0.11692
1566 GS14 50C1967 0.15410
1569 GS17 5CC1967 C. 16054
1573 GS21 60C1967 C. 05040
1544 MU 1 2CC1967 C. 28117
1546 LU 1 20C1967 C. 09503
1522 BH 1 18SE1967 1.22536
1526 MO 1 20SE1967 0.04551
1530 FR 1 24SE1967 C. 02000
1548 CA 1 3GC1967 0.03816
1550 MR 1 50C1967 C. 56994
1426 CS 2 29PY1967 0.13648
1417 HO 2 22MY1967 0.59818
( 1425 RA 2 25MY1967 0.03536
( 1402 TR 2 6MY1967 0.23284
( 1353 FR 2 23AP1967 0.05274
( 1407 SM 2 14MY1967 0.00597 )
( 1421 CH 2 23NY1967 0.03470 I
123t C' 1 GJMS64 C_-J-£24^—
1240 D 6 10JN1964 O.UC307
1253 C- 2 16JL1964 A-CC"o
1257 E 3 14JL1964 C.CC239
1265 C' 2 10AU1964 C.C111B
1272 C« 1 IOSE1964 C.44J30
1275 D 2 17SE1964 C-CJliJS-
1282 E 4 16SE1964 C.C11U"
1286 F 2 15SE1964 C.C2189_
1294 0 3 150C1964 C.CC330
1300 E 3 13DC1964 0.00358
1304 F 1 110C1964 C.OC494
1313 D 3 9N01964 C. 00193
1318 E 2 7NC1S64 C.003BQ
1342 A 4 19AP1967 C.CC902
1369 A 4 4MY1967 C.C1118
1374 E 2 7HY1967 ... C.CC598.
1411 C 3 31MY1967 C.OC410
1*46 A 3 11JL1961 C.OC489
1449 C 3 16JL1S67 C. 00382
1453 E 3 15JL1967 C.C1264
1505 A 4 28AU1967 C.OC515
1512 E3 1SEI?_67.__ C.C0785
1533 A 4 19SE1567 C. 22282
1536 E 2 24SE1S67 C. 03545
1539 C 3 40C1967 C. 01006
1542 E 3 110C1967 C.1C679
1381 CS 5 10MY1967 C. 00477
1389 CS13 12HY1967 C. 00516
1392 GS16 12MY1967 C. 00308
1397 CS21 13MY1967 C.CC196
1555 GS 2 30C1967 C. 59322
1558 CS 5 4DC1967 C. 42999
1561 CS 9 40C1967 C. 19957
1564 GS12 50C1967 0.09382
1567 CS15 50C1967 C. 22228
1571 CS19 60C1967 C. 09074
1574 GS22 60C1967 C. 07191
1547 CS 1 20C1967 C.C8782
1520 FO 1 18SE1967 C. 67424
1523 RA 1 19SE1967 C.3£745
1527 TR 1 20SE1967 C. 03774
1531 £H I 25SE1967 23.53339
1549 CO 1 40C1967 1.15116
1553 SG 1 60C1967 C.OC734
1351 (•! 2 21AP1967 C.CC621
141B SH 2 22HY1967 C.C1555
1399 FM 2 5HY1967 C. 02040
1400 SB 2 6MY1967 C.8C415
1354 GH 2 25AP1967 C.C7422
1406 GB 2 13HY1967 0.01617
1422 CA 2 23HY1967 C.C3576
—
—
Cyelotella miehiganiana Skv.
Cyclotella mich-iganiana Skvortzow,
figs. 3, 10, 18. 1937.
Amer. Midland Nat., 18:658, pi. 1,
Cells cylindrical with strongly eccentrically undulate valves. Cells
always occur singly. Specimens from Lake Michigan 5-22p in diameter. Width
of marginal zone variable, usually about one-half the radius of the valve.
Ornamentation of the marginal zone composed of radial striae of slightly ir-
regular length and without visible substructure. Radial striae 14-18 in
10v at the margin of the valve. Central area of the valves strongly undu-
late, usually with a number of large, randomly arranged, puncta on the
raised portion. The sunken portion of the central area may be without visible
ornamentation or may have a few puncta similar to those on the raised portion.
This species is abundant in some collections from Lake Michigan. It
apparently is cyclical in occurrence, being common or dominant in the plank-
ton in some years and very rare or lacking in collections from the same area
and season in other years. The taxonomic position of this entity is diffi-
cult to determine with certainty. Skvortzow (I.e.) has p6inted out its af-
finities to C. striata (Kxitz.) Grun. and C. oaspia Grun. Both of these
species find their primary habitat in brackish water and, although they re-
semble this species in genera] morphology, sufficient differences exist to
separate them with little doubt.
40
-------
TCT NC CF STATIONS 267
(60973 CH 1876 1.65326 ) I 354C CH 11KY1979 0.02330
( 3507 CH 19FEL881 0.01132 1 (46S10 CH OC1945 0.07100
(4&908 C.H TFKS4S (1.06(145
(46914 CH 19AP1946 0.01602
(4692C CH 20DE1946 0.13032
(46912 CH AP1947 0.01150
146919 CH 5JN1947 0.00607
(46922 CH 21AU1947 2.20513
146757 EV .25JL1937 0.22146
(46769 EV 7SE1937 0.06513
(46750 EV 24SE1937 0.44304
(46767 EV 27CC1937 0.06963
(46762 EV 1BMR1938 1.01456
[46766 EV 14CE1938 0.06337
( 1231 E 3 16MY1964 0.01223
( 1234 B 3 18JNL964 0.00843
( 1236 C' 1 8JN1964 0.00175
( 1239 0 4 11JN1964 0.00116
1 1244 F 1 11JN1964 0.00548
( 1248 B 3 24JL1964 0.01182
( 1251 C 7 16JL1964 0.00290
( 1255 0 5 15JL1964 0.00513
( 1258 f 1 6JL1964 0.03068
( 1261 B 3 2AU1964 0.12364
( 1443 B 6 16AU1964 2.4?081
( 1267 D 6 18AU1964 0.03243
1 1270 F 1 1*OAU1964 3.04969
( 1272 C' 1 10SE1964 0.57464
( 1275 0 2 17SE1964 0.49674
( 1278 0 6 18SE1964 0.04996
1 1281 E 3 16SE1964 0.19621
( 1284 E 6 17SE1964 0.66724
( 12B7 F 3 15SE1964 2.45196
( 1290 C1 1 160C1964 0.02653
( 1293 D 2 150C1964 0.11791
• 1296 D 5 140C1964 0.64917
( 1299 E 2 12QC1964 0.21992
( 1302 E 5 13QC1964 1.230B7
1 1105 F 2 11QC1964 0.60380
( 1308 C 7 6M01S64 0.02129
1 1311 D 1 6N01964 0.03612
( 1314- 0 4 9N01964 C. 11770
j 1317 E 1 6N01964 0.02872
( 1320 E 4 7NG1964 0.31851
1 1323 F 1 6N01964 0.58537
( 1336 C 3 27JA1567 0.00963
( 1339 C 5 28MR1967 0.04053
( 1342 A 4 19AP1967 0.08662
I 1345 C 5 25AP1967 0.18323
( 1348 E 5 23AP1967 O.OC822
( 1373 C 7 5MY1967 0.02282
(46917 CH 12JA1946 0.23427
(46924 CH 10MY1946 0.01834
(46905 CH JA1947 0.11398
(46916 CH 4KY1947 0.00136
I46SC7 Ch JL1947 0.00444
(46758 EV 5JN1937 0.00713
(46763 EV 23AU1937 0.40584
(46752 EV 15SE1937 0.10884
(46744 EV 60C1937 0.10730
(46749 EV 12PR1938 0.01214
(46759 EV 19MY1936 0.00338
( 1376 E 5 6MY1967 0.00562 )
< 1411 C 3 31MY1967 0.02462 )
( 1416 E 5 28MY1967 0.00437 )
( 1434 C 5 17JN1567 O.OC598 )
( 1446 A 3 11JL1967 0.00489
( 1451 C 7 16JL1967 O.OC394
( 1454 E 5 15JL1967 0.01000
( 1506 A 6 29AU1967 0.01046
( 1510 C 7 29AU1967 0.55327
I 1513 E 5 31AU1967 1.77359
( 1534 A 6 19SE1967 0.01551
1 1537 t 3 24SE1S67 1.10411
( 1540 C 5 40C1967 0.59066
( 1543 E 5 10CC1967 1.5G84C
( 1381 GS 5 10MY1967 0.00954
{ 1384 GS 8 10CY1967 O.C1109
( 1387 GS11 12MY1967 0.01980
( 1390 GS14 12fY1967 0.01174
( 1393 GS17 13KY1967 0.0054B
L 1396 GS20 13MY1967 0.00148
( 1556 GS 3 30C1967 2.55514
( 1559 GS 7 4QC1967 1.34644
( 1562 GS1C 50C1967 0.3G096
( 1568 GS16 50C1967 0.01154
( 1571 GS19 6QC1967 C.OC293
( 1575 GS28 60C1967 0.00258
( 1524 MI 1 20SE1967 0.02189
( 1521 SH I 18SE1967 0.02885
( 1526 MO 1 20SE1967 0.03982
( 1529 KM 1 20SE1967 0.09593
( 1545 HI 1 20C1967 0.4257C
1 1551 ES 1 50C1967 1.66147
( 1553 SG 1 6DC1967 0.03672
( 1350 BH 2 19AP1967 0.00220
( 1400 SB 2 .6KY1967 0.00596
( 1403 CA 2 10MY1967 0.32693
( 1407 SM 2 14MY1967 0.01791
( 1421 CH 2 23MY1S67 0.05205
1229 D 5 14KY1964 0.00846
1232 E 5 16WY1964 C.C8000
1235 C 7 16JMS64 0.00282
1237 C1 2 8JN1964 0.00258
1240 D 6 10JM964 0.00153
1245 F 2 11JN1964 0.10027
1441 B 6 24JL1964 0.00661
1252 C1 1 16JL1964 0.00837
1256 E 2 14JL1964 0.00550
1259 F 2 6JL1964 C. 08366
1262 B 3 17AU1964 C. 58799
1263 C 7 15AU1964 1.68134
1268 E 2 15AU1964 0.42127
1444 B 6 19SE1964 1.37925
1273 C1 2 IOSE1964 1.37642
1276 D 3 1BSE1964 C. 30174
1279 E 1 16SE1964 0.11387
1282 E 4 16SE1964 0.23269
1265 F 1 15SEl9t4 5.29963
1288 B 3 15CC1964 0.03701
1291 C' 2 16CC1S64 C. 03180
1294 0 3 15CC1964 0.35600
1297 D 6 14CC1964 0.00952
1300 E 3 130C1964 1.25291
1303 E 6 13CC1964 C. 17911
1306 f 3 110C1S64 1.06713
1309 C1 1 10N01964 C. 03216
1312 C 2 8N01964 C. 05277
1315 D 5 9NC1964 0.06824
1318 E 2 7N01964 0.15791
1321 E 5 7N01964 0.44691
1324 F 2 6N01964 0.25155
1337 C 3 2KR1961 C. 08084
1340 C 7 28KR1967 0.00364
1343 A 6 19AP1967 C.OOC69
1346 C 7 21AP1967 0.06142
1368 A 3 4MY1567 0.00943
1374 E 2 7KY1967 0.00299
1408 A 3 23MY1967 0.00447
1413 C 7 25HY1967 0.00316
1431 A 3 12JN1967 0.00257
1435 C 7 13JN1967 0.00316
1449 C 3 16JU967 0.17196
1452 E 2 14JL1967 0.01277
1504 A 3 28AU1967 0.31354
1508 C 3 2SE1967 0.08792
1511 E 2 ISE1967 1.18182
1532 A 3 18SE1967 C. 04599
1535 C 1 2CSE1967 0.05472
1538 E 5 23SE1S67 0.32591
1541 E 2 110C1967 0.74504
1379 GS 3 9KY1967 0.00928
1382 GS 6 10MY1967 0.03608
1385 GS ? 1CMY1967 C. 00942
138B GS12 1ZKY1967 0.04827
1391 GS15 12KY1967 0.00479
1394 GS16 13MY1967 0.01204
1554 GS 1 30C1967 0.06404
1557 GS 4 3DC1967 3.13901
1560 GS 8 4CC1967 1.65305
1566 GS14 50C1967 C. 02752
1569 GS17 50C1967 C. 23040
1573 GS21 60C1967 0.00448
1544 MU 1 20C1967 0.00238
1546 LU 1 20C1967 C. 03001
1522 BH 18SE1967 0.00365
1527 TR 2CSE1S67 0.03145
1530 FR 24SE1S67 C. 08001
1548 CA 3CC1967 4.47780
1552 SM 60C1967 0.02641
1351 MI 2 21AP1967 0.00310
1399 Ph 2 5HY1967 0.00680
1352 KM 2 21AP1967 0.00859
1404 MC 2 10CY1967 C. 05081
1349 C( 2 19AP1967 0.01437
1422 GA 2 23KY1967 0.00511
1 3541 CH 1FE1881 C. 04891
(46921 CH 23N01945 C. 06596
(46915 CH 2CFE.1S.46 0./E451
(46923 CH 22N01946 C. 39122
(469C9 CH MR1947 r.3r94ft
(46906 CH MY1947 C. 00465
(46913 Ch 6AU1947 C.C1046
(46764 EV 17JL1937 C. 24980
(46765 EV 30AU1937 C.2C636
(46760 EV 22SE1937 C. 13787
(46748 EV 130C1937 C.C4270
(46768 ev 16MR1938 C. 07350
(46761 EV 27KY1938 C.OC545
1230 E 2 16MY1S64 C. 01482
1233 B 3 5JN2964 O.C0476
1439 B 6 5JN1964 0.00799
1238 D 3 11JM964 C.CC400
1241 E 2 13JN1964 0.00148
1246 F 3 11JMS64 C.C1793
1250 C 6 10JL1964 C.OC822
1254 D 2 15J11964 O.C1532
1257 E 3 14JL1964 C.CC479
1260 F 3 6JL1964 C.02B65
1442 B 6 2AU1964 C.C5118
1265 C1 2 10AL1964 C.C7154
1269 E 3 15AU1964 C. 95927
1271 C 7 22SE1964 C. 13057
1274 D 1 17SE1964 C. 12668
1277 D 4 18SE1964 0.32842
1280 E 2 16SE1964 C. 10212
1283 E 5 16SE1964 C.5C877
1286 F 2 15SE1964 2.80210
1289 C 7 140C1964 O.C7475
1292 0 1 150C1964 C. 18634
1295 D 4 150C1964 1.14756
1298 E 1 120C1964 C.C377C
1301 E 4 130C1964 1.13044
13C4 F 1 HCC1964 C.6C506
1307 B 6 N01964 C. 14071
1310 C' 2 10KC1964 C. 14286
1313 0 3 9N01964 C.C9459
1316 D 6 9NC1964 O.OC756
1319 £ 3 7N01964 0.46605
1322 E 6 7N01964 C. 12664
1325 F 3 6MC1964 0.13350
1338 C 3 28HR1967 C.C5785
1341 A 3 19AP1967 C.OC976
1344 C 3 25AP1967 C.OC662
1347 E 2 23AP1961 C.C1301
1372 C 5 5MY1967 C.C2128
1375 E 3 7MYIS67 C.01203
1410 A 6 24NY1967 C. 00564
1414 E 2 26MY1967 C.CC336
1433 C 3 17JN1967 C. 01292
1436 E 2 15JM967 C.CC724
1450 C 5 16JL1967 0.01333
1453 E 3 15JL1967 C.CC506
1505 A 4 28AU1967 C. 39678
1509 C 5 2SE1967 1.32734
1512 E 3 1SE1967 1.0C518
1533 A 4 19SE1967 C. 03249
1536 E 2 24SE1967 C. 14452
1539 C 1 40C1967 C.3170C
1542 E 3 110C1967 6.4C765
1380 GS 4 9MY1967 C. 01513
1383 GS 7 10MY1961 C.01C69
1386 GS10 12WY1967 C.CC575
1389 GS13 12MY1967 C. 01031
1392 CS16 12MY1967 C. 02157
1395 CS19 13HY1967 C.CC470
1555 CS 2 30C1967 C. 92867
1558 GS 5 4CC1967 3.32963
1561 CS 9 4QC1967 1.17391
1567 CS15 5CC1967 C. 13972
1570 CS18 50C1967 C. 14875
1574 CS22 6CC1967 0.02589
1547 fS 20C1967 0.03194
1520 ~~HJ 18SE196T G. 02357
1523 RA 19SE1967 C. 04613
1528 SB 20SE1967 C. 02888
1531 GH 25SE1967 C.OC845
1549 HO 1 40C1967 1.12674
1550 fR 1 50C1967 0.21063
1417 HO 2 22MY1S67 C. 01122
1401 PQ 2 6MY1967 C.CC588
1429 kL 2 29MY1967 C.0106Z
1405 ES 2 12MY1567 C.C516C
( 1420 IH 2 23CY1967 C. 01511
( 1423 NA 2 25^Y1967 C.CC856
^
41
-------
Cyolotella ooellata Pant.
Cyclotella ooellata Pantocsek, Res. Wiss. Erforsh. Balatonsees, Sec. I.,
p. 104, fig. 318. 1902.
Cells cylindrical, surface of the valves flat or only slightly concave.
Cells always occur singly. Specimens from Lake Michigan 6-22y in diameter.
Marginal zone narrow, less than one-half the radius of the valve. Radial
striae in the marginal zone irregular in length, without visible substruc-
ture, about 14-16 in lOp at the margin of the valve. Ornamentation of the
marginal zone other than the striae is lacking in this species. Two types
of structure are present in the central area. Several distinct puncta,
either randomly or radially arranged, are present in most specimens. The
most distinctive characteristic of this species is the presence of several
large (about ly diameter) circular silicious structures. In valve view
these appear as thickenings on the valve surface. In girdle view they
appear as fungiform papillae. These structures, like the puncta, may be
randomly arranged or, more usually, radially disposed.
Although previous reports indicate that this species reaches its
greatest abundance in littoral habitats, it is apparently also adapted to
euplanktonic growth as it is quite common in offshore collections from the
Great Lakes. It reaches its greatest abundance in Lake Huron but is also
found in abundance in Lake Superior and in some collections from northern
Lake Michigan. The morphology of this taxon is very similar to the C.
'kuetzing'Lana complex, but the presence of the fungiform papillae makes
their separation relatively easy.
127 CYOCELIA TCT HO CF STATICNS 270
(6C973 CH 1876 0.4C151
( 3507 CH 19FE1881 0.16980
146917 CH 12JA1S46 0.01275
(4692* CH 10KY1946 0.01411
146905 CH JA1947 0.01961
(46906 CH ^Y1947 0.21570
(46922 CH 21AL1S47 0.56703
(46743 EV 20JN1937 0.01713
146757 EV 25JL1937 0.18295
(46765 EV 30AU1937 0.02231
(46744 EV 60C1S37 0.01463
(46762 EV 18MR1938 0.04411
(46759 EV 19MY1938 0.01688
( 1227 C' 2 13MY1964 0.00219
1 1230 E 2 16MY1964 0.00889
( 1234 B 3 18JN1964 0.00562
1 1238 D 3 11JN1964 0.01600
( 1241 E 2 13JN1964 0.00739
1 1P44 f 1 11JN1964 O.OC877
( 1247 B 3 14JL1964 0.01707
1 1441 B 6 24JL1964 0.09251
J 1251 C 7 16JL1964 0.01159
| 1?S4 n 2 15JL1-364 0.12067
1 1257 E 3 14JL1964 0.07656
1 1260 F 3 6JL1964 0.07831
( 1443 B 6 16AU1964 0.01186
J^ 1J65 C' 2 10AU1964 0.09389
( 1268 E 2 15AU1964 0.38297
I 1444 B 6 19SE1964 0.00606
1 1275 0 2 17SE1964 0.01290
• 1279 t 1 16SE1964 0.00393
( 1282 E 4 16SE1964 0.01108
( 1J7S5 F 1 15SE1964 0.11648
( J289 C 7 140C1964 0.00440
1 1294 D 3 150C1964 0.04615
( 1297 D 6 14CC1S64 0.00571
( 1300 E 3 13CC1964 0.02148
( 1303 E 6 130C1964 0.04478
( 1306 F 3 110C1964 O.OC832
( 13H D 1 8N01964 0.00516
1 1314 D 4 9NC1964 0.00287
I 3540 CH 11MY1879 0.23296
(46510 CH OC1945 C. 00109
146915 CH 20FE1S46 0.02845
(46923 CH 22NO-1946 0.00437
146SC9 CH MR1947 0.00455
(46919 CH 5JN1947 0.05463
146758 EV 5JN1937 0.01426
(46745 EV 3JL1937 C. 02090
(46747 EV 1AU1937 C. 02723
46752 EV 15SE1937 0.02177
(46748 EV 130C1937 0.02135
(44751 EV 30MR1938 0.03350
(46761 EV 27MY1938 C.C1C90
1228 0 2 14NY1964 0.00584
1231 E 3 16MY1S64 C. 01223
1439 B 6 5JN1964 C.C0400
1239 0 4 11JN1964 0.00116
1242 E 3 13JN1964 0.00599
1245 F 2 HJN1964 C. 01037
1248 B 3 24JL1964 0.00591
1249 C 3 8JL1964 0.00272
1252 C1 1 16JL1964 0.00279
1255 D 5 15JL1964 P-3
-------
( 1317 E 1 6N01964 0.00766 )
. ..J.JL120_ E 4 7NQ1564 0.01723
( 1323 F 1 6N01964 O.OC697
.1 1337 O 2MR1S67 0.01029
( 1340 C 7 28^R1967 0.02327
1 1343 A 6 19AP1967 O.OOC6S
1 1346 C 7 21AP1967 0.02804
( 1368 A 3 4MY1967 C.CC943
1 1371 C 3 4MY1967 0.00692
( 1374 E 2 7MY1967 0.01793
( 1409 A 4 23MY1967 0.00595
( 1412 C 5 31MY1967 0.00421
1 1415 E 3 28MY1S67 0.00225
1 1432 A 4 13JN1967 0.01788
( 1435 C 7 13JN1967 0.02210
1 1418 E 5 14JM967 C. 01089
I 1446 A 6 10JL1967 0.00354
1 1451 C 7 16JL1967 0.00394
[ 1454 E 5 15JL1967 0.09202
( 1508 C 3 2SE1S67 0.00400
( 1511 E Z 1SE1967 2.57851
I 1532 A 3 1BSE1967 0.00966
( 1537 E 3 24SE1S67 1.50953
1 1541 E 2 110C1967 0.28205
< 1378 GS 2 9MY1967 0.00421
I 1381 GS 5 10HY1967 0.01431
( 1384 GS 8 10CY1S47 O.C8319
1 Hfl7 GS11 12MY1S67 0.07129
{ 1390 GS14 12MY1S67 0.04110
1 1393 GS17 13HY1967 0.12601
I 1398 GS22 14HY1967 0.02125
1 1556 GS 3 3CC1967 0.23987
I 1559 GS 7 4QCIS67 0.32874
1 1562 GS10 5CC1967 0.15789
I 1565 GS13 50C1967 C. 00507
1 1568 GS16 50C1967 0.00433
{ 1573 GS21 60C1967 0.00112
1 1544 MU 1 20C1967 0.00238
( 1521 SH 1 18SE1967 0.00577
1 1528 SB I 2CSE1967 0.04332
1 1531 GH 1 25SE1967 0.00845
1 1549 MO 1 40C1967 0.04111
1 1553 SG 1 60C1967 0.05141
< 1417 HO 2 22MY1S67 0.01495
t 1401 MO 2 6MY1967 0.02352
1 1352 KW 2 21AP1967 0.02577
( 1403 CA 2 1CMY1967 0.10462
I 1349 CI 2 1SAP1967 O.OC359
I 1423 WA 2 25MY1967 0.02141 )
1310 t i ritLlSb4 U.UIU?**
1321 E 5 7N01964 0.02235
1324 f 2 6N01964 0.00699
1338 C 3 2BHR1967 O.C4496
1341 A 3 19AP1967 0.02170
1344 C 3 25AP1967 C. 00496
1347 E 2 23AP1967 C. 02439
1369 A 4 4KY1967 0.01118
1372 C 5 5MY1967 C. 01064
1375 E 3 7MY1567 C. 08181
1«10 A 6 24MY1S67 C. 01128
1413 C 7 25MY1967 0.00948
1416 E 5 28HY1967 0.00656
T433 C 3 17JN1967 0.08397 )
1436 E 2 15JN1967 0.03257 )
1446 A 3 11JL1967 0.10273 1
1449 C 3 ltJLlS67 C. 16050 )
1452 E 2 14JL1967 0.03193 )
1504 A 3 28AUIS61 C. 00741
1509 C 5 2SE1967 0.70657
1512 E 3 1SE1967 C. 27485
1533 A 4 19SE1967 C. 03714
1538 E 5 23SE1S67 C. 09391
1542 E 3 110C1967 3.38181
1379 GS 3 9MY1967 0.05571
1382 GS 6 10MY1967 0.09714
1385 GS 9 10MY1967 0.00471
1388 GS12 12MY1967 0.04223
1391 GS15 12MY1967 0.06225
1394 GS18 13MY1967 C. 03096
1554 GS 1 30C1967 0.08895
1557 GS 4 30C1967 0.36248
156C GS 8 40C1967 C. 41562
1563 GS11 50C1967 C. 01169
1566 GS14 5GC1967 0.00183
1569 GS17 50C1967 0.02676
1574 GS22 6QC1967 0.00575
1547 US 1 2CC1967 0.01597
1526 MO 1 20SE1967 0.01707
1529 KW 1 20SE1967 0.02398
1545 t.L 1 20C1967 0.10136
1551 ES 1 5CC1967 C. 19171
1351 MI 2 21AP1967 0.01241
1425 RA 2 25PY1967 0.02652
1402 TR 2 6MY1967 0.02707
1354 GH 2 25AP1967 0.00173
1404 MC 2 10MY1967 0.03811
1420 IH 2 23MY1967 0.01511
1424 KN 2 25HY1967 0.01332
1319 E 3 7N01964 C. 22255
1322 E 6 7N01964 C.CC667
1336 C 3 27JA1967 O.CC193
1339 C 5 28MR1967 C.C2806
1342 A 4 19AP1967 C. 05233
1345 C 5 25AP1967 C. 07407
1348 E 5 23AP1967 C.OC548
1370 A 6 3PY1967 C.CC921
1373 C 7 5MY1967 C.1S255
1376 E 5 6HY1967 C.C4779
1411 C 3 31MY1967 C.C1231
1414 E 2 28HY1967 C.CC672
1431 A 3 12JN1967 C.C1802
1434 C 5 17JN1967 C.C2393
1437 1 3 15JM967 C. 00269
1447 A 4 11JL1967 C.C1871
1450 C 5 16JL1967 C. 19804
1453 E 3 15JL1967 C. 13902
1505 A 4 28AU1967 C. 01031
1510 C 7 29AU1967 C. 02845
1513 E 5 31AU1961 C.6C302
1536 E 2 24SE1967 C. 22632
1540 C 5 40C1S67 C. 26307
1543 E 5 100C1967 C. 10056
1380 6S 4 9MY1967 C. 01513
13B3 €S 7 10MY1967 0.04544
1386 GS1C 12MY1967 C. 11204
1389 GS13 12MY1967 C. 01547
1392 GS16 12PY1967 C.C4623
1395 C-S19 13MY1967 C.OC822
1555 GS 2 30C1967 0.44845
1558 GS 5 4QC1967 0.30918
1561 GS 9 40C1S67 C.1C565
1564 GS12 50C1967 C. 00165
1567 GS15 50C1967 C.C3969
1570 GS18 5CC1967 C.C8925
1575 GS28 6GC1967 C. 00129
1520 HO 1 1GSE1967 C. 00471
1527 TR 1 20SE1967 0.00629
1530 fK 1 24SE1567 C.C3000
1548 CA 1 3QC1967 C. 02544
1550 CR 1 50C1967 C.08673
1427 IU 2 29MY1967 0.13317
1399 PH 2 5KY1967 C. 04761
14CO SB 2 6PY1967 C. 02383
1429 DL 2 29MY1961 C. 01062
1405 ES 2 12MY1967 C. 03870
1421 CH 2 23MY1967 C.C6940
)
-
1430 »C 2 12JN1967 C. 02467 )
Cyolotella operoulata (Agardh.) KUtz.
operculata Agardh, Bbt. Zeitschr., 1827:627. 1827,
operculata (Agardh) Klltzing, Syn. Diat., p. 7. 1834,
Cells cylindrical with slightly excentrically undulate valves, uens
always occur singly. Specimens from Lake Michigan 8-32jj in diameter.. Or-
namentation of the marginal zone consists of narrow striae chambers separated
bjr very poorly developed radial costae. Near the margin of the valve the
striae chambers open to the interior of the frustule by a series of foramina
—that appear as a series of bright or dark spots under the light microscope,
depending on the level of focus. Striae 15-18 in 10p near the margin of the
valve. The external surface of the striae chambers has a double row of very
fine punctae. These are very difficult to resolve and can be seen only with
ideal specimens and the best optical equipment. The central area in this
species is without visible ornamentation and is usually slightly excentric.
In some specimens one or more shortened striae of peculiar structure occur
at the margin of the valve.
-------
This species apparently belongs to the complex of described entities
with affinities to C. striata. It in some respect resembles C. michi-goniana
but is easily differentiated from that taxon by the lack of ornamentation of
the central area and its only slightly undulate valves. This species occur-
rence in Lake Michigan is highly irregular and only occasional collections
have it in abundance. It appears that its primary habitat may be in the
phytobenthos and that it is only opportunistically planktonic. It is also
found in some inland lakes in Michigan. Specimens from these habitats tend
to be larger in average size and to have more robust structure than those from
Lake Michigan.
128 CYPLAM 1 40C1967 0.93189
1428 MU 2 29MY1967 0.00301
1350 BH 2 19AP1967 0.00661
1352 KW 2 21AP1967 0.00859
[ 1405 ES 2 12MY1967 0.04515
1422 GA 2 23MY1967 0.00511
46S21 CH 23NG1945 C. 01293
46S14 CH 19AP1946 0.00320
46S20 CH 200E1946 0.00555
1228 D 2 14NY1964 0.00389
1231 E 3 16MY1964 0.00489
1235 c 7 16JN1964 0.00282
1238 D 3 11JN1964 0.00200
1245 f 2 11JN1964 0.06224
1258 F 1 6JL1964 0.01180
1442 B 6 2AU1964 0.00341
1266 D 3 18AU1964 1.22773
1J69 E 3 15AU1964 0.57556
1273 C' 2 10SE1964 0.30647
1276 0 3 18SE1964 C. 08941
1279 E 1 16SE1964 0.65968
1282 E 4 16SE1964 2.32687
1285 F 1 15SE1964 4.89197
1288 B 3 150C1964 C. 01306
1291 C1 2 160C1964 C. 01957
1294 D 3 150C1964 0.46148
1297 D 6 140C1964 C. 02666
1300 E 3 130C1964 1.0B824
1303 E 6 130C1964 1.08026
13C6 F 3 110C1964 2.23128
1309 C' 1 10N01964 O.C2412
1312 D 2 8N01964 0.02483
1315 D 5 9NQ1964 C.C1820
1318 £ 2 7N01964 0.17313
1321 E 5 7N01964 C.5363C
1324 F 2 6N01964 0.42392
1338 C 3 28MR1967 0.00264
1341 A 3 19AP1967 0.00108
1369 A 4 4HYIS67 0.00373
1375 E 3 7MY1967 0.00481
1449 C 3 16JL1967 C. 00382
1536 E 2 24SE1967 0.00545
1541 E 2 110C1967 0.00532
1379 GS 3 9MY1967 C. 00928
1382 GS 6 10MY1967 0.03053
1385 GS 9 10MY1967 C. 00706
1388 GS12 12MY1967 0.02413
1391 GS15 12CY1967 C. 01915
1394 GS18 13HY1967 0.01204
1554 GS 1 30C1967 C. 02491
1557 GS 4 30C1967 1.70030
1560 GS 8 40G1967 1.98366
1563 GS11 5QC1967 0.16368
l'f,t GS14 5QC1967 C. 77050
1569 GS17 5QC1967 0.13973
1573 GS21 6QC1967 C. 00112
1522 BH 1 18SE1967 C. 00365
1551 ES 1 50C1967 C. 17573
1426 MS 2 29MY1967 C. 01050
1399 PH 2 5HY1967 O.CC680
1403 CA 2 10MY1967 0.23539
1407 SN 2 14PY1967 0.01791
1423 MA 2 25HY1967 0.00428
(46917 CH 12JA194t C.C1275
(46924 CH 10MY1946 0.00141
1229 D 5 14MY1964 C.CI057
1439 B 6 5JM964 C.CC40C
1240 D 6 10JN1964 C.OC307
1246 F 3 11JN1964 C.C5379
1259 F 2 6JL1964 C. 04028
1264 C1 1 10AU1S64 C.CC579
1267 0 6 18AU1964 0.00649
1270 F 1 10AU1964 C. 14159
1274 D I 17SE1964 0.32844
1277 D 4 16SE1964 C. 05577
1280 E 2 16SE1964 C. 95309
1283 E 5 16SE1964 3.43263
1286 F 2 15SE1964 2.66170
1289 C 7 140C1S64 C. 01759
1292 D 1 150C1964 0.07454
1295 D 4 150C1964 C. 83244
1298 E 1 120C1964 C. 13195
1301 E 4 13OC1964 4.63658
1304 F 1 110C1964 1.72874
1307 B 6 N01964 0.01443
1310 C' 2 10N01964 C.C2041
1313 D 3 9NQ1964 C.C9459
1316 C 6 9NC1964 C. 05289
1319 E 3 7N01964 C. 51640
1322 E 6 7MG1S64 C. 58320
1325 F 3 6N01S64 C. 61714
1339 C 5 2EHR1967 C. 00624
1345 C 5 25AP1967 C.OC195
1373 C 7 5MY1967 C. 00285
1410 A 6 24MY1967 C.CC564
1504 A 3 28AU1967 0.04444
1537 E 3 24SE1967 C. 03019
1542 E 3 110C1967 C. 35598
1380 GS 4 9MY1967 C. 10762
1383 GS 7 10HY1967 C. 04544
1386 GS10 12HY1967 C. 01724
1389 GS13 12HY1967 C. 01805
1392 GS16 12MY1967 C. 04623
1395 GS19 13HY1967 C. 00587
1555 GS 2 3CC1967 C. 36469
155B 6S 5 40C1967 1.80355
1561 6S 9 40C1967 0.59B70
1564 GS12 50C1967 C. 25512
1567 ES15 5GC196I C.^1754
1570 GS18 50C1967 C.C6942
1574 GS22 60C1967 C.C1438
1548 CA 1 'OC1967 0.86503
1553 SG 1 -1967 C. 01469
1418 SH 2 "> C.C1555
1402 T» 2 - 10541
1404 HO 2 j«*!VO_
1420 1H 2 23WY1967 0. .jil
)' —
Cyolotella pseudostelligera Hust.
pseudostelsligera Hustedt in\ Huber-Pestalozzi, Binnengew
16(2) :397, fig. 485. 1942.
Cells cylindrical with slightly concentrically undulate valves. Speci-
mens from Lake Michigan 5-9p in diameter. Cells always occur singly. Mar-
ginal zone narrow, usually less than one-half the radius of the valve. Orna-
mentation of the marginal zone consists of fine radial striae, without visible
substructure, about 18 in lOy at the margin of the valve and ajnarginal co-
44
-------
rona of short, stout spines with somewhat expanded bases. The central area
of the valve is ornamented with a stellate group of short striae radiating
around a central puncta. In occasional specimens the ornamentation of the
central area is poorly developed or lacking. In most specimens a distinct,
structureless, hyaline space separates the two areas of ornamentation on the
valve surface.
With the exception of the marginal spines, the morphologic characteris-
tics of this species are quite similar to C. stelligera. The structures of
the frustule of C. pseudostelligera are somewhat finer and its distribution
tends to be more restricted than C. stetli-gera. It is abundant only in eu-
trophied inshore waters and in estuaries of the main lake.
129 CYPSTELL TCI NO OF STATICNS 156
(
I
(
(
(
(
46915 CH 20FE1946 0.01707
46905 CH JA1947 0.00123
46913 CH 6AU1947 C. 01046
46764 EV 17JL1937 0.06446
46763 EV 23AU1937 C. 02029
46744 EV 60C1937 0. 00488
46756 EV 27APIS38 0.00504
1439 B 6 5JN1964 0.01399
1250 C 6 10JL1964 0.00411
1255 D 5 1-5JL1964 0.01540
1258 F I 6JL1964 O.C1180
144? B 6 2AU1964 0.00682
1265 C1 2 10AU1964 0.01118
1268 E 2 15AU1964 0.21064
1273 C' 2 10SE1964 0.02688
1278 D 6 18SE1964 0.00384
1281 E 3 16SE1964 0.02355
1284 E 6 17SE1S64 0..00318
1268 B 3 150C1964 0.00435
1291 C1 2 160C1964 0.00489
12S5 D 4 15QC1964 0.02973
1298 E 1 120C1Q64 0.01346
1301 E 4 13CC1964 0.06182
1305 F 2 110C1964 0.01380
1308 C 7 6N01S64 0.00912
1311 D 1 8N01964 0.00774
1314 0 4 SN01564 0.01148
1317 E 1 6N01964 0.01340
1320 E 4 7N01S64 0.15305
1323 F 1 6NtH<364 0.01115
1336 C 3 27JA1967 0.00385
1340 C 7 28MR1967 0.01018
1343 A 6 19AP1967 0.00069
1147 f 2 23AP1967 0.00813
1408 A 3 23KY196J 0.00447
1446 A 3 11JL1967 0.00489
1450 C 5 16JL1567 0.29135
1453 E 3 15JU967 0.01517
1509 C 5 2SE1S67 0.00505
1513 E 5 31AU1967 0.00507
1534 A 6 19SE1967 0.00310
1540 C 5 4DC1S67 0.00993
1543 E 5 100C1967 0.02873
1394 GS18 13WY1967 0.00172
1561 GS 9 40C1'567 0.00587
1544 Nil 1 20C1967 0.00715
1522 BH I 18SE1967 0.11670
1529 KU I 2CSE1967 0.02398
1551 ES 1 5QC1967 0.00799
1428 MU 2 29MY1967 0.01507
1417 HO 2 22MY1967 0.71781
1352 KM 2 21AP1967 0.02577
46S23 Ch 22M01946 0.01093
46906 CH HY1947 0.01394
46922 CH 21AU1947 C. 47253
46757 EV 25JL1937 0.29849
46765 EV 30AU1S37 0.13943
46767 EV 270C1937 0.00774
46759 EV 19MY1938 0.00675
1440 B 6 11JL1964 0.03317
1252 C' 1 16JL1964 0.00279
1256 E 2 14JL1964 0.00183
1259 F 2 6JL1964 0.00310
1443 B 6 16AU1964 0.00395
1266 D 3 18AU1964 1.47327
1269 E 3 15AU1964 C. 04933
1275 0 2 17SE1964 0.02580
1279 E 1 16SE1964 0.00785
1282 E 4 16SE1S64 0.02216
1285 F 1 15SE1964 0.08153
1445 B 6 14GC1S64 0.00652
1292 0 1 150C1964 C. 00745
1296 C 5 14CC1964 C. 01180
1299 E 2 120C1964 0.02199
1302 E 5 13CC1S64 0.00810
1306 F 3 HOC1964 0.01386
1309 C- 1 10N01964 0.01126
1312 C 2 8N01964 0.02483
1315 D 5 9NQ1964 0.01365
1318 E 2 7ND1964 C. 02663
1321 E 5 7NQ1964 0.04469
1324 F 2 6N01964 C. 01398
1337 C 3 2WR1967 0.00588
1341 A 3 19AP1967 0.00542
1345 C 5 25AP1967 0.00195
1348 E 5 23AP1967 0.01234
1416 E 5 28MY1967 C. 01093
1447 A 4 11JL1967 0.00936
1451 C 7 16JL1967 0.00591
1454 E 5 15JU967 C. 01000
1511 E 2 1SE1967 C. 04604
1532 A 3 18SE1967 0.00657
1536 E 2 24SE1S67 0.01363
1541 E 2 11DC1967 0.06918
1380 GS 4 9PY1967 0.00168
1555 GS 2 30C1967 C. 01059
1562 GS10 5EC1967 0.00247
1547 MS 1 20C1967 0.00798
1523 RA 1 19SE1967 0.13838
1545 kl 1 20C1967 C. 02027
1552 SM 1 60C1967 0.00660
1426 MS 2 29KY1967 0.02100
1350 3H 2 19AP1967 0.25770
1403 CA 2 10KY1967 0.03923
46920 CH 20DE1946 C.OC031 )
46907 CH JL1947 C. 00247 )
46771 EV 11JN1937 C.OC238
46747 EV 1AU1937 C. 01238
46760 EV 22SE1937 C. 02462
46768 EV 16MR1936 O.C1470
46761 EV 27MY1938 C.OC545
1441 B 6 24JL1964 0.01542
1254 D 2 15JL1964 C. 00383
1257 E 3 14JL1964 0.00479
1262 B 3 17AU1S64 C.CC210
1264 C* 1 10AU1964 O.OC193
1267 D 6 18AU1964 C.CC432
1270 F 1 10AU1964 0.0/178
1277 D 4 18SE1964 C. 01859
1280 E 2 16SE1564 O.OC681
1283 E 5 16SE1964 O.CC613
1287 F 3 15SE1964 C. 03002
1289 C 7 140C1964 C.C1319
1293 D 2 150C1964 C. 01415
1297 D 6 140C1964 O.CC381
1300 t 3 130C1964 C. 05012
1304 F 1 110C1964 0.00741
1307 B 6 N01964 O.C0722
1310 C1 2 10NG1964 C.C2041
1313 0 3 9N01964 0.02703
1316 C 6 9N01964 C.C1B69
1319 E 3 7N01964 O.CB117
1322 E 6 7N01964 C.C1000
1325 F 3 6NC1S64 C. 00252
1338 C 3 28MR1967 C.CC926
1342 A 4 1?AP1?67 C.OC902
1346 C 7 21AP1967 C. 22432
1374 E 2 7M»1'!67 C.OC299
1437 E 3 15JN1967 C.CC269
1449 C 3 16JL1967 C. 11082
1452 E 2 14JU967 C.C7664
1508 C 3 2SE1967 0.00400
1512 t 3 1SE1961 C.C1571
1533 A 4 19SE1967 0. 00928
1538 E 5 23SE1967 C. 01105
1542 E 3 110C1967 C. 04068
1384 GS 8 10MY1967 C.C0185
1557 GS 4 30C1967 C.C0374
1573 CS21 60C1967 C.CC112
1521 SH 1 18SE1967 C. 00577 ~
1526 HO 1 20SE1967 O.OC569
1549 )>0 1 40C1561 C. 06852
1550 CR 1 50C1967 0.44604
1351 M 2 21AP1967 0.02483
1400 SB 2 6HY1967 C. 20848
1349 CI 2 19AP1967 0.00359
Cyelotella stelligera CCleve and Grun.) y. BL.
Cyclotella meneghin-uzna var.? stelligeva Cler^^e and Grun.> Kongl. Sven.
Vet.-Akad. Handl., 18C5]:22, pi. 5, fig. 63. 1881.
Cyelotella stelligeva- CCleve and Grun.) V. H., Syn. Diat. Belgique, pi.
94, fig. 22-27. 1882.
45
-------
Cells cylindrical with slightly concentrically undulate valves. Cells
always occur singly. Specimens from Lake Michigan 3-24y in diameter. Mar-
ginal zone narrow, only about one-fourth the radius of the valve. Ornamen-
tation of the marginal zone composed of striae without visible substructure.
Striae quite coarse, about 11-14 in lOy, all of approximately equal length.
Other structures, such as ribs, chambers, or slime pores are lacking.
namentation of the central area is quite variable. Usually a single large
puncta is present in the center of the valve. A number of irregular ribs
radiate around the center giving a stellate central structure. Smaller,
isolated puncta or thickenings may occur between the major structures, in
the smaller cells this entire central ornamentation is reduced to a stellate
cluster of dots. In some specimens the entire central area is covered by
very fine puncta which may be either radially or randomly distributed.
130 CYSTEIL1 ICT NO OF STATIONS
1
_J
46910 CH OC1945 0.02294 )
46917 CH 12JA1946 0.00582
46924 CH 10MY1946 0.00564
46916 CH 4MY1947 0.00238
46907 CH JL1947 O.Q0296
46764 EV 17JL1937 0.02417
46763 EV 23AU1937 0.71023
46752 EV 15SE1937 0.10884
46744 EV 60C1937 0.1C73C
46768 EV L6KR1938 0.04410
46759 EV 19KY1938 O.OC338
1228 D 2 14MY1964 0.00779
1232 E 5 16HY1964 0.00174
1250 C 6 10JL1964 0.00822
1257 f. 3 14JL1964 O.OC957
1265 C1 2 10AU1964 0.00224
1273 C- 2 1CSE1964 0.01613
1279 E 1 16SE1964 0.01571
1287 f 3 1'5SE1964 0.02502
1339 C 5 28MR1967 0.00312
1343 A 6 19AP1967 0.00139
1347 E 2 23AP1967 0.00325
1374 E 2 7MY1967 0.00598
1433 C 3 17JN1967 0.00646
1449 C 3 16JL1967 0.00764
1452 E 2 14JL1967 0.01490
1504 A 3 28AU1967 O.OC247
1512 E 3 1SE1967 0.01178
1533 A 4 19SE1967 0.00464
1383 GS 7 IOHY1967 O.OC267
1556 GS 3 30C1967 0.01564
1560 GS 8 40C1967 0.00472
1571 GS19 60C1967 0.00059
1546 LU 1 20C1967 0.01000
1550 KR I 50C1967 0.06195
< 1400 SB 2 6HY1967 0.01191
1 1404 MO 2 10MY1967 0.01270
1 1423 HA 2 25MY1967 0.00428
3541 CH
46921 CH 23N01945 0.01229
46S15 CH 20FE1946 0.15364
46523 CH 22N01946 0.06775
46909 CH MR1947 0.072,86
46SC6 CH MY1947 0.04779
46922 CH 21AU1947 8.91503
46757 EV 25JL1937 0.08184
46765 EV 30AU1937 0.68600
46760 EV 22SE1937 0.03939
46767 EV 270C1937 0.01160
46762 EV 18MR1938 C. 22056
46761 EV 27MY1938 0.00818
1229 D 5 14HY1964 0.00423
1236 C' 1 8JN1964 0.00175
1255 C 5 15JL1964 0.00513
125B F 1 6JL1964 0.00236
1444 B 6 19SE1964 0.02122
1275 D 2 17SE1964 0.01290
1280 E 2 16SE1964 , 0.00681
1445 B 6 140C1964 0.00326
1340 C 7 28KR1967 0.00145
1344 C 3 25AP1967 0.00331
1348 E 5 23AP1967 0.00685
1376 E 5 6HY1967 0.00281
1446 A 3 11JL1967 0.00245
145C C 5 16JL1967 0.00190
1453 E 3 15JL1967 0.01264
1509 C 5 2SE1967 C. 00505
1513 E 5 31AU1967 0.00507
1539 C 3 40C1967 0.01510
1554 GS 1 30C1967 0.00712
1558 GS 5 40C1967 C. 00396
1562 GS10 50C1967 0.00740
1574 GS22 60C1967 0.00575
1527 IR 1 20SE1967 0.01258
1351 HI 2 21AP1967 0.02793
1352 KU 2 21AP1961 0.06013
1405 ES 2 12MY1967 0.00645
'
19FE1881 0.01132 )
46908 CH DE1945 C.040Z8 I
46914 CH 19AP1946 C. 01815
46912 CH AP1947 C. 01150
46919 CH 5JN1947 C. 12291
46758 EV 5JN1937 C. 01070
46747 EV 1AU1937 C. 21784
4676S EV 7SE1937 C. 06513
46750 EV 24SE1937 C. 06127
46749 EV 12MR1938 C. 07282
46756 EV 27AP1938 C.OC336
1226 C 7 16MY1964 C.CC3S1
1231 E 3 16MV1S64 C.C1223
1237 C1 2 8JN1S64 0.00258
1256 E 2 14JL1964 C.CC183
1260 F 3 6JL1964 C.CC955
1272 C' I 10SE1964 0.05336
1276 C 3 18SE1964 C.CI116
1286 F 2 15SE1964 0.02189
1338 C 3 28HR1967 C.OC529
1342 A 4 19AP1947 0.00361
1346 C 7 21AP1967 C. 00668 )
1373 C 7 5MY1967 C.OC285 1
1408 A 3 23MY1961 C. 00447 )
1447 A 4 1U11967 C. 01170 )
1451 C 7 16JL1967 C.CC591
1454 E 5 15JL1967 C. 00400
1511 E 2 1SE1967 O.C1S35
1532 A 3 18SE1967 C.C0986
1541 E 2 11QC1967 C. 01064
1382 GS 6 10HV1967 C.OC278
1555 GS 2 30C1967 C.CC353
1559 GS 7 40C1967 C. 01049
1570 CS18 50C1967 C.CC992
1524 M 1 20SE1967 0. 02189
1545 ML 1 20C1967 O.OC676
1399 PM 2 5MY19«7 C.C1360
1403 CA 2 10HY1967 0. 03923 )
1349 CI 2 19AP1967 C. 00718 )
Cyolotella tempered M. Per. and Hgrib.
Cyclotella temperei M. Peragallo and Hgribaud in: HSribaud, Foss. Mat.
Auvergne, Vol. I, p. 35, pi. 8, fig. 23. 1902.
Cells cylindrical, surface of the valves flat or only slightly concave.
Cells occur singly. Specimens from Lake Michigan 8-12]a in diameter. Mar-
ginal zone of the valves very broad about three-fourths the diameter of the
valve. Ornamentation of the marginal zone consists of anastomosing striae
of varying length, somewhat sinuous and without visible substructure. The
longest of the striae are of equal length, forming an even border to*the
central area. A series of marginal spines are present. Striae 14-18 in lOu
at the margin of the valve. Spines widely but regularly spaced about 4 in
lOy. The central area is small and circular. Its only ornamentation is a
rosette of quite small but conspicuous puncta surrounding the center of the
valve.
46
-------
Specimens of this species are very rare in collections from Lake Michi-
gan. It was originally described from fossil material and it is entirely
possible that the specimens we have observed are not of recent origin. It
is also possible that this species belongs to the group of "pleistocene
relicts" that survive in benthic communities in relatively deep water in
the upper Great Lakes. The only other taxon found in Lake Michigan that
resembles C. temperei in morphology is C. wolteveoki Hust. Although
Hustedt (1942) points this out in his discussion of C. woltereoki, he does
not alude to Cladogramma eebuense Grun., which, although larger and more
coarsely structured, is remarkably similar to the two entities discussed
above in structure and which, like C. woltereeki, was described from the
western Pacific Islands.
132 CYTEEPER TCT NO OF STATIONS^
< 1544 - HJLl _ 20C19&7 0.00236 1 I 152? BH I _ 18SE1967 1.60*64 I ( 1550 _ CR 1 __ 50C19&7 0.39646 I _
I 1350 BH 2 19AP1967 1.23345 I ( 1400 SB 2 6MY1967 0.00596 ) ( 1353 FR 2 23AP1967 C. 01055 )
< 1422 _ GA 2 _ 23MY1967 Q. 00511 1 I _
Cyolotella wolteveek-L Hust.
Cyelotella woltevecki, Hustedt, Internat. Rev. Hydrobiol., 42;16, text fig.
11-13. 1942.
Cells cylindrical with slightly concentrically undulate valves, usually
sunken in the center. Cells occur singly. Specimens from Lake Michigan 4-9]a
in diameter. The main visible ornamentation on the valve surface is a series
of radiate striae of varying lengths and without visible substructure. The
longest of these striae reach nearly to the center of the valve so that the
central area is reduced to a small, circular area only l-2y in diameter.
This area usually contains a single, large puncta. The striae are fine, about
22 in lOy at the margin of the valve, and somewhat difficult to resolve to
the thinness of the valve and to their highly irregular length. A series of
more or less well developed spines, with thickened and expanded bases, are
usually visible at the margin of the valves. The spines are randomly arranged
and appear to have no special orientation to the striae or to one another.
This species, like C. atomus Hust., was originally described from the
tropics. Although this distribution is quite unusual, the forms from Lake
Michigan appear to be morphologically identical with the specimens described
and figured by Hustedt (1. c.). Indeed the morphology of this taxon is al-
most unique. The only species that resembles it in general structure of the
valve and arrangement of ornamentation is C. tempere-i^ which, according to
published descriptions and illustrations, is a considerably larger and more
coarsely structured form.
133 CYHOLTER TCT KC CF STATIONS __ 4 --
I 12A3 E 6 13JM964 0.00418 1 ( 1446 A 3 11JL1967 0^00245 ) ( 1557 G5 4 30C1967 C.OC374 1
I 1550 MR 1 50C1967 0.01239 I t
Species -incertae sedis
Cyclotella sp. #1.
~134CYSPECOA TCT NC GF STATIONS 1
( 1245 f~2 11JN1964 O.OC692
47
-------
Cyolotella sp. #2.
135 CVSPECOB TCI NO OF STATIONS
(
(
_L
1284 E 6
1321 E 5
1324 F 2
-1-541— ___E_2__
17SE1964
7N01964
6N01964
110C1967
0.00953 )
0.00638 )
0.01165 )
0.01597 I
( 1285 F 1
1 1322 t 6
( 1325 F 3
1
15SE1964
7NG1S64
6N01564
C. 01165 )
0.01666 )
0.00504 1
( 1320
( 1323
( 1536
E
F
E
4
1
2
7N01964
6N01964
24SE1967
C.CC827 )
C. 00279 )
C.OC273 !
Cyclotella sp. (aff. C. stviata var. bipunetata Fricke).
Oil CYSTRIVB TCT NO OF STATIONS
10JN1964 0-009JO
13JN1964 0.00209 ) ( 1504
A 3
28AU1961 C.OC247
48
-------
Genus Cymatopleura Wm. Smith
Wm. Smith, Annals Mag. Nat. Hist., 7(2):13. 1851.
Freshwater members of the genus Cymatopleura find their primary habi-
tat in epipelic communities. They are, however, also successful faculta-
tive planktonts and occur in low to moderate numbers in plankton collections.
Cymatopleura cochlea J. Brun0
Cymatopleura cochlea J. Brun, Mem. Soc. Phys. Hist. Nat. Geneve, 31:25,
pi. 276, fig. 6. 1911.
136 CTCQCHLE TCT NC CF STAT1CNS 16
1 3541
146916
14*763
1 46762
1 1395
CH
CH
EV
EV
GS19
1FE18S1
4MY1947
23AU1937
18MR1938
13MY1S67
0.01956 1
0.00034 )
C. 02029 )
0.08822 1
0.00117 1
(46917
(46922
(4<752
( 1391
( 1396
CH
CH
EV
GS15
GS2C
12JA1946
21AU1947
15SE1937
12MY1967
13MY1967
0.00055
0.00194
C. 02177
0.00479
C. 00074
146914
146764
(46767
( 1394
< 1568
CH
EV
EV
6si8
GS16
19AP1946
17JL1931
27CC1937
13MY1967
5QC1967
C. 00107
C.CC806
C.CC387
C.CC172
C.CC433
( 1569
GS17
50C1967 0.00149 I
elliptica (BrSb. and Godey) Wm. Smith.
Surirella elliptica de Br£bisson and Godey, Consid. Diat., p. ,,17. 1838.
Cymatopleura ellipt-Lca (Brel). and Godey) v\Tm. Smith, Annals Mag. Nat. Hist.,
Ser. 2, 7:13, pi. 7, fig. 10-11. 1851.
137 CT6LL1PT TCT NO OF STATIONS
(4675B
146747
EV
5JN1937
1AU1937
0.00357 )
0.00495 )
(46743
_116765_
EV
20JN1937
30AU1937
C.00856 )
0.00558 I
146757
(
Cymatopleura solea (Br^b. and Godey) Wm. Smith
Cymbella solea de BrSbisson and Godey, Mem. Soc. Acad. Sci. Falaise, 1:51,
pi, 7. 1835.
Cymatopleura solea (BrSb. and Godey) Wm. Smith, Annals Mag. Nat. Hist.,
Ser. 2, 7:12, pi. 3, figs. 8-9. 1851.
138 CTSOLEA TCT NO OF STATIONS 144
(60973 CH 1876 0.04724
( 3507 CH 19FE1881 0.02264
(46917 Ch 12JA1946 0.01275
(46923 CH 22N01946 0.15736
146909 CH MR1947 0.02277
146919 CH 5JN1947 0.01214
(46758 EV 5JN1937 0.03923
(46764 EV 17JL1937 0.05641
146765 EV 30AU1937 0.01673
(46750 EV 24SE1937 0.01414
[46767 EV 270C1937 0.00774
(46762 EV 18MU938 0.08822
146759 EV 19MY1938 O.OC675
{ 1225 C 6 15MY1964 O.CC392
1230 E 2 16NY1964 0.00593
1233 B 3 5JNZ964 C. 00238
1238 D 3 11JN1964 0.00400
1243 E 6 13JN1964 0.00209
1246 f 3 11JN1964 0.01195
1254 D 2 15JL1964 0.00383
1260 F 1 6JL1964 0.00191
1304 f 1 110C1964 0.00741
1323 F 1 6N01964 0.00139
1339 C 5 28HR1967 0.00624
1343 A 6 19AP1967 0.00486
1346 C 7 21AP1967 0.00134
1368 A 3 4MY1967 C.0282B
1372 C 5 5MY1967 0.01419
1375 E 3 7MY1967 0.01203
1411 C 3 31MY1967 0.00410
1414 E 2 28MY1967 0.00336
1433 C 3 17JN1967 0.00646
1437 E 3 15JN1967 0.00538
1453 E 3 15JL1967 0.00253
1^8jD_ GS 4 9CY1967 0.00336
1384 GS 8 IOMY1967 0.00924
11B9 GS13 12MY1S67 0.01289
( 3540 CH 11MY1679 0.00932
(46910 CH OC1945 0.00546
(46914 CH 19AP1946 C. 03097
(46520 CH 20DE1946 0.01232
(46916 CH 4MY1947 0.01561
(469C7 CH JL1947 0.05375
(46743 EV 20JN1937 0.05138
(46757 EV 25JL1937 0.03852
(46752 EV 15SE1937 0.02177
(46744 EV 60C1937 0.00975
(46749 EV 12MR1938 0.01214
(46751 EV 30HR1938 0.02233
(46761 EV 27HY1938 0.03543
1228 D 2 14KY1964 0.00584
1231 E 3 16KY1964 C. 01223
1439 B 6 5JM964 0.00200
1241 E 2 13JM964 C.0014B
1244 F 1 11JN1964 0.00439
1248 B 3 24JL1964 C. 00197
1257 E 3 14JL1964 0.00239
1269 E 1 15AU1964 0.00274
13C7 B 6 NQ1964 C. 00361
1325 F 3 6N01964 C. 00252
1340 C 7 28NR1967 0.00073
1344 C 3 25AP1967 C. 00165
1347 t 2 23AP1967 0.00325
1370 A 6 3MY1967 0.01381
1373 C 7 5*Y1967 0.00856
1376 E 5 6MY1967 C. 00281
1412 C 5 31MY1967 0.00842
1416 E 5 28MY1S67 0.00219
1434 C 5 17JN1967 0.00598
1448 A 6 10JL1967 0.00354
( 1511 t 2 1SE1967 0.00307
1 1381 GS 5 10MY1967 0.00239
I 1387 GS11 12HY1967 C.OUBB
( 1390 GS14 12KY1967 0.02349
1 3541 CH 1FE1881 C. 26411 1
(46921 CH 23NO1945 C. 04204 )
(46924 CH IOHY1946 ,0.22927 I
(46905 CH JA1947 0.01103 1
(46906 CH HY1947 C. 01062 )
(46922 CH 21AU1S47 C. 01163 1
(46745 EV 3JU937 C. 08359 I
(46747 EV 1AU1937 C.C2228 )
(46760 EV 22SE1937 C. 00985 )
(46748 EV 130C1937 C. 06405 1
(46768 EV 16HR1936 C.C1470 )
(46756 EV 27AP1938 0.00504 )
(46766 EV 14DE1936 C. 03169 )
1229 G 5 14MY1964 C.CC423 )
1232 E 5 16MY1964 0.01391
1237 C1 2 8JN1964 C.CC516
1242 E 3 13JN1964 C.CC300
1245 F 2 11JM964 C.01C37
1252 C1 1 16JL1964 C.CC558
1259 F 2 6JL1964 C.CC310
1285 F 1 15SE1964 C.CC582
1313 D 3 9N01964 C.CC193
1338 C 3 28MP1967 O.OC397
1342 A 4 19AP1967 C.CC180
1345 C 5 25AP1967 C. 01170
1348 E 5 23AP1967 C. 00137
1371 C 3 4MY1967 C.OC693
1374 E 2 7MY1967 C.C0598
1410 A 6 24MY1967 C. 01691
1413 C 7 25MY1961 C.CC632
1432 A 4 13JN1967 C. 00255
1436 E 2 1SJM967 C.CC724
1449 C 3 16JL1967 C. 00382
1379 GS 3 9MY1967 C. 00309
1382 GS 6 10HY1967 C. 00278 )
1388 GS12 12MY1961 C. 14480 )
1391 CS15 12MY1967 C.C431Q 1
49
-------
1 1392 GS16 12I"Y1967 0.01233
1566 GS14 5CC1967 0.00367
1575 GS28 60C1967 0.00516
1*26 MS 2 29MY1967 O.C5249
1400 SB 2 6MY1967 0.02383
1422 GA 2 23MY1967 0.02555
1393 GS17 13MY1967 0.02192
?«h GS20 13MY1967 C. 00074
1567 GS15 50C1967 C. 00635
1570 r.sia 5CC1967 0.00992
1546 LU 1 20C1967 C. 00500
msi SG 1 60C1967 0.00734
1351 HI 2 21AP1967 0.00621
J^ni MO 2 6MY1967 0.01176
~T354 GH 2 25AP1967 0.00173
Ij4q CI 2 19AP1967 0.00359
l/,23 UA 2 25NY1967 0.01713
1
1394 GS1S 13KY1967 C. 08429
1397 CS21 13MY1967 C. 00327
1566 GS16 50C1967 C. 00144
1572 GS20 6DC1547 C. 00090
1520 1-0 1 18SE1S67 C.CC4fl
1428 PU 2 29MY1S67 C. 00301
1417 HO 2 22HY1967 C.C1495 )
1402 TR 2 6MYIS67 C. 01083 )
1429 KL 2 29MY1967 C.U1U6Z 1
1419 BU 2 23MY1967 C.C5492 )
1424 KN 2 25HY1967 0.01332 )
Cymatopleura solea var. apieulata (Wm. Smith) Ralfs
Cymatoplewa apieulata Wm. Smith, Syn. British Diat., Vol. 1, p. 37, pi.
10, fig. 79. 1853.
Cymatopleura solea var. apiculata (Wm. Smith) Ralfs in: Pritchard, Hist.
Infus., p. 793. 1861.
139 CTSOLEVA TCT KC CF ST/l.'ICNS
(60973
1 469J 7
146905
(46922
(46744
(46759
1343
1408
1432
1377
1388
1 1394
( 1399
CH
CH
CH
CH
EV
EV
A 6
& 3
A 4
GS 1
GS12
GS18
PU 2
1876
12JA1946
JA1947
21AU1947
60C1S37
19MY1928
19AP1967
23HY19&7
13JN1967
9HY1967
12MY1S67
13MY1967
5MY1967
0.04724
0.00083
0.00123
C. 00048
O.OC975
O.OC675
0.00069
O.OC894
0.00255
0.00396
0.00603
0.00172
0.01360
1 3541
(46914
(46?16
(46758
(46749
( 1230
( 1345
I 1414
[ 1434
( 1381
( 1390
( 1573
I 1401
CH
CH
CH
EV
EV
£ 2
C 5
E 2
C 5
GS 5
GS14
GS21
KG 2
1FE1881
19AP1946
4HY1947
5JN1937
12HR1938
16KY1964
25AP1967
28HY1967
17JMS67
10MY1967
12KY1967
6QC1967
6HY1967
C.C0578
0.00107
0.00136
C. 01070
C. 01214
0.00296
0.00195
0.00672
C. 002 99
0.00239
0.00587
C. 00112
0.00588
(46921
i 46924
(46907
(46743
46751
1289
1376
1415
1435
1366
1391
1550
1422
CH
CH
CH
EV
EV
C 7
E 5
E 3
C 7
GS10
GS15
HP, 1
GA 2
23MC1945
10MY1946
JUS47
20JN1937
30KR1S36
140C1964
6MY1967
28HY1967
13JN1-567
12HY1967
12HY1967
SOC1967
23MY1967
C.OC065 )
0.00282 )
C.CC247 )
C.OCB56 I
C.C2233 )
O.OC44C )
C. 00281 )
C.OC450 1
C. 00316 )
C. 00287 )
C.CC95E )
C. 01239 )
C.CC511 )
Cymatapleuva solea var. olavata 0. Mull.
Cymatopleura solea var. clavata 0. Muller, Bot. Jahrb., 34(1):22, fig. 1.
J-jU j .
140 CTSCLEVC TCT NO DF STATIONS
(46747 EV
1ALJ1937 0.00248 ) (
Cymatopleupa solea var. vegula (Ehr.) Grun.
Surirella regula Ehrenberg, Ber. Akad. Wiss. Berlin, 1841:136. 1841.
Cymatoplewca regula Ralfs in-. Pritchard, Hist. Infus., p. 793] 1861*
Cymatopleura solea var. regula (Ehr.) Grunow, Verh. Zool.-Bot! Ges Wien
12:466. 1862. " '
141 CTSOLEVR TOT KC CF STATICNS
(60973 CH
146919 CH_
5JN1947 0.00303 1 146907
1FE1881 0.00978 ) (46914
JL1947 0.00197 1 146922
CH
CH
19AP1946 C.CC107 1
21AU1947 C.00048 )
Genus Cymbella Agardh
Agardh, Consp. Grit. Diat., p. 1. 1830.
Members of the genus Cymbella find their primary habitat in periphyton
or epupelic communities. The specimens that occur in our collections are
most likely derived from such habitats in most instances.
Cymbella aaut-iusovila Cleve
CyrteUa ™1™«<£ Cleve, K. Svenska Vet.-Akad. Handl., Ny pfiljd. 26(2):
Coll: 1404.
50
-------
Cymbella aequalis Win. Smith
Cymbella aequalis Wm. Smith in: Greville, Annals Mag. Nat. Hist., Ser. 2,
16:255, pi. 9, fig. 4, 1855.
185 C8SPECCE TCT NC OF STATIONS
146917
CH
12JA1946 O.OCC28 )
f I
6JL1964 0.00236 I
Cymbella affinis Kutz.
Cymbella affinis KUtzing, Bacill., p. 80, pi. 6, fig. 15. 1844.
__142__CBAFF1M TCT HC CF STATICMS
35
(46917
(46915
(46743
146763
(46750
( 1244
( 1346
( 1392
( 1569
( 1350
( 1407
CH
CH
EV
EV
EV
F 1
f 1 .
C 7
. GS16
GS17
- BH 2
SM 2
12JA1946
5JN1947
20JN1937
23AU1937
24SE1S37
HJN1964
1CAU1964
21AP1967
12MY1S67
50C1967
19AP1967
14CY1967
0.00028 ]
0.00152 )
0.00426
0.02029
C.CC943
C. 00110
0.00545
0.00134
0.00616 )
0.00297 1
C.OCBB1 I
C. 00597 )
46S24
46922
46764
46769
1229
1245
1279
1388
1565
1571
14C1
1406
CH
CH
EV
EV
0 5
F 2
E 1
GS12
GS13
GS19
MQ 2
GB 2
10HV1946
21AU1947
17JL1937
7SE1937
14KY1964
11JN1964
USE1964
12HY1967
50C1967
60Cl<367
6MY1967
13MY1967
C. 00071
C. 00048
C. 00806
0.02171
0.00211
0.00346 )
0.00785 )
0.02413 )
C. 01014 )
C. 00176 )
0.00588 ]
0.00270 )
469C6
46758
46757
46760
1240
1256
1287
1389
1567
1574
1403
CH
ev
EV
EV
0 6
E 2
f 3
CS13
6S15
G522
CA 2
HY1947
5JM937
25JL1931
22SE1937
10JN1964
14JL1964
155E1964
12MY1967
50C1967
60C1967
10HY1967
C.CC133
C. 22110
C.CC481
C.CC492
C.CC153
C.CC1B3
C.C0500
C.OC258
C.C0318
C.OC575 )
C.C3S23 1
Cymbella amphicephala Naeg. ex Kutz.
Cymbella amphicephala Naegli ex Kutzing, Sp. Alg., p. 890. 1849.
143 CBAMPHIC TC7 NC OF STAT1CNS
(46764
EV
12CY1967 0.00258
(1530
24SE1567 C.C1COC )
Cymbella angustata (Wm. 'Smith) Cleve
Navicula angustata Wm. Smith, Syn. British Diat., Vol. I, p. 52, pi. 17,
fig. 156. 1853.
Cumbella angustata (Wm. Smith) Cleve, K. Svenska Vet.-Akad. Handl., Ny
Foljd, 26(2):161. 1895.
144 CBANGUSr TCI NO Of SltTlCXS
(46764 EV
17JL1937 O.OC806 I (46757
25JC1937 0.00481 ) (46747
1AU1937 C.CC248 )
Cymbella aspera (Ehr.) Hgrib.
CoGOonema aspenm. Ehrenberg, Ber. Akad. Wiss. Berlin, 1839:30. 1839.
Cymbella aspeva Heribaud, Diat. Auvergne, p. 99, pi. 3, fig. 10. 1893.
145 CEASPERA 107 NC CF STATIONS
TTs"2
fsE1967 - 0".0039T'| Tf3?0
12NY1967 C.00587H Tl404
C.C1270
Cymbella oesatii Grun.
Cymbella oesatii Grunow in: A. Schmidt, Atlas Diat., pi. 71, figs. 48-49.
1881.
51
-------
146 CBCESATI TCT NO OF STATIONS
446919
1 1260
1 1388
1 1403
CH
f 3
&s\2
CA 2
5JN1947
6JL1964
12MY1 S67
10MY1967
0.00455 )
0.00598 )
0.00191 )
0.00603 1
0.03923 1
( 1244
I 1258
( 1285
( 13SO
( 1404
F 1
f 1
f 1
GS14
HC 2
11JN1964
6JL1964
15SE1964
12MY1967
10HY1967
0.00219 )
0. 00708 )
C. 02330 )
0.00537 )
0.02541 1
I 1245
( 1259
I 1305
( 1394
(
f 2
f 2
f 2
C-S18
UJM1964
6JL1964
HOC 1564
13KY1967
C.CC346 )
O.CC310 )
O.OC173 )
C.OC172 )
Cymbella oistula (Ehr.) Kirchn.
Baoillaria oistula Ehrenberg in: Ehrenberg and Hemprich, Symbolae physicae,
Vol. 4, pi. 2(4), fig. 10. 1828.
Cymbella oistula (Ehr.) Kirchner in: Cohn, Kryptog.-Fl. Schlesien, Vol. 2,
p. 189. 1878.
147 CBCIS1UL TCT NO OF STATIONS 43
146921
146920
(46919
( 46764
(46765
1268
1302
1387
1392
1557
1574
1530
1426
1404
1406
CH
CH
CH
EV
EV
E 2
E 5
GS11
GS16
CS 4
GS22
FR 1
MS 2
MO 2
GB 2
23N01945
20DE1946
5JN1947
17JL1S37
30AU1937
15AU1964
130C1964
12MV1S67
12HY1967
30C1967
60C1967
24SE1967
2SMY1967
10WY1967
13MY1567
0.00065
0.00092
0.025SO
0.01612
O.OC55B
O.OC274
0.00405
0.00792
0.00616
0.00374
0.01438
0.02000
0.02100
0.02541
0.00270
(46S17
146916
(46?13
(46757
I 1244
( 1270
I 1362
I 1388
( 1396
I 1567
( 1524
( 1550
< 1350
( 14C5
f
CH
CH
CH
EV
F 1
F 1
GS 6
GS12
GS20
GS15
MI 1
PR 1
BH 2
ES 2
12JA1946
4MY1947
6AU1947
25JL1937
11JN1964
10AU1964
10HY1967
12HY1967
13HY1967
50C1967
20SE1967
50C1967
19AP1967
12HY1567
C.C0055
0.00034
C.C2092
0.00963
0.00219
0.00272
0.00833
0.00603
C. 00074
0.00159
0.02189
C. 02478
0.00220
0.00645
(46914
(469C6
146922
(46747
1298
1285
1386
1389
1554
1569
1529
1553
1403
1349
CH
CH
CH
ev
F 1
f 1
GS1C
ES13
GS 1
6S17
KM 1
SG 1
CA 2
CI 2
19AP1946
MY1947
21AU1941
1AU1937
6JL1964
15SE19«4
12MY1967
12MY1967
30C1967
50C1961
20SE1967
60C1967
10WY1967
19AP1967
0.00107 )
C. 00066 )
C.OC097 )
C.OC24B )
O.OC472 )
C. 040.77 1
0.00287 )
C.CC258 1
C. 00356 )
C.C0446 )
C. 01199 )
C. 01469 I
C. 27462 )
C. 00359 I
Cymbella aistula var. gibbosa J. Brun
Cymbella oistula var. gibbosa J. Brun, Diatomiste, Vol. 2, pi. 14. fig. 27.
1895.
148 CBCISTVC JC1 NO OF STATIONS
I 1240
( 1387
( 1403
0 6
GS11
10JN1964 O.OC15J )
12MY1967 0.01564 1
I 1285
( 1566
F 1
CS14
15SE1964
50C1967
0.01165 I
0.00183 I
( 1379
( 1526
CS 3
HO 1
9NV1967
20SE1967
O.OC309 )
C.CC569 1
Cymbella oistula var. trunoata J. Brun»
Cymbella oistula var. tvuncata J. Brun, Diat. Alps et Jura p. 58 t»l 3
fig. 2. 1880. t F • »
149 CBCISTVT TCT NO OF STATIONS 1
( 1403 CA 2 10NY1967 0.02615 1 (
Cymbella ouspidata Kutz.
Cymbella euspidata Kutzing, Bacill., p. 79, pi. 3, fig. 40. 1844.
150 CBCUSPID TOT
(46764
(46761
EV
EV
NO OF STATIONS 14
17JL1937
27MY1938
0.00806 )
0.00273 )
(46757
( 1574
Ch
EV
GS22
BH 2
19AP1S46
25JL1937
60C1967
19AP1967
0.00107
0.00963
0.00575
0.00220
(46758
(46747
(46759
( 1527
I
EV
EV
TR 1
—
5JN1937
19MY1936
C.OC357 1
C.OC338 )
52
-------
Cymbella ouspidata var. schulzii A. Cleve
Cymbella ouspidata var. sohuiz-i-i A. Cleve, Soc. Sci. Fennica Comm. Biol.,
4(14):75. 1934.
152 CBCUSPVS TOT NC OF STATIONS
( 1392 Ml*"
12HY1967 0.00308 ! (
Cymbella deliaatula Klltz.
Cymbella delioatula Kutzing, Sp. Alg., p. 59. 1849.
153 CBOELICA TUT NC OF STATICKS 41
(46914 CH
19AP1946 0.001O7 1 (46S20 CH
20AE1946 C.00062 I (46916 CH
4MV1947 0.02205 )
iAOlQ CM 1.IN1947 l-jnSJ"?
4675B EV 5JN1937 0.01713
46764 EV 17JL1937 0.0*835
46763 EV 23AU1937 0.10146
46768 EV 16MR1938 0.01470
1244 f 1 11JN1964 O.OO658
1260 F 3 .6JL1964 0.00764
1304 F 1 110C1964 0.00494
1384 GS 8 10MY1967 0.00185
1389 GS13 12MY1S67 O.D1289
1394 GS18 13KY1S67 0.00172
1550 HR 1 50C1967 O.O1239
1403 CA 2 10HY1947 0.2353?
'
46SC7 r.H .111947 C.00099
-4*743 EV 20JN1937 0.00428
46757 £V 25JL1937 0.02407
46752 EV 15SE1937 0.06530
46762 EV 18MR1936 C. 02206
1258 F 1 6JL1964 0.00944
127C f 1 10AU1964 0.00272
1305 F 2 110C1964 0.00173
1387 GS11 12KY1967 C. 01980
1-390 GS1A 12HY1967 0.00587
1555 GS 2 3GC1967 C. 00706
1350 BH 2 19AP1967 0.00220
1405 ES 2 12PY1967 0,00645
46932 CH 2-1AU1947 C. 00145
46770 EV 9JL1937 C. 01193
46747 EV 1AU1937 0.00248
46748 EV 13QC1937 C. 02135
1243 E 6 13JN1964 0.00209
1259 F 2 6JL1964 O.C0310
1285 F 1 15SE1964 C. 54743
1379 GS 3 9HY1967 C. 00309
1388 GS12 12NV1967 0.00603
1391 C-S15 12MY1967 C.OC479
1574 GS22 60X1967 C.OC863
1402 TR 2 6MY1967 C. 00541
Cymbella 'hebri.dLsa (Grun.) Cleve
Encyonema hebridieum Grunow in: Cleve and Moller, Diatoms, No. 37. 1877.
Cymbella hebridiea (Grun.) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):169. 1895.
154 CBhtBBID TET TIC Of
3541
1.FEMB1 0.00978 ) <
Cymbella
Krasske
Krassfce, Bot. Arch., 3(4):204, fig. 11.
1923,
155 tBHUSTEO TCT HP OF ST^TICHS 1*9
(46914
(46757
146768
I 1388
< 1565
( 1527
( 1404
CM
£V
EV
CS12
CS13
TR 1
CO 2
l^Afl^Mi
25JL1937
5CC1967
20SE1967
10KY196J
OJOnai }
0.0-C*B1 )
8.C147C J
'0,01014 J
0.GC629 i
O.C1210 i
14*51-9
l*lI*S
t 1557
1 156<
1 1553
1
CM
EV
f 1
es 4
CS17
SG 1
5JN1S47
13OC1937
IS S£ 19 64
3OC1967
50C1967
6BC1967
C.00607 1
0.02135 )
0. 10483 )
0.00374 )
0.00149 1
0.00734 I
(46764
(46767
( 1366
( 1563
( 1574
( 1403
EV
EV
GS10
GS11
ES22
CA 2
17JL1937
270C1937
12MY1967
50C1967
60C1967
10MY1967
C. 01612
C.OC774
C. 00287
0.00234
C. 00288
0.01308
Cymbella hybrida Grun.
Cymbella hybrida Grunow ex Cleve and Moller, Diatoms, No. 161. 1878.
156 CBHYBRID TOT hC CF STATIONS 4
1469?!
23NOI?45 0.00065 I <4i747 EV 1AU1937 C.OC248 I (46751
30MP1938 C.01117 1
( 1268 E 2 15AU1964 0.00274 I I
Cymbella inaequalis Ross
Cymbella inaequalis Ross, New Phytol., 51(3):381. 1952.
157 CBINAEOU TCT NC CF STATION'S
E 2
15AU1964 O.CC274 I
53
-------
Cymbella inoerta (Grun.) Cleve
Cymbella pisciculus var. incerta Grunow in; Cleve and Holler, Diatoms,
No. 96. 1878.
Cymbella i-neevta (Grun.) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):170. 1895.
158 CBINCERT TOT NO OF STATIONS 2
I 1270 F 1 1CAU1964 0.00273 ) < 1388 GS12 12MY1967 C.02413 I
Cymbella laevis Naeg.
Cymbella laevis Naegeli ex Kiitzing, Sp. Alg., p. 58. 1849,
159 C8LAEVIS TOT NO OF STATIONS 3
(46757 EV 25JL1937 C.OC481 ) < 1285 F 1 15SE1964 0.00582 ) I 1350 GS14
12MY1967 C.OC5S7 )
Cymbella laneeolata (Ehr.) Kirchn.
Coooon&ma laneeolatwn ETirenberg, Infusionsthierchen, p. 224, pi. 19,
fig. 6. 1838.
Cymbella lanoeolata Kitchner in\ Cohn, Kryptog.-Fl. Schlesien, Vol. 2,
p. 188. 1878.
160 CBLANCEO TCT NO OF STATIONS 3
146751 EV 30HR1938 0.01117 ) < 1545 WL 1 20C1967 0.00676 I ( 1407 SM 2 14HY1967 C.OC597 )
161 CBLANCEO TCT NO OF STATIONS 1
I 1285F~l15SE19640.00582 )T
Cymbella lata Grun.
Cymbella lata Grunow ex Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):165, pi. 4, fig. 27. 1894.
162 CBLATA TOT NO OF STATIONS 2
(46747lv1AU1937O.OC248 )I 1285F 115SE19640.00582 )T
Cymbella latens Krasske
Cymbella latens Krasske, Arch. Hydrobiol., 31:43, text fig. p. 53. 1937.
IB? CBVEMTRO TCT NO OF STATIONS
160973
(46750
I 1258
( 1316
( 1541
I 13B7
1 1390
( 1397
I 157?
( 1528
[ l^&q
( 1428
I 1417
( 1401
CH
EV
F 1
D 6
E 2
GS11
GS14
GS21
BH 1
SB 1
MO 1
MU 2
MO 2
1876
24SE1937
6JL1964
9N01964
110C1967
12MY1967
12MV1967
13MY1967
18SE1967
20SE1967
4DC1967
29MY1967
22MY1567
6KY1967
0.04724 ) (46770
0.00943
O.C1180
0.00532
0.22180
0.02349
C. 00065
0.00182
0.01370
O.C0603
0.00374
(46768
( 1285
( 1543
( 1388
1 1391
( 1398
( 1523
( 1550
I 1426
( 1350
EV
EV
F 1
C 7
E 5
GS12
GS15
&S22
RA 1
MR 1
MS 2
BH 2
9JU937
16MR1938
15SE1964
16 JL 1967
10CC1967
12NY1967
12MY1967
14HY1967
19SE1967
20SE196T
50C1967
29KY1967
19AP1967
25AP1967
0.01193 ) 14676*
0.05880
0.03494
O.OC197
0.00718
0.00603
0.00479
C. 00607
0.00923
C. 19187
0.18585
0.03150
C. 05066 )
0.00)73 )
1256
1308
1453
1384
1389
1394
1574
1526
1545
1553
1427
1399
1429
EV
E Z
C 7
f. 3
GS 8
GS13
GS1B
ES22
HO 1
ML 1
SG 1
IU 2
PH 2
kL 2
14JL1S64
6N01964
15JL1967
12HY1967
13NV194?
60C1S47
20SE1967
20C1967
2«ttV19«7
2«H*l»6.t
O.OC183
0*003^4
e..oc2«
C.0206J
C.C431S
C.OC676
C.G3632
C. 04247
CA 2
10MY1967 1.2161t 1 ( 14C4
HO I
0.12T03
54
-------
Cymbella leptoceros (Ehr.) Sabenh.
Coooonema leptooeros Ehrenberg, Ber. Akad. Wiss. Berlin, 1841:123, pi. 1
(2), fig. 30. 1843.
Cymbella leptoeevos (Ehr.) Rabenhorst, Sussw.-Diat., p. 22, pi. 7, fig.
14a. 1853.
163 CBLEPTOC TCT NO OF STATIONS 3
« 1244 TT
11JN1964 0.00110 ) « 1Z70 f 1
10AU1964 0.00817 ) I 1304 f I
1IOC1564 C.CC247 )
Cymbella leptoceros var. vostvata Hust.
Cymbella leptoceros var. rostrata Hustedt, Arch. Hydrobiol., 39:132,
figs. 52-54. 1942.
CBLEPTVR TOT NO OF STATIONS
146748 EV 130C1937 0.02135 I ( 1367 GS11
I 1426 PS 2 29HY1967 0.01050 I < 1350 BH 2
I 1407 SM 2 14MY1S67 O.OC597 ) (
12MY1967 0.00396 I I 1389 GS13
19AP1967 0.00220 ) 1 1403 CA 2
12NV1967 C.00258 )
10MY1967 C.01306 I
Cymbella mexioana (Ehr.) Cleve
Coooonema mexioantan Ehrenberg, Ber. Akad. Wiss. Berlin, 1844:342. 1844.
Cymbella mexioana (Ehr.) Cleve, 1L+ Svenaka Vet.-Akad. -Handl,, Ny Foljd,
26(2):177. 1894.
165 CBHEXICA TOT NO (3> STATIONS
(46920 CH
1 1550 HB I
200E1946 0.00031 ) T 1384 GS 8
5CC196T 0.01Z39 1 t 1402 TB 2
10MY1967 0.00185 > < 1530 FR 1
6KY1967 0.00541 I t 1354 EH 2
Z4SE1967 C.01000 )
25AP1967 C.OC173 1
Cymbella nri-arosephala Grun.
Cymbella miGroeephala Grunow in: Van Heurck, Syn. Diat. Belgique, p. 63,
pi. 8, figs. 36-39. 1885.
146913 CH 6AU1947 0.01046
146747 EV 14U1937 0.00743
146751 EV 30HR1938 0.01117
1269 f. 3 15AU1964 0.00274
1297 D 6 14OC1964 0.00190
1512 E 3 1SE1967 0.00393
1555 GS 2 30C1967 0.01766
1567 6S15 50C1967 0.00318
1523 RA 1 l«El
-------
168 CBNAVICU TOT NO OF STATIONS 10
146921
146905
(46906
(46744
CH
CH
CH
EV
23N01945
JA1947
MY 194 7
60C1S37
0.00065 1
0.00123 )
0.00066 )
0.00488 )
(46517
146909
(46S19
<
CH
CH
CH
12JA1946
MR1947
5JM1947
C. 00028 1
0.00455 )
0.004SS I
(46924
(46916
(46922
CH
CH
CH
10HY1946
4MY194J
21AU1941
C.CC071 )
C. 00034 )
C.OC048 )
Cymbella norvegica Grun.
Cymbella norvegioa Grunow in: A. Schmidt, Atlas Diat., pi. 10, fig. 41.
1875.
169 CBNCBVE6 TCT NO OF STATIONS. 1
1 1403 Cif 2
10HY19J7 C.CI3C8 1
Cymbella obtus-iusoula Kutz.
Cymbella obtusiuseula Kutzing, Bacill., p. 79, pi. 3, fig. 68. 1844.
170 CBOBTUS1 TCT HO OF STATIONS
160973
CH
1876 0.02362 1
GS15
50C1967 0.00318 ) ( 1520
5JN1937 0.00357 ) < 1393 tS17
16SE1967 0.00471 ) 1 1405
ES 2
13HY1967 C.OC274 I
12MY1967 C.OC645 )
Cymbella parva (Wm. Smith) Cleve
Coooonema parvum Wm. Smith, Syn. British Diat., Vol. 1, p. 76, pi. 23,
fig. 222. 1853.
Cymbella parva (Wm. Smith) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):172. 1894.
171 CBPARVA TCT NO OF STATIONS
160973
CH
LU 1
1876
20C1967
0.02362 )
0.00500 )
( 1256
1 1403
E 2
CA 2
14JL1964
10EY1967
0.00183 )
0.02615 1
15SE1964 C.01747 I
Cymbella parvula Krasske
Cymbella parvula Krasske, Zeitschr. Geschiebeforsch., 9(2):92, pi. 2,
fig. 3. 1933.
172 CBPARVUL TCT NO OF STATIONS
I467SB
5JM937 0.00357 I 1 1258
6J11964 0.00236 I ( 13S2
1ZMY1967 C.OC308 I
I 1565
1 1404
GS13
JJJ_2_
50C1967
0.01521 )
0.02541 I
I 1574 GS22
1 14C7 SH 2
60C1967
14MY1967
0.00288 I
0.00597 )
I 1553
SG 1
60C1967 0.00734 I
Cymbella prostrata (Berk.) Cleve
Monema prostration Berkeley, Gleanings British Alg., pi. 4, fig. 3.
1832.
Cymbella proetrata (Berk.) Cleve, K. Svenska Vet.-Akad. Handl., Ny Folid
26(2): 167. 1894.
173 CBPRDSTR TOT NO OF STATIONS 80
146921
(46924
(46916
(46922
(46757
(46765
(46749
(46766
1 1265
( 12.85
( 1369
( 1504
1 1538
I 1394
( 1556
( 1567
CH
CH
CH
CH
EV
EV
EV
EV
C- 2
F 1
A 4
A 3
E 5
GS18
GS21
GS 3
GS15
23N01945
IOWY1946
4MY1947
21AU1947
25JL1937
30AU1937
12MR1938
140E1938
10AU1964
15SE1964
4MY1567
28AU1967
23SE1967
13MY1967
13MY1967
30C1967
50C1967
0.00129
0.00071
0.00034
0.00291
0.00963
O.OC558
0.03641
0.01584
0.00224
0.01165
0.00745 1
0.00247
0.29277
0.00172
0.00392
0.01043
0.00635
(46517
(46923
(46SC6
(46758
(46747
(46752
(46768
( 1243
( 1270
I 1343
I 1375
I 1512
( 1386
I 1395
< 1554
I 1557
1 1568
CH
CH
CH
EV
EV
EV
EV
t 6
F 1
A 6
e 3
GS10
GS 1
GS16
12JA194
22N0194
HY194
5JN193
1AU193
15 SE 1,93
16NR193
13JN196
10AU196
19AP196
7MY196-
12KY196"
30C196'
30C196"
50C196'
6 0.00083
6 0.00437
7 0.00066
7 0.01426
7 0.0049S
7 C. 13061
8 0.01470
4 0.00418
4 0.00272
7 0.00208
r 0.00241
r 0.00393
r 0.00287
1 0.00117
r 0.00356
r 0.00747
r 0.00144
(46915
146920
(46919
(46764
146763
(46748
(46762
1 124S
( 1279
( 1345
( 1416
1 1536
( 1387
( 1396
I 1555
( 1563
( 1569
CH
CH
CH
EV
EV
EV
EV
F 2
E 1
C 5
£ 5
E 2
GS11
C-S20
GS 2
CS11
GS17
20FE1946
200E1946
5JN1947
17JL1937
23AU1937
13QC1937
18»R1938
11JN1964
16SE1964
2SAP1S67
28HY1967
24SE1967
12CY1967
13WY1967
30C1967
50C1967
50C1961
O.OC569
0.00031
C . Q 546 3
C.OC806
•C. 02029
C.1281C
C. 06617
0.00346
O.OG393
O.OC195
C.OC219 1
0.01091 I
C.CC792 |
C.OC074 1
C. 00353 )
C. 00234 )
C.OC149 1
56
-------
1573 GS21 60C1S6T 0.00336
1547 MS 1 20C1S67 0.00798
1521 SH 1 18SE1967 0.00577
1526 NO 1 20SE1967 0.06258
1529 KH 1 20SE1967 2.68617
1548 CA 1 30C1967 0.05088
1553 SG 1 60C1967 0.01469
1427 LU 2 29MY1967 0.01211
1402 TR 2 6HY1967 0.01624
1349 Cl 2 19APLSA7 0.00359
1574 GS22 60C1967 0.03739
1524 HI 1 20SE1S67 0.13135
1523 RA 1 19SE1967 0.02768
1527 TR 1 20SE1967 0.06289
1530 FR 1 24SE1967 0.16002
1552 SH 1 60C1967 0.01321
1428 HU 2 29HY1967 0.00301
1350 BH 2 19AP1967 0.00441
1403 CA 2 10HY1967 0.06539
14C6 GB 2 13HY1967 0.00270
1544 CU 1 20C1967 C.CC238
1546 LU 1 20C196T C.C6502
1525 PW 1 20SE1967 C. 08355
1528 SB 1 20SE1967 C.C2888
1545 kL 1 20C1967 C.OC676
1550 CR 1 50C1967 0.07434
1426 US 2 29HY1967 0.03150
1401 fO 2 6MY1961 C. 00588
1407 SH 2 14HY1967 C.C4180
Cymbella rugosa Hust.
Cymbella rugosa Hustedt, Abh. Naturw. Ver,
1955.
Bremen, 34(1):67, figs. 29-31.
179 CBTURGID TOT NO Of STATIONS
I 3541
1FE1881
11JMS64 C.00110
I 1210
F I
10AU1964 CiCC272 >
Cymbella si.nua.ta Greg.
Cymbella sinuata Gregory, Quart. J. Micr. Sci., 4:4, pi. 1, fig. 17. 1856.
175 CBSINUA7 TCT NO OF STATIONS
30
( 3540
146763
1258
12B5
1394
1569
1573
1546
1551
1 1417
CH
EV
F 1
F 1
GS18
GS17
GS21
LU 1
ES 1
HO 2
11MY1879
23AU1931
6JL1964
15SE1964
13HY1967
50C1967
60C1967
2OC1967
50C1967
22MY1S67
0.00466 ) (46758
C. 02029 ) (46748
0.00472 ) ( 1263
0.00582 ) I 1372
0.00172 1
0.00149 1
0.00112 )
0.00500 )
0.00799 )
0.00374 )
1567
1571
1574
1526
1550
1350
EV
EV
C 7
C '5
GS15
GS19
GS22
HO 1
HR 1
BH 2
5JN1937
130C1937
15AU1964
5MY1967
50C1967
60C1967
60C1967
20SE1967
50C1967
19AP1967
C. 00357
0.02135
C. 00400
0.00355
0.00635
C. 00059
C. 00863
0.01138
C. 26019
0.01762
146764
( 1256
( 1275
t 1315
1568
1572
1515
1527
1426
1401
EV
E 2
0 2
e 3
GS16
GS20
GS28
TR 1
PS 2
HO 2
17JL1937
14JL1964
17SE1964
7HY1S61
50C1961
60C1967
60C1961
20SE1961
29HY1961
6MY1961
C.CC806 I
0.00183
0.00645
O.OC241
C.CC144
C.OC090
C.OC129
C. 00629
C. 01050
C. 00588
Cymbella sinuata fo. ovata Hust.
Cymbella sinuata fo. ovata Hustedt, Internat. Rev. Hydrobiol., 10:236.
1922.
17A CBSIMUFO TOT NO OF STATIONS L_
1350
BH 2
19AP196T 0.00220 I 1
Cymbella si-nuata var. antiqua (Grun.) Cleye
Cymbella ab^nrris var, ant-Cqua Grunow vn-, Mojs;isovics and Neumayer, Beitr.
PalHontol. Osterretck-Ungarns, Bd. 2, Heft 4, p. 141, pi. 29, fig. 31.
1882.
Coll: 1105.
Cymbella tviangulata (Ehr.) Cleve
Gloeonema toiangulakvim Ehrenberg, Ber. Akad. Wiss. Berlin, 1845:77. 1846.
Cymbella. trlangulata, (Ehr.) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):168. 1894.
146915
(46907
C 1285 '
1 1338
IANG TCT
CH
CH
F 1
GS12
NO OF STATIONS 36
11HY1879
20FE1946
JA1947
JL1947
6JL1964
15SE1964
7N01964
12MY1S67
0.00466
0.01707
0.00123
0.00049
O.C0310
0.01747
0.00333
0.01810
( 3541
(46923
(46909
(46922
( 1275
( 1302
( 1323
( 1390
CH
CH
CH
CH
D 2
E 5
F 1
GS14
1FE1881
22N01946
HR1941
21AU1947
17SE1964
130C1964
6N01964
12MY1967
C. 03913
0.02841
0.01366
0.00533
0.00645
0.00405
0.00279
(46921 CH
(46920 CH
(46906 CH
124 f 0 3
1284 E 6
1304 F 1
1324 F 2
0.00587 1557 S5 4
23N01945
20061946
HY1947
17SE1964
1 IOC 1964
6N01964
C. 00323 )
C.OC066 )
0.01589 )
0.00233 1
57
-------
I 1558
I 1564
( 1568
[ 1548
GS 5
GS12
GS16
CA 1
Anr 1967
50C1967
50C1967
30C1967
C. 00396 I
0.00494 I
0.00433 )
0.03816 )
{ 1562
( 1566
( 1569
I 1551
GS1C
GS14
GS17
ES 1
5CC1967
50C1967
50C1967
5CC1967
0.00247 I
0.00183 )
0. 01635 1
0.00799 )
( 1563
1 1567
( 1570
< 1421
GS11
6SI5
CS18
CH 2
«npi«67
50C1967
50C1967 .
23MY1967
C.CC234_L
C. 02382 )
C.OC992 )
C. 01735 )
Cymbeila twnida (Breb.) V. H.
Coooonema tumida de Br£bisson ex Kutzing, Sp. Alg., p. 60. 1849.
Cymbeila tumida (BrSb.) Van Heurck, Syn. Diat. Belgique, p. 64, pi. 2,
fig. 10. 1885.
178 CBTUMOA TCI NC CF STATIONS 1
I 1544 KU 1
2GC1S67 O.OC477 ) (
Cymbeila turgida Greg.
Cymbeila turgida Gregory, Quart. J. Micr. Sci., 4:5, pi. 1, fig. 18,
1856.
180 CBTURGVP TCT NC OF STATICNS 2
55TT 12MY1S67- 676TT8T1I ~138
-------
Cymbella sp. #4.
164 CESPECDD TOT
1 46768
EV
Cymbella sp
186 CBSPECCF TCI
(46919
1 467*4
(46744
I 1565
CH
cv
EV
GS13
NO OF STATIONS 7
16MR1938
. #6.
0.01470 I
0.00326 I
(46751 EV
1
24SE1937
30HR1938
C
1
.00471 1
.21706 )
(46748 EV
(1284 E 6
130C1937
C. 02135 I
NO OF STATIONS 11
5JN1947
17JL1937
60C1937
50C1967
0.00152 )
0.04835 )
0.00975 )
0.02028 )
146758 EV
(46747 EV
(46767 EV
( 1405 ES 2
5JN1937
1AU1937
27CC1937
12MY1967
C
n
0
0
.C1070 )
.00248 1
.00387 )
.00645 )
(46770 EV
(46752 EV
(46759 EV
I
9JL1937
15SE1937
19MY1S38
C.OCS96 )
C. 02177 )
0. 00338 )
Cymbella sp. #7.
187 CBSPECOG TOT NC OF STATIONS 4
146770 EV
9JU937 0.01789 ) (46764 EV
6PR1S38 0.0147C ) t
17JL1937 0.04835 I
Cymbella sp. #8.
lea CESPECOH TCT NC OF STATIONS
(46164 EV
17JU937 0.01612 ) (
Cymbella sp. #9.
189 C8SPECOI TOT NO OF STATIONS 1
(46770 EV
9JL1937 O.OC596 ) (
Cymbella sp. #10.
19C CESPECOJ TOT NO Of STATIONS
I 1394 GS18
13HY1967 O.OC172 ) (
Cymbella sp. #11.
191 CBSPECOK TCT NO OF STATIONS 1
( 13966S2214MY19670.00304 IT
Cymbella sp. #12.
192 C8SPECOL TOT NO OF STATICNS 1
1 J565GS1350C1S670.00507 »T
Cymbella sp. #13.
193 CBSPECOM TOT NO OF STATIONS 1
I 1567 GS15
50C1967 0.00159 ) (
59
-------
Cymbe11,a sp. #14.
19* CBSPECON ICT r.C CF STATIONS J
I 1573GS2160C1S670.00112 )
Genus Cymbellonitzsehia Hust.
Hustedt in: A. Schmidt, Atlas Diat., pi. 352, figs. 12-13. 1924.
Members of the genus Cymbellonitzs.ohia usually comprise a minor portion
of the flora. Scattered reports of its occurrence indicate that it finds
its primary habitat in periphyton and epipelic communities:. The only species
found in Lake Michigan is most abundant in epipelic communities in relatively
deep water* Only isolated accidental occurrences are noted in plankton col-
lections.
Cymbellonitsschia diluviana Rust.
Cyrribel'Lonitzschia diluviana Hustedt, Ahh.. Naturw. Verein Bremen 33(3):453,
fig. 23-24. 1954.
195 CIVDILIUV TOT NO OF STATIONS
I 1550 HR 1 50C1567 0.02478 ) < 1417 HO 2 22MY1967 0.00374 I ( 1350 BH 2 19*P1967 C.OC220 I
60
-------
Genus Deniiculq Ehr.
Ehrenherg, Infuslonsthlerschen, p. 2Q7.
1838.
Most freshwater members of the. genus Denfi.oula are most ahundant in
communities growing on solid surfaces. This is true of the single represen-
tative that occurs in our collections. It is, however, apparently a suc-
cessful facultative planktont as it is noted in moderate abundance in many
plankton collections from Lake Michigan, especially in nearshore collections.
Vent-ioula tenu-is var. crassula (Naeg.) Hust.
Dentteula orassula Naegeli ex KUtzing, Sp. Alg., p. 889. 1849.
Dentioula tenuis var. crassula (Naeg.) Hustedt in: Pascher, Sussw.-Fl.
Mitteleuropas, Heft 10, Aufl. 2, p. 381, fig. 724. 1930.
196 DETENUVC TOT NG CF STATIONS 98
(60973 CH 1876 0.02362 ) (46521 CH 23N01945 0.00065
146920 CH 20DE1946 0.00031 1 (46916 CH 4MY1947. C. 00034
(46919 CH 5JN1947 0.00303
14*764 EV 17JL1937 0.01612
46748 EV 130C1937 0.04270
1240 D 6 10JN1964 0.00153
1254 0 2 15JL1964 0.00192
1259 F 2 6JL1964 0.00930
1268 E 2 15AU1964 0.12310
1278 D 6 18SE1964 0.00384
1285 F 1 15SE1964 0.81533
1299 E 2 120C1964 0.00314
1304 F 1 110C1964 0.03457
1322 E 6 7ND1964 0.00333
1346 C 7 21AP1967 0.00134
1452 E 2 14JL1967 0.01916
1534 A 6 19SE1967 0.00310
151ft E 5 23SE1967 0.02762
1543 E 5 100C1967 0.00718
1382 GS 6 10MY1967 0.00555
1387 GS11 12MY1967 0.20596
1398 GS22 14MY1967 0.00911
1556 GS 3 30C1967 0.01564
1559 GS 7 4QC1967 C. 01049
1563 GSll 50C1967 0.00468
1566 GS14 50C1967 0.001B3
1569 GS17 50C1967 O.OC149
1546 LU 1 20C1967 0.02501
1529 KM 1 2CSE1967 0.57561
1549 MO 1 4QC1967 0.06852
1550 MR 1 50C1967 0.01239
1402 TR 2 6KY1967 0.02166
1404 MO 2 10HY1967 0.01270
I46SC7 CH JL1947 C. 00049
(46763 EV 23AU1S37 C. 04058
(46767 EV 27GC1937 0.00774
1243 E 6 13JN1964 0.01253
1256 E 2 14JL1964 0.00183
1260 F 3 6JL1964 0.01528
1270 F 1 10AU1964 0.05719
1279 E 1 16SE1964 C. 05497
1286 F 2 15SE1964 0.01095
1301 E 4 130C1964 0.00442
1305 F 2 110C1964 C. 00690
1323 F 1 6N01964 0.00139
1374 E 2 7HY1967 0.00299
1512 E 3 1SE1967 0.00393
1536 E 2 24SE1967 0.01363
1541 E 2 110C1967 0.00532
1380 GS 4 9KY1967 0.00336
1384 GS 8 10KY1967 0.00555
1389 GS13 12HY1967 0.018GS
1554 GS 1 30C1967 0.02846
1557 GS 4 30C1967 C. 02242
1561 GS 9 4CC1967 0.00587
1564 GS12 50C1567 0.0016S
1567 GS15 50C1967 0.00313
1574 GS22 60C1967 0.17834
1526 MO 1 20SE1967 0.05689
1530 FR 1 24SE1967 C. 32003
1551 ES 1 5CC1967 C. 02396
1553 SG 1 60C1967 0.02203
1352 Kli 2 21AP1967 0.02577
(46914 CH 19AP1946 C. 00107
(46906 CH MY1941 C.OC066
(46758 EV 5JM937 C.OC357
146752 EV 15SE1937 C.C6530
(46762 EV 18HR1938 C. 02206
1 1244 F 1 11JN1964 0.00877
14C7 SM 2 14MV1967 0.17317 1
1258 F 1 6JL1964 C. 17462
1267 D 6 18AU1964 C.OC432
1444 6 6 19SE1964 C. 00303
1284 E 6 17SE1964 0.02224
1287 F 3 15SE1964 C.GC500
1302 E 5 130C1964 0.00405
1306 F 3 110C1964 C. 00554
1340 C 7 28MR1967 C.OC145
1449 C 3 16JL1967 C.003B2
1533 A 4 19SE1967 0.00464
1537 E 3 24SE1967 O.OC431
1542 E 3 110C1967 0.01526
1381 CS 5 10HY1967 C.OC239
1386 GS10 12MV1967 0.00287
1394 GS18 13MY1967 C.CC516
1555 GS 2 30C1967 C.02472
1558 CS 5 40C1567 C.C3171
1562 GS10 50C1967 C. 00493
1565 CS13 5CC1967 C. 01521
1568 GS1« 50C1967 0.00144
1547 PS 1 20C1967 C. 02395
1527 TR 1 20SE1967 C. 08176
1545 kL 1 20C1967 C.CC676
1552 SB 1 6QC1967 O.OS943
1401 MO 2 6MY1967 0.01764
1403 CA 2 10MY1967 C.6277C
Genus Diatoma Bory (nom. cons, non Loureiro 1790)
Bory, Diet. Class. Hist. Nat., 5:461. 1824.
Of the members of the genus Diatoma occurring in Lake Michigan, only
D. tenue var. elongata and D. tenue var. padhycephala are. abundant in off-
shore plankton collections. Both of these entities are erratic in occurence
but tend to be most abundant in areas that are appreciably eutrophied. During
peak bloom years they are taken in collections from the entire basin.
Diatoma ekreribergi-i- Kutz.
Diatoma eheeribergii Kutzing, Bacill., p. 48, pi. 17, fig. 17(1-3). 1844.
197 OIEHRENB TCT NO OF STATIONS 40
(46921
146920
146919
1 AA73A
CH
CH
CH
PU
23N01945
20DE1946
5JN1947
«;.twio*7
0.00065 1
0.00092 )
2.41574 )
1.49775 1
I46S24
(46916
(46907
146771
CH
CH
CH
EV
10HY1946
4KY1947
JL1947
11JM937
0.00141 1
0.00170 )
C. 00049 )
0.00238_J.
(46923
(46906
(46922
(46770
Ch
CH
CH
EV
22N01946
HV1947
21AU1941
9JL1937
C.CC219 )
C. 00066 )
C.OCC97 I
C. 00596 )
61
-------
(46764 EV 17JL1937 O.OOB06
46756 EV 27AP193S 0.00168
1345 C 5 25AP1967 O.C07BO
1449 C 3 16JL1967 0.00764
1396 GS22 14MY1967 0.00607
1550 MR 1 50C1967 0.03717
1417 HO 2 22MY1967 0.09346
I 1354 GH 2 25AP1967 0.01206
( 1423 HA 2 25MY1967 0.00856
|
46»r tv zajLivjr u.uuisi
46761 EV 27MY1938 0.00273
1346 C 7 21AP1967 0.00267
1395 GS19 13MY1967 0.00587
1572 GS20 60C1967 C. 00090
1530 FR 1 24SE1967 C. 01000
1426 MS 2 29MY1967 C. 20997
1418 SH 2 22MY1967 0.04666
1429 WL 2 29HY1967 0.04247
46/67 EV 270C1S37 «-?"fT
1226 C 7 16HY1964 0.00381
1348 E 5 23AP1967 <;•"?"
1397 CS21 13MY1967 C .01112
1574 ES22 60C196I J'«"?*
1552 5* 1 6QC1967 0.00660 1
1427 LU 2 29MY1967 u'iJS^i '
J401 HO 2 <.«V1967 0.00588 _J
1407 SM 2 14MV1967 C.1V1UO )
?04 OIVULGVG TOT NO OF STATIONS 1
I 1340C 728KR1967O.C0800 IT
Diatoma hiemale var. mesodon (Ehr.) Grun.
Fvagilaria mesodon Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1838:57,
pi. 2(1), fig. 9. 1839.
Diatoma hiemale var. mesodon Grunow in: Van Heurck, Syn. Diat. Belgique,
pi. 51, figs. 3-4. 1881.
_198 OJHIEI'VM TCT NO OF STATIONS 2
14675B
fv
SJN1937 O.CC357 I ( 1341 A_
19AP1967 0.00108 I (
Diatoma tenue Agardh
Diatoma tenue Argardh, Svenska Bot., Vol. 7, pi. 491, figs. 4-5. 1812.
.199 DITEMUE TOT NO OF STAT1CKS 58_
146924
10MY1946
HR1947 0.02277 ) 146912
CH
AP194T C.C1150
46771 EV 11JN1937 0.01189
A&7&6 F« 14DE1938 0.06337
1239 D 4 11JN1964 0.00116
1244 F 1 11JN1964 0.00329
1265 C* 2 10AU1964 0.01116
1302 E 5 130C1964 0.00405
1340 C 7 28MR1967 0.06617
1433 C 3 17JN1967 0.03875
1449 C 3 16JL1967 0.00764
1454 E 5 15JL1967 0.00200
1396 GS20 13MY1967 0.01036
1554 GS 1 30C1967 0.01067
1522 BH 1 18SE1967 0.00369
1426 MS 2 2SMY1967 0.16798
1350 BH 2 19AP196T 0.63435
1352 KU 2 21AP1967 0.00859
1429 ML 2 29HY1967 0.03185
1406 GB 2 13HY1967 0.00809
1423 HA 2 25MY1967 0.03426
46749 EV 12MR1938 0.03641
1230 E 2 16HY1964 0.00296
1240 0 6 10JN1964 0.00153
1440 8 6 11JL1964 0.00737
1268 E 2 15AU1964 0.00274
1337 C 3 2MA1967 0.68490
1431 A 3 12JN1967 0.00257
1435 C 7 13JN1967 0.00631
1451 C 7 16JL1967 0.08267
1536 E 2 24SE1967 0.01363
1397 GS21 13KY1967 0.41205
1555 GS 2 30C1947 0.00353
1550 UK 1 5GC19&7 0.02478
1351 K! 2 21AP1-967 0.17688
1425 RA 2 25MY1967 0.01768
1353 fR 2 23AP1967 0.09494
1405 ES 2 12PV1967 0.00645
1421 CH 2 23HY1967 C. 06940
46761 EV 27«Y193« 0.00273
1439 B 6 5JN1964 C. 00200
1241 E 2 13JN1964 0.00296
1264 C* 1 10AU1964 O.OC193
1269 E 3 15AU1964 0.00548
1338 C 3 28MR1961 C. 25520
1432 A 4 13JN1967 0.00511
1446 A 3 UJL1967 C. 00489
1452 E 2 14JL1967 C. 00426
1395 CS19 13MY1967 C. 00235
1398 GS22 14MY1967 C. 00304
1544 KU 1 2HC1967 0.01191
1428 HU 2 29MY1967 1.39805
1417 HO 2 22MY1967 0.07103
1399 PH 2 5HY1961 0.00680
1354 GH 2 25AP1967 1.4C847
1407 SH 2 14MV1967 C. 50158
1422 6A 2 23HY1967 0.03576
Diatoma tenue var. elongatim Lytxgb.
Diatoma tenue var. elongation Lyngbye, Tent. Hydrophyt. Danicae, p.
pi. 61, figs. E 1-2. 1819.
200 DITENUVE TOT HO OF STATIONS 283
(46910 CH DC 1945 1.63302
179,
146921
CH
23N01945 15.99441 ) I469C8
OE1945 25.19637 )
144917
( 46924
146905
146916
146907
146758
146745
146757
( 46765
146750
146767
146762
(46756
r«
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
EV
IJJA1946
10MY1946
JA1947
4WY1547
JL1947
5JN1937
3JL1937
25JL1937
30AU1937
24SE1937
27CC1937
18HR1938
27AP1938
36.27559
5.57170
3.02733
J7. 78786
7.17973
2.09685
0.02090
0. 18295
0.03900
0.02826
0.05802
0.08822
7.42818
146915
(46923
(469C9
(469C6
(46913
(46771
(46170
(46747
(46752
(46744
(46749
(46751
(46759
CH
CH
CH
CH
CH
EV
EV
ev
EV
EV
EV
EV
EV
20FE1946
22N01946
KR1947
MY1947
6AU1947
11JM937
9JL1937
1AU1937
15SE1937
60C1937
12MR1938
30XR1938
19M»1938
28.11130
1.70477
14.64869
18.37766
0.84719
1.19823
0.01789
0.02723
0.10884
2.18494
0.52191
1.25056
0.69548
146914
(46920
(46912
(46919
(46922
(46743
(46764
•46763
(46760
(46748
(46768
U6772
(46761
CH
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
EV
19AP194£
2 ODE 1946
AP1947
5JN1947
21AU1947
20JN1937
17JL1937
23AU1937
22SE193T
130C1937
16MR1938
18AP1938
27MY1938
11.79887
3.2G436
C.39C94
18. 09836
2.23663
0. 14987
C.C3223
0.06088
C. 03939
0.02135
C. 16169
C. 49681
C. 33522
62
-------
(46766
1 1225
1 1233
( 1*39
1 1240
I 1243
I 1247
1 1441
I 1251
I 1254
1 1257
( 1260
( 1**2
I 1266
( 1269
( 1271
t 1274
1 1277
( 12BO
( 1283
( 1288
I 1290
1 1294
( 1297
i unn
1 1303
1 1308
( 1311
t 1314
( 1317
1 1320
C 1323
1 1^8
1 1341
1 1344
( 1347
1 1369
( 1374
1 1408
I 1412
I 1415
( 1432
1 1435
( 1438
I 1448
I 1451
1 1454
1 1512
( 1536
1 1539
f 1543
( 1379
1 1384
( 1387
( 1390
1 1393
I 1396
1 1554
( 1557
( 1560
( 1563
( 1570
1 1573
1 1544
I 1546
I 1525
1 1528
( 1531
< 1549
( 1550
( 1426
< 1417
I 1425
I 1402
1 1353
( 1403
1 1419
( 1422
t 1430
EV
C 6
B 3
B 6
D 6
E 6
B 3
B 6
t' 7
0 2
E 3
F 3
B 6
D 3
E 3
C 7
D 1
0 *
E 2
E 5
B 3
C' 1
D 3
D 6
E 3
E 6
C 7
0 1
D 4
E 1
E 4
f 1
C 3
A 3
C 3
E 2
A 4
E 2
A 3
C 5
E 3
A 4
C 7
E 5
A 6
C 7
E 5
E 3
E 2
C 3
E 5
GS 3
GS 8
GS11
GS1*
GS17
GS20
GS 1
GS 4
GS 8
GS11
GS18
GS21
KU 1
PN
SB
GH
MO
MR 1
MS '2
HO 2
RA 2
TR 2
FR 2
CA 2
SM 2
BU 2
GA 2
MC 2
l*OEl?38
15MY196*
5JN2964
5JN196*
10JN1964
13JN1964
14JL1964
24JL1964
16JL196*
15JL1964
14JL1964
6JL1964
2AU196*
18AU1964
15AU196*
22SE196*
17SE1964
18SE1964
16SE1964
16SE1964
15DC1964
160C1S64
15DC1964
140C1964
13CC1964
130C1964
6N01964
8N0196*
9NQ1964
6N0196*
7N01964
6N01964
2SKR1967
19AP1967
25AP1967
23AP1967
4MY1967
7MY1S67
23MY1967
31MY1967
28MY1967
13JN1967
13JN1967
14JN1967
10JL1967
16JL1S67
15JL1967
1SE1967
24SE1967
4DC1967
10DC1967
9MY1967
10MY1967
12MY1967
12MY1S67
13MY1967
13MY1967
30C1967
30C1967
4QC1967
5DC1967
5CC1967
60C1967
20C1967
20C1967
20SE1967
20SE1967
25SE1967
40C1967
50C1967
29MY1967
22MY1967
25MY1967
6MY1967
Z3AP1967
10PY1967
1-4MY1967
23MY1567
23MY1967
12JN1967
7.98479 1
0.20776 )
0.15241 )
C. 12787 1
0.17180 )
0.21298 )
0.298BO 1
0.01542 )
0.13037 )
0.67037 )
0.03589 )
0.13370 )
0.01706 )
0.67700 1
0.02467 1
0.22198 )
0.04223 1
0.03718 )
0.04085 I
0.03065 I
0.00435 )
0.01516 )
0.01648 )
0.26655 )
0.02148 1
1.37132 )
0.13687 )
0.00516 1
0.01435 I
0.00383 t
C. 01034 )
0.00139 )
0.80129 I
0.91123 >
0.21011 )
1.25193 I
0.00373 1
0.01494 )
0.00894 I
0.00421 )
0.00450 1
0.12261 )
0.73880 I
0.00363 )
10.64545 )
14.19235 )
2.38048 1
0.49866 )
8.78006 )
0.00503 I
0.10774 )
0.00619 I
O.C0739 1
0.01564 I
0.01174 1
0.01918 1
0.56972 )
6.47548 1
0.16069 )
0.08501 I
0.00701 )
0.01983 )
0.10527 )
0.102*6 )
0.42015 I
0.04178 )
0.05775 )
0.00845 )
0.06852 1
0.65667 )
18.64566 )
14.53567 1
1.34382 1
0.73099 )
4.21941 )
0.05231 )
7.35654 )
3.51520 )
2.86108 I
2.49198 1
I 1223
( 1226
( 1229
I 1234
I 1236
( 1241
( 1244
( 1248
1 1249
( 1252
( 1255
< 1258
I 1261
( 1264
( 1267
( 1270
( 1272
t 1275
{ 1278
I 1281
1 1284
( 1445
( 1291
( 1295
( 1298
( 1301
( 1306
( 1309
( 1312
( 1315
I 1318
( 1321
( 1336
I 1339
( 1342
( 1345
1 1348
1 1370
( 1375
( 1409
( 1413
I 1416
( 1433
( 1436
< 1446
1 1449
( 1452
[ 1510
< 1513
( 1537
( 1541
[ 1377
( 1380
1 1385
[ 1388
( 1391
1 1394
( 1397
( 1555
{ 1558
< 1561
I 1568
I 1571
( 1574
I 1547
( 1521
I 1526
( 1529
I 1545
( 1551
( 1553
< 1351
( 1418
( 1399
« 1400
( 1354
I 1404
( 1349
1 1420
( 1423
B 3
C 7
D 5
B 3
C1 1
E 2
F 1
B 3
C 3
C' 1
D 5
F 1
B 3
C1 1
D 6
f 1
C' 1
D 2
D 6
E 3
E 6
B 6
C1 2
0 4
E I
E 4
F 3
C' 1
D 2
D 5
E 2
E 5
C 3
C 5
A 4
C 5
E 5
A 6
E 3
A 4
C 7
E 5
C 3
E 2
A 3
C 3
E 2
L l
f. 5
E 3
E 2
GS I
GS 4
GS 9
GS12
GS15
GSIB
GS21
GS 2
GS 5
GS 9
GS16
GS19
GS22
MS 1
SH 1
MC 1
KM 1
WL 1
ES 1
SG 1
MI 2
SH 2
Ph Z
SB 2
GH 2
MO 2
CI 2
IH 2
HA 2
18MY196*
16HY1S64
14MY1964
18JM964
8JM964
13JN1964
11JN1964
24JL1964
8JL1964
16JL1964
15JL1964
6JL196*
2AU1964
10AU1964
18AU1964
10AU1964
10SE1964
17SE1964
18SE1964
16SE1964
17SE1964
14DC1964
160C196*
15GC1964
120C1964
13CC1964
110C1964
10N01964
8N01964
9N01964
7N01964
7N0196*
27JA1967
28PIU967
19AP1967
25AP1967
23AP1967
3MY1967
7MY1967
23MY1967
25MY1967
28MY1967
17JN1967
15JN1967
11JL1967
UJL1967
14JL1967
^•*AU1967
31AU1967
24SE1967
110C1967
9MY1967
9HY1967
10MY1967
12MY1967
12HY1967
13MY1967
13MY1967
30C1967
40C1S67
40C1967
50C1967
60C1967
60C1967
20C1967
18SE1967
20SE1967
20SE1967
20C1967
50C1967
60C1967
21AP1967
22NV1967
5HY1967
6MY1967
25AP1967
10MY1967
19AP1967
23MY1967
25PY1967
0.02344
C. 06849
0.00634
0.23336
1.71533
0.25875
0.04934
0.03547
1.14068
1.07392
C.C8726
0.66074
C. 00196
0.07337
C. 16645
C. 17155
0.00821
C. 01935
C. 02690
C. 02355
0.40352
0.00978
0.00734
0.01189
0.00269
C. 01766
0.00277
C.C2251
0.00621
C.C2730
0.01332
0.02873
C.C1348
0.15589
C. 25265
C. 08187
0.11378
0.23478
0.002*1
0.00298
0.00316
0.03280
0.24545
1.85989
1.88347
0.22546
20.11751
C. 16756
C. 09121
3.32097
1.24528
0.00396
0.02354
0.00471
0.01207
0.00479
0.16170
JJ.2?642_
7.16808
0.055*9
0.08217
0.02453
0.17796
C. 02301
1.40519
0.02308
0.35842
0.04797
0.04054
0.08787
0.80053
3.67417
0.07776
3.37323
1.71551
6.65573
C. 05081
2.01164
1.78248
2.53501
( 1224
1227
1230
1235
1237
12*2
1245
1440
1250
1253
1256
1259
1262
1265
1268
1444
1273
1276
1279
1282
1287
1289
1293
1296
1299
1302
1307
1310
1313
1316
1319
1322
1337
13*0
1343
1346
1368
1373
1376
1411
1*14
1*31
1*34
1437
1447
1450
1*53
1511
1534
1538
1542
1378
1382
1386
1389
1392
1395
1398
1556
1559
1562
1569
1572
1575
1524
1523
1527
1530
1548
1552
1*28
1427
1350
1401
1352
1*29
1405
1*06
< 1*21
( 1*2*
B *
C1 2
E 2
C 7
C1 2
E 3
F 2
B 6
C 6
C' 2
E 2
F 2
B 3
C1 2
E 2
B 6
C' 2
D 3
E 1
E 4
F 3
C 7
D 2
0 5
E 2
E 5
B 6
C' 2
0 3
0 6
E 3
E t
C 3
C 7
A 6
C 7
A 3
C 7
E 5
C 3
E 2
A 3
C 5
E 3
A *
C 5
E 3
E 2
A 6
E 5
E 3
GS 2
CS 6
GS10
GS13
CS16
GS19
GS22
ES 3
CS 7
GS10
CS17
GS20
CS26
M 1
RA 1
TR 1
FR 1
CA 1
SM 1
CU 2
LU 2
BH 2
CO 2
KU 2
WL 2
ES 2
GB 2
CH 2
KN 2
18MY196*
13MY1964
16MY196*
8JN1964
1UN1«4
11JL196*
10JL1964
14JL1964
6J11964
17AU1964
10AU196*
15AU196*
19SE196*
10SE1964
18SE196*
16SE196*
16SE156*
15SE196*
14CC1964
150C196*
14GC1964
12CC1964
13CC1964
NG196*
10MC196*
9N01964
9IMC1964
7N01964
7N0196*
2MR1967
28MR1967
19AP1967
21AP1967
*MY1967
5MY1967
6MY1967
31MY1967
28MY1967
12JN1967
17JN1967
15JN1967
11JL1967
16 JL 1967
15JU967
1SE1967
19SE1967
23SE1967
11CC1967
9MY1967
10 MY 196 7
12HY1967
12MY1967
12MY1967
13MY1967
1*MY1967
30C1S67
*GC1967
5QC1967
50C1967
60C1967
60C1967
20SE1967
19SE1967
20SE1967
24SE1967
30C1967
60C1967
29MY1967
29MY1967
19AP1967
6HY1967
21AP1967
29MY1967
12KY1961
13MY1967
23MY1967
25NY1967
0.01568
C.OC219
C.0533*
C. 17793
C. 278*2
0.00450
C.C1729
0.06265
C.C6166
C. 23265
0.15493
C. 00210
C. 13189
C. 67020
C.OC606
C. 01075
C.C3353
0.01178
C. 03324
C. 01001
0.07475
0.01*15
0.01574
C. 01571
C. 14576
0.50512
O.OC227
C. 01158
0.37020
C.C1047
C. 46656
1.13170
1.06894
C. 68084
C. 15889
C. 05655
C.C1968
C. 02872
O.C2687
1.19989
C. 01794
0.013*6
C. 65*94
0.03428
C. 35387
9.66940
0.0*654
2.12672
C. 98149
C. 02103
C.CC278
C.OC287
C. 01547
C.1633*
C. 32882
C.C2125
0.0*172
C. 031*8
C.C345*
C. 02527
C. 69399
C. 07225
C. 15324
C.C1845
C. 06805
2.08021
0.01272
C. 41598
3.66386
5.61743
0.49338
2.4*591
4.12300
22.93236
1.19324
C. 02965
1.75225
3.62377
Diatoma tenue var. paahyaephala Grun.
Diatoma tenue var. paohyoephala Grunow in: Van Heiu-ck, Syn. Diat. Belgique,
pi. 50, fig. 15. 1881.
201 DITENUVP TOT NO OF STAT1CKS 275
(46910
(46S24
(46909
CH
CH
CH
OC1945
12JA1946
10MY1946
0.67506 )
4.55923 )
0.89381 )
_Q.09107 i
(46?21
(46915
(46523
146S12
CH
CH
Ch
CH
23N01945
20FE1946
22N01946
4P1S47
2.73235 I
1.72993 )
0.12895 )
0.02300 )
1*6908
146914
146920
(46916
CH
CH
CH
19AP19*6
*MY1947
C. 41643 )
6.41767 1
63
-------
(46906 CH HY1947 6.85927
1469?? CH 21AU1947 0.03976 1
146743 EV 20JN1937 0.13274
146764 EV I7JL1937 0.16116
146763 EV 23AU1937 0.02029
146750 EV 24.5C.1937 0.29222
146767 EV 27QC1937 0.14700
146762 EV 18MR1938 0.08822_J
146756 EV 27AP1938 11.61240
(46766 EV 14DE1938 5.32319
( 1227 C' 2 13MV1964 0.10308
1730 F 2 16HY1964 0.08001
1233 B 3 5JN2964 0.25720
143Q B 6 5JN1964 0.30769
1238 D 3 11JN1964 0.02800
1241 F. 2 13JN1964 0.04731
1244 F 1 11JN1964 0.11842
1747 R 3 14JLI9A4 Q.31587
1441 B 6 24JL1964 0.30838
1251 C 7 16JL1964 0. 40553
1254 D 2 1SJL1964 0.26815
1257 E 3 14JL1964 O.JJSJ35
1260 F 3 6JL1964 0.17954
1442 B 6 2AU1964 C. 89730
1264 C' 1 10AU1964 0.15639
1267 D 6 16AU1964 0.05B37
127.0 F 1 10AU1964 0.09803
1273 C' 2 105E1964 0.07527
1276 D 3 18SE1964 0.03353
1279 E 1 16SE1964 0.02356
1282 E 4 16SE1964 0.07756
1285 F 1 15SE1964 0.03494
1288 8 3 150C1964 0.00218
1290 C' 1 160C1964 0.02274
1293 0 2 150C1964 0.06603
1296 D 5 140C1964 0.27541
1299 E 2 12CC1S64 0.04084
1302 E 5 130C1964 0.28342
1305 F 2 110C1964 0.00173
1309 C*" 1 10N01964 0.02251
1312 0 2 8N01964 0.21729
1315 0 5 9ND1964 0.60055
1318 E 2 7N01964 0.29298
1321 E 5 7ND1964 0.74698
1324 F 2 6NQ1964 0.00466
1337 C 3 2MR1967 0.82306
1340 C 7 28MR1967 1.83247
1343 A 6 19AP1967 0.92400
1346 C 7 21AF1967 0.7C100
1368 A 3 4MY1967 0.04084
1372 C 5 5MY1967 0.00355
1375 f 3 7MY1967 0.00241
1409 A 4 23MY1967 0.00595
1412 C 5 31HY1967 0.00421
1415 E 3 28MY1967 0.00225
1437 A 4 13JN1967 0.17881
1435 C 7 13JN1967 0.24311
1446 A 3 11JL1967 0.62619
1449 C 3 16JL1967 1.33746
1452 f 2 14JL1967 3.12939
1504 A 3 28AU1967 0.00247
1517 E 3 1SE1967 0.02749
1536 E 2 24SE1967 0.09271
1S41 F 1 11GC1967 0.03193
1379 GS 3 9MY1967 0.02476
1383 GS 7 10MY1967 0.04544
1366 GS10 12HY1967 0.02011
1389 GS13 12HY1967 0.00516
1393 GS17 13MY1967 0.0191B
1396 GS20 13MY1967 0.00666
1554 GS 1 30C1967 0.33445
1561 f,S 9 40C1967 0.01174
1564 GS12 5CC1967 0.00823
1569 6S17 50C1967 0.00743
1573 GS21 60C1967 0.00336
1547 MS 1 20C1967 0.03194
1528 SB 1 20SE1967 0.01444
1545 WL 1 2CC1967 0.00676
1552 SM 1 60C1967 0.07923
1426 MS 2 29KY1967 2.01575
1417 HO 2 22MY1967 1.01690
1425 RA 2 25MY1967 0.1060S
1402 TR 2 6CY1967 1.55945
( 1353 FR 2 23AP1967 0.07384
( 1403 CA 2 10NY1967 2.09232
( 1407 SM 2 14NY1967 2.57957
( 1421 CH 2 23MY1967 1.75225
( 1424 KN 2 25MY1967 0.38636
C46919 CK 5JN1947 3.05762
(46758 EV 5JN1937 0.79880
(46745 EV 3JL1937 0.06270
(46757 EV 25JL1937 0.10110
(46765 EV 30AU1937 0.04462
46744 EV 6QC1937 4.36988
(46749 EV 12HR1938 C. 23061
46751 EV 30MR1938 1.25056
(46759 EV 19NV1938 C. 47265
1225 C 6 15HY1964 0.68601
1228 0 2 14MY1964 0.03503
1231 E 3 16HY1964 0.01468
1234 B 3 18JM964 0.23336
1236 C* 1 8JN1964 0.07876
1239 D 4 11JM964 0.00812
1242 E 3 13JN1964 0.00300
1245 F 2 11JN1964 C. 01037
124fl B 3 24JL1964 G.063Q6
1249 C 3 BJL1964 0.44813
L L252 S,' 1 16JL1964 1.26918
1255 0 5 15JL1964 C. 20789
1258 f 1 6JL1964 0.53803
1261 B 3 2AU1964 0.01570
1443 B 6 16AU1964 0.13838
1265 C' 2 10AU1964 0.04024
1268 E 2 15AU1964 0.17234
1271 C 7 22SE1964 0.03264
1274 0 1 17SE1964 0.00469
1277 D 4 18SE1964 C. 00620
1280 E 2 16SE1964 0.00681
1283 E 5 16SE1964 0.10420
1286 F 2 15SE1964 0.02189
1445 B 6 140C1964 0.13372
1291 C1 2 160C1964 0.00489
1294 D 3 150C1964 0.42522
1297 0 6 140C1964 1.99916
1300 E 3 130C1964 0.05012
1303 E 6 130C1964 5.48528
1307 B 6 N01964 0.38967
1310 C1 2 10N01964 0.01361
1313 D 3 9NQ1964 C. 62934
1316 D 6 9N01964 0.52886
1319 E 3 7NG1964 0.15448
1322 E 6 7N01964 C. 77982
1325 F 3 6N01964 0.05290
1338 C 3 28MR1967 0.92558
1341 A 3 19AP1967 1.51872
1344 C 3 25AP1967 0.12904
1347 E 2 23AP1967 0.83570
1369 A 4 4MY1967 C. 00373
1373 C 7 5MY1967 0.00856
1376 E 5 6C.Y1967 0.00843
1410 A 6 24HY1967 0.07330
J4J.3 C 7 25NY1967 0.06318
1416 E 5 28MY1967 0.01093
1433 C 3 17JN1967 0.38109
1436 E 2 15JN1967 0.15196
1447 A 4 11JL1967 0.53331
1450 C 5 16JL1967 0.66648
1453 E 3 15JL1967 0.20979
1509 C 5 2SE1967 0.64096
1513 E 5 31AU1967 0.08615
1537 E 3 24SE1967 0.03019
1542 E 3 11GC1967 C. 00509
1380 GS 4 9CY1967 0.64739
1384 GS B 10MY1967 0.02773
1387 GS11 12HY1967 0.05545
1390 GS14 12MY1967 0.02349
1394 GS16 13HY1967 0.15653
1397 GS21 13MY1967 0.14389
1555 GS 2 30C1967 0.17302
1562 GS10 50C1967 0.01727
1565 GS13 50C1967 0.00507
1571 GS1S 6DC1967 0.02868
1574 GS22 60C1967 0.00863
1526 WO 1 20SE1967 0.01707
1529 KM 1 20SE1967 0.02398
1549 CO 1 40C1967 0.02741
1553 SG 1 60C1967 0.08079
1351 HI 2 21AP1967 4.31S63
1418 SH 2 22CY1967 0.01555
1399 Pk 2 5KY1967 3.37323
1400 SB 21 6HY1967 2.B5918
1354 GH 2 25AP1967 C. 27617
1404 Ma 2 10MY1967 0.24136
1419 BU 2 23WY1967 0.45771
1422 GA 2 23MY1967 1.47141
1430 MC 2 12JN1967 0.19738
146907 CH JL1947 C. 73720
(46771 EV 11JN19" 1.93048
(46770 EV 9JL1937 C.029B2
146747 EV 1AU1937 0.01?8p_J
(46760 EV 22SE1937 C.16Z4K
(46748 EV 130C19" fl. 08540
146768 EV 16MR1938 0.13229
14*77? EV 18AP1936 2.98084
(46761 EV 27MV1938 0.33522
.1776 C 7 16HY1964 0.75909
1229 0 5 14HY1964 C. 13533
1732 E 5 16HY1964 O.C1565
1235 C 7 I6JN1964 C. 05084
1717 C» 2 8JN1964 C. 16241
1240 0 6 10JN1964 C.C0460
1243 E 6 13JN1964 C.1C023
1246 F 3 11JN1964 O.OC598
1 1440 » * »-" ">« C-«S213
f250 C 6 10JL1964 0.52210
1753 C» 2 16JL1964 0.23279
1256 E 2 14JL1964 C. 28211
1259 f 2 6JL1964 C.5S804
1262 B 3 17AU1964 0.01680
1263 C 7 15AU1964 C.C1201
1266 0 3 18AU1964 0.18591
1269 E 3 15AU1964 0.04659
1272 C' 1 10SE1964 O.OC821
1275 D 2 17SE1964 C.C3226
1278 D 6 18SE1964 1.74872
1281 E 3 16SE1964 C. 05494
1284 E 6 17SE1964 C. 61322
1287 F 3 15SE1S64 C. 02002
1289 C 7 14QC1964 0.41335
1292 D 1 150C1964 0.01491
1295 D 4 150C1964 C.1C703
1298 E 1 120C1964 0.01346
1301 E 4 130C1«4 C. 27819
1304 F 1 110C1964 C.OC494
1308 C 7 6NC1964 1.06451
1311 D 1 8N01964 C.1C83S
1314 D 4 9N01964 C. 44211
1317 E 1 6N01964 0.26806
1320 E 4 7N01964 0.14476
1323 f 1 6NQ1964 0.00418
1336 C 3 27JA1967 0.01155
1339 C 5 28MR1967 C. 12783
1342 A 4 19AP1967 1.51589
1345 C 5 25AP1967 C. 12280
1348 E 5 23AP1967 C. 15764
1370 A 6 3HY1967 C. 24399
1374 E 2 7MY1967 C. 01494
1408 A 3 23MY1967 C. 06708
1411 C 3 31HV1967 C.OC821
1414 E 2 28HY1967 C. 04366
1431 A 3 12JN1967 C. 99132
1434 C 5 17JN1967 C.C149S
1438 E 5 14JN1967 C. 02542
1448 A 6 10JL1967 C. 90539
1451 C 7 16JL1967 3.85812
1454 E 5 15J11967 f. 16*01
1511 E 2 1SE1967 C. 25478
1534 A « 19SE1967 C. 01551
1538 E 5 23SE1967 0.02762
1543 E 5 100C1967 C. 01437
1381 GS 5 10MY1967 C. 16696
1385 GS 9 10MV1967 C. 03296
1388 GS12 12NV1967 C.C1207
1392 GS16 12HY1967 0.04315
1395 GS19 .13MY1967 C. 32882
1398 GS22 14HY1967 2.12527
1556 C-S 3 30C1967 £.01043
1563 GS11 50C1967 0.00701
1568 GS16 50C1967 C.155B4
1572 ES20 60C1967 C. 00180
1544 HU 1 20C1967 C. 00238
1S27 TR 1 20SE1967 C. 01887
1530 FR 1 24SE1967 0.04000
1551 ES 1 50C1967 C. 19970
1423 KU 2 29MY1967 C. 15668
1427 LU 2 29KV1967 C.5C847
1350 BH 2 19AP1967 C.CC441
1401 CO 2 6CY1967 1.04069
1352 KM 2 21AP1967 9.20804
1429 XL 2 29HV1967 C. 58737
1405 ES 2 12HY1967 C. 54180
1420 IH 2 23MV1967 1.40483
1423 hA 2 Z5HY1961 C. 89068
Diatoma vulgaris Bory
Diatoma vulgare Bory, Diet. Class,
Hist. Nat., 5:461. 1824.
64
-------
202 D1VUIGAR TCT KC CF STATIONS 73
146921 CH 23N01945 0.03816 ) CitSl? CH 12JA1946 0.01137 ) (4A01S cu jneciOi. r rrc*c I
(46914 CH 154P1946 0.00961
(46920 CH 20CE1946 0.00863
(46916 CH 4MY1947 0.00136
(46771 EV 11JN1937 0.01426
(46764 EV 17JL1937 0.05641
(46750 EV 24SE1937 0.00471
(46761 EV 27MY1938 0.00273
( 1304 F 1 '110C1964 0.00247
(
_J
1371 C 3 4WnSb7 0.00462
1512 A 3 18SE1967 0.02300
1387 6S11 12MY1967 O.OC396
1-K* GS 1 3QCL967 0.01779
1564 GS12 50C1967 0.00494
1571 GS19 60C1967 0.00117
1575 GS28 60C1967 0.00129
1524 HI 1 20SE1967 0.02189
1522 BH 1 18SE1967 0.00912
114
-------
Diploneis domblittensis (Grun.) Cleve
Naviaula expleta v^r. domblittensis Grunow in: Mojsisovics and Neumayer,
Beitr. Palkontol. Osterreich-Ungarns, Bd. 2, Heft 4, p. 156, pi. 30,
fig. 60. 1882.
Diploneis domblittensis (Grun.) Cleve, K. Svenska Vet.-Akad. Handl.,
Ny Foljd, 26(2):91, pi. 2, fig. 2. 1894.
207 OPODKBLO TCT NO OF STATIONS 1
1 1389 GS13 12tii5AT_ O.OC258 1
Diploneis elliptioa (Kutz.) Cleve
Naviaula elliptioa Kutzing, Bacill., p. 98, pi. 30, fig. 55. 1844.
Diploneis elliptioa (Kutz.) Cleve, Acta Soc. Fauna Fl. Fennica, 8(2):42.
1891.
208 DPELIIPT TCT NC DF STATIONS
146909
1559
1403
OS 7
C* 2
HR1947 0.00455 1 I46S16
40C1967
10HY1967
C.00350 )
0.01308 1
1565
4MY1947 C.COC34 I 146907
50C1967 0.01014 I I 1567
JL1947
SOC1967
Q.O_Cl
-------
211 DPP4RH4 TCI NO OF STATIONS
20
Diploneis subovalis Cleve
Diploneis subovalis Cleve, K. Svenska Vet.-Akad. Handl., Ny Folid
26(2):96, pi. 1, fig. 27. 1894.
146910
l*69?4
(46906
1 1380
( 1564
1 1569
1 1546
CH
CH
CH
GS13
GS12
GS17
LU 1
OC1945
10MY1946
MY1947
12MY1967
5CC1967
50C1967
2DC1967
0.00109
0.00141 ]
0.00066
. 0.00516
0.00165
. 0.00149
0.00500
(46S17
146S20
(46?22
l_L3_9Jl
( 1565
( 1574
1 1354
CH
CH
CH
GS14
GS13
GS22
GH i
12JA1946
20DEK94A
21AU1947
12HY1967
50C1967
60C1967
25AP1967
0.00083 )
C. 00031 I
0.00145 )
0.01174 \
0.03042 1
0.00575 1
0.00173 )
146914
( 1365
1 1567
( 1575
(
CH
GS 9
EMS
19AP1946
10MY1961
13MV1967
50C1967
C. 00107 )
C*CC235 )
C«0027^ 1
C«OC63S )
212 DPSUBQVA TOT NO OF STATIONS
146747
0.00248 ) ( 1388
GS12
12KY1967 0.01207 I ( 1565
GS13
SOC1967 C.02028 >
Species
sedis
Diploneis sp. #1.
213 DPSPECOA TOT NO OF STATIONS
I 1567
GS15
50C1967 0.00159 I I 1568
50C1967 0.00144 I
Diplon&is sp. #2.
214 DPSPECOB TCT NO OF STATIONS
I 1545 NL 1
2CC1967 0.00676 ) I 1350 BH 2
19AP1967 0.00220
Genus Epithemia Br^b.
de Br£bisson and Godey, Consid. Diat., p. 16. 1838.
Members of the genus Epithemia are particularly adapted for epiphytic
growth, usually on the coarser attached algae or on aquatic higher plants.
Only occasional isolated specimens appear in our collections.
Epithemia andrewsii nom. nov.
Epithemia irregulaxis Andrews, U. S. Geol. Surv. Prof. Paper 523A:22,
pi. 3, fig. 22-25. 1966. (non Fritsch and Rich 1925).
215 EP4NDB6W TCT NO OF STATIONS
12J41946 0.00028 I I
160973
CH
1676 0.02362 1 (46917
Epithemia argus (Ehr.) Kiltz.
Eunotia argus Ehrenberg, Ber. Akad. Wiss. Berlin, 1841:125, pi. 2(4),
fig. 7. 1843.
Epithemia argus (Ehr.) Kutzing, Bacill., p. 35, pi. 29, figs. 55-56. 1844,
Coll: 1092.
67
-------
Epithemia argus var. alpestris (Win. Smith) Grun.
Epithemia alpestris Wm. Smith, Syn. British Diat., Vol. 1, p. 13, pi. 1,
fig. 7. 1853.
Epithemia argus var. alpestris (Wm. Smith) Grunow, Verh. Zool.-Bot. Ges.
Wien, 12:329, pi. 3, fig. 28. 1862.
216 EPARGUVA TOT NO OF STATIONS 1
» 3541 CH
1FE1881 O.OC978 ) <
Epithemia argus var. longioornis (Ehr.) Grun.
Epithemia longioornis Ehrenberg ex Pritchard, Hist. Infus., p. 760, pi. 15,
figs. 6-9. 1852.
Epithemia argus var. longioornis (Ehr.) Grunow, Verh. Zool.-Bot. Ges.
Wien, 12:329. 1862.
Coll: 1092.
intermedia Fricke
Epithemia intermedia Fricke in: A. Schmidt, Atlas Diat., pi. 249, figs,
14-18. 1904.
217 EPINTERM TOT NC OF STATIONS
(60973 CH
« 1552 SM 1
1876
60C196 7
0.1-4171 I
0.00660 1
146906
< 1401
CH
MO 2
C.00066 ) ( 1567 GS15
6HV1967 0.00588 ) t
50C1967 C.OC155 )
Epithemia smithii Carruthers
Epithemia probosoidea Wm. Smith, Syn. British Diat., Vol. 1, p. 13, pi. 1,
fig. 8. 1853. (non Kutz. 1844).
Epithemia smithii Carruthers in: Gray, Handb. British Freshw. Weeds, p. 76.
1864.
I6CS73
(46763
CH
EV
1876
23AU1937
0.02362 )
0.02029 t
( 3541
< 1285
CH
f I
1FE1881
15SE1964
C. 00978 )
0.01165 1
(46924
I 1574
CH
GS22
1OHY1946
6OC1967
C.OC071 |
C. 00286 )
'219 EPSOREXO TOT
1 1389
1 1531
GS13
GH 1
NO CF STATIONS 6
12MY1967
25SE1967
0.00258 )
0.00845 )
( 1396
1 1545
GS20
13MY1S67
20C1967
C. 00074 1
0.00676 )
( 15 T4
1 1550
ES22
6CC1S61
SOC1967
C.CC288 1
0.03717 )
Epithemia turgida (Ehr.) Kutz.
Navieula turgida Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1830:64. 1832.
Epithemia turgida (Ehr.) Kutzing, Bacill., p. 34, pi. 5, fig. 14. 1844.
EPTURCID TPT KC OF STATICNS
CH
1FE1881 0.03913 ) (46753
15SE1937 C.02177 I I 1279
16SE1964 C.OC393 I
I 1555
I 1S74
30C1967 0.00353 ) ( 1565
6CC1967 0.01151 I I 1575
GS13
GS28
50C1967 0.0,0507 ) ( 1567
0.00129 I ( 1352
GS15
"W 2
50C1967 0.00318 I
21AP1967 C.OC859 )
68
-------
Epithemia zebra (Ehr.) Kutz.
Navioula zebra Ehrenberg^ Abh. Akad. Wiss. Berlin, 1833:262. 1835.
Epithemia zebra (Ehr.) Kutzing, Bacill., p. 34, pi. 5, fig. 7(6)a-c. 1844.
222 EPZE6RA TCT NC Of STATIONS
(609T3 CH
KW 1
1876 0.04724 ) ( 3541
20SE1967 0.02396 ) <
IFEiaei 0.02935 I ( 1574
60C1967 C.CC288 I
Epitherrria zebra var. poroellus (Kutz.) Grun.
EpithemLa povoellus Kutzing, Bacill., p. 34, pi. 5, figs. 18-19. 1844.
Epithemia zebra var. poroellus (Kutz.) Grunow, Verb. Zool.-Bot. Ges.
Wien, 12:328, pi. 6, figs. 3-4. 1862.
FP7FRBUP TCI NO OF STATIONS
1876 0.02362 1
I467S7
I 1550
25JL1937 fl.00481 I ( 1369
4HY196T C.CC373
I 1545
20C1S67 0.00676 )
5CC1967 0.01239 I I 1401
6MY1967 C.01176 )
Genus Euooeconeis Cleve
Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd, 27(3):173. 1895.
Members >of the genus Euoooooneis are most abundant in benthic communi-
ties. Only occasional specimens are noted in our collections.
Euooooone'Ls flexella (Kutz.) Hust.
Cymbella? flexella Kutzing, Bacill., p. 80, pi. 4, fig. 14. 1844.
Euooooone-Ls flexella (Kutz.) Hustedt -in; Pascher, Sussw.-Fl. Mitteleuropas,
Heft 10, Aufl. 2, p. 193, fig. 270. 1930.
J73 EUFLEXEL TCT KC tf STATIONS
146924
10PV1946 C.OC071 I
Jtt
4HY1947 0.02579 ) I469C6
MY194T C.CCC66 1
(46919
1285
1368
1392
1565
1574
1404
CH
F 1
GS12
GS16
GS13
GS22
NO 2
5JN1947
15SE1964
12HY1S67
12MY1S67
50C1967
60C1967
10KY1967
0.02276
0.02912
0.04223
0.00306
0.01014
C. 00575
0.03811
I 1258
I 1266
( 1389
( 1393
( 1567
( 155C
(
F 1
F 2
GS13
GS17
GS15
MR 1
6JL1964
15SE1964
12KY1967
13WY1967
5DC1967
5GC1967
0.00472 )
C.01C95 )
C. 01031 )
C.CC274 t
0.00794 I
C. 02478 1
( 1279
( 1367
( 1390
( 1394
( 1569
1 1403
E 1
ES11
GS14
GS16
GS17
CA 2
16SE1964
12MY1967
12HY1967
13KY1967
50C1967
10HV1967
0.00393
C.OC396
0.01174
C.OC172
C.OC297
C. 05231
EuooQcone-is flexella var. alpestr-is (Brun) Hust.
Aohnanthes flexella var. alpestris Brun, Diat0 Alpes et Jura, p. 30,
fig. 26. 1880.
Euooooone-Ls flexella var. alpestris (Brun) Hustedt in'. Pascher, Sussw.-Fl.
Mitteleuropas, Heftu10, Aufl. 2, p. 193, fig. 271. 1930.
224 EUFLEUVA TCI
1 1565
r 1426
1 1405
GS13
MS 2
ES 2
NO OF STATIONS 8
.5CC1967
29MY1967
12HYH67
0.03042 I
0.01050 )
C. 01935 )
( 1551
I 1417
I 1407
ES 1
HO 2
Sf 2
5CC1967
2ZMY1967
14KY1967
C. 00799 )
0.01122 I
0.01194 1
( 1550
( 1350
(
tf. 1
BH 2
50C1967 C. 06195 )
19AP1967 C. 00661 )
EuooGooneis lapponioa Hust.
Euoooooneis lapponioa Hustedt, Naturw. Untersuch. Sarekgebirges Schwedisch-
Lappland, Bd. 3, Bot. Heft 6, p. 549, pi. 17, figs. 8-9. 1924.
69
-------
225 EULAPPCN TOT NC OF STATIONS
146757
25JL1S37 0.00481 )
Euoooooneis lapponica var. ninckei (Reim.) Comb. nov.
Aahnanthes ninokei Guermeur and Manguin, Osterreichische Bot. Zeitschr.,
100(4/5):541, pi. 1, figs. 10-11. 1953.
Aehnanthes lapponica var. ninokei (Guer. and Mang.) Reimer ini Patrick
and Reimer, Acad. Nat. Sci. Philadelphia Monogr., 13:259, pi. 16, figs.
29-30. 1966.
226 EULAPPVN TCT NO CF STATIONS 26
(16758
(4671;?
1 1285
I 1565
1574
1579
1426
140?
1407
EV
FV
F 1
GS13
GS22
KU 1
MS 2
CA 2
SM 2
5JN1937
15SE1937
15SE1964
5nr. 19A7
6CC1967
20SF1967
25HY1967
10MV1967
14MY1967
0.00712
0.02177
0.00582
0.01014
C. 02013
0.01199
0.01050
O.C5231
0.00597
146757
[46762
( 1304
1 1567
I 1575
[ 1552
( 1350
( 14C4
( 1421
EV
ev
F 1
GS15
GS28
SH 1
BH 2
HO 2
CH 2
25JL1937
18MR1938
11CC1964
5DC1967
60C1S67
6QC1S67
19AP1967
10WV1967
23FY1967
0.004B1
0.04411
0.00247
0.00159
0.00129
0.00660
0.00220
0. 05081
0.01735
(46763
1270
13?4
1572
1527
1550
1400
1405
EV
f 1
GS18
GS20
TR 1
PR 1
SB 2
ES 2
23AU1937 C. 08117 )
10AU1964 C_.0(J2J_2_J
13KV1967 C.OC172 )
60C1567 0.00090 )
20SE1967 C.CC629 )
5GC1967 C. 18585 )
6HV1967 C.OC596 )
12MY1967 C.C129C I
Genus Eunotia Ehr.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1837:44. 1837.
Members of the genus Eunotia find their primary habitat in benthic
communities. The majority of species are found only in waters of relatively
low pH and total dissolved solids. The specimens taken in the Lake Michigan
plankton are undoubtedly derived from either benthic habitats in the lake or,
more likely, from streams entering the lake,
Eunotia OPCUS Ehr.
Eunotia avous Ehrenberg, Ber. Akad. Wiss. Berlin, 1837:45. 1837.
227 ENARCUS TOT NC OF STATIONS 1
I 1566GS135001967O.CC5C7 ) I
Eunotia areus var. bidens Grun.
Eunotia arsus var. bidens Grunow int Van Heurck, Syn. Diat. Belgique,
pi. 34, fig. 7. 1881.
229 ENARCUVB TPT NC CF STATIONS
( 1388 GS12
12HY1967 0.00603 > ( 1524 Ml 1
20SE1967 0.02189 ) ( 14C4
10KY1967 €.02541 1
Eunotia arous var. fallax Hust.
Eunotia arous var. fallax Hustedt in: Pascher, Sussw.-Fl. Mitteleuropas,
Heft 10, Aufl. 2, p. 175, fig. 219. 1930.
228 ENARCUVF TCT NC OF STATIONS 1
146768 EV
16PR193B O.C147C I I
70
-------
Eunotia aurvata (Kiitz.) Lagerst.
Synedra lunaris Ehrenberg, Abh. Akad. Wiss. Berlin, 1831:87. 1832.
Exilavia curvata Kutzing, Alg. Dec., No. 112. 1834.
Eunotia lunaris (Ehr.) Grunow -in: Van Heurck, Syn. Diat. Belgique, pi. 35,
figs. 3-4. 1881. (non de BrSbisson^ 1864).
Eunotia curvata (Kutz.) Lagerstedt, Ofv. K. Svenska Vet.-Akad. Forh.,
41(2):61. 1884.
230 ENCURVAT IOT NO OF STATIONS
( 1550 KR 1 50C1967 0.01239 > ( U27 LU 2 2SCV1967 "o. 01211 1
Eunotia diodon Ehr.
Eunotia diodon Ehrenberg, Ber. Akad. Wiss. Berlin, 1837:45. 1837.
231 ENDIODON TCT NO OF STATIONS I
~C~1404 BQ 2
Eunotia exigua (Br^b.) Rabh.
Himantidium exiguwn de Bre"bisson ex Kutzing, Sp. Alg., p. 8. 1849.
Eunotia exigua (Bre"b.) Rabenhorst, Fl. Europaea Alg., Sect. 1, p. 73.
1864.
Coll: 1404.
Eunotia flexuosa Bre'b.
Eunotia flexuosa de Br^bisson ex Kutzing, Sp. Alga,p. 6. 1849.
232 ENFLEXUG TOT NO OF STATIONS 1
( 157
-------
Eunotia peotinalis (0. F. Mull.) Rabh.
Conferva peotinalis 0. F. Muller, Nova Octa Acad. Sci. Petropolitane,
3(Hist.):91, pi. 1, figs. 4-7. 1788.
Eunotia peotinalis (0. F. Mull.) Rabenhorst, Fl. Europaea Alg., Sect. 1,
p. 73. 1864.
Coll: 1404.
Eunotia praerupta Ehr.
Eunotia praerupta Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:414. 1843,
235 ENPRAERU TCI NO OF STATIONS 4
| 1304 Tl 110Cl96 7 l«lll"it,4 n.nn??s I < ;275 0 2 17SF1964 0.00645 I I 1779 E 1 16SE1964 'C.01178 I
72
-------
1284 E 6 17SE1964 0.00318
1304 F 1 11CC.1964 0.00247
1538 E 5 23SE1967 0.00552
13.9D GS14 17MY1S67 0.005B7
1395 GS19 13Mn967 0.00117
L1398 GS7J !4MY19fc7 O.O0304
1569 GS17 5CC1967 0.00149
1573 GS21 6CC1967 0.00672
1544 HU 1 2CC1967 0.00477
L1521 SH 1 1BSE1967 C.OC577
1531 GH 1 25SE1967 0.01691
1550 MR 1 5DC1967 1.98241
1426 US 2 29MY1967 0.02100
1350 BH 2 19AP1967 0.63435
1354 GH 2 25AP1967 0.00518
1406 GB 2 13MY1967 0.00270
1285 f 1 I5ieiVt>4 U. ULf,!
1342 A 4 19AP1967 0.00361
1388 GS12 12HV1967 0.01207
1392 GS16 I7MV1967 0.01233
1396 GS20 13MY1967 0.00592
LJi65 _.. GS13 5HC1S67 C. 07606
1570 GS18 50C1967 0.00992
1574 GS22 6GC1967 C. 02013
1546 LU 1 20C1967 C. 02001
1526 HO 1 2QSE1967 0.01138
1545 WL 1 20C1967 0.04730
1553 SG 1 60C1967 0.03672
1351 HI 2 21AP1967 G. 00310
1401 HO 2 SMY1967 0.01176
14C4 MO 2 10KY1967 C. 05081
1292 D 1 150C1964 O.OC373 1
1411 c 3 31HY1967 C.CC410 1
1389 GS13 12HY1967 C. 00258 )
1394 C-S18 13MY1967 C mm )
1397 CS21 13HY1967 C.CC065 )
1567 CS15 5CC1961 C 00159 1
1572 GS20 60C1967 C. 01352 I
1575 CS28 60C1967 C OC516 I
1520 hO 1 18SE1967 C. 26875 )
1527 1R 1 20SE1967 C.OC629 )
1552 SM 1 6CC1967 C. 02641 )
1428 PU 2 29MY1967 C.OC603 )
1417 I-C 2 22MY1967 0.04486 )
1352 KM 2 21AP1967 C. 00859 }
1407 SM 2 14MY1967 C. 02388 1
Fragilaria brevistriata var. capitata H^rib.
Fragilap-i-a brevistriata var. inflata H^ribaud, Foss. Diat. Auvergne,
vol. 2, p. 92, pi. 12, fig. 18. 1903.
The valves of this entity are lanceolate with subcapitate to capitate
apices. All other features are as in the nominate variety.
Grunow's prior figure of F. bre'toistriata var. subcapitata (in Van Heurck
1881) is apparently without standing because of his failure to either figure
or describe the nominate variety until 1885 (for discussion see Patrick and
Reimer 1966).
Coll: 827.
Frag-ilca>ia bvev-istviata var. inflata (Pant.) Hust.
Frag-Hap-ia inflata Pantocsek, Res. Wiss. Erforsh. Balatonsees, vol. 2,
p. 79, pi. 9, figs. 219-221. 1902.
FTagilaria brevistriata var. inflata (Pant.) Hustedt in'. Pascher, Sussw.-Fl.
Mitteleuropas, Heft 10, Aufl. 2, p. 145, fig. 152. 1930.
The valves of this entity are elliptic-lanceolate with rostrate to sub-
capitate ends. Other features as in the nominate variety.
23B FRB8EVVI TCT HP Of !»1 a I I
46764
1532
1565
1522
1549
1428
14D4
EV
A 3
GS13
BH 1
MO I
MU 2
MO 1
17JL1927
18SE1967
5DC1967
18SE1967
40C1967
29MY1967
10MY1967
0.01612
0.00329
C. 07099
0.00182
0.01370
0.00603
0.01270
146767
1396
1569
1526
1552
1426
<
EV
GS20
GS17
MO 1
SM 1
MS 2
27CC1S37
13MY1967
5CC1967
20SE1967
60C1967
29MY1967
0.00387
0.00370
C. 00149
0.00569
C.01321
C. 01050
I 1260
( 1398
1 1571
I 1530
< 1550
I 1350
F 3
CS22
GS19
FR 1
PR 1
BH 2
6JL1964
14MY1967
«OC1?67
24SE1967
50C1967
19AP1967
C.CC191 )
C. 00304 )
C.CC117 1
C. 01000 I
C.C4956 )
C. 01542 )
Fragilavia capueina Desm.
Fragilaria oapuoina Desmazieres,
Fasc. 10, no. 453. 1825.
Plant. Crypt. Nord France, 1st. ed.,
73
-------
Cells rectangular, in life united into closely appressed, band-shaped
colonies by the valve faces. Specimens from Lake Michigan 15-80y long,
2-5y broad. Valves linear with bluntly rounded, usually more or less cuneate
apices. Striae perpendicular to the midline of the valve throughout its
length, 14-18 in lOy, without visible substructure. Pseudoraphe linear,
narrow, at the center of the valve expanded into a transverse fascia some-
times extending to the margin of the valve. In specimens in which the fascia
does not reach the margin of the valve it is irregularly bordered by in-
distinct striae.
In Lake Michigan this entity is common in collections from inshore areas,
and occasional populations are found in collections from the open lake.
Published reports indicate that it reaches its greatest abundance in meso-
trophic to eutrophic lakes.
239 fp.cipuci ten NO qp STATIONS 316
_
_l
60973 CM 1876 0.23618 1
( 3507 CH 19FE1681 0.05660 1
46Q08 r.H CE1945 0.65458 )
(46914 CH 19AP1546 0.07688 1
(16970 CH 200E1946 0.86114 )
(46912 CH AP1947 2.74807 1
I4AQ19 r.H 5.IN1947 0.02124 >
(46922 CH 21AU1947 1.4805? 1
(4A743 EV 20JN1937 2.15809 J
(46764 EV 17JL1937 10.60435 )
(4676"? EV 73AU1937 0.60877 1
(46752 EV 15SE1927 0.82717 1
(46744 EV fiflr.1937 1.91182 )
146749 6V 12HR1938 0.40053 1
146751 EV 30MR1938 0.02233 )
146759 6V 19HY1938 0.01013 I
( 1723 S 3 18MY1964 0.00938 )
1226 C 7 16HY1964 0.45282 1
1779 D 5 14MY1964 0.11630 >
1233 B 3 5JN2964 0.04048 >
1439 B 6 5JN1964 0.1C589 )
1238 D 3 11JN1964 0.09000 1
1241 F 2 13JN1964 0.51749 )
1244 F 1 11JN1964 0.84427 )
1247 B 3 _ 14JL1964 0.02561 1
1441 B 6 24JL1964 0.12996 )
1251 C 7 16JL1964 0.8B07C 1
1254 0 2 15JL1964 0.10151 1
1257 E 3 14JL1964 0.00957 I
1260 F 3 6JL1964 0.24830 )
1442 B 6 2AU1964 0.15353 1
1264 C' 1 10AU1964 0.09654 )
1267 D 6 18AU1964 0.03891 1
1270 F 1 10AU1964 0.08713 I
1272 C« 1 10SE1964 0.30374 )
1275 0 2 17SE1964 0.07096 )
1278 0 6 18SE1964 0.10377 )
1281 E 3 16SE1964 0.00785 )
1284 E 6 17SE1S64 3.78102 )
1287 F 3 15SE1964 0.01501 1
1289 C 7 140C1964 0.13632 1
1292 D 1 150C1964 0.52177 )
1295 0 4 150C1964 0.24379 I
1298 E 1 120X1964 0.32044 1
1301 E 4 130C1964 0.02208 !
1304 F 1 I10C1964 0.01235 )
1307 B 6 N01964 0.06494 )
1310 C1 2 10N01964 0.20635 )
1313 D 3 9N01964 0.02703 )
1316 D 6 9N01964 0.24176 I
1319 E 3 7ND1964 0.02356 )
1322 E 6 7N01964 0.46656 )
1325 F 3 6ND1964 0-.07053 )
1338 C 3 28MR1967 0.07405 )
1341 A 3 19AP1967 0.05424 )
1344 C 3 25AP1967 0.02316 1
1347 E 2 23AP1967 0.00976 )
1369 A 4 4MY1967 0.00745 )
1373 C 7 5MY1967 0.00570 )
1376 E 5 6MY1967 0.10962 1
1410 A 6 24MY1S67 0.19734 1
1413 C 7 25HY1967 0.01895 1
1416 E 5 28M><19&7 0.03716 \
1433 C 3 17JN1967 0.11626 )
1436 E 2 15JN1967 0.00724 )
1446 A 3 11JL1967 0.31065 1
1449 C 3 16JL1967 0.15667 )
1452 E 2 14JL1S67 4.47056 I
1504 A 3 28AU1967 0.12344 )
( 3540 CH 11MY187S 0.04659
(46910 CH CC1945 0.04606
(46917 CH 12JA1946 C. 03022
(46S24 CH 10HY1946 0.55026
146905 CH JA1947 4.30200
(46S16 CH 4KY1947 0.01221
146907 CH JL1947 1.02568
(46758 EV 5JN1937 0.22110
(46745 EV 3JL1937 7.60711
(46757 EV 25JL1937 2.29166
(46765 fV 30AU1937 0.01115
(46760 EV 22SE1937 1.10296
I4674B EV 13QC1937 C. 49103
(46768 EV 16HR1936 0.58796
(46772 EV 18AP193B 0.03549
(46761 EV 27MY1938 C. 19078
( 1224 6 4 18MY1964 0.00392
1227 C1 1 13fY1964 0.09102
1 1230 E 2 16HY1964 0.48896
1234 B 3 18JM964 0.21649
1236 C1 1 8JN1964 C. 49009
1239 D 4 UJN1964 C. 20308
1242 E 3 I3JN1964 O.C0599
1245 F 2 11JN1964 0.32501
1248 B 3 24JL1964 C. 00788
1249 C 3 8JL1964 0.38023
1252 C' 1 16JL1964 0.35425
1255 D 5 15JL1964 C. 01797
1258 F 1 6JL1964 1.65184
1261 B 3 2AU1964 0.02747
1443 B 6 16AU1964 0.01581
1265 C* 2 10AU1964 0.06483
1268 t 1 15AU1964 0.03556
1444 B 6 19SE1964 0.00303
1273 C' 2 10SE1964 0.01075
1276 0 3 1BSE1964 0.04470
1279 E 1 16SE1964 C. 10995
1282 E 4 16SE1964 0.02216
1285 F 1 15SE1964 0.04659
1288 B 3 150C1964 1.14284
1290 C- 1 160C1964 2.91832
1293 0 2 150C1964 0.01415
1296 D 5 140C1964 0.03147
1299 E 2 120C1964 0.43984
1302 E 5 130C1964 1.41712
1305 F 2 110C1964 0.02588
1308 C 7 6N01964 C. 11558
1311 0 1 8N01964 C. 22703
1314 0 4 9N01964 0.03732
1317 E 1 6NC1964 C. 04021
1320 E 4 7N01964 0.05171
1323 F 1 6MC1964 0.012S4
1336 C 3 27JA1967 0.00578
1339 C 5 28HR1967 0.00624
1342 A 4 19AP1967 0.00361
1345 C 5 25AP1967 0.00390
1348 E 5 23AP1967 0.04249
1370 A 6 3KY1967 0.64449
1374 £ 2 7HY1967 C. 02092
1408 A 3 23KY1967 0.08049
1411 C 3 31HY1967 0.03282
1414 E 2 28HY1967 0.00336
1431 A 3 12JN1967 0.12359
1434 C 5 17JN1967 €.00598
1437 E 3 15JN1967 0.00538
1447 A 4 11JL1967 '0.65494
1450 C 5 16JL1967 0.00190
1453 E 3 15JL1967 0.01264
1506 A 6 29AU1967 2.74625 1
1 3541 CH 1FE1881 0.01956
(46921 CH 23NG1945 C. 04656
46915 CH 20FE1946 0.26177
(46923 CH 22NC194C 1.77689
46909 CH MR1947 0.09562
(46906 CH HY1947 C. 47454
(46913 CH 6AU1947 5.10407
(46771 EV 11JM937 C. 13314
46770 EV 9JL1937 4.5C859
(46747 EV 1AU1937 3.46560
46769 EV 7SE1937 C. 08684
46750 EV 24SE1937 1.4£1«7
(46767 EV 270C1937 0.43325
46762 EV 18MR193B C. 02206
(46756 EV 27AP1938 C. 01343
46766 EV 140E1938 2.94677
1225 C 6 15MY1964 C. 14112
1228 D 2 14MY1964 C. 12262
1232 E 5 16HY1964 0.07826
1235 C 7 16JN1964 C. 72302
1237 C< 2 8JN1964 C. 16499
1240 D 6 10JN1964 C.C8130
1243 E 6 13JN1964 C.C7517
1246 F 3 11JN1964 C. 05379
1440 B 6 11JL1964 C. 27269
1250 C 6 10JL1964 C. 37410
12 S3 C' 2 16JL1964 C. 08673
1256 E 2 14JL1S64 C. 12823
1259 F 2 6JL1964 C. 43381
1262 B 3 17AU1964 C. 00840
1263 C 7 15AU1964 C.OC801
1266 D 3 18AU1964 C. 01052
1269 E 3 15AU1964 C.CC822
1271 C 7 22SE1964 C. 61370
1274 0 1 17SE1964 C. 03284
1277 D 4 16SE1964 C. 03718
1280 E 2 16SE1964 0.00681
1283 E 5 16SE1964 C. 07969
1286 F 2 15SE1964 0.04378
1445 B 6 140C1964 C. 05871
1291 C- 2 160C1964 1.02735
1294 D 3 150C1964 0.11867
1297 D 6 140C1964 0.03998
1300 E 3 130C1964 C. 12529
1303 E 6 13CC1964 1.95903
1306 F 3 1 IOC 1964 C. 01109
1309 C* 1 10N01964 C. 28139
1312 D 2 8NC1964 C. 43458
1315 D 5 9N01964 C.C273C
1318 E 2 7N01964 O.C3995
1321 E 5 7NG19C4 C. 44691
1324 F 2 6NQ1964 C.C3028
1337 C 3 2MK1967 C. 41153
1340 C 7 28MR1967 C.2C361
1343 A t K31P14A7 C. 15840
1346 C 7 21AP1967 0.11750
1368 A 3 4MV1967 C.C6598
1371 C 3 4MV1967 C. 02539
1375 E 3 7MY1967 C. 00241
1*09 A 4 23MY1967 C.CC298
1*12 C 5 31MY1967 C.OC847
1*15 E 3 28HV1967 C.CC450
1^32 A 4 13JN1S67 C.C1533
1*35 C 7 13JM967 3.31513
1438 E 5 14.IN1«67 C.148B7
1**8 * t 10JL1967 4.85234
1*51 c 7 16JL1967 14.74351
1«* E 5 15JU967 2.8C056
1509 C 5 2SE1967 0.01514
74
-------
_i
1510 C 7 29AU1967 0.11065
1513 E 5 31W11967 1.18577
1537 E 3 24
-------
1
1
1303 E 6 130C1964 0.02239
mo C" 7 10ND1964 0.00227
1317 E 1 6NQ1964 0.00766
1324 F i
6N01964 O.OC699
141* E 2 28MY1967 0.00336
1535 C 7 20SE1967 0.00322
IS43 F 3 11QC1967 0.01017
1563 GS11 50C1967 0.00234
1522 BH 1
1548 CA 1
18SE1967 0.00132
30C1967 G.050BB
1428 MU 2 29MY1967 0.02109
1350 BH 2 19AP1967 0.11674
1429 HL 2 29MY1967 0.19110
1406 GB 2 13MY1967 0.02696
1305 >• t 11ULIS64 0.00173 1 [ 1308 C 7 6N01964 c'°j!5?I
1312_ D 2 8N01964 0.00621 ) 1316 D 6 9N01964 C.0075_|_
1318 E 2 7N01964 C. 00380
1322 E 6 7ND1964 0.02999
1337 C 3 2MR1967 0.00294
1343 A 6 19AP1967 0.00208
1448 A 6 10JL1967 0.01061
1532 A 3 18SE1967 0.00329
1536 E 2 24SE1967 0.00818
1380 G$ 4 9KY1967 C. 00504
1569 GS17 50C1967 0.00149
1573 GS21 6CC1967 0.00112
1526 HO 1 20SE1967 0.01138
1552 SH 1 6CC1967 0.03962
1417 HO 2 22NY1967 0.01122
1352 KM 2 21AP1967 0.24910 1
(
1320 E 4 7N01964 u-uu*i"
1323 F 1 6N0196j4__CiS_E557_
1339 C 5 28HR1967 u. 00312
1375 E 3 7MV1967 C.OC241_
1454 E 5 15JL1967 C.OCbOO
1533 A 4 19SF1967 0.00928
1541 E 2 110C1967 C.OUSi^
1554 GS 1 30C1967 C.OJ067
1571 GS19 6GC1967 O.OU41U
1547 CS 1 jnr.1967 C.C3992 I
( 1529 KN 1 20SE1967 0.01199
( 1553 SG 1 £DC1967 C.OC734
1 1418 SH 2 22HY1967 C. 07776 )
( 1354 EH 2 25AP1967 C.OC345 )
1407 SM 2 14MY1967 0.04180 1 ( 1349 Cl 2 19AP196/ C.OU3b9 )
— __ •
Fragi-'iaria capuci-na var. mesotepta Rabh.
Fvagi,lar-ia oapuci-na var. mesolepta Babenhorst, Fl. Europaea Alg., Sect. ls
p. 118. 1864.
Valves constricted at the central area, either linear or slightly ex-
panded between the central area and the ends. The central area is usually a
hyaline fascia. Ends of the valves rostrate to subcapitate. Size range and
ornamentation of the valve the same as in the nominate variety.
The distribution and abundance of this entity in Lake Michigan is essen-
tially the same as for the nominate variety.
241 FRCAPUVM TCT NO OF STATIONS 176
1 3540 CH 11WY1B79 0.02796
146921 CH 23N01945 0.00453
146914 CH 19AP1946 0.00214
146920 CH 200E1946 0.00092
146916 CH 4HY1947 0.00204
(46907 CH JL1947 0.00444
146758 EV 5JN1937 0.07489
(46745 EV 3JL1937 0.06270
(46757 EV 25JL1937 0.24553
(46748 EV 130C1937 0.10675
46756 EV 27AP1S3B 0.00672
1226 C 7 16HY1964 0.01142
1230 E 2 16MY1964 0.01185
1234 B 3 16JN1964 O.OC562
1237 C' 2 6JN1964 0.00516
1243 E 6 13JN1964 0.01253
1246 F 3 11JN1964 0.00598
1252 C' 1 16JL1964 C.OC279
155fl F I 6.IL1964 0.03540
1262 B 3 17AU1964 0.00210
1268 E 2 15AU1964 0.00274
1283 E 5 16SE1964 0.00613
1289 C 7 140C1964 0.00440
1292 0 1 150C1964 0.02609
1299 E 2 120C1?64 0.09739
1302 E 5 130C1964 0.02429
1305 F 2 1 ICC 1964 0.00863
1308 C 7 6ND1964 0.00912
1311 D 1 8ND1964 0.02064
1316 D 6 9N01964 0.00756
13?1 f 5 7ND1964 0.01915
1337 C 3 2MR1567 0.00147
1343 A 6 19AP1967 0.00069
1376 E 5 6MY1967 0.00562
143-; r 7 13JN1967 0.00316
1449 C 3 16JL1967 0.01146
1454 £ 5 15JL1967 0.01400
1533 A 4 19SE1967 0.00928
1536 F 2 24SE1967 0.01091
1378 GS 2 9HV1967 0.00841
1381 ES 5 10HY1967 0.00477
13B4 GS 8 10HY1967 0.00185
13S7 GS11 12HY1967 0.01584
1390 GS14 12KY1967 0.20552
1393 GS17 13HY1967 0.17532
1396 GS20 13HY1967 0.12652
!*•;*. fiS 3 30C1967 0.00521
1568 GS16 50X1967 0.00577
3507 CH 19FE1881 0.04528
46SC8 CH OE1945 C. 01007
46S24 CH 10NY1946 0.00282
46509 CH WR1947 0.02277
465C6 CH MY1947 C. 00066
46S13 CH 6AU1947 C. 01046
44771 EV 11JN1937 O.C0238
46770 EV 9JL1937 C. 31011
46747 EV 1AU1937 0.69312
46749 EV 12KR1936 0.02427
(46759 EV 19MY193B 0.00338
1227 C1 2 13KY1964 0.00439
1232 E 5 16NY1964 0.00348
1439 B 6 5JN1964 0.00599
1239 D 4 11JN1964 0.00232
1244 F 1 11JN1964 C. 00877
1441 B 6 24JL1964 0.00220
1253 C< 2 16JL1964 0.00228
1259 F 2 6JL1964 0.01239
1264 C1 1 10AU1964 0.00579
1270 F 1 10AU1964 0.00272
1284 E 6 17SE1964 0.00635
1290 C1 1 160C1964 0.03411
1294 D 3 150C1964 0.00659
1300 E 3 130C1964 0.02148
1303 E 6 130C1964 0.03918
1306 F 3 11CC1964 0.00277
1309 C> 1 10N01964 0.01286
1312 D 2 8N01964 0.01862
1318 E 2 7N01964 0.00380
1322 E 6 7N01964 0.01666
1338 C 3 28KR1967 0.00397
1370 A 6 3HY1967 0.00230
1410 A 6 24PY1967 0.00564
1447 A 4 11JL1967 0.00234
1451 C 7 16JH967 0.03543
1511 E 2 1SE1967 0.00614
1534 A 6 19SE1967 0.01861
1538 E 5 23SE1967 0.00552
1379 GS 3 9MY1967 0.05261
1382 GS 6 10HY1967 0.00555
1365 GS 9 10HY1967 0.00471
1388 GS12 12KY1967 0.0*223
1391 GS15 12HY1967 0.06704
1394 GS18 13MY1967 0.12041
1397 GS.21 13MY1967 0.04578
1564 GS^2 50C1967 0.00329
1569 GS17 50C1967 C. 00743
46910 CH OC1945 C. 00218
46917 CH 12JA1946 0.00083
46923 CH 2 2ND 19 46 C.CC437
46912 CH AP1947 C. 03449
46919 CH 5JN1947 0.00759
46922 CH 21AU1947 C. 00097
46743 EV 20JN1937 C. 26548
46764 EV 17JL1937 1.49879
46760 EV 22SE1937 O.OC985
46768 EV 16MR1938 C.C1470
1224 B 4 18MY1964 C.CC196
1228 D 2 14MY1964 C. 00584
1233 B 3 5JN2964 C. 00238
1236 C* 1 8JN1964 C.129S2
1241 E 2 13JN1964 C.OC296
1245 F Z 11JN1964 C. 01037
1249 C 3 8JL1964 0.03802
1254 D 2 15JL1964 0.00192
1260 f 3 6JL1964 0.01719
1265 C* 2 10AU1964 C.OC224
1279 E 1 16SE1964 0.00785
1288 B 3 15CC1964 C. 03701
1291 C« 2 16OC1964 0.22993
1298 E 1 12QC1964 0.02154
1301 E 4 130C1964 0.01325
1304 F 1 110C1964 0.00247
1307 B 6 N01964 C. 01082
1310 C* 2 10N01964 0.01134
1313 D 3 9NQ1964 0.00386
1320 E 4 7N01964 0.00414
1324 F 2 6N01S64 C.OC466
1341 A 3 19AP1967 C. 00217
1375 E 3 7MY1967 C.OC241
1416 E 5 28MY1967 C.OC219
1448 A 6 10JL1967 0.02122
1*52 E 2 14JL1967 0.01277
1532 A 3 18SE1967 C. 00657
1^35 C 7 20SE1967 0.00644
1541 E 2 110C1967 C. 02661
1380 GS 4 9MV1967 C. 00841
1383 GS 7 10HY1967 C. 01069
1386 GS1C 12HY1967 £.01149
1389 GS13 12MY1967 0.32746
13S2 GS16 12HY1967 C. 02157
1395 GS19 13HY1967 C. 25836
1398 «S22 14MY1967 0.02125
1567 GS15 5OC1967 C.0031B
1570 GS18 50C1967 0.02975
|
|
76
-------
urn esie Anna*, 7 n.jnino
1574 GS22 60C196T 0.00575
1S47 US 1 20C1967 0.01597
1526 MO 1 20SE1967 0.01707
1545 WL 1 20C1967 0.047«
1551 ES 1 50C1967 0.03195
1458 HU 2 29MY1967 0.22297
1*17 HO 2 22MY1S67 0.07851
1401 HO 2 6MY1967 0.01176
1*29 WL 2 29HY1967 0.55208
1406 GB 2 13MY1967 0.1159?
1 1ST? Gi2fl finriQ^ i.i VfM
15/3 bSZB 6GC1967 0.12128
L15.24 MI 1 20SE1967 C,n3l«o
15JU I-K 1 24SE1967 0.04000
1 15*8 C^l 30C1967 0.01272
1550 MR 1 5QC1967 0.09912
1 HZ* MS Z Z9_MY1967 0.16798
1*18 SH 2 22MY1967 0.17107
1353 FR 2 23AP1967 0.02110
1404 MO 2 10MY1967 0.07622
1123 HA 2 25MY1967 0.004J8
15** HU 1 20C1967 C. 02621 1
1531 CH 1 25SE1967 C. 02536 1
1553 S« 1 60C1967 C. 02203 )
1350 EH 2 19AP1967 C. 08590 1
1*05 ES 2 12MY1967 C. 13545 )
Fragilapia oonstruens (Ehr.) Grun.
Staurosira aonstruens Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841-424
1843.
Fragilaria oonstruens (Ehr.) Grunow, Verb. Zool. Bot. Ges. Wien, 12:371.
1862.
Cells in girdle view rectangular, joined by the valve faces into long,
closely appressed, band-shaped colonies. Specimens from Lake Michigan
5-25y long, 4-12u broad. Valves short, lanceolate with strongly inflated
central portion and protracted, subcapitate to capitate ends. In girdle
view of the colony the sharp expansion of the valve appears as a line, or a
double line, depending on the level of focus, running the length of the
colony. Striae slightly radiate throughout the length of the valve, in the
more robust specimens finely lineate, 14-18 in lOy. Pseudoraphe variable
in shape, in some specimens very narrowly lanceolate and sharply bordered.
in others more broadly lanceolate and indistinctly bordered. No specially
differentiated central area is present.
Specimens of this taxon from Lake Michigan are highly variable, both
in the shape of the valve and in the structure of the striae. Many popula-
tions approach closely the form of the smaller size range of F. inflata
(Heid.) Hust. but specimens of larger size, clearly referrable to that taxon,
have never been found in our collections. Further research may show that
the specimens treated under this epithet actually represent a complex of
similar forms, but such distinctions cannot be made in our material. Large
populations are rare in Lake Michigan and the forms present grade into one
another so subtly that no distinctions can be made. Published reports indi-
cate that this entity reaches its greatest abundance in eutrophic lakes.
Most of our reports come from inshore areas that are appreciably eutrophied.
2*2 FRCGNSTR TCI NC CF STATIONS *6
160973 CH 1876 0.04724
C46920 CH 200E1946 0.00185
(46763 EV 23AU1937 0.02029
1243 E 6 13JN1964 0.00209
1279 E 1 16SE1964 0.00785
1341 A 3 19AP1967 0.00325
1388 Gifl2 12MY1S67 0.00603
1555 GS 2 30C1967 0.0070*
157? GS20 60C1S67 0.01532
1575 GS28 6CC1967 0.00387
1521 SH 1 18SE1967 0.00577
1529 Ktd 1 20SE1967 0.02396
1552 SM 1 6CC1967 0.02641
1428 MU 2 29MY1967 0.00301
imn HH 7 19AP1967 0.16519
1404 MO 2 10MY1967 0.02541
3541 CH IFEIBBI C. 00978
46S22 CH 21AU1947 0.00194
(4C756 EV 27AP1S38 0.00168
1264 C> 1 10AU1964 0.00193
1287 F 3 1SSE1964 0.00500
1408 A 3 23MY1967 0.00447
1396 GS20 13MY1967 C. 01036
1569 GS17 50C1967 0.00149
1571 GS21 eOC1967 fl. 00336
1544 Mil 1 2CC1S67 0.00715
1522 BH 1 18SE1967 0.00547
1530 FR 1 24SE1967 C. 01000
1550 KB 1 50C1967 1.58592
1426 MS 2 29KY1967 0.05249
1402 TR 2 6MY1967 0.00541
1407 SM 2 14MY1967 0.02986
46923 CH 22N0.1446 0.00219
46758 EV 5JN1937 0.00357
1236 C1 1 EJN1964 C.CC175
1272 C' 1 10SE1964 C.OCB21
1293 D 2 15QC1964 0.00472
1536 E 2 24SE1967 C.OC273
1397 CS21 13MY1W7 C.C0065
1571 GS19 60C1967 0.00117
1574 CSZZ 60C1-S67 C.01726
1546 LU 1 20C1967 0.03001
1527 TR 1 20SE1967 C. 03145
1545 kL 1 20C1967 C.1C612
1553 SG 1 60C1467 0.00734
1417 Kl 2 22MY1967 C. 01122
1354 C-H 2 25AP1967 C.OC690
1349 CI 2 19AP1967 C. 00359
construens var. binodis (Ehr.) Grun.
Fragilaria ? binodis Ehrenberg, Mikrogeol., pi. 5(2), fig. 26; pi. 6(1),
fig. 43; pi. 11, fig. 15. 1854.
F?agilaria oonstruens var. binodis (Ehr.) Grunow, Verh. Zool.-Bot. Ges.
Wien, 12:371. 1862.
77
-------
Valves biundulate with constricted raidportions and protracted, rostrate
to subcapitate ends. Size range and ornamentation of the valve surface the
same as in the nominate variety. Valves often more or less asymmetric,
strongly constricted on one side and somewhat less constricted to nearly
parallel on the other.
Published reports indicate that this entity has about the same distri-
bution range as the nominate variety. Asymmetric forms appear to be most
common in highly eutrophied habitats.
243 FRCONSVB TCT KG OF STATIONS 65
3541 CH 1FE1681 0.01996
1264 C« 1 10AU1964 Q. 00772
1285 F I 15SE1964 0.00582
1-3OA F * 11DC1964 0-OO554
1341 A 3 19AP1967 0.00542
1S1A F 1 24SE1967 0.00818
1388 GS12 12MY1S67 0.00603
139? GS1A 12HY1-567 0.01S41
1396 GS20 13MY1967 0.00592
15A1 C« 0 4nC1967 0.00587
1567 GS15 50C1967 0.01429
1571 CS19 6CC1S67 0.00234
1575 6S28 60C1967 0.02193
1S3<1 nn I 18SE1967 0.09901
1526 MO 1 20SE1967 0.14792
1529 KM 1 . 2CSE1967 0.17988
1545 ML 1 20C1967 20.43381
1550 MR 1 50C1967 0.35931
1426 MS 2 29MY1967 0.02100
141 B SH 2 22MY1967 0.07776
1353 FR 2 23AP1967 0.01055
1407 SH 2 14MY1967 0.00597
[46747 EV 1AU1937. 0.00248
1270 F 1 10AU1964 C. 00272
1304 F 1 110C1964 0.00247
L1324 f 2 6N01964 0.00233
1342 A 4 19AP1967 0.00361
1541 E 2 11DC1967 0.00532
1389 GS13 12MY1961 O.C0258
1394 GS18 13MY1967 0.00344
1554 GS 1 30C1967 0.00356
1565 GS13 5QC1967 0.03042
1568 GS16 50C1967 0.01299
1572 G520 60C1967 C. 03064
1544 MU 1 2GC1967 0.06434
1521 SH 1 18SE1967 0.04616
1527 TR 1 20SE1967 6.13836
1530 FR 1 24SE1967 0.08001
1549 MQ 1 40C1967 0.01370
1553 SG 1 6QC1967 0.02203
1427 LU 2 29MY1967 0.02421
1350 BH 2 19AP1967 0.11674
1354 GH 2 25AP1967 C. 01036
1406 GB 2 13MY1967 0.00539
1245 F 2 11JN1964 C. 00346
(279 E 1 16SE1964 C.C1178
1305 F 2 110C1964 C.OC345
1338 C 3 28MR1967 0.00132
1532 A 3 18SE1967 C.OC657
1387 GS11 12MY1967 C.OC396
1391 6S15 12MY1967 C.OC479
(395 CS19 13MY1961 C.OC117
1558 CS 5 40C1967 C. 05946
15*4 GS14 50C1967 C. 00183
1569 CS17 50C1967 C. 01189
1574 GS22 60C1967 C. 04315
1946 LU 1 2GC1967 C. 03001
1522 BH 1 18SE1961 C. 00365
1528 SB 1 20SE1967 C.028B8
1531 GH 1 25SE1967 C. 05072
1552 SH 1 60C1967 C. 01321
1428 fU 2 29MY1967 0.00904
1417 HO 2 22MY1967 0.06729
1401 CO 2 6MY1967 0.01764
1404 MQ 2 10MY1967 C. 02541
Frag-Llapia construens var. oap-itata Heirib.
Fvag-ilapia oonstruens var. oap-itata Hgribaud, Diat. Auvergne, p. 144,
pi. 1, fig. 2. 1893.
Valves linear-lanceolate with protracted, capitate ends, occasionally
slightly constricted near the middle of the valve. Specimens from Lake
Michigan 12-30u long, 4-7y broad, striae 14-16 in lOy. Ornamentation of
the valve surface the same as in the nominate variety.
?44 FRCCNSVC TOT NO OF STATIONS
( 3541
( 1382
1 1554
I 1350
CH
GS 6
GS 1
BH 2
1FE1881
10KV1967
30C1967
19AP1967
0.01956 I
0.00278 )
0.00712 1
O.OC220 1
( 1274
1 1392
1 1559
( 1354
0 1
GS1«
GS 7
GH 2
17SE1964
12KY1S67
40C1967
25AP1967
0.00469 1
0.00925 1
0.00350 1
0.00173 I
1 1279
< 1396
1 1571
1 1404
E 1
GS2C
CS19
rc 2
16SE1964
13KV1967
60C1967
10PY1967
C. 02356 1
C.OC074 I
C. 00059 1
C. 01270 )
aonstruens var. minuta Temp, and Per.
construens var. minuta Tempere and Peragallo, Diat. Monde
Entier, ed. I, no. 89. 1889.
Very small form, only 4-10y long and 2-3p broad. Valves elliptical-
lanceolate in shape and striae finer than in the nominate variety, 16-20 in
10y.
Although uncommon in modern collections, this entity is abundant in
some subfossil material from the upper Great Lakes region. It is the same
entity that we (Stoermer and Yang 1968) reported as an undetermined species
abundant in Lake Huron sediments. Andrews (1966) reported entities under
the name F. oonstruens var. venter in the same size range. While it is
conceivable that the range of variation in the above entity may include our
specimens, it appears to us that the consistently narrower valves and the
finer striae are sufficiently distinctive characteristics to separate the
two taxa.
78
-------
FRSPECCB TCT I>C CF STtTICNS 14
146910
146758
(46762
( 1270
( 1341
.CH
EV
EV
F 1
A 3
OC1945
5JN1937
18MR1938
10AU1964
19AP1967
0.00109 )
0.007,13 I
0.02206 I
0.00272 )
0.00217 1
(46515
146763
( 1260
( 1285
< 1346
CH
EV
F 3
F 1
C 7
20FE1946
23AU1937
6JL1964
15SE1964
21AP1967
0.00569 )
0.04058 )
C. 00191 I
0.01165 )
0.00267 1
(46906
146768
< 1268
( 1305
(
CH
EV
E 2
F 2
MY1S47
16KR1936
15AU1964
110C1964
C.CC133 )
C. 01470 )
C.OC274 t
C.OC173 I
Fragilaria oonstruens var. pumila Grun.
Fragilcacia oonstvuens var. pumila Grunow in: Van Heurck, Syn Diat
Belgique, pi. 45, fig. 21a. 1881.
Valves elliptic-lanceolate to lanceolate with somewhat protracted,
rostrate apices. Size range and oranmentation of the valve surface the
same as in the nominate variety.
245 FRCONSVP TCT NG OF STATIONS
1 3541 CH 1FE1881 0.04891
(46750 EV 24SE1937 0.00*71
1341 A 3 19AP1967 0.00108
1537 E 3 24SE1967 0.00431
1520 HO 1 18SE1967 0.00471
1529 KM 1 20SE1967 0.01199
1550 MR 1 5QC1967 0.02478
1417 HO 2 22NY1967 0.00374
(46747 EV 1AU1937 0.00248
( 1264 C* 1 1CAU1964 0.00193
( 1533 A 4 19SE1967 0.00464
( 1574 GS22 60C1967 0.00288
( 1522 BH 1 18SE1967 C. 00365
( 1531 6H 1 25SE1967 0.01691
( 1553 SG 1 60C1967 0.00734
I 1350 BH 2 19AP1967 0.04185
46763 EV 23AU1531 C.C2C29
1304 f 1 110C1964 O.OC494
1536 E 2 24SE1S67 C.CC273
1544 PU 1 20C1967 C.OC715
1527 TR 1 2CSE1967 C. 01258
1545 kL 1 20C1967 C. 05406
1428 fu 2 29MV1967 C.CC904
1354 CH 2 25AP1967 C. 00345
Fragitaria construens var. subsalina Hust.
Fragilaria sonstruens var. subsalina Hustedt, Mitt, geogr. Ges., Naturhist.
Mus. LUbeck, 2 Reihe, 30:106, fig. 5-8. 1925.
Valves linear with parallel sides and cuneate, in the larger specimens
somewhat protracted, ends. Size range and ornamentation of the valve surface
as in the nominate variety.
247 FRCGNSVA TCT
(60973
1 1?79
( 1550
CH
f 1
MR 1
NO OF STATIONS 9
1876
16SE1964
50C1967
0.02362 1
0.00785 )
0.01239 )
(46758
( 1341
( 1350
EV
A 3
BH 2
5JK1937
19AP1967
19AP1967
C. 01070 I
0.00108 I
0.00220 1
(46762
( 1569
I 1404
EV
GS17
CO 2
18HR1938
50C1967
10MY1967
C. 02206 )
C. 00149 )
C. 02541 )
Fragilaria oonstruens var. vente? (Ehr.; Grun.
Fragilavia venter Ehrenberg, Mikrogeol., pi. 14, fig. 50. 1854.
Fragilaria construens var. venter (Ehr.) Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 45, figs. 21b, 22, 23, 24b, 26a-b. 1881.
Valves rhombic-elliptical to elliptical with somewhat protracted, ros-
trate ends. Maximum length of specimens from Lake Michigan does not exceed
lOy. Ornamentation of the valve surface essentially similar to that of the
nominate variety.
1 3540 CH 11KY1879 0.00466
(46915 CH 20FE1946 0.00569
146905 CH JA1947 0.00123
(46907 CH JL1947 0.00049
(46771 EV 11JN1937 O.OC238
146747 EV 1AU1937 0.01238
46748 EV 130C1537 0.04270
46762 EV 18MR1938 0.02206
1284 F 6 17SE1964 0.00318
1303 E 6 130C1964 0.01119
| !374 f } 7PY1967 0.00598
1538 I 5 23SE1967 0.07181
1387 GS11 12MY1967 0.00396
1396 GS20 13MY1967 0.00148
1559 CS 7 4QC1967 0.00350
156.6 GS14 50C1967 0.00183
1174 BS7P 6nC19A7 0.31065
( 3541 CH 1FE1C81 O.C0978
(46923 CH 22N01946 0.00219
(46916 CH 4HY1S47 C. 00068
(46922 CH 21AU1947 0.00388
(46743 EV 20JN1937 C. 00428
(46752 EV 15SE1937 C. 02177
(46767 EV 270C1937 0.01547
( 1274 0 1 17SE1964 0.00469
( 1291 C1 2 160C1964. C. 00245
( 1322 E 6 7N01964 0.00333
1452 E 2 14JL1967 0.00213
1541 E 2 110C1967 0.00532
1392 GS16 12KY1967 0.00308
1398 GS22 14CY1967 0.00607
1561 G<, 9 40C1967 0.00587
( 1567 OS 15 50C1967 0.00476
( 1575 GS28 60C1967 C.00129
46917 CH 12J«1946 C.OC083
46920 CH 200E1946 C.OC031
46919 CH 5JM9-.1 C.OC303
46758 EV 5JN1937 C. 01426
46764 EV 17JL1937 C.C4835
46750 EV 24SE1937 C.OC943
46768 EV 16HR1936 C.C8820
1279 E 1 16SE1964 C.OC785
1297 0 6 140C1944 C.C0381
1340 C 7 28HR1967 0.00145
1537 E 3 24SE1967 C.OC431
1383 GS 7 10HY1967 C. 00535
1394 GS18 13HY1967 C.OC344
1557 GS 4 30C1967 C.OC374
1563 6SH 50C1967 C. 00234
1572 GS20 6CC1967 C.CC180
1544 CU 1 2GC1967 C.0166H
79
-------
1 1521 SH 1 18SE1967 0.01154
( 1527 TR 1 2CSE1967 0.13836
1545 ML 1 20C1S67 0.04730
15« SG 1 6OC1967 0.03672
1399 PW 2 5HY1967 0.01360
1SS2 KW 2 21AP1967 0.04295
1407 SH 2 14MY1967 0.37619
1523 KA 1 19SE1967 0.01845
1528 SB 1 20SE1967 0.07219
1E52 SH 1 6CC1967 0.15847
1417 HD 51 ??MY|S67 0.00374
1401 HO 2 6MY1967 0.03528
1404 HO 2 10MY1967 0.02541
1349 CI 2 19AP1967 0.00359
1526 CO 1 20SE1967 0.15930 1
1529 KM 1 20SE1967 C. 07195 1
1550 CR 1 50C1967 0.08673 1
1350 BH 2 19AP1967 C.03144_J
1402 IR 2 6MY1967 C. 04873 1
1405 ES 2 12MY19A7 C. 00645 1
Fragilaria arotonens-is Kitton
Fpagilaria orotonensis Kitton, Sci. Gossip, 5:110, fig. 81. 1869.
Cells in girdle view lanceolate, with blunt ends and expanded central
portions. Cells joined by valve faces of the expanded central portion into
long, ribbon-shaped colonies. Specimens from Lake Michigan 40-112vi long and
2-4y broad at the widest part of the valve. Valves very elongate, spindle-
shaped, with expanded central portion, tapering gradually to near the apices
which are bluntly rounded to subcapitate. Pseudoraphe very narrow, linear.
In most specimens a central area is present in the form of a broad trans-
verse fascia. In some specimens this area is indistinctly bordered by par-
tially developed striae and in some specimens, particularly in the smaller
size range, the central area is entirely .lacking. The striae are indis-
tinct and sometimesirregular 12-16 in lOp.
248 FRCROTON TCT NO OF STATIONS 320
60973 CH 1876 44.63863
3*07 CH 19FEJ.68L U-98030
469C8 CH DE1945 12.10473
46914 CH 19AP1946 11.97185
4*920 CH 20DE1946 71.07423
46912 CH AP1947 36.24237
46919 CH 5JN1S47 16.66893
4«<9;? CH 21AU1947 35.53409
46743 EV 20JN1937 20.98141
46764 EM 17JL1937 29.55681
46763 EV 23AU1937 32.38635
46752 EV 15SE1937 40.63586
46744 EV 6CC1937 56.67186
46749 EV 12HR1938 36.70348
46751 EV 30MR1938 13.44350
46759 EV 19HYIS38 5.19919
1223 B 3 18HY1964 2.51582
1226 C7 16HY1964 10.12177
1229 P 5 14MY1964 11.98960
1232 F 5 16MY1564 8.88727
1235 C 7 16JN1964 22.93330
1237 C« 2 8JN1964 15.33900
1240 D 6 10JN1964 8.16063
1243 E 6 13JN1964 8.91589
1246 F 3 11JN1964 14.22339
1440 B 6 11JL1964 15.78656
1250 G 6 10JL1964 12.26310
1253 C« 2 16JL1964 16.82947
1256 E 2 14JL1964 5.43160
1259 F 2 6JL1964 29.48996
1262 B 3 17AU1964 62.32675
1261 C 7 15AU1964 54.92393
1266 D 3 18AU1964 27.99214
I2A9 F 3 15AU1964 23.21437
1272 C* 1 10SE1964 34.91359
127-i n ? 17SF1964 38.50073
1278 D 6 18SE1964 11.13801
1781 E 3 16SE1S64 29.07428
1264 E 6 17SE1964 42.81447
12B7 F 3 15SE1964 43.78502
1289 C 7 140C1964 10.46568
1292 D 1 150C1964 38.08884
1295 0 4 150C1964 24.14079
l?0fl F 1 12GC1964 34.11783
1301 E 4 130CK64 39.25638
liri4 F 1 110C1964 75.20003
1307 B 6 N01964 36.87399
Hin (-_• 1 10NQ1964 50.47618
1313 D 3 9N01964 34.59459
lil& D 6 9N01964 39.13568
1319 E 3 7N01964 47.83598
1W2 f b 7NG1S64 51.78790
1325 F 3 6N01964 48.13722
11*8 C 3 J8HR1967 2.71593
1341 A 3 19AP1967 2.74129
1345 C 5 25AP1967 2.74838
1348 E 5 23 API 967 1.75188
3540 CH 11PY1B79 12.27228
46910 CH OC1945 12.38913
46917 CH 12JA1946 11.73145
46924 CH 10MY1946 10.38574
46SC5 CH JA1947 42.78098
46916 CH 4MY1947 16.25369
4tS07 CH JL1947 30.03308
46758 EV 5JN1937 9.28607
46745 EV 3JU937 28.67293
46757 EV 25JU937 43.94588
46765 EV 30AU1937 29.82710
46760 EV 22SE1937 49.21954
46748 EV 130C1937 2.8608C
46768 EV 16MR1936 9.87799
46772 EV 18AP1938 12.12207
46761 EV 27MY1938 32.58475
1224 8 4 18KY1964 1.64690
1227 C' 2 13HY1964 6.83189
1230 E 2 16HY1964 6.84546
1233 fl 3 5JN2964 16.33682
1439 B 6 5JIU964 14.31369
1238 0 3 11JN1964 3.22000
1241 E 2 13JM964 8.27986
1244 F 1 11JN1964 27.78416
1247 8 3 14JL1964 24.50163
1441 B 6 24JL1964 12.58838
1251 C 7 16JL1964 11.82282
1254 0 2 15JL1964 1C.24899
1257 E 3 14JL1964 2.17729
1260 F 3 6JL1964 25.25545
1442 8 6 2AU1964 26.62914
1264 C- 1 IOAU1964 20.67886
1267 C 6 18AU1964 32.38219
1270 F 1 10AU1964 3S.45540
1273 C1 2 10SE1964 35.57201
1276 D 3 18SE1964 26.59811
1279 E 1 16SE1964 31.88832
1282 E 4 16SE1964 36.45428
1285 f 1 15SE1964 38.32623
1288 B 3 150C1964 57.29460
1290 C* 1 160C1964 49.34621
1293 D 2 150C1964 21.79039
1296 0 5 140C1964 14.32112
1299 E 2 120C1964 35.40685
1302 E 5 13CC1964 41.66328
1305 F 2 110C1964 7S.33960
1308 C 7 6ND1964 16.39343
1311 D 1 8NQ1964 48.03673
1314 D 4 9NQ1964 35. 78984
1317 E 1 6K01964 48.24997
1320 E 4 7N01964 46.18407
1323 F 1 6N01964 67.80487
1336 C 3 27JA1967 6.46987
1339 C 5 28MR1967 2.20739
1342 A 4 19AP1967 3.81499
1346 C 7 21AP1967 2.61707
1368 A 3 4HY1967 4.21929
(
1
1
1
(
(
<
I
<
(
<
(
I
i
I
1
3541 CH 1FE1881 (.72992
46921 CH 23N01945 23.28799
46915 CH 20FE1S4E 17.38461
46923 CH 22N01946 34.66364
469C9 CH HR1947 6.43313
46906 CH HY1947 14.32250
46913 CH 6AU1947 16.14265
46771 EV 11JN1937 12.64799
46770 EV 9JU937 26.38739
46747 EV 1AU1937 55. 24171
46769 EV 7SE1937 55.92705
46750 EV 24SE1937 42.75816
46767 EV 270C1S37 68.45383
46762 EV 18MB1938 5C. 63960
46756 EV 27AP1938 1.8C429
46766 EV I4DE1938 33.26996
1225 C 6 15MY1964 7.13446
1228 0 2 14MY1964 3.4C606
1231 E 3 16HY1964 2.39703
1234 B 3 18JN1964 2S.S1452
1236 C< 1 8JM1964 11.76223
1239 0 4 11JN1964 C.C9225
1242 E 3 13JN1964 C. 41963
1245 F 2 11JN1964 14.52182
1248 B 3 24JL1964 27.03554
1249 C 3 8JL1964 14.63878
1252 C< 1 16JL1964 16.55508
1255 D 5 1SJL1964 ?. 45793
1258 F 1 6JL1964 37.62181
1261 B 3 2AU1964 42.31100
1443 B 6 16AU1964 57.23322
1265 C' 2 10AU1964 40.21638
1268 E 2 15AU1S64 22.78696
1271 C 7 . 22SE1964 6.95306
1274 0 1 17SE1964 35.86073
1277 0 4 18&E1964 22.12169
1280 E 2 16SE1964 5. 93941
1283 E 5 16SE1964 22.9C669
1286 F 2 15SE1964 42.14096
1445 B 6 14CC1964 18.94977
1291 C' 2 I6GC1964 39.C3918
1294 D 3 150C1964 28.38118
1297 D 6 14GC1964 10.12909
1300 E 3 130C1964 32.57^61
1303 E 6 130C1964 11.63124
1306 F 3 110C1964 76.05742
1309 C1 1 10N01964 58.64C98
1312 0 2 8N01964 45.41362
1315 0 5 9N01964 27.07005
1318 E 2 7NC1964 44.21361
1321 E 5 7N01964 48.49007
1324 F 2 6NQ1964 C5.E7CC7
1337 C 3 2HR1967 3.36866
1340 C 7 28MR1967 2.91087
1344 C 3 25AP1967 1.50550
13*T E 2 23AP1967 1.62914
1369 A 4 4HY1967 G. 33-919
80
-------
1
(
[
1
1370 A 6 3MV10A7 6.41271 1
1376 E 5 6HY1967 3.98302
1410 A 6 Z4MY1967 6.39377
1413 C 7 25MY1967 2.22331
1433 C 3 17JN1967 4.97352
1446 A * 11JL1967 2.39714
1449 C 3 16JL1967 5.0B235
1452 E 2 14JLIS67 8.79210
1504 A 3 28AU1967 32.14417
'inn C 3 2SE1567 20.14227
1532 A 3 18SE1967 44.38092
1535 C 7 20SE1967 16.44832
1538 E 5 23SE1967 27.06732
1541 6 2 110C1967 37.99690
1377 GS 1 9MY1967 0.47101
1380 GS 4 9MY1967 9.41651
1383 GS 7 10MY1967 5.05239
1386 GS10 12MY1967 1.70928
1389 GS13 12MY1967 13.53686
1392 GS16 12NY1967 5.17767
1395 GS19 13MY1967 2.38392
1398 ES22 14MY1967 8.07602
1556 GS 3 30C1967 23.36131
1559 GS 7 40C1967 54.34706
1562_ GSIO 50C1967 30.22154
1565 GS13 50C1967 60.69363
1568 GS16 50C1967 31.00964
1571 GS19 60C1967 8.85106
1574 GS22 60C1967 31.81268
1547 US 1 20C1967 23.12175
1520 HD 1 1SSE1967 18.85991
1523 RA 1 19SEL967 41.32640
1527 IR 1 20SE1967 S. 23270
1530 FR 1 24SE1967 18.68188
1548 CA 1 3DC1967 68.59178
1552 SM 1 60C1967 29.47507
1428 FU 2 29HY1967 1.06059
1427 LU 2 29MY1967 2.90557
1350 BH 2 19AP1967 0.95152
1401 MO 2 6KY1967 1.97554
135? KU -1 21AP1967 5.63477
1429 ML 2 29MY1967 2.03843
1405 FS ? 12HY1967 5.57275
1406 GB 2 13HY1967 0.09435
1431 CH 2 23MY1967 11.10340
1424 KN 2 25MY1967 13.64242
L-UJJL C_3 4MY1967 fl.1ifl,,
"'* fc <• TMY1967 2.30126
1*06 A 3 23HY1967 4.69526
"" C 3 31MY1967 2.87203
L-1414 E-i 28MH967 j.ima
1*31 * 3 12JN1967 3.82110
1*34 f- * 17JN1967 2.53619
1*37 E 3 15JN1967 0.45218
1*47 A 4 11JL1967 12.77133
1*50 C 5 16JL1967 8.93078
1*53 E 3 15JL1967 C. 57630
1505 A 4 28AU1967 32.46417
15r° C * 2SE1967 29.32269
131* E 3 1SE1967 24.18721
1E33 A 4 19SE1967 44.84262
1536 E 2 24SE1967 19.27795
1539 C 3 40C1967 42.26627
1542 E 3 UGC1967 24.20667
1378 GS 2 9MY1967 3.53223
1381 GS 5 10MY1967 5.67667
1384 GS 8 10MY1967 2.19983
1387 GS11 12CY1967 7.20849
1390 GS14 12MY1967 7.39871
1393 GS17 13MY1967 10.35503
1396 GS20 13NY1967 0.88047
1554 GS 1 30C1967 3C. 38496
1557 GS 4 3CC1967 54.93272
1560 GS 8 40C1967 32.73036
1563 GS11 50C1967 46.32184
1566 GS14 50C1967 4S. 44046
1569 GS17 5CC1967 56.50111
1572 GS20 6QC1967 6.68758
1575 GS28 60C1967 13.72761
1524 HI 20SE1967 15.76182
1521 SH 18SE1967 18.46295
1925 PM 20SE1967 29.62317
1528 SB 20SE1967 26.10452
1531 GH 25SE1967 0.48183
1549 MO 4BC1967 14.03316
1550 MR 1 50C1967 4.55953
1426 MS 2 2SMY1967 7.72703
1417 HO 2 22MY1967 1.91416
1425 RA 2 25MY1967 12.02369
1402 TR 2 6KY1967 4.07191
1353 FR 2 23AP1967 0.07384
1403 CA 2 10HY1967 5.85851
1407 SM 2 14MY1967 6.11453
1419 BU 2 23HY1967 12.59612
1422 GA 2 23NY1967 12.18004
1430 MC 2 12JN1967 4.34246
1
I375 E 3 7MY1967 1.88647
1*12 C 5 31MY1967 1.94882
*•*•** A A 13JN1S67 4.49831
-^^8 A 6 10JL19fi7 5.44*51
1C*3A C 7 16JL1S67 10.60962
1506 A 6 29AU1967 2C. 50929
151° C 7 29AU1967 26.11444
1513 E 5 31AU1967 51.43407
1534 A 6 19SE1967 43.86807
1537 E 3 24SE1967 16.90675
1543 E 5 100C1967 28.15686
1379 CS 3 9HY1967 9.96534
1382 CS 6 10MV1967 2.91432
1385 GS 9 10NY1967 3.23044
1388 C-S12 12MY1967 4.22323
1391 C-S15 12HV1967 8.04482
1394 GS18 13MY1967 8.79004
1397 C-S21 13MY1967 C. 77832
1555 CS 2 3QC1967 37.C7626
1558 GS 5 4QC1967 51.88678
1561 GS 9 4QC1967 26.7C657
1564 GS12 SOC1967 73.16148
1567 C-S15 5CC1967 3C. 11876
1570 GS18 5DC1967 48.59183
1573 CS21 6GC1967 14.26764
1544 MU 1 20C1967 0.4C031
1546 IU 1 20C1967 3.44120
1522 BH 1 18SE1967 0.00912
1526 HO 1 20SE1967 15.47477
1529 KM 20SE1967 17.65199
1545 ML 20C1967 3.13535
1551 ES 50C1967 38.21391
1553 SG 60C1967 16.80376
1351 PI 21AP1967 1.43988
1418 SH 2 22MY1967 5.97201
1399 Fh 2 5MY1967 5.0C544
1400 SB 2 6MY1967 5.81368
1354 GH 2 25AP1967 C. 46949
1404 PQ 2 10MY1967 3.45528
1349 CI 2 19AP1967 2.12659
1420 IH 2 23MV1967 9.66767
1423 MA 2 25HY1967 19.5264C
Fragilaria OTOtonensts var. oregona Sov.
Fvagitaria orotonensi-s var. oregona Sovereign, Trans. American Micr. Soc.
77:107. pi. 2, figs. 1-3. 1958.
Cells in girdle view lanceolate, with expanded central portions and
bluntly rounded to subcapitate ends. Cells joined by the valve faces of the
expanded central portions into long, ribbon-shaped colonies. Specimens from
Lake Michigan 55-150y long, 2.5-4y broad at the widest point. Valves elon-
gate-lanceolate, central portion of the valve constricted, widest point lying
on each side of the central area. Striae fine but distinct, 12-15 in lOp.
Axial area narrow, central area a structureless transverse fascia.
This species is one of the most widely reported of all freshwater plank-
ton diatoms. Although most authors have chosen to treat all entities having
similar colony form under the single epithet, the forms found in Lake Michi-
gan are clearly separable into at least three series on the basis of mor-
phology. The obvious differences in the size range of populations occurring
in different lakes in Europe has been commented upon by Huber-Pestalozzi
(1942). In Lake Michigan we have found occasional populations of apparent
auxospores in the size range of 70-90y, clearly smaller than the maximum
size of two of the entities in the complex. Nipkow (1927) has reported
similar observations from Lake Zurich. It seems clear to us that,,in its
general usage, the name F. orotonensis is applied to a complex of separate
genetic entities. The proper taxonomic treatment of this complex is yet to
be resolved. The treatment presented here appears reasonable on the grounds
of morphologic criteria but further research may prove it to be inadequate.
81
-------
r.nt TUT un nr
146919 CH 5JN1947 0.00152 )
1261 B 3 2AU1964 0.00589 1
137? E 6 7N01964 C. 01000 )
1454 E 9 15JL1967 0.00200 )
1535 c 7 20SE1967 0.00322 1
1395 GS19 13MY1967 0.00235 )
1521 SH 1 18SE1967 0.00577 )
1531 GH 1 25SE1967 0.10989 )
1428 MU 2 2SMY1967 0.25310 )
1350 BH 2 19AP1967 0.01542 1
1235 C 7 16JN1964 0.00282
1264 C1 1 10AU1964 0.00772
1324 F 2 6N01964 O.CD466
1532 A 3 18SE1967 0.00329
1539 C 3 40C1S67 0.00503
1544 HU 1 20C1967 0.01191
1522 BH 1 18SE1967 0.05106
1545 WL 1 20C1967 0.02703
1426 MS 2 29KY1967 0.47244
1429 WL 2 29KY1967 0.04247
1248 B 3 24JL1S** C.C0788 I
1299 E2 120C1964 C^031*
1452 E 2 14 M '««' C.OC426
1533 A 4 19SE1967 c.t<:¥ia heideni 0strup, Danske Diat., p. 190, pi. 5, fig. 118. 1910.
Fragilaria inflata (Heid.) Hustedt in: Rabenhorst, Kryptog.-Fl. Deutsch-
lands, 7(2)1:155, fig. 669. 1931. (non Pantocsek 1902).
Cells in girdle view rectangular, in life attached by the valve sur-
faces into band-shaped colonies. Valves lanceolate with expanded central
portions and bluntly rounded to subcapitate ends. Specimens from Lake
Michigan 22-40y long, 7-10p broad. Striae perpendicular to the midline of
the valve throughout, 13-15 in lOy. Axial area wide,lanceolate, without any
especially demarcated central area.
Previous reports indicate that this entity is a littoral form in large
lakes. In Lake Michigan it has only been noted in inshore areas.
253 FRINFLAT TOT NC CF STATIONS
( 1350
BH 2
1SAP1967 0.05506 I
6KY1967 C.00541 ) ( 14C4
10HY1967 C.C127C )
Fragilaria heideni var. istvanffyi (Pant.)
Fragilaria istvanffyi Pantocsek, Res. Wiss. Erforsh. Balatonsees, p. 79,
pi. 9, fig. 225, 1902.
Fragiiaria inflata var. istvanffyi (Pant.) Hustedt in: Rabenhorst, Kryptog.
Fl. Deutschlands, 7(2)1:156, fig. 669. 1931.
Differs from the nominate variety in having more or less strongly tri-
undulate margins and subcapitate to capitate ends.
254 FRINFLVI TOT NO OF STATIONS 1
I 1350 BH 2 ~ 19AP1967 0.00220 )
Fragilaria intermedia Grun.
Fragilaria intermedia Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 45
figs. 9-11. 1881.
Cells in girdle view elongate-rectangular, in life attached by the
valve surfaces into long, band-shaped colonies. Valves linear-lanceolate
to lanceolate with rostrate to subcapitate ends. Specimens from Lake Michi-
gan 25-65y long, 3-5y broad. Transapical striae perpendicular to the a-
pical axis throughout, coarsely structured, 8-13 in lOy, finely cross-lineate.
Axial area narrow, linear distinctly bordered. Central area a unilateral
fascia, not visibly thickened, often indistinct or containing rudimentary
striae.
82
-------
This entity shows a great deal of variation in populations from Lake
Michigan. Although previous reports indicate that it is primarily littoral
in most habitats, it is present in the offshore plankton from Lake Michi-
gan and often in considerable quantity. The forms occurring in the off-
shore plankton tend to be more elongate and lanceolate rather than linear
in outline and may represent a separate variety or form. Our observations
to date, however, indicate that these forms grade into the nominate variety
to the extent that they cannot be satisfactorily separated on the basis of
morphologic characteristics.
Petersen (1938) and several other authors have called attention to
the similarity of this taxon to Synedra vaueheriae Kiitz. [Fragilax>ia vau-
oheriae (Kutz.) Peters.]. It is Peterson's contention, based on the obser-
vation of isotype material, that the two entities are synonymous. If this
contention can be supported, the entity we treat here, as it is generally
treated in the modern literature, will need to be renamed as it is easily
distinguished from S. vaucher>-uxe on several morphologic characteristics.
The decision on this awaits the monographer with access to type material.
Ahlstrom (1936) reported Fragilapia viresaens Ralfs abundant in col-
lections from Lake Michigan. We suspect that he was, in fact, dealing with
the entity we treat here.
255 FRINTERC ICI NO OF STATIONS 142
(46921 CH 23NQ1945 0.00194
[46916 CH 4HY1947 0.00204
(46758 EV 5JN1937 1.09835
(46770 EV 9JL1937 0.28626
(46747 EV 1AU1927 0.45053
(46760 EV 22SE1S37 0.05909
(46767 EV 270C1937 0.03095
(46762 EV 18HR1S38 0.19850
46759 EV 19MY1938 0.01350
1225 C 6 JSMY1964 0,00784
1226 D 2 14MY1964 0.00389
1231 E 3 16MY1-364 0.00245
1439 B 6 5JN1964 0.00599
1240 D 6 10JN1964 0.02301
1243 E 6 13JN1964 0.03550
1246 f 3 HJN1964 0.05379
1256 E 2 14JL1964 0.00916
1760 F 3 6JL1964 £,iC_191
1269 E 3 1SAU1964 0.00274
1275 D 2 17SE1964 O.CC645
1289 C 7 140C1964 0.01319
IP97 ._ _ n 6 ._HQC19*A 0.00762
1308 C 7 6N01964 0.01217
1318 E 2 7N01964' 0.00190
1323 F 1 6N01964 O.OC13S
1337 C 3 2MR1967 0.51441
1340 C 7 28MRIS67 0.91624
1343 A 6 19AP1967 0.24316
1346 C 7 21AP1967 0.23361
I16R A 3 4MY1967 0.73516
1371 C 3 4MY1967 0.21007
1374 E 2 7MY1967 0.37956
1408 A 3 23MY1967 0.06260
1411 C 3 31MY1967 0.14360
1414 E 2 28MY1967 0.02687
1511 E 2 1SE1967 0.00307
1538 E 5 23SE1967 0.04972
1390 GSI4 12HY1967 0.01174
1559 CS 7 40C1967 0.00350
1574 GS22 60C1967 0.00575
1526 HO 1 20SE1967 0.06258
IWB KU 1 7nSCH>fc7 3.1741F
1552 SM 1 60C1967 0.02641
1351 MI ? 21AP1967 0.00621
1350 BH 2 19AP1967 C. 16960
1402. IB 2 6FY1967 0.02707 )
1354 GH 2 25AP1967 0.00518
1471 CH 2 23MY1967 0.01735
46S14 CH 19AP1946 0.00107
(46919 CH 5JN1947 0.39453
(46771 EV 11JN1937 0.00238
46764 EV 17JL1937 0.20951
146763 EV 23AU1937 0.87256
46750 E\i 24SE1937 0.03299
46749 EV 12KR1938 0.03641
46772 EV 18AP1538 0.00710
46761 EV 27MV1938 0.01363
1226 C 7 16MY1964 0.01142
1229 D 5 14NY1964 0.01057
1232 E 5 16KY1S64 0.12870
1236 C« 1 8JN1964 0.00700
1241 E 2 13JN1S64 C. 02218
1244 F 1 11JN1964 0.00329
1252 C' 1 16JL1964 0.01395
1257 E 3 14JU964 0.01675
1267 0 6 18AU1964 0.01513
1270 F 1 10AU1964 0.00817
1284 E 6 17SE1964 0.00318_
1291 C' 2 160C1964 C. 00245
1303 E 6 13QC1964 0.04478
1313 0 3 9NQ1'S64 0.00193
1321 E 5 7N01964 0.00319
1324 F 2 6N01964 0.00233
1338 C 3 28CP.1967 0.67964
1341 A 3 19AP1967 1.51872
L1344 C 3 25AP19&7 1.15808
1347 E 2 23AP1967 0.06178
1369 A 4 4MY1967 0.14164
1372 C 5 5HY1967 0.12768
1375 E 3 7MY1967 0.13234
1409 A 4 23KY1967 0.10415
1412 C 5 31MY1967 C. 07155
1415 E 3 28MY1967 0.00675
1536 E 2 24SE1S67 0.00818
1387 GS11 12MY1967 C. 01980
1392 6S16 12HY1967 0.01849
1567 6S15 50C1967 0.00159
1575 GS28 60C1967 0.00256
1527 TR 1 20SE1967 0.13836
l=in FR t 24SE1967 O.C2000
1550 MR 1 5UC1967 0.06195
1427 LU 2 29MY1967 0.01211
1399 Pt. 2 5MY19A7 C. 04081
1352 KU 2 21AP1967 0.18038
1404 MO 2 10MY1967 0.01270
46923 CH 22NC1946 C.OC437
46922 CH 21AU1941 C. 00048
46745 EV 3JL1937 C.C2090
46757 EV 25JL1937 C. 29849
46752 EV 15SE1937 C. 39182
46748 EV 130C1937 C.C2135
46768 EV 16MR193B C. 05880
46756 EV 27AP1S38 C.C1175
46766 EV 140E1938 C. 04753
1227 C' 2 13HY1964 C.CC110
1230 E 2 16MV1964 0.01778
1233 B 3 5JN2964 0.00238
1239 D 4 11JN1964 0.10212
1242 E 3 13JN1964 O.C6294
1245 F 2 11JN1964 fl. 00692
1254 D 2 1SJL1964 0.00192
1258 F 1 6JL1964 C. 00472
1268 E 2 15AU1964 O.OC274
1273 C> 2 10SE1964 C. 00538
1285 F 1 15SE1964 C.1C463
1292 D 1 150C1964 0.00373
1305 F 2 HOC 1964 C.OC173
1316 0 6 9NC1964 0.00756
1322 E 6 7N01964 0.02333
1336 C 3 27JA1967 C. 01348
1339 C 5 28MR1967 C. 43649
1342 A 4 19AP1967 C. 58831
1345 C 5 25AP1967 C.45611
1348 E 5 23AP1967 C. 76765
1370 A 6 3MY1967 C. 44424
1373 C 7 5KV1967 C. 99835
1376 E 5 6MY1967 C. 98381
1410 A 6 24MY1967 C. 03383
1413 C 7 25HY1967 0.01264
1416 E 5 28KY1961 C. 01093
1537 E 3 24SE1967 C.OC431
1389 GS13 12MY1967 C. 00516
1358 6522 14HY1967 C.OC607
1571 CS19 60C1967 C. 00059
1522 BH 1 1ESE1967 0.00365
1528 SB 1 20SE1967 C.01444
1651 ES 1 5DC1967 0.01598
1553 SG 1 60CIS67 (,.01469
1418 SH 2 22HY1967 C. 01555
1401 CC 2 6MY1967 0.03528
1353 FR 2 23AP1967 0.01055
1407 SM 2 14MY1967 C. 01194
83
-------
Fvagilaria intermedia var. falias: (Grun.)
Synedra (amphioephala v. ??) fallax Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 39, fig. 16c. 1881.
Fragilaria vauoheviae var. fallax (Grun.) A. Cleve-Euler, K. Svenska
Vet.-Akad. Handl., Fjarde Ser., 4(1):43, figs. 353s-x. 1953.
Valves more elongate and narrower than in the nominate variety,
occasional specimens to 120y long, linear to linear-lanceolate. Other
features essentially as in the nominate variety.
256 FRINTEVl tCl HC CF STAT1CNS 2S6
1
1
1
1
1
(
I
(
<
1
(
1
(
1
6047? CH 1 fl76 '19-811663
3507 CH 19FE1B81 1.81118
46908 CH DE1945 0.2 1148
46914 CH 19AP1946 3.60907
46920 CH 20DE^946 2.91402
46912 CH AP1947 0.90836
46919 CH SJM947 0.00303
46922 CH 21AU1947 0.37802
46741 EV 70JN1917 2.99734
46764 EV 17JL1937 2.48187
46763 EV 23AU1937 3.40909
46752 EV 15SE1937 9.14236
46748 EV 130C1937 3.97096
46768 EV 16MR1938 5.35098
46772 EV 18AP1938 3.57700
46761 EV 27MY1538 2.67088
1224 8 4 1BMV1964 0.07646
1227 C' 2 13MY1964 0.06470
1231 E 3 16MY1964 0.11007
1439 8 6 5JN1964 0.00799
1238 0 3 11JN1964 C. 28000
1241 E 2 13JN1964 0.22770
1244 F 1 11JN1964 0.00768
1248 8 3 24JL1964 0.00197
1254 D 2 15JL1964 0.00958
1258 F 1 6JL1964 0.01416
1261 B 3 2AU1964 0.00196
1265 C' 2 10AU1964 0.00671
1271 C 7 22SE1964 0.00653
1279 £ 1 16SE1964 0.00393
1284 E 6 17SFI964 0.00635
1288 8 3 15CC1964 0.00653
1295 D 4 150C1964 0.00595
1300 E 3 13CC1964 0.00716
1304 F 1 11 nr. 1964 0.00494
1313 0 3 9N01964 0.00386
1317 E 1 6N01964 0.00383
1321 E 5 7N01964 0.00638
1325 F 3 6N01964 0.00252
1338 C 3 28MR1967 0.01983
1341 A 3 19AP1967 0.10197
1344 C 3 25AP1967 0.11581
1347 E 2 73AP1967 0.38046
1369 A 4 4MY1967 0.27582
1372 C 5 5MY1967 0.49652
1375 E 3 7MY1967 0.42109
1409 A 4 23MV1967 0.35410
1412 C 5 31MY1967 C. 58928
1415 E 3 28MY1967 0.31479
1432 A 4 13JN1967 3.03975
1435 C 7 13JN1967 0.38519
1438 E 5 14JN1967 7.87945
1450 C 5 16JL1967 0.06665
1453 E- 3 15JL1967 0.64707
1S11 E 2 1SE1967 0.00614
1537 E 3 24SE1967 0.00863
1540 C 5 40C1467 0.02482
1377 GS 1 9MY1967 5.26420
1«0 GS 4 9HY1967 9.18110
1383 GS 7 10MY1967 12.35030
iqflft CS1C 19MVlQf,7 14.6/ 1 10AU1964 C. 00193
1270 F 1 10AU1964 C. 00272
1278 0 6 18SE1964 0.00384
1281 E 3 16SE1964 C. 00392
1286 F 2 15SE1964 0.01095
1289 C 7 140C1964 C. 00440
1298 E 1 120C1964 C. 01077
1303 E 6 130C1964 C. 10075
1308 C 7 6N01S64 C.CC912
1316 D 6 9NC1964 0.05289
1320 E 4 7N01964 C. 00207
1324 F 2 6N01964 C.OC466
1337 C 3 2MR1967 C.1C876
1340 C 7 28HR1967 C. 06036
1343 A 6 19AP1967 C.C8962
1346 C 7 21AP1967 C. 46733
1368 A 3 4NY1967 C. 43984
1371 C 3 4MV1967 1.18657
1374 E 2 7HY1967 C.50209
1408 A 3 23MY1967 C. 62603
1411 C 3 31MY1967 C. 63185
1414 E 2 2BHY1967 C. 47019
1431 A 3 12JN1967 0.04635
1434 C 5 17JM967 1.15145
1437 E 3 15JN1967 3.01456
1449 C 3 16JL1967 C. 89419
1452 E 2 14JL1967 0.13412
1510 C 7 29A01967 C.00316
1536 E 2 24SE1967 0.03545
1539 C 3 40C1967 C. 01006
1542 E 3 11OC1967 C. 00509
1379 GS 3 9HY1967 4.09879
1382 GS 6 10MV1967 15.34875
1385 GS 9 10HY1967 S. 07610
1388 C-51? 12HV1967 0.«««79
1391 GS15 12MY196? 3.35201
1394 GS18 13MV1967 ?-T?Ti
1397 GS21 13MY1967 C.C2028
1555 GS 2 30C1967 C. 01412
1559 GS 7 40C1967 0.00350
1562 CS10 5CC19t7 C.C1480
1565 CS13 50C1967 C. 01014
1568 GS16 SOC1967 C. 17171
1571 CS19 60C1967 C.OC820
1575 CS2B 60C1967 C.OC516
1546 IU 1 20C1967 C.C1000
( 1523_ DA 1 19SE1967 C. 02768
84
-------
<
J
J
' 1526 NO 1 20SE1967 0.21619
1530 FR 1 24SE1967 0.05001
1552 SH 1 6CC1967 0.13206
1*28 CU 2 29NY1967 0.15668
1427 IU 2 29KYIS67 2.51816
1350 BH 2 19AP1967 0.14097
1401 HO 2 6MV1967 1.97554
1352 KW 2 21AP1967 2.74867
1429 HL 2 29HY1967 0.40344
1405 ES 2 12MY1967 0.25155
1406 GB 2 13HY1967 0.00270
1421 CH 2 23HY1967 0.13879
1424 KN 2 25HV1967 0.46629
1527 TR 1 2CSE1967 C. 27044
1545 HI 1 20C1967 C. 02703
155C MR 1 50C1967 0.30975
1426 MS 2 29HY1967 C.45144
1417 HC 2 22HY1967 2.93106
1425 RA 2 25HY1967 C. 55698
1402 TR 2 6HY1967 2.51245
1353 FR 2 23AP1967 0.29536
1403 CA 2 10HY1967 10.04315
[ 1407 SH 2 14HY1S67 C. 11345
1415 Bli 2 23MY1967 C. 95203
I 1422 GA 2 23MY1967 0.42916
1
1529 KM I 20SE1967 0.02398
1546 CA 1 30C1967 C.C5088
1553 SG 1 60C1967 C. 01469
1351 PI 2 21AP1967 1.34057
1418 SH 2 22HY1967 C.8C871
1399 PM 2 5HY1967 1.3C577
1400 SB 2 6PV1967 2.95449
1354 C-H 2 25AP1967 C. 23302
1404 CC 2 10PV1967 C. 72409
1349 Cl 2 19AP1967 C.6a223
1420 IH 2 23HV1961 C.12C85
1423 HA 2 25HY1967 1.84987
...
leptostauron (Ehr.) Hust.
Bi.blari.wn leptostauron Ehrenberg, Mikrogeol., pi. 12, figs. 25-36. 1854.
leptostauron (Ehr.) Huatedt in: Rabenhorst, Kryptog.-Fl.
Deutschland, 7(2)1:153, figs. 668a-b. 1931.
Cells in girdle view short rectangular, attached by the valve faces
into short, often irregular or disorganized, band-shaped colonies. Valves
lanceolate with extremely expanded centers, larger specimens cruciate in
outline. This central expansion appears as a line or double line, depending
on the level of focus, when the colony is seen in girdle view. Specimens
from Lake Michigan 8-30y long, 7-18ybroad . Striae very coarse, chambered
5-9 in lOy, distinctly cross lineate. Axial area moderafely broad, lanceo-
late in shape. No distinguishable central area is present. This, species
is extremely variable in outline and ornamentation and deformed or abnormal
specimens are common in our collections.
257 FRLEP1CS TOT HC Cf STATIONS 107
(
(
1
1
1
I
I
<
_l
6C973 CH 1876 0.11809
3507 CH 19FE18B1 0.04528
46915 CH 20FE1946 0.03983
46923 CH 22NH1946 0.02404
46909 CH NR1947 0.00455
4*919 CH 5JN1947 0.00910
46758 €V 5JN1937 0.15334
46764 EV 17JL1937 0.10475
46763 EV 23AU1937 0.12175
46760 EV 22SEIS37 0.00985
46748 EV 130C1937 0.40564
46762 EV 1&MR1938 0.15439
46766 EV 14DE1938 0.03169
1J40 D 6 10JN1964 0.05829
1264 C1 1 10AU1964 0.00193
1270 F 1 10AU1964 _Qj,00272
1283 E 5 16SE1964 0.01226
1J97 D 6 14HC1^64 0.003B1
1303 E 6 130C1964 O.CC560
Mia E 2 7ND1964 0.00190
1341 A 3 19AP1967 0.00217
136B A 3 4HY1967 0.00314
1449 C 3 16JL1967 0.00382
1543 E 5 10CC1967 0.00718
1368 C-S12 12HTT1967 0.00603
H44_ G«lia 13MY1967 0.00516
1565 GS13 50C1967 0.01014
1569 GS17 50C1967 0.00892
1574 GS22 60C1967 2.21481
15?^ £h 1 1R^F1967 d.OC^77
1528 SB 1 20SE1967 0.18770
1550 MR 1 50C1967 0.08673
1350 6H 2 19AP1967 0.00661
1403 TR 7 &MY1967 0.22742
1404 HO 2 10MY1967 0.08892
1427 Gi 2 23BY1967 0.01022
( 3540 Ch 11MY1879 0.05125
(46921 CH 23NQ1945 0.00905
146914 CH 19AP1946 O.OOB54
(46920 CH 20DE1946 0.00585
(46916 CH 4MY1947 0.00475
(46907 CH JL1947 0.00937
(46771 EV 11JN1937 0.00475
(46757 EV 25JL1937 0.11073
(46765 EV 30AU1937 0.00558
(46750 EV 24SEIS37 0.01414
(46767 EV 270C1937 0.06189
(46756 EV 27AP1938 0.00336
( 1235 C 7 16JN1964 0.00282
( 1243 E 6 13JN1964 0.09396
I 1265 C' 2 10AU1964 0.00224
( 1271 C 7 22SE1964 0.01306
( 1284 E t 17SE1964 0.02542
( 1300 E 3 130C1964 0.00358
( 1308 C 7 6NQ1964 0.00304
1 1322 E 6 7N01964 0.01666
( 1343 A 6 19AP1967 0.00556
( 1371 C 3 4MY1967 0.00231
I 1536 E 2 24SE1967 0.00273
( 1386 GS10 12HY1967 0.00862
I 1389 G513 12HY1967 0.00516
( 1397 GS21 13HY1967 C. 00065
I 1566 GS14 50C1967 0.00183
( 1570 GS18 5QC1967 0.00992
( 1575 GS28 60C1967 0.00387
( 1536 MO 1 20SF1967 C. 36980
( 1529 KM 1 20SE1967 0.36374
( 1553 SG 1 60C1967 0.10282
I 1399 PH 2 5MY1967 0.08161
( 1400 SB 2 6KY1967 0.14892
( 1407 SH 2 14HY1967 0.20302
( 1423 MA 2 25HY1967 0.00856
<
(
1
<
3541 CH 1FE1881 C. 00978 1
46917 CH 12JA1946 0.00139 1
46924 CH 10MY194e O.OC635
469C5 CH JA1947 0.00245
46906 CH HY1947 C.OC796
46922 CH 21AU1947 0.01357
46743 EV 20JM937 C. 02569
46747 EV 1AU1937 0.05198
46752 EV 15SE1937 C. 17414
46744 EV 60C1937 0.00488
46768 EV 16HR1938 C.C4410
46759 EV 19HY1938 C.OC338
1238 D 3 11JN1964 C.CC2CC
1252 C' 1 16 JL 1964 0.00558
1267 0 6 18AU1964 O.CC216
1279 E 1 16SE1964 0.01571
1285 f 1 15SE1964 0.01165
1302 E 5 130C1964 C. 01215
1317
-------
258 FRLEPTVD TCT NC CF STtTICHS
( 1270
f 1
0.00272 I
( 1569
6S17
50C1967 0.001t9 1 1 1571 GS19
tOC1967 O.OC117 I
I 1950
50C1967 0.06673 ) < 1426
MS 2
29HY1967 0.02100 ) (
260 FRIEPTVR TCT KC CF STtTICNS
19AP1S67 0.00108 1 1 1552
60C1967 C.00660 > L
Fragilaria leptostauron var. fossil-is (Pant.) Kehakova
Stawosira harrisonii var. fossilis Pantocsek, Foss. Bacill. Ungarns,
Vol. 3, p. 95, pi. 5, fig. 77. 1905.
Fragilaria leptostauron var. fossilis (Pant.) ftehakova, Rozpr. Ustred.
Ust. geol. Ceskoslavokia, 32:37, pi.. 11, figs. 17-18. 1965.
The valves of this entity are considerably elongated in the apical
axis and less strongly expanded in the mid portion of the valve than the
nominate variety. The striae are somewhat shortened and a broad, lanceolate,
structureless area occupies the axis of the valves. The maximum size of
this variety exceeds that of the nominate variety, specimens in our material
reaching 45u in length. Structure and direction of the striae essentially
similar to the nominate variety.
259 FRLEPTVF TOT NC CF S14TICNS
( 1567
I 135*
GS15
GH 2
50C1967
Z5AP1967
0.00159 )
0.00*79 1
( 1571
< 1*04
GS19
MO 2
60C1967
10HY1967
C.OOC59 1
0.01270 1
I 1426
J
29MY1967 C.C2100
Fragilax'ia pinnata Ehr.
Fragilam-a pinnata Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:415,
pi. 3(6), fig. 8. 1843,
Cells in girdle view elongate-rectangular to square, attached" by the
valve faces into band-shaped colonies. Colony formation variable sometimes
consisting of only a few cells. Valves variable in outline, linear-elliptic
to elliptic, in the smaller individuals nearly circular. Specimens from
Lake Michigan 5-30y long, 2-6y broad. Striae coarse, chambered, 8-11 in
lOy, distinctly cross lineate. Axial area narrow, linear to very slightly
lanceolate. No specially demarcated central area is present.
This species is scattered in collections taken in nearshore areas in
Lake Michigan. Occasional valves are noted in collections from offshore
areas, especially in the fall months.
?6? FRPINNAT TCT NO OF STATIONS 191
160973
( 3507
1 469 1 5
(46923
14*909
146919
14(758
(46764
146763
(46750
146767
146762
146759
( 1226
1 1735
1 1243
1 1515
( 1267
< 1272
1 1276
CH
CH
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
C 7
C 7
E 6
n 5
0 6
C« 1
O 3
1876
19FE1881
20FE1946
22N01946
HR1947
5JN1947
5JN1937
17JL1937
23AU1937
24SE1937
27QC1937
18MR1938
19HY1938
16MY1964
16JN1964
13JN1964
15JL1964
18AU1964
10SE1964
18SE1964
1.60605
0.01132
0.17641
0.11147
0.07286
0.10925
0.59910
0.34649
0.48701
0.73997
1.40807
3.7C534
0.10466
0.02664
Q.P1412
0.47607
0.00513
0.03026
0,0164J
( 3540
(46921
(46S14
(46920
(46916
<46?C7
(46771
(46757
(46752
(46744
(46749
(46751
(46761
1231
1238
1244
1256
1269
1274
0.01118 ) 1278
CH
CH
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
E 3
0 3
f 1
E 2
E 3
D 1
0 6
11HY1879
23N01945
19AP1946
200E1946
4HY1947
JL1947
11JN1937
25JL1937
15SE1937
60C1937
12CR1938
30MR1938
27KY1938
16PY1964
UJN1964
11JN1964
14JL1964
15AU1964
17SE1964
18SE1964
0.06989 1
0.00517 I
0.02883 )
0.06655 )
0.01561 »
0.05375 )
0.00238 )
0.23109 )
1.52373 )
0.29750 I
0.14565 1
0.62528 )
0.04906 )
0.0024S )
0.00200 1
C. 00110 )
0.00183 )
0.00274 )
0.00938 1
C. 00769 )
1 3541
(46917
(46924
(46905
(469C6
(46922
(46743
(46747
(46760
(46748
(46768
(46756
(46766
( 1232
1 1240
1251
1264
1271
1275
1279
CH
CH
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
E S
D 6
C 1
C« 1
C 7
0 2
E 1
1FEJS81
12JA1946
10HY1946
JA1947
HY1947
21AU1947
20JN1937
1AU1937
22SE1937
13CC1937
16MR1938
27AP1938
140E1938
16MY1964
10JN1964
16JL1964
10AU1964
22SE1964
17SE1964
16SE1964
G. 06647 )
0.01663 )
0.05714 )
0.13605 )
C. 10022 1
C. 03926 )
C.23S79 1
C. 34656 )
C. 08863 >
1.43040 I
C. 17639 )
C. 01343 )
1.1C900 >
0.00348 )
0. 29605 1
C.CC29C )
C.OC193 >
O.C2611 )
G.C0645 )
0.00393 )
86
-------
(
_.
_L2B2 .£ 4 16SE1964 O.Olina )
1285 f I 15SE196* 0.017*7 )
1289 C 7 I*nr.l964 0.00440 1
1297 0 6 140C196* 0.07997 )
1303 E 6 13GC1964 0.15672
1316 D 6 9N01964 0.00756
1321 E 5 7ND1964 O.OC63fl
1340 C 7 2BMR1967 C.43767J
13*3 A 6 19AP1967 0.38905
1347 E 2 23AP1967 0.00163
1369 A 4 4MYIS67 0.01118
1376 E 5 6MY1967 0.00281
1449 C 3 16JL1S67 0.0076*
1512 E 3 1SE1967 0.00393
1534 A 6 19SE1967 0.00620
1538 E 5 23SE1967 1.800B1
1382 CS 6 10MY1967 0.00278
1386 GS10 12MY1967 0.00575
1389 GS13 12MY1567 0.07220
LJ392 GS16 12MY1967 0.09862
1395 GS19 13MY1967 0.00939
139fi GS22 14MY1967 1.06263
1556 GS 3 3QC1967 0.02607
1559 GS f 40C1967 0.02448
1563 GS11 50C1967 0.00701
1566 GSl* 50C1967 0.00917
1569 GS17 50C1967 0.02676
1572 GS20 60C1967 0.4HJA
1575 GS28 60C1967 0.45157
1524 MI 1 20SE1967 0.08757
1521 SH 1 18SE1967 0.0115*
1525 PW 2CSE1967 0.27851
152B SB 20SE1967 13.62980
1551 ES 5DC1967 0.01598
1553 SG 60C1967 3.17274
1417 HO 2 22MY1967 0.108*2
1455 R4 2 25MY1967 O.D176B
1402 TR 2 6PY1967 8.*9036
1353 FR 2 23AP1967 0.04219
1405 ES 2 12MY1S67 0.03225
[ 1406 GB 2 13MY1967 O.OC270
( 1*23 HA 2 25MY1967 0.13703
12B3 E 5 16SEK1A4 0 01 R3Q
1286 F 2 15SE196* 0.01095
129<* D 3 150C196* C.OD^n
1299 E Z 120C196* 0.0031*
130* F 1 110C194* r.nn404
U18 E 2 7N0196-* C.C0190
[_L322 E 6 7N0196* c.njOQQ
1338 C 3 28MR1967 O.C026*
13*1 A 3 19AP1967 0.00542
13*5 C 5 25AP1967 0.00195
-13*8 E 5 23AP1967 C. 00960
1370 A 6 3P.Y1967 0.04143
1408 A 3 23MY1967 0.00*47
1*52 E 2 14JL1967 0.00639
1532 A 3 18SE1967 0.00329
1536 E i 2*SE1967 C. 01909
15*1 E 2 110C1967 C.0106*
1383 GS 7 10MY1967 0.00802
1387 GS11 12HY1967 C. 38419
1390 GSl* 12NY1967 0.01762
1393 GS17 13HY1967 0.01A44
1396 GS20 13HY1967 0.13762
155* GS 1 3CC1967 C. 01779
1557 GS 4 30C1967 0.06353
1560 GS 8 *OC1967 C. 01417
1564 GS12 50C1967 0.00329
1567 GS15 50C1967 0.1111*
1570 GS18 50C1967 0.03967
1573 GS21 6CC1967 0.22398
15** HU 1 20C1967 0.00715
15*6 LU 1 20C1967 0.03001
1522 BH 1 18S61967 0.03100
1526 HO 1 20SE1967 40.32542
1529 Kti 1 20SE1967 36.6*708
15*5 InL 1 20C1967 3.89215
1552 SM 1 60C1967 6.97260
1426 MS 2 29HY1967 0.08399
1*18 SH 2 22MY1967 C. 45101
1399 PVi 2 5^1(1967 1.52339
1*00 SB 2 6HY1967 2.76388
1354 GH 2 25AP1967 0.01899
1*07 SH 2 1*HY1967 5.25*67
1421 Ch 2 23MY1967 0.01735
1*2* KN 2 25fY1967 0.06661
1287 F 3 15SE196* C. 00500
1302 E 5 130C156* 0.12552
1320 E 4 7NG1964 0.00207
L339 C 5 28HR1967 C.OC312
13*6 C 7 21AP1967 C.OC801
137* E 2 7MY1967 C.OC299
1*13 C 7 25PY1967 C.OC632
1508 C 3 2SE1S67 C.CC400
1533 A 4 19SE1967 C. 01393
1537 E 3 2*SE1967 C.C1725
15*3 E 5 100C1967 C. 12211
138* GS 8 10PV1967 C. 01109
1388 CS12 12HY1S67 0.01207
1391 GS15 12KY1947 C.C1915
1394 GS18 13MY1967 C.C2580
1397 GS21 13HY1967 C.CC9B1
1555 GS 2 30C1967 C.OC353
1558 GS 5 40C1967 C.3C918
1562 GS10 50C1967 C.CC493
1565 CS13 50C1967 C. 44620
1568 GS16 50C1967 C. 05195
1571 GS19 60C1967 C. 21893
1574 GS22 6QC1?67 7.4*981
15*7 f>S 1 20C1967 C.OJ395
1520 hG 1 1ESE1567 C.*2B*9
1523 RA 1 19SE1967 C. 018*5
1527 Tfl 1 20SE1967 59.6729*
1530 FR 1 2*SE1967 C. 20002
1549 PO 1 4CC1967 C. 0*111
1550 PR 1 50C1967 13.08388
1351 M 2 21AP1967 C.1C2*0
1350 BH 2 19AP1567 C. 2*669
1*01 KO 2 6MY1967 9.C210*
1352 KU 2 21AP1967 3.29840
l*C4 P6 2 10MY1967 C.6C976
( 13*9 CI 2 19AP1967 0.17243
C 1*22 CA 2 23PY1967 C. 02555
(
pinnata var. -interoedens (Grun.) Hust.
mutdb-ile var. -intercedens Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 45, fig. 13. 1881.
Fvagilar-La pinnata var. -interoedens (Grun.) Hustedt in: Rabenhorst,
Kryptog.-Fl. Deutschland, 7(2)2:161. 1931.
Distinguished from the nominate variety by its strictly linear shape,
more robust structure and wider axial area. Striae 6-9 in Hty, shorter
than in the nominate variety.
The status of this entity is questionable. Its morphology, except for
the lack of marginal spines and presence of cross lineation in the striae,
is very similar to the linear forms of F. spinosa Skv. The relationship
between F. rmtabile (Mm. Smith) Grun., F. pinwata Ehr. and their numerous
described varieties and Skvortzow's taxon should be critically reexamined.
fCSPFCOD TCT NC
STAT1CH5 3jJ_
146907
C 46768
1 1388
( 1526
< 1418
I linj
CH
EV
6S12
MO 1
SH 2
JL19*7
16MR1938
12MY1S67
20SE1967
22MY1S67
0.00107
0.001*8
0.01470
0.00318
0.00603
O.C3982
0.06221
(4652C
[*6758
(46748
1*6762
13*3
1398
157*
1527
1550
1399
1 < 1352
CH
EV
EV
EV
A 6
GS22
GS22
TR 1
MR 1
Ph 2
Kh 2
200E19*6
5JN1937
13OC1937
1SMR1938
19AP1967
14NY1967
6DC1967
20SE1967
5QC1967
5HY1967
21AP1967
C. 00031
0.00713
0.04270
0.02206
0.00139
0.0030*
C. 04315
0.05660
0.01239
0.00680
0.00859
(46906
(*676*
(46767
(46751
( 1387
( 156.7
( 1525
< 1528
( 1351
( 1401
1 1407
CH
EV
EV
GS11
FU 1
PI 2
S« 2
MY1947
17JL1937
270C1537
12HY1967
20SE1967
21AP1967
14MY1967
C. 00066 )
C.OC367 )
C. 01188 )
C.02785 )
0.00310 1
C.0119* )
87
-------
Fragilaria pinnata var. lanoettula (Schum.) Hust.
Fragilaria lancettula Schumann, Schrift. Phys.-Okon. Ges. Konigsberg,
pi. 1, fig. 4. '1867.
Fragilaria pinnata var. lanoettula (Schum.) Hustedt in: A. Schmidt,
Atlas Diat., pi. 297, figs. 51, 59-64. 1913.
Valves lanceolate with more or less gibbous midportions and protracted,
often somewhat unequal ends. Morphology and ornamentation of the frustule
essentially similar to the nominate variety.
263 FRPINNVL TOT NO OF STATIONS 67
(
60973 CH 1876 0.07085
469?3 CH 22NQL946 0.00219
46907 CH JL1947 0.00049
1264 C> 1 1CAU1964 0.00386
1797 0 6 140C1964 0.01142
1343 A 6 19AP1967 0.00347
1387 GS11 12MYJLS67 0.00792
1398 GS22 14MY1967 0.00304
1557 GS 4 30C1967 0.00374
1567 GS15 5QC1967 0.00159
1571 ES19 60C1«,7 0.00117
1574 GS22 60C1967 0.00288
1S22 BH 1 18SE1967 0.00729
1526 MO 1 20SE1967 1.51903
1529 KH 1 20SE1967 2.6B617
1552 SM 1 60C1967 0.13206
1426 MS 2 29MY1967 0.02100
1350 BH 2 19AP1967 0.05947
1402 TR 2 6MY1967 0.12454
13S4 GH 2 25AP1967 0.00518
1407 SM 2 14MY1967 0.16719
1423 MA 2 25PY1967 0.00856
(
I
46921 Ch 23N01945 C. 00129
46S20 CH 200E1946 0.00062
46922 CH 21AU1S41 C. 00048
1243 E 6 13JN1964 0.01462
1272 C' 1 10SE1964 C. 00410
1301 E 4 13QC1964 0.00442
1536 E 2 24SE1967 0.00273
1396 GS20 13MV1967 0.00296
1554 GS 1 30C1967 0.00356
1560 GS 8 40C1967 0.00472
1569 G517 50C1967 0.00149
1572 GS20 60C1967 0.00631
1546 LU 1 20C1967 0.01501
1523 BA 1 19SE1967 «. 00923
1527 TR 1 20SE1967 8.15094
1545 hL 1 20C1967 0.21623
1550 MR 1 50C1967 0.33453
1351 MI 2 21AP1967 0.00310
1399 PH 2 5MY1967 0.01360
1400 SB 2 6HY1967 0.00596
1404 MS 2 10MY1967 0.16514
1349 CI 2 19AP1967 0.00359
^917 CH 12JA1946 C.OC028
4*ofl5 CH JA1947 C.OC245
I229 0 5 14MY1S64 C.UC^ll
,,44 F 1 1UN1964 C.CC110
~1278 0 6 18SE1S64 C.OC384
1302 E 5 130C1964 0.00405
1385 £5 9 10MY1967 C.OC471
1397 GS21 13HY1967 C.00131
1555 GS 2 30C1967 C. 00353
1565 GS13 50C1561 C. 04056
1570 CS18 50C1967 C. 00992
1573 «S21 60C1967 C.OC224
1520 HO 1 18SE1967 O.CC943
1525 PM 1 20SE1967 C.C8355
1528 SB 1 20SE1961 C. 69304
1551 ES 1 50C1967 0.00799
1553 SG 1 60C1967. 0.03672
1417 KO 2 22MY1961 C.CC748
1401 KO 2 6HY1967 0.11759
1352 KM 2 21AP1967 C. 06013
1405 ES 2 12MY1967 C. 01290
1420 IH 2 23MV1967 C. 01511
Fragilaria spinosa Skv.
Fragilaria mutdbilis var. robusta Skvortzow and Meyer, Proc. Sungaree
River Biol. Station, 1:7, pi. 1, fig. 8. 1928.
Fvagilaria spinosa Skvortzow, Phillipine J. Sci., 37:307, pi. 1, figs.
27; pi. 4, figs. 13, 19; pi. 5, figs. 54, 59. 1937.
13,
Cells in girdle view elongate-rectangular, attached by the valve faces
into band-shaped colonies. Membranous spines arising from the valve margin
overlap the adjacent cell. Valves highly variable in outline, linear-ellip-
tic to lanceolate, often more or less gibbous near the center. Specimens
from Lak6 Michigan 25-46y long, 5-8y broad. Striae very coarse, chambered,
not extending to the midline of the valve, 5-8 in lOy, without visible sub-
structure. A submarginal spine is visible between each of the striae.
Axial area broad, more or less lanceolate, without visible structure. No
specially demarcated central area is present.
Our specimens from Lake Michigan are uniformly narrower than those ori-
ginally described by Skvortzow, length-width ratios being about 1/5-1/6
rather than 1/3.5-1/5 as in the Lake Baikal material. The structure and
ornamentation of the frustule in our specimens is essentially identical to
the specimens described by Skvortzow.
This species is rare in our collections, and its recorded distribution
indicates that it is a member of the periphyton community in relatively deep
water.
Coll: 1395.
88
-------
Fragilaria vauoheviae (Kutz.) Peters.
Exilcafia vauaheriae Kutzing^Linnaea, 8:560, pi. 15, fig. 33. 1333
Synedra vauoheriae (Kutz.) Kutzing, Bacill., p. 65, 'pi 14f4) f iocs'
1, 2a, 3. 1844. ' 8
Fragilaria vauaheriae (Kutz.) Peterson, Bot. Not. 1938 (1/3) -167 fi°s
la-b. 1938. ' & *
Cells in girdle view linear, united by the valve faces into band-shaped
colonies of variable length. Valves elliptic-lanceolate to lanceolate with
more or less protracted, usually rostrate, ends. Specimens from Lake Michi-
gan 8-30y long, 3-4. 5y broad. Axial area narrow, central area unilateral,
usually noticeably thickened on its margins. Striae distinct, parallel
throughout the length of the valve, 14-16 in
This entity is common in periphyton collections but only occasional
specimens are noted in plankton collections from Lake Michigan. In general
aspect it resembles F. intermedia but is distinguished from that species by
its finer striae, less strongly silicified frustule, and the presence of a
distinctly thickened border around the central area.
4S6. SVVAUCHF TCT NO OF STATICH5 149
_J
1 «40 TH 11MY18T3 0.00466
46921 CH 23N01945 0.00259
146915 CH 20FE1946 0.04552
146923 CH 22N01946 0.01748
46912 CH AP1947 0.01150
146919 CH 5JN1947 0.49316
(46758 fv 5JN1937 8.18772
(46745 EV 3JL1937 0.06270
(46757 EV 25JL1937 0.58736
146765 EV 30AU1937 0.02789
(46750 EV 24SE1937 0.29222
(46768 EV 16HR1S38 0.07350
(46759 EV 19MY1938 0.02026
1236 C" 1 8JN1964 0.00175
1243 E 6 13 JN 1964 0.00626
1246 F 3 11JN1964 0.01793
1259 F 2 6JL1964 0.00310
1266 D 3 1BAU1964 0.00351
1270 F 1 10AU1964 0.00272
1279 E 1 16SE1964 0.01178
1298 E 1 120C1964 0.00539
1304 F 1 110C1964 0.00247
1319 F 3 7NQ1964 0.00262
1343 « 6 19AP1967 0.00208
1432 A 4 13JN1967 0.00255
1508 C 3 2SE1967 O.C0400
1536 E 2 24SE1967 0.00818
1540 C 5 40C1967 C.OC496
1543 F 5 100C1967 0.01437
1382 GS 6 10MY1967 0.01388
1392 GS16 12MY1S67 0.00308
1396 GS20 13HY1967 0.00148
1554 GS 1 30C1S67 0.02491
1557 GS 4 30C1S67 0.02242
15fc6 G514 50C1967 0.00183
1570 GS18 50C1967 0.01983
1574 CS77 60C1967 0.07766
1547 «S 20C1967 0.09581
1520 Ml 18SE1967 0.02829
1523 BA 19SE1967 0.00923
1528 SB 20SE1967 0.15882
1545 WL 20C1967 21.73119
1551 ES 50C1967 0.00799
1553 SO 60C1967 0.03672
1417 HO 2 22MY1S67 0.01495
1399 PU 2 5MY1967 0.04081
• l^SJ KU •> 21AP1967 0.07731
1403 CA 2 10MY1967 2.30156
1407 CM 7 14MV1967 0.04777
1419 BU 2 23MY1567 0.01831
( 3541 CH IFEiaai 0.00978
(46908 CH DE1945 0.02014
(46514 CH 19AP1946 0.01602
46920 CH 200E1946 0.00246
(46916 CH 4MY1947 0.01221
(46907 CH JL1947 0.00148
(46771 EV 11JN1937 0.01189
(46770 EV 9J4.1937 1.10925
(46747 EV 1AU1937 C.46043
(46752 EV 15SE1937 0.23944
(46748 EV 130C1937 0.10675
(46762 EV 18NR1938 0.24261
(46761 EV 27MV193B 0.00818
1237 C1 2 8JN1944 0.00258
1244 F 1 11JM964 0.014Z5
1252 C' 1 16JL1964 0.00279
1264 C' 1 10AU1964 0.02124
1268 E 2 15AU1964 C. 00547
1274 D 1 17SE1964 C.00938
1284 E 6 17SE1964 0.00318
1299 E 2 120C1964 0.00314
1316 D 6 9N01964 C. 00378
1320 E 4 7M31964 0.00207
1374 E 2 7HV1967 0.00299
1451 C 7 16JL1967 0.00197
1511 E 2 1SE1967 0.00307
1537 E 3 24SE1967 0.00431
1541 E 2 1 ICC 1967 0.04790
1379 GS 3 9XY1967 C. 00309
1384 GS 8 10MY1967 0.00185
1394 GS18 13HY1967 0.01032
1397 GS21 13HY1967 0.00196
1555 GS 2 3CC1967 0.00706
1562 GS10 50C1967 0.00493
1568 GS16 5QC1967 0.00144
1572 GS20 60C1967 0.00270
1575 GS2B 60C1967 0.00387
1524 HI 20SE1967 0.08757
1521 SH 1SSE1967 0.02308
1526 MO 20SE1967 0.12516
1529 KM 20SE1967 2.49430
1548 CA 30C1967 0.01272
1552 SM 6CC1967 0.01981
1428 m 2 29HY1967 0.00603
1350 BH 2 19AP1967 0.07929
1402 TR 2 6HY1967 0.02707
1354 GH 2 25AP1967 0.00345
1404 HC 2 10HY1967 0.07622
1349 Cl 2 19AP1967 0.00359
1420 IH 2 23HV1967 0.03021
[46910 CH nriS45 C. 00437
46917 CH 12JA1946 0.00305
[46924 CH 10HY1946 C. 02540
46909 CH MR1947 C. 02277
46906 CH HY1947 C. 00796
46922 CH 21AU1947 0.00630
[46743 EV 20JN1937 C. 40250
46764 EV 17JL1937 2.11120
46763 EV 23AU1937 4.18019
146760 EV 22SE1937 C. 10340
46767 EV 270C1937 C. 05029
(46756 EV 27AP1S36 O.OC336
46766 CV 140E1938 0.07921
1240 0 6 10JN1964 C.C0460
1245 F 2 11JN1964 C. 02075
1255 0 5 15JL1964 C. 00513
1265 C< 2 10AU1964 O.OC894
1269 E 3 15AU1964 0.00274
1275 0 2 17SE1964 0.00645
1285 F 1 15SE1964 O.C6406
1301 E 4 13QC1964 C.OC442
1318 E 2 7N01964 0.00380
1341 At 3 194P1967 C.C0108
1410 A 6 24MY1967 C. 00564
1454 E 5 15JL1967 C. 00200
1534 A 6 19SE1967 C.CC310
1538 E 5 23SE1967 0.09943
1542 E 3 110C1967 C. 03051
1380 GS 4 9MY1967 C. 00168
1387 6S11 12MY1967 C. 08714
1395 GS19 13MY1967 C.CC235
1398 GS22 14MY1967 0.00607
1556 GS 3 3DC1S67 C.OC521
1565 GS13 5OC1967 C. 02535
1569 C-S17 50C1967 C. 00149
1573 GS21 60C1967 0.00112
1544 KU 1 20C1967 C. 10246
1546 LU 1 20C1967 1.28045
1522 BH 1 18SE1967 C. 00365
1527 TR 1 20SE1967 0.30189
1530 FR 1 24SE1961 C. 33003
1549 ttfl 1 40C1967 C. 04111
1550 KR 1 50C1967 0.35931
1427 LU 2 29MY1967 0.03632
1425 RA 2 25HY1967 C. 00884
1400 SB 2 6NY1967 0.02383
1429 kL 2 29MY1961 C. 04247
1405 ES 2 12MY1967 C. 03225
1406 C-B 2 13HY1967 0.02965
89
-------
vaucheriae var. oapitellata (Grun.) Patr.
Synedra capitellata Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 40,
fig. 26. 1881.
Synedva vauoheriae var. oapitellata (Grun.) Cleve, J. Linnean Soc. London,
Bot., 20:314. 1883.
Fragilaria vaueheriae var. oapitellata (Grun.) Patrick, Akad. Nat. Sci.
Philadelphia Monogr. 13:121. 1966.
Valves lanceolate with subcapitate to capitate ends. Specimens from
Lake Michigan 15-50p long, 3-4y broad. Striae somewhat finer than in the
nominate variety, 14-18 in lOy. Other features of morphology and ornamen-
tation of the frustule essentially similar to the nominate variety.
This entity is quite common in plankton collections from Lake Michigan.
It is somewhat questionable that forms having a much expanded central area
such as illustrated by Patrick (Patrick and Reimer 1966) belong to this taxon.
697 SYVAUCVC TOT NO OF STATICNS 39
46917
If, 000
46758
46747
1244
1260
1265
1511
1387
1561
1567
1526
1550
CH
CH
EV
EV
F 1
F 3
F I
E 2
GS11
GS 9
GS15
MO 1
MR I
12JA1946
HR1947
5JN1937
IAU1937
11JN1964
6JL1964
15SE1964
1SE1967
12MY1967
4DC1967
SOC 196 7
20SE1967
50C1967
0.00028
0.00455
0.93431
0.00495
O.OC219
0.00573
0.04659
0.00307
0.01188
0.00587
O.OOL59
0.0056S
0.02478
(46914
(46912
(46743
146763
( 1258
1279
1297
1379
1388
1563
1574
1549
1403
CH
CH
EV
EV
F 1
E 1
D 6
GS 3
GS12
GS11
GS22
MO 1
C« 2
19AP1946
AP1947
20JM937
23AU1937
6JL1964
16SE1964
140C1964
9PY1967
12MY1967
5CC1967
60C1967
40C1967
10MY1967
0.00107
0.01150
0.00856
0.04058
0.00708
0.00785
0.00190
0.00619
0.00603
0. 00234
0.00863
0.01370
C. 32693
(46923
(46916
•46745
(46752
( 1259
I 1281
1510
1382
1557
1565
1546
1552
1404
CH
CH
EV
EV
f 2
e 3
C 7
GS 6
CS 4
GS13
LU 1
SH 1
CO 2
22N01946
4MY1947
3JL1937
15SE1937
6JL1964
16SC1S64
29AU1967
10HY1967
30C1967
50C1967
20C1967
60C1967
10MY1967
C. 0021.9 )
C. 00170 )
0.04180 )
C.C6530 )
C.CC62C >
C.OC392 )
C. 00316 )
C.0027B )
C. 00374 I
C.CC507 )
0.00500 )
C.CC66C 1
C. 07622 )
vaadheviae var. tTunoata (Grev.)
Ex-ilaria truncata Greville, in: Pritchard, Hist. Infus., p. 789. 1861.
Synedra vaucheriae var. trunoata (Grev.) Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 40, fig. 20. 1881.
Valves linear with rostrate to subcapitate apices. Other features of
the morphology and 'ornamentation of the frustule essentially similar to the
nominate variety.
This entity is relatively rare in our collections. Previous reports
indicate that it finds its primary habitat in the periphyton.
699 SYViLCVT TCT HC Cf STAT1CNS
( 1265
1CAU1964 0.00224 1 ( 1341
19AP1967 0.00217 I
Species inoertae sedis
Fragilaria sp. #1.
266 FRSPECCA TCT NC CF ST4TICNS
I 1565
I 1354
GS13
GH 2
50C1967
25AP1967
0.04563 I
0.00173 )
I 155C MR 1
( 1404 MO 2
5CC1967
10PY1967
0.06195 I
0.03811 I
I 1350
( 1420
BH 2
1H 2
19AP1967
23HY1967
C.01101 I
C.10574 >
90
-------
Fragilaria sp. #7.
270 FRSPECOG TCT NO OF STATIONS 223
160973 CH 1876 0.37789 ) ( 3540 .CH 11CY1879 0.01864
(46910 CH OC1945 0.00982 ) (46521 CH 23N01945 C.PSJJ5
(46917 CH 12J.A1546 0.02246 )
(46924 CH 10MY1946 0.02116
146905 CH JA1947 O.C3922
146916 CH" 4MY1947 1.38939
(46907 CM JL1947 1.185S4
(46771 EV 11JN1937 0.01426
(46770 EV 9JL1937 0.27433
(46747 EV IAU1937 0.01238
(46769 EV 7SE1537 0.02171
(46767 EV 270C1937 0.00774
(46762 EV 18HR1938 0.08822
146761 EV 27MY1538 O.OOfllS
—
1440 B 6 11JL1964 0.13266
1251 C 7 16JL1964 0.01159
1254 0 2 15JL1964 0.01532
1257 E 3 14JL1964 0.04307
1260 F 3 6JL1964 2.00946
1444 8 6 19SE1964 0.04244
1273 C1 2 10SE1964 0.26883
1276 D 3 18SE1964 0.04470
1279 E 1 16SE1964 C. 07066
1282 E 4 16SE1964 0.58726
1285 F 1 15SE1964 0.54743
1445 B 6 14CC1964 0.00978
1297 0 6 140C1964 0.00762
1305 F 2 110C1964 0.00518
1310 C' 2 10N01964 0.00227
1317 f 1 6N01964 0.00383
1320 E 4 7N01964 0.01241
1323 F 1 6N01964 0.32613
1337 C 3 2MR1567 0.00882
J340 C 7 28MR1967 0.0029L
1343 A 6 19AP1967 0.00417
1346 C 7 21AP1967 0.00534
1368 A 3 4MY1967 0.01571
1371 C 3 4MY1967 0.00693
1374 E 2 7MY1967 0.02092
1408 A 3 23MY1967 0.02683
1411 C 3 31MY1967 0.01641
1AL4 E_2 28MY1967 0.01679
1431 A 3 12JN1967 0.03605
1434 C 5 17JN1967 6.0C299
1437 E 3 15JN1967 0.00269
1447 A 4 11JL1967 0.57307
1450 C 5 16JL1967 0.66648
1505 A 4 28AU1967 0.19582
1509 C 5 2SE1967 1.15070
1512 E 3 1SE1967 0.13743
1533 A 4 19SE1967 0.13462
1536 E 2 24SE1967 0.20178
1539 C 3 40C1967 0.00503
1542 E 3 110C1967 0.04068
1379 GS 3 9MY1967 0.01547
1382 GS 6 10MY1967 0.00555
1389 GS13 12MY1567 0.00516
1392 GS16 12MY1567 0.00616
1398 GS22 14MY1967 0.01214
1556 GS 3 30C1967 0.07822
1559 GS 7 40C1967 0.30776
1562 GS10 50C1967 0.29358
1566 GS14 5QC1967 0.00734
1569 GS17 50C1967 0.08770
1573 GS21 60C1967 0.01008
1546 LU 1 2DC1967 0.01501
1528 SB 1 20SE1967 0.05775
1549 MO 1 40C1S67 0.12334
1426 MS 2 29MY1967 0.02100
1399 PU 2 5MY1967 0.29244
1400 SB 2 6MY1967 0.37527
1403 CA 2 10KY1967 1.21616
1407 SM 2 14MY1967 0.01194
147O IH 2 23MY1967 0.09063
1424 KN 2 25HY1967 0.06661
I4CV19 tH 20FE1946 0.11950
(46523 CH 22N01946 0.07868
(465C5 CH MR1947 0.05464
(469C6 CH HY1947 1.16478
146513 CH 6AU1947 0.04184
(46743 EV 20JN1937 0.59947
(46764 EV 17JL1937 0.05641
(46763 EV 23AU1937 0.87256
146760 EV 22SE1937 C. 01477
(46749 EV 12MR1938 0.02427
(46151 EV 30MR1938 0.02233
(46766 EV 14DE193S 0.03169
( 1441 E 6 24JL1964 0.03965
1 1252 C1 1 16JL1964 0.10042
i
1255 D 5 15JL1964 0.09753
1258 F 1 6JL1964 C. 33037
1442 B 6 2AU1964 1.43296
1271 C 7 22SE1964 C. 00653
1274 0 1 17SE1964 0.50673
1277 D 4 18SE1914 C.C8675
1280 E 2 16SE1964 0.30635
1283 E 5 16SE1964 C. 66201
1286 f c 15SE1964 0.18608
1293 D 2 15CC1964 0.01415
1300 E 3 13DC1964 0.00716
1306 F 3 110C1964 0.01109
1311 D 1 8NQ1964 0.00774
1318 E 2 7NE1964 C.665B7
1321 E 5 7N01964 0.02554
1324 F 2 6KC1964 0.09783
1338 C 3 28MR1967 0.00264
1341 A 3 19AP1967 0.00434
1344 C 3 25AP1967 0.00331
1347 E 2 23AP1967 C. 00813
1369 A 4 4HY1S67 C. 00373
1372 C 5 5HY1967 0.00709
1375 E 3 7MY1967 0.01203
1409 A 4 23MY1967 0.04463
1412 C 5 31MY1967 0.02105
1415 E 3 28MY1967 C. 01124
1432 A 4 13JN1967 0.28609
1*3* £ 7 J3JN1967 0.01579
1438 E 5 14JN1967 0.00726
1448 , A 6 10JL1967 0.00354
1452 E 2 14JL1967 C. 01064
1506 A 6 29AU1967 0.01569
1510 C 7 29AU1967 0.04110
1513 E 5 31AU1967 0.10135
1534 A 6 19SE1967 0.00310
1537 E 3 24SE1S67 C. 06038
.1540 C 5 40C1967 0.01985
1543 E 5 100C1967 0.04310
1380 GS 4 9HY1947 0.00841
1386 GS10 12MY1967 0.00287
1393 GS17 13MY1967 C. 01096
1554 GS 1 3DC1967 0.03202
1557 GS 4 30C1967 0.28774
1560 GS 8 40C1967 0.07084
1563 GS11 5QC1967 0.00935
1567 GS15 5DC1967 0.04922
1570 GS18 50C1967 0.02975
1574 GS22 60C1967 0.02301
1521 SH 1 18SE1967 0.01731
1529 Kh 1 20SE1967 0.02396
1551 ES 1 50C1967 0.45531
1417 HO 2 22HY1967 0.00748
1401 MO 2 6MY1967 0.04704
1352 Kh 2 21AP1967 0.21474
1404 MC 2 10MY1967 0.06352
1349 CI 2 19AP1967 0.02155
1421 CH 2 23MY1967 0.08675
I 3541 CH 1FE1881 C. 22498 )
(46908 CH DE1945 C. 46324
(46914 CH 19AP1546 C.OC427
(46920 CH 200E1946 1.24165
146912 CH AP1941 C. 24146
(46922 CH 21AU1947 C.5C403
(46745 EV 3JL1937 0.04180
(46757 EV 25JL1937 C. 01444
(46765 EV 30AU1937 C.OC558
(46744 EV 60C1937 C.OC488
(46768 EV 16MRlC3fl C-fSQRn
46756 EV 27AP1538 C.OC5C4
1435 B 6 5JN1964 C. 02198
1250 C 6 10J11964 C. 25899
1253 C* 2 16JL1964 C.OC913
1256 E 2 14JL1564 0.01649
1259 F 2 6JL1564 C. 39353
1443 B 6 16AU1964 1.79892
1272 C1 1 10SE1564 C.3C374
1275 0 2 17SE1964 C.9C317
1278 0 6 18SE1964 C.C2690
1281 E 3 16SE1964 3.02162
1284 E 6 17SE1964 0.25736
1287 F 3 15SE1964 0.59548
1296 D 5 14QC1964 0.00787
1304 F 1 110C1964 C. 00988
13C8 C 7 6NG1964 0.00912
1312 D 2 8MC1964 C.OC310
1319 E 3 7N01964 0.00524
1322 E 6 7NC1564 C.C2000
1336 C 3 27JA1567 0.01348
1339 C 5 28HR1967 0.01247
1342 A 4 19AP1967 C. 02707
1345 C 5 25AP1967 C. 00585
1348 E 5 23AP1967 C. 01508
1370 A 6 3MY1967 C.C3222
1373 C 7 5KY1967 0.00285
1376 E 5 6MY1967 O.C3935
1410 A 6 24MY1967 C. 07894
1413 C 7 25MY1967 C. 01264
1416 E 5 28MY1967 C. 01093
1433 C 3 17JM96! C-C1938
1436 E 2 15JN1967 O.OC724
1446 A 3 1UL1967 0.00978
1449 C 3 16JL1967 0.02675
1454 E 5 15JL1467 C. 28006
1508 C 3 2SE1967 C. 07194
1511 E 2 1SE1967 0.04604
1532 A 3 18SE1967 C.CE213
1535 C 7 20SE1967 0.01288
1538 E 5 23SE1967 C. 01657
1541 E 2 110C1967 C. 04257
1377 GS 1 9HY1967 C.OC792
1381 CS 5 10MY1967 C. 01431
1387 ESll 12MY1967 C.OC792
1394 GS18 13MY1967 C. 00344
1555 GS 2 30C1967 C. 06356
1558 GS 5 40C1967 0.20612
1561 CS 9 40C1567 C. 08804
1564 GS12 50C1967 C. 15965
•1568 GS16 5QC1967 C. 03896
1571 GS19 60C1967 C.OC176
1547 KS 1 20C1567 C. 54291
1526 PC 1 20SE1967 C.C1707
1548 CA 1 30C1967 1.60285
1550 PR 1 5QC1967 0.01239
1425 RA 2 25MY1967 C. 01768
1402 TR 2 6MY1567 C. 02166
1354 GH 2 25AP1967 0.00690
1405 ES 2 12MY1S67 C.C1290
1419 BU 2 23MY1967 0.07323 )
1422 C-A 2 23CY1967 C. 01533 )
Fragilaria sp. #8 (F. arotonensis erstlingzellen ?),
271 FRSPECOH TCT NO OF STATIONS 28
60973
46747
1260
1315
1451
1423
CH
EV
F 3
0 5
C 7
UA 2
1876
9JL1937
1AU1937
27QC1937
6JL1964
9NO1964
6NQ1964
16JL1967
25MY1967
0.30704
0.02385
0.00743
O.OC774 1
0.00191
0.22474
0.00455
0.2439Q
0.03937
0.00428
(46513
(46764
(46750
(46761
1443
1305
1316
1324
1383
CH
EV
EV
EV
B 6
F 2
C 6
F 2
SS 7
6AU1947
17JL1937
24SE1937
27KY1938
16AU1564
HOC 1964
9N01964
6N01964
10MY1967
C. 01046
0.04835
C. 00471
0.00273
C. 00198
Ci02243
C. 01133
0.19332
0.00267
(46771
(46757
(46744
(46766
( 1270
1 1306
( 1318
( 1325
( 1387
EV
EV
EV
EV
F 1
F 3
E 2
F 3
GS11
11JN1937
25JL1937
60C1937
14DE1938
10AU1964
110C1964
7N01964
6N01964
12HY1967
C.CC238 1
0.00481 )
C.OC488 1
0.03169 )
C.OC817 )
C.01109 1
C.C0380 )
0.23678 )
C.OC396 )
91
-------
Fragilaria sp. #9.
72 FRSPFCDI TE1 NO Of STATIONS 15
4*0 IS CH 20FE1946 0.01138 1
467*3 EV 20JN1937 0.00856 ) 1
4679? EV 15SE1937 0 02177 1
1260 F 3 6JL1964 0.00573 )
17H5 F 1 15SE1964 C. 09900 1 I
Fragilaria sp. #10.
46924 CH 10MY1946 0,00071 ) t
46922 CH 21AU1947 0.00048 I (
1259 F 2 6JL1964 C.C0930 1 <
1404 MO 2 10HY1967 0.02541 ) (
vragilaria sp. #11.
74 FRSPECCK TCT NO OF SUTIONS 4
46909 CH MR1947 O.OC455 1 (
1530 FR 1 24SE1967 H.0100C ) (
Fpagilari-a sp. #15.
J7S FRSPECOO TCT KC OF STATIC** 1
I 1406 GB 2 13KY1967 O.CC27C )
46S16 CH 4MY1S47 0.00271 1 146919 CH 5JN1947
46757 EV 25JL1937 0.00481 1 146763 EV Z3AUl«I
i;5B F i 6JL1964 0.03540 > 1 1259 F 2 6JL1964
127Z C- 1 10SE1964 0.00410 1 < 1284 E 6 "ft"™*
1 14,? f ? |4j| 1C* 7 C. 00639 ) 1 1558 6S 5 40C1967
46516 CH 4MY1947 0.00136 1 146919 CH 5JN1941
46743 EV 20JN1937 0.00428 » (46757 EV 25JU937
12B5 F 1 15SE1964 0.01165 1 ( 1403 CA 2 10MY1961
46916 Ch 4KY1947 0.00204 1 ( 1449 C 3 16JU961
1
_tfosiSS-t—
0.02029 1
r_nj*79 1
0.00635 1
__C-fiC713--l_
C.OC910 )
C.OC481 )
C. 45693 )
C.CC382 )
Fragilaria "orotonensis v. tenuissima."
249 FRCR07VA TOT MO OF STATIONS 136
160973 CH 1876 0.56684
1 1507 CH 19FF1881 0.06792
(46908 CH DE1945 0.02014
146914 CH 19AP1946 0.00747
(46905 CH .111447 0.15933
IMOlf, r.H 4HVI047 0.02611
(46913 CH 6AU1947 0.09413
146771 EV 11JN1937 0.12125
(46770 EV 9JL1937 0.30415
(46747 EV 1AU1937 0.34656
(46769 EV 7SE1937 0.04342
(46750 EV 24SE1937 0.41476
(46767 EV 270C1937 0.36362
146762 EV 18MR1938 0.77195
(46756 EV 27AP1938 0.03022
146766 EV 14DE1938 0.22180
1379 GS 3 9HY1967 0.13927
1382 GS 6 10MY1967 0.01665
1385 GS 9 10MY1967 0.01413
1388 GS12 12MY1967 0.04223
1392 GS16 12MY1967 0.18183
1395 GS19 13MY1947 0.08690
1398 GS22 14MY1967 0.15788
1556 GS 3 30C1967 0.18772
1559 C-S 7 40C1967 0.41617
1562 GS10 5DC1967 '0. 26644
1566 GS14 50C1967 0.05687
1569 GS"l7 5QC1967 0.27054
1572 GS20 60C1967 0.03064
157S GS2B 60C1967 0.02709
1524 HI 1 20SE1967 0.94133
1521 SH 1 18SE1967 2.21555
1525 PH 1 20SEIS67 0.79376
1528 SB 1 2CSE1967 0.46203
1531 GH 1 25SE1967 0.02536
1S*9 HO 1 4nn»7 0.10963
1553 SG 1 60C1967 0.13220
1351 HI 2 21AP1967 0.01552
1418 SH 2 22HY1967 0.31104
1401 HO •> 6MY1967 0.07056
1352 KM 2 21AP1967 0.30064
14?9 yl 2 29HY1967 0.06370
1405 ES 2 12HY1967 0.14190
140A GB 2 13HY1567 0.02157
1422 GA 2 23MY1967 0.10218
1430 NC 2 12JN1C67 0.02467
3540 CH 11FY1875 0.04659
46910 C.U OC1945 0.10159
46517 CH 12JA1946 0.04491
46924 CH 10MY1946 0.22927
46909 CH MR1947 C. 01821
46COA CH MY1947 C. 01062
146922 CH 21AU1947 0.02423
(46743 EV 20JN1937 0.16271
46164 EV 17JL1937 C. 37067
4C752 EV 15SE1937 0.08707
(46744 EV 60C1937 0.88763
(46749 EV 12MR1938 0.32771
46751 EV 30HR1938 C.04466
46759 EV 19MY1938 C.C5402
1377 GS 1 9MY1967 0.01187
1380 GS 4 9HY1967 0.17152
1383 GS 7 10MY1967 0.08287
1386 GS10 12MY1967 0.03160
1390 GS14 12MY1967 0.05285
1393 GS17 13MY1967 0.05479
1396 GS20 13MY1967 0.01258
1554 GS 1 30C1567 C. 99623
1557 GS 4 3QC1967 0.97160
1560 GS 8 4QC1967 C. 17003
1563 GS11 50C1967 0.14497
1567 GS15 SQC1967 0.12384
1570 GS18 5QC1967 0.69417
1573 GS21 60C1967 0.14223
1544 MU 20C1967 0.04766
1546 LU 2QC1967 C. 04001
1522 BH 18SE1967 0.00912
1526 HO 20SE1967 0.32429
1529 KN 20SE1967 0.34776
1545 ML 20C1967 0.14866
1551 ES 50C1967 0.45531
1428 MU 2 29NY1967 0.03917
1427 LU 2 29HY1967 0.01211
1425 RA 2 25MY1967 0.45973
1402 TR 2 6KY1967 0.18952
1353 FR 2 23AP1967 0.02110
1403 CA 2 10MY1967 0.06539
1407 SM 2 14MY1967 0.14331
1419 BU 2 23HV1967 C. 12816
rT423 HA 2 25MY1967 0.50529
3541 CH 1FEUB1 0.02935
46921 CH 23N01945 C. 02457
46915 CH 20FE1946 C.1C812
46920 CH 20DE1946 G. 24032
46912 CH AP1947 C. 52892
46907 CH JL1947 C. 19211
46758 EV 5JN1937 C. 09628
46745 EV 3JL1931 C. 12539
46757 EV 25JL1937 C. 13480
146765 EV 30 AU 19 37 0.10039
(46760 EV 22SE1937 C. 43331
46748 EV 130C1937 C. 08540
46768 EV 16MN1938 C.1C290
46772 EV 18AP1938 C.C4968
46761 EV 27MY1938 0.05451
1378 GS 2 9MY1967 0.00841
1381 GS 5 10MY1967 0.09302
1384 GS 8 10CY1967 C.02033
1387 C-S 11 12MY1961 C. 15447
1391 GS15 12MY1967 C. 02394
1394 GS18 13MY1967 C.12729
1397 GS21 13MY1967 C.OC392
1555 GS 2 30C1967 C. 06003
1558 GS 5 40C1967 C. 73728
1561 GS 9 40C1967 0.21130
1564 GS12 50C1967 0.14484
1568 CS16 50C1967 C. 15584
1571 C-S19 6QC1967 0.03278
1574 GS22 60C1967 C. 12944
1547 fS 1 20C1967 C. 41517
1520 hO 1 USE1967 C. 39606
1523 RA 19SE1967 2.06642
1527 1R 20SE1967 C. 07547
1530 Fft 24SE1961 C. 15001
1548 CA 30C1967 C. 11449
1550 HR 50C1961 C. 06195
1426 KS 2 29HV1967 0.07349
1417 KO 2 22MY1967 0.05982
1399 PN 2 5MY1967 C. 06121
1400 SB 2 6HY1967 0.05361
1354 GH 2 25AP1961 C. 01036
1404 »0 2 10NY1967 C. 03811
1349 CI 2 19AP1967 C. 06825
( 1421 CH 2 23MY1967 C.C8675
( 1424 KN 2 2SHY1967 C. 37303
Genus Frustulia Rabh. (nom. cons, non Agardh 1824)
Rabenhorst, Susaw.-Diat., p. 50. 1853.
Most members of the genus Frustulia find their primary habitat in
benthic communities. The occasional specimens that are noted .in plankton
collections from Lake Michigan are probably derived from such habitats.
92
-------
Frustulia rhomboides (Ehr.) De Toni
Navioula rhomboides Ehrenberg, Phys. Abh. Akad. Wiss. Berlin 1841-419
pi. 3(1), fig. 15. 1843.
Frustulia rhomboides (Ehr.) De Toni, Syll. Alg. Vol. 2, Sect. 1 p. 277
1891.
FURHCKB'D TDT 1.^1 OF STATICNS
_l 46906 _ £H _ KY1947 0.00066 I (46907 CH _ JL1947 C. 00049 1 1 _
Frustulia rhomboides var. amphipleuroides (Grun.) Cleve
Navioula rhomboides var. amphipleuroides Grunow in: Cleve and Grunow,
K. Svenska Vet. -Akad. Handl., Ny Foljd, 17(2):47, pi. 3, fig. 59. 1880.
Frustulia rhomboides var. amphipleuroides (Grun.) Cleve, K. Svenska Vet.-
Akad. Handl., Ny Foljd, 26 (2): 123. 1894.
?7T FURHQI-VA TCT KC Cf STATICNS LQ_
ft.n
-------
Gomphoneis eriense (Grun.) Skv.
Gomphonema eriense Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 23,
fig. 10. 1880.
Gomphoneis eriense (Grun.) Skvortzow, Proc. Sungaree River Biol. Sta.,
1(5):28. 1928.
NS TCT NO Of STATIONS
Gomphoneis hereuleanum (Ehr.) Cleve
Gomphonema hereuleanum Ehrenberg, Ber. Akad. Wiss. Berlin, 1845:78. 1845.
Gomphoneis hereuleanum (Ehr.) Cleve, K. Svenska Vet.-Akad. Handl., wy
FBljd, 26(2):73. 1894.
282 G5HERCUL TCT NO OF STATIONS 1
14&770 EV 9JL1937 O.OC5S6 ) I
Genus Gomphonema Agardh
Agardh, Syst. Alg., p. 15. 1824.
Most members of the genus Gomphonema find their primary habitat in
periphyton communities. A relatively small proportion of the species occur-
ring in such habitats in Lake Michigan are also taken in plankton collections.
Gomphonema abbreviation Klltz.
Gomphonema abbreviation Kutzing, Bacill., p. 84, pi. 8, figs. 5-6. 1844.
-Z&3 GCaBBREU TOT Hv Of STATICNS 2
CH Z3N01948 C.00065 I ( 123t C' 1 BJN196* 0.00175 ) I
Gomphonema abbreviation var. inflata Hust.
Gomphonema abbreviation var. inflata Hustedt, Arch. Hydrobiol., 47(4):630,
fig. 21. 1953.
Coll: 1550.
Gomphonema aowninatwn var. brebissonii (Kutz.) Grun.
Gomphonema brebissozKui Kutzing, Sp. Alg., p.66. 1849.
Gomphonema aeuminatum var. brebissonii (Kutz.) Grunow in: Syn. Diat.
Belgique, pi. 23, figs. 23-26. 1880.
284 GCfCUHlN TOT NO OF STAT1CMS 1
C 135* GiL-Z 25tPI967 0.00173 i (
Gomphonema aeuminatum var. ooronata (Ehr.) Rabh.
Gomphonema coronation Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:17. 1841.
Gomphonema ac-uminatum var. ooronata (Ehr.) Rabenhorst, Fl. Europaea Alg.,
Sect. I, p. 124. 1864.
MS EDACUBVC TCT ND OF STATICKS 1
I4fcqn CH I2Jtl9A6 0.00055 I I
94
-------
Gomphonema acuminatum var. pusillwn Grun.
Gomphonema acuminatum var. yuRillum Grunow in; Van Heurck, Syn. Diat,
Belgique, pi. 23, fig. 19. 1880'.
TCI NO DF STATI
I JLi'ft
B"
19 tP 196 7 __ O.OC320 ) - 1
Gomphonema angustatwn (Kiltz.) Rabh.,
Sphenella angustata Ktkzing, Bacill., p. 83, pi. 8, fig. 4. 1844.
Gomphonema angustatwn (Klitz.) Rabenhorst, Fl. Europaea Alg., Sect 1
p. 283. 1864. " '
_287 GCANGLST TCT KC CF STAJTJ_CNS_ 22 _
146758
( 1377
1 1520
( 1531
1 1428
( 1417
< 1354
EV
GS 1
HO 1
GH 1
HU 2
HO 2
GH 2
5JM937
SMY1967
18SE19fe7
25SE1967
29PY1967
22MY196/7
25AP1S67
0.00357
0.00396
0.00943
O.OC845
0.00904
0.00748
O.OC173
(46763
( 1544
( 1521
( 1545
1 1426
( 1350
( 1429
EV
MU 1
SH 1
WL 1
US 2
BH 2
ML 2
23AU1937
20C1967
18SE1967
20C1967
29HY1967
19AP1967
29K1TJ567
0. 02029
0.00238
0.00577
0.00676
C. 01050
C. 03524
C. 01062
1236
1546
1522
1550
1427
14CO
< 1403
C1 I
LU 1
EH 1
CR 1
LU 2
SB 2
CA 2
GJM964
2DC1967
16SE1S67
50C1967
29KY1967
6HY1967
IOMY1967
C.CC175 )
C. 01000 I
C. 00365 )
C.C3717 )
C. 03632 )
C.C2383 )
C. 01308 I
Gomphonema angustatwn var. produota Grun.
Gomphonema angustatim var. producta Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 24, figs. 52-55. 1880.
288 60ANGUVP TCT MO OF SW1CNS
(46758
( 1567
( 1417
EV
GS15
HO 2
5JN1937
50C1967
22MY1967
0.01783 )
0.00159 »
O.OC374 I
{ 1264
( 1545
( 1350
C' 1
ML 1
6H 2
10AU1964
20C1967
19AP1967
0.00193 )
0.00676 1
0.00441 )
( 1369
( 1549
I 1400
CS13
MC 1
SB 2
12CY1967
40C1967
6MY1967
O.OC258 )
0.01370 1
C.OC596 )
Gomphonema angustatwn var. sarcophagus (Greg.) Grun.
Gomphonema sarcophagus Gregory, Micr. J., 4:13, pi. 1, fig. 42. 1856.
Gomphonema angustatwn var. sarcophagus (Greg.) Grunow in: Van Heurck,
Syn. Diat. Belgique, pi. 25, fig. 2. 1880.
Coll: 1331.
Gomphonema olevei Fricke
Gomphonema olevei Fricke in: A. Schmidt, Atlas Diat., pi. 234, figs. 44-
46. 1902.
289 GOCLEVE1 TCJ NO CF STATIONS 3
( 1571 GS19 60C1967 0.00117 I ( 1530
24SE1967 C.fllOOO t I 1550
50C1967 C.C4956 )
Gomphonema constvictum Ehr.
Gomphonema constrictm. Ehrenberg, Phys. Abh. Akad.Wiss. Berlin, 1830:63.
1832.
290 GCCCMSTR TCT
( 3541
( 151?
{ 1407
CH
GS20
SM Z
NO OF STATIChS 7
1FE1C81
6CC-1S67
14f Y1967
O.OC978 )
0.00090 )
C.OC597 )
(46748
( 1575
<
EV
. GS28
130C1937
6DC1967
C. 02135 1
0.00129 )
( 1566 C-S14
50C1961
29MY1967
C.CC183
C.C2100
1
)
Gomphonema Qons-tpietwn var. capitation (Ehr.) V. H.
Gomphonema capitatim Ehrenberg, Infusionsthierchen, p. 217, pi. 18, fig.
2. 1838.
Gomphonema constriction van:, capitatum (Ehr.) Van Heurck, Syn. Diat.
Belgique, p. 123. 1885.
95
-------
291 GCCCKSVC 1C! NO CF ST4TICKS
( 1350 BH 2
19AP1967 O.CC22C I (
Gomphonema graoile Ehr.
Gomphonema gracile Ehrenberg, Infusionsthierchen, p. 217, pi. 18, fig. 3.
1838.
292 GOGRACIL TCT
1*6758
(46752
1 1554
1 1550
EV
EV
GS 1
MR 1
NC CF STATIONS 12
5JN1937
15SE1937
3CC1S67
50C1967
C.C1070 I
0.0t530 I
0. 00354 )
0.01239 )
(46757
1 1341
I 1556
< 1350
EV
A 3
GS 3
_Bh 2
25JL1937
19AP1967
30C1S67
19AP1967
C.CC481 I
0.0010B )
C. 00521 )
C. 00441 1
(46763
1 1397
( 1565
1 14C4
EV
...-6S21 -
GS13
PG 2
"" 23AIU931 C.C4658 )
13MY1967 C.CC065 )
5CC1967 C.C1521 )
10MV1967 C.C1270 )
Gomphonema gpaaile var. eymbelloides Grun.
Gomphonema graeile var. eymbelloides Grunow ex Cleve> K. Svenska Vet.
Akad. Handl., Ny Foljd, 26(2):182. 1894.
293 GCG.RAC.y«...Tj:_lJii3__aF STATICNS 1
I 1559 GS 7 40C1967 0.00350 I I
Gomphonema gvovei M. Schm.
Gomphonema gvovei M. Schmidt in: A. Schmidt, Atlas. Diat., pi. 214,
figs. 13-18. 1899.
294 G C G R (MEL TO J_M_QF__S TAJJULN5 6. _. .„
( 1571
CS19
6CC1967 C.OC117 > ( 1572
6CC1967 C.COC90 ) I 1550
SGClStT C.C4S56 I
1427
29MV1967 0.03632 ) I 1350
BH 2
19AP1967 C.00220 ) I 14C4
10MY1967 C.01270 )
Gomphonema inbTioatum Kiitz.
Gomphonema int-rioatwn KUtzing, Bacill., p.
87, pi. 9, fig. 4. 1844.
295 GCINTRIC TCT NC CF ST4TICNS
< 3541 CH IFEieai 0.01956
14692:3 CH 22N01SA6 0,00219
(46916 CH 4^V1947 0.00066
(46922 CH 2JAU1947 C. 00145
(46757 EV 25JL1937 0.01444
(46752 EV 15SE1937 0.17414
(46748 EV 13CC1937 0.17079
(46762 EV 18KR193e 0.02206
( 1244 F 1 11JN1964 O.CC11C
( 1279 E 1 16SE1964 0.00393
1390 GS14 12MY1967 0.00587
1397 GS21 13MY1967 C. 00065
1567 GS15 50C1967 0.00476
1573 GS21 6CC1967 0.00112
1523 RA 1 19SE1967 0.06458
1551 ES 1 50C1567 C. 00799
1553 SG 1 6DC1967 0.03672
1402 TR 2 6fY1967 0.01083
1404 HO 2 IOMY1967 0.02541
<46!21 CH 23N01945 C. 00129
(46920 CH 200E1946 C. 00092
(46SC6 CH MY1947 0.00133
(4675B EV 5JM937 0.00357
(46747 EV 1AU1937 C. 00743
(46760 EV 22SE1937 0.00492
(46767 EV 270C1937 0.01160
(46751 eV 30MR193B 0.01117
1258 F 1 6JL1964 C. 01416
1264 E e 17SE1964 0.01271
1391 GS15 12FY1967 C. 00958
1563 GS11 50C1967 C. 00234
1571 GS19 60C1967 C. 00059
1574 GS22 60C1967 0.04315
1526 HC 1 20SE1967 0.00569
1552 SF 1 6CC1967 C. 02641
1426 MS 2 29HY1967 0.03150
1353 FR 2 23AP1961 C.C1C55
(46917 CH 12JA1946 C.CC028
(469C9 CH HR1947 C. 00455
I469C7 Ch JL1941 C.CC049
(46764 EV 17 JL 1937 C.OC806
(46763 EV 23AU1937 C. 28409
(46750 EV 24SE1937 C.OC471
(4676B EV ltHRlS38 C. 22049
(46761 EV 27MY1538 C.CC273
1259 F 2 6JL1S64 C.CC310
1285 F 1 15SE1964 C.C8736
1392 GS16 12HY1967 C.OC616
1566 GS14 50C1967 C.CC183
1572 CS20 6QC1967 C.OC090
1522 Bh 1 1ESE1S67 C.C0182
1530 FR 1 24SE1967 C. 01000
1550 m 1 5CC1567 C.C6195
1350 BH 2 19AP1967 C. 01762
1403 CA 2 10PY1967 C. 06539
I 1407 SM 2 14CY1S67 0.05374 ) (
Gomphonema -intvicatum var. dichotomum (Kutz.) Grun.
Gomphonema d-iohotormm Klltzing, Linnaea, 8:569, pi. 15, fig. 48. 1833.
Gomphonema intrioatum var. diehotomum (Kutz.) Grunow in: Van Heurck,
Syn. Diat. Belgique, pi. 24, figs. 30-31. 1880.
296 GCIKTRVD TCT NO OF STAT1CNS
(46752
( 1522
( 1550
EV
BH 1
MR 1
15SE1937
18SE1967
5CC1967
0.04354 )
0.00729 )
0.07434 I
I 1388
( 1526
1 1553
GS12
MO 1
SG 1
12MY1967
20SE1967
6OC1967
C. 00603 )
0.00569 )
0.01469 )
I 1574
( 1552
( 14C4
GS22
SM 1
H 2
6CC1967
6QC1967
10MY1967
C. 01726 )
C.019B1 )
C.C1270 )
Gomphonema intriaatum var. pumila Grun.
Gomphonema intvicatwn var. pumila Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 24, figs. 35-36. 1880.
96
-------
297 GCINTRVP TCT NC OF S1ATICMS 47
1
<
1
(
1
3540 CH 11HY1879 0.03727
44770 EV 9JL1937 0.00596
46747 EV 1AU1937 0.01236
46752 EV 15SE1937 0.02177
46767 EV 27001937 0.00774
1243 E 6 13JM964 0.00626
1285 F 1 15SE1964 0.01165
1324 F 2 6N01S64 0.00466
1386 GS10 12MY1S67 O.OC2S7
1554 GS 1 3CC1967 0.00356
1571 OS19 6QC1967 C.00059
1526 MO 1 20SE1967 0.01136
1552 SM 1 6DC1S67 0.00660
1428 MU 2 29KY1967 0.00603
1399 PW 2 5KY1967 0.00680
1405 E5 2 12HY1967 0.03225
46S06 CH *Y1947 C. 00066
46764, EV 17JL1937 0.01612
46763 EV 23AU1937 0.28409
46160 EV 225E1937 0.00492
46768 EV 1CMR1938 0.01470
1268 £ 2 15AU1964 0.00274
it'll u 0 140C1964 0.00190
1341 A 3 19AP1967 C. 00108
1387 6S11 12PY1967 0.00792
1555 GS 2 30C1967 0.00353
1574 6S22 60C1967 0.02301
1528 SB 1 20SE1S67 0.01444
1550 CR 1 50C1967 C. 11151
1417 HO 2 22HY1967 0.01122
1402 TR 2 6KY1967 0.00541
1407 SM 2 14HY1967 0.00597
46758 EV 5JNL937 C.C1783
46769 EV 1SE1937 C. 02171
46748 EV 13CC1937 C 02135
1240 D 6 IOJN1964 C.OC153
1302 E 5 130C1964 C.OC405
153S E 5 23SE1967 C.CC552
1389 GS13 12HY1967 C.CC256
1565 CS13 50C1967 C. 02535
1544 HI 1 20C1S67 C.CC238
1530 FR 1 24SE1967 C.C2000
1553 £G 1 6CCJ567 C. 02203
1350 BH 2 19AP1967 C.0110I
1403 CA 2 10KY1967 C.C1308
...
Gomphonema laneeolatwn Ehr.
Gomphonema lanoeolatum Ehrenberg, Abh. Akad. Wiss,
2(1), fig. 37. 1845.
Berlin, 1843:32, pi.
298 GOLAKCEO TCT
(467f,4
(46767
( 1561
( 1417
1 1.402
EV
EV
GS 9
HO 2
TR 2
HC CF STATKHS 13
17JL1937
270C1937
40C1967
C.OG8U6 }
0.00387 )
0.01761 1
22MY1967 0.00374 )
6PY1967 0.00541 )
146763
146768
1 1575
I 1418
1
EV
EV
GS28
SH 2
23AU1937
16HR1938
6CC1967
22MY1967
0.04058 )
0.01470 )
C. 00129 )
0.01555 )
(46748
I 1388
( 1550
I 1350
EV
GS12
KR 1
BH 2
130C1937
12MY1967
5DC1961
19AP1967
C.C2135 )
C.CC603 1
C.C3717 )
C.01322 1
Gomphonema lanoeo'Latwrn var. insignis (Greg.) Cleve
Gomphonema -Lnsigne Gregory, Micr. J., 4:12, pi. 1, fig. 39. 1856.
Gomphonema laneeolatum var. insignis (Greg.) Cleve, K. Svenska Vet.-
Akad. Handl., Ny Foljd, 26(2):183. 1894.
299 CtlLAKCVI TCT NC CF STAT1CNS 1
J_44T6_8 ,E\( 16fR193B 0.04410 I
Gomphonema longioeps Ehr.
Gomphonema long-Loeps Ehrenberg, Mikrog., pi. 4(3), fig. 27,
1854.
100CCLDKCIC TCT MO OF STATIONS 1
( 4A75B EV 5JN1937 O.OC357 > 1
Gomphonema manubrium Fricke
Gomphonema manubriwn Fricke in: A. Schmidt, Atlas Diat., pi. 248, fig. 12.
1904.
Coll: 1549a.
Gomphonema olivaceoides Bust.
Gomphonema olivaceoides Hustedt, Arch. Hydrobiol., 43(3/4):397, pi. 37,
figs. 9-12. 1950.
146758
146764
146762
f |3B4
1 1552
EV
EV
$S 8
SM 1
5JN1937
17JL1937
f q<;E1^7
18HR1938
IOHY1967
60C1967
0.03209 ) (46771
0.00806 ) (46757
0. 04354 ! (4A7A8
0.06617
0.00185
0.00660
(46756
1 1530
( 1550
EV
EV
EV
tv
FR 1
MR 1
11JN1937
25JI.1937
13DC1937
27AP1938
24SE1967
50C1967
C.OC238 )
0.00963 >
0.06405 )
0.00168 )
C. 01000 )
0.03717 >
(46743
(46763
146749
( 1258
( 1549
EV
EV
EV
f 1
fS. 1
20JM937
23AU1937
12HR1936
6JL1964
40C1967
C. 01285 )
C. 02029 )
C.01214 1
C. 00472 )
C.C1370 1
Gomphonema olivaoeian (Lyngb.) Kutz.
Echinella oliuaoea Lyngbye, Tent. Hydrophyt. Danicae, p. 209, pi. 70,
fig. c. 1819.
Gomphonema olivacewn (Lyngb.) Kutzing, Bacill., p. 85, pi. 7, figs. 13,
15. 1844.
97
-------
303 GOOIIVAC TCT NC CF STATICSS
82
< 46921 CH
(46905 CH
(46922 CH
146747 EV
C46752 EV
(46767 EV
(46751 EV
(
23N01945 0.00194 I (4e«4 CH 10MY1946 0.00282
JA1947 0.00123 ) (46916 CH 4MY1947 0.00170
21AU194J 0.00048 ) (46758 EV 5JN1937 C. 39940
1AU1937 0.01238
15SE1937 0.02177
27CC1937 0.00387
30CR1938 0.02233
1240 D 6 10JN1964 0.00307
1311 A 3 19AP1967 0.00868
1368 A 3 4MV1967 0.00314
1375 E 3 7MV1967 0.00241
1451 Cr 7 16JL1967 O.OC197
1532 A 3 18SE1967 0.00329
1397 GS2
1 1567 GS1
1573 GS2
1524 MI
L 13MY1967 C. 00065
> 50C1967 0.00318
I 60C1967 0.00224
L 2CSE1967 0.02189
1522 BH 1 18SE1967 0.01641
1551 ES _L 50C1967 C. 00799
1428 MU 2 29MY1967 0.00904
1427 LU ? 79MY1967 0.04843
140 1 MO
L.1354 SiLj
1407 SM
1423 UA
2 6MY1967 0.05292
2 25AP1967 0.01553
2 14HY1967 0.00597
2 25KY1967 0.01265
(46763 EV 23AU1927 0.12175
(46760 EV 22SE1937 C. 00492
(46768 EV 16MR1938 0.01470
1227 C' 2 13MY1S64 0.00110
1252 C' 1 16JL1964 C. 00279
1342 t 4 19AP1967 0.00180
1369 A 4 4MY1967 O.C0373
1416 E 5 28MY1967 0.00219
1452 E 2 14JL1967 0.00426
1538 E 5 23SE1967 0.00552
1559 GS 7 4CC1967 0.00350
1569 GS17 50C1967 C. 00297
1574 GSS2 6CC1967 0.00863
1546 LU 1 20C1967 0.02501
1545 WL 1 20C1S67 0.02703
155C MR 1 5QC1967 C. 24780
1426 MS 2 29MY1967 0.04199
1417 HO 2 22HY1967 0.04112
1402 TR 2 6MY1967 C. 01083
1429 WL 2 29MY1967 C.C2123
1349 CI 2 19AP1967 0.00359
4A5JO CH 20DE1946 C.OC062
'^19 CH WHmT ^fifi|fi|-
"xy, z %™™ ^«»n
ilLf.Tf.f EV 30*U19J( 1.1199B
\£lll EV 130C1937 C.02135
f AA7A9 EV 18PfllS3e U.UiiUO
"11 " i •*??•* -4*5S4S-
1371 C1 2 ILltlVdl b
-------
Gomphonema subtile var. sagitta (Schum.) Grun.
Gomphonema sagitta Schumann, Schrift. Phys.-Okon. Ges. Konigsberg, 3:187,
pi. 9, figs. 19a-d. 1863.
Gomphonema subtile var. sagitta (Schum.) Grun. in: Van Heurck, Syn. Diat.
Belgique, pi. 23, fig. 27. 1880.
309 GOSUBTVS 1CT NO OF STATIONS
I 1348
234P1967 0.00137 ) (
Gomphonema tergestinum (Grun.) Fricke
Gomphonema semiapertum var. tergestina Grunow in: Van Heurck, Syn. Diat,
Belgique, pi. 25, fig. 40. 1880.
Gomphonema tergestinm (Grun.) Fricke in: A. Schmidt, Atlas Diat., pi.
234, figs. 39-43. 1902.
310 GOTER6ES IDT NO OF STATIONS
MR 1
50C1967 0.01239 ) I 14C4
PC 2
10MV1967 0.02541 I (
Species inaertae sedis
Gomphonema sp. #2.
311 GOSPECCB 7CT NO OF STATIONS
146919 CH
(46768 EV
< 1394 GS18
1 1550 MR 1
Gomphonema
312 GCSPECCC TCT
(46920 CH
5JN1947 0.00455 )
16HR1538 0.02940 1
13HY1967 0.00172 J
5CC1967 0.01239 1
sp. #3.
NO OF STATIONS 3
200E1946 O.OCC31 1
(46758
(46751
1 1397
( 14C4
(46752
EV
EV
GS21
MC 2
EV
5JN1937
30HR1938
13KY1967
10HV1967
15SE1937
C. 01070 )
0.02233 I
0.00065 )
0.02541 )
0.02177 )
(46752
1 1285
I 1560
( 14C5
(46767
EV
F 1
GS 8
ES 2
EV
15SE1937
1!SE19«4
40C1967
12MY1967
270C1937
C. 06530 )
C.C0582 )
C.OC472 I
C.OC645 )
C.00387 )
Gomphonema sp. #6.
313 GCSPECCf TCT NC Of STATIONS 1
( 1401 KG 2 6HY1S67 O.OC588 1 I
Genus Gyrosigma Hass.
Hassall, British Freshw. Algae, p. 435. 1845.
Although most freshwater species of the genus Gyrosigma find their pri-
mary habitat in epipelic communities, many are successful facultative plank-
tonts. Members of the genus are found in many plankton collections from Lake
Michigan, but usually in small numbers.
Gyposigma aeuminatwn (Kutz.) Rabh.
Frustulia aeuminata Kiitzing, Linnaea, 8 : 555 fj pi. 14, fig. 36. 1833.
Gyrosigma acuminatum (Klltz.) Rabenhorst, Sussw.-Diat., p. 47, pi. 5,
fig. 5a. 1853.
"= STATIONS
1
. 1..UQ&
13MY1967 0.0027C I
Gyrosigma attenuatum (Kutz.) Rabh.
Frustulia attenuatum Ktltzing, Linnaea, 8:555, pi. 14, fig. 35. 1833.
Gyrosigma attenuatum (Kutz.) Rabenhorst, Sussw.-Diat., p. 47, pi. 5,
fig. 2. 1853.
99
-------
316 GYATTENU TCT
3540
1284
1387
1567
1575
1527
1 1350
CH
E 6
GS11
GS15
GS28
IR 1
BH 2
KC CF STAT1CNS 19
11MY1879 0.00932 1 3541
17SE1964 0.00318 )
12MY1S67 0.00394 1
5GC1967 0.00318 )
60C1967 0.00129 )
20SE1967 0.01258 >
19AP1967 0.01542 1
1265
1390
1572
1547
1553
CH
F 1
GS14
GS20
MS 1
SG 1
1FE^881
15SE1964
12KY1967
60C1967
20C1967
6CC1967
0.02935 (469C7
0.00582
0.00587
C. 00090
0.00798
0.00734
1384
1394
1574
1526
1426
CH
GS e
GS1B
GS22
CO 1
KS 2
JL1S47
10MY1967
13HY1967
60C1967
20SE1967
29MV1967
C.OC099
C. 00185
C.OC172
C.OC288
C.C2276
C.C1C50
Gyrosigma nodiferum (Grun.) Reim.
Pleurosigma nodiferum Grunow in: Cleve and Grunow, K. Svenska Vet.-Akad.
Handl., Ny Foljd, 17(2):59. 1880.
Gyrosigma nodiferum (Grun.) Reimer in: Patrick and Reimer, Acad. Nat. Sci.
Philadelphia Monogr. 13:320, pi. 24, fig. 2. 1966,
317 GYNDOIfE TCT KC CF STATIONS 22
O.C0978
CH_
MY1947 C.OC066 1
(46764
1260
EV
F 3
1534 A 6
1389 GS13
1393
1563
GS17
GS'll
17JL1937
6JL1964
19SE1967
12MY1S67
13MY1967
50C1967
0.00806
0.00191
0.00310
0.00258
0.01644
0.00234
(46757
( 1323
I 1380
( 1390
1 1394
( 1568
EV
F 1
GS 4
GS14
GS18
GS16
25JL1937
6N01964
9MY1967
12MY1967
13HY1967
50C1967
0.00481
0.00139
0.00336
O.C4698
0.01892
C. 00433
(46747
( 1346
( 1388
( 1391
( 1395
( 1552
EV
C 7
GS12
CS15
CS19
Sf 1
1AU1937
21AP1967
12HV1967
12HY1967
13MY1967
COC1967
C. 00743 )
C.OC134
C.C5430
C.C4310
C. 00235
C. 01981
SG 1
6CC1967 O.OC734 )
Gyrosigma soiotense (Sulliv. and Woraley) Cleve
Pleurosigma soiotense Sullivant and Wormley, American J. Sci., Ser. 2,
27:251. 1859.
Gyrosigma soiotense (Sulliv. and Wormley) Cleve, K. Svenska Vet.-Akad.
Handl., Ny.Foljd, 27(3):pl. 1, fig. 5. 1895.
318 GYSCIOTE TCT ND CF S1»TICNS
1 1405
ES 2
12CY1567
O.OC(45 )
(
319 GYSCIOTO TCT
( 1231
1 1395
( 1569
1 1573
E 3
GS19
GS17
GS21
NC CF ST«TICNS 12
16MY1964
13HY1967
5CC1967
60C1967
0.00245 )
0.00117 )
0.06324 )
0.00112 1
( 1392
1 1566
( 1570
( 1574
GS16
GS14
GS18
GS22
1ZHY1967
50C1967
50C1967
60C1567
0.00616 )
0.00367 )
0.27767 1
0.00288 1
( 1394
( 1567
( 1571
I 1575
C-S16
GS15
CS1S
£S28
13HY1967
5CC 1967
60C1967
60C1967
C.OC344 )
C. 05081 )
C.SC117 J
C. 01677 )
Gyrosigma spenoevi-L (Quek.) Griff, and Henfr.
Navioula spencer-Li Quekett, Pract. Treat. Micr., p. 440^ pi. 9. 1848.
Gyrosigma spenoerii (Quek.) Griffith and Henfrey, Microgr. Diet., 1st.
ed., p. 303, pi. 11, fig. 17. 1856.
320 GYSPENCE TCT KC CF ST4T1CKS
GS17
ll"Yt8T9 0.00466 I ( 1279 E 1
50C1967 0.00149
I 1407
SM 2
16SE1964 0.00393 1 ( 1285
14HY1967 0.01194 ) (
1
1SSE19<4 C.C1747 I
Gyrosigma spenoerii var. ourvula (Grun.) Reim.
Pleurosigma spenaerii var. ourvula Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):60. 1880.
Gyrosigma spenoerii var. ourvula (Grun.) Reimer in: Patrick and Reimer,
Acad. Nat. Sci. Philadelphia Monogr., 13:316, pi. 23, fig. 8. 1966.
321 GYSPEMC TCT NC CF STJT1GNS
(46909
146922
( 1521
1 1553
( 1401
1 1349
CH
CH
SH 1
SG 1
fd 2
CI 2
HR1947
21AU1947
18SE1967
6QC1967
6NY1967
19AP1967
0.00455
0.00048
O.OC577
0.00734
0.01176
0.00359
(4t?C6
( 1387
I 1526
( 1426
( 1402
I 1422
CH
GS11
HO 1
MS 2
TR J
GA 2
MY1941
12HY1967
20SE1967
29MY1967
6WY1967
23HY1967
C. 00066 )
0.00396 )
0.00569 )
0.01050 )
C. 01624 )
0.00511 1
(469C7
I 1574
( 1527
( 1427
( 1407
(
CH
GS22
TR 1
LU 2
SH 2
JL1947
60C1967
20SEH67
29KY1967
14HY1967
C.CC049 )
G.OC575 )
C.OC629 )
C. 01211 )
C. 00597 )
Gyrosigma temperei Cleve
Gyrosigma temperei Cleve, Diatomiste, 2(15):55, pi. 3, fig. 3. 1893.
100
-------
322—GYTEHPEB 1CT NO OF SUTIPHS ?
SH 19FE1681 0.01132 ) ( 1550 fg_l 50C196T 0.01239 I I
Gyrosigma wormleyi (Sulliv.) Boyer
Pleuposigma wormleyi Sullivant ini Sullivant and Wormley, Amer. J. Sci
Ser. 2, 27:251. 1859. ' *'
Gyrosigma wormleyi (Sulliv.) Boyer, Contr. Biol. Micr. Sect. Acad. Nat.
Sci. Philadelphia, 1:7, pi. 2, fig. 10. 1922.
323 CVWCRHLE TCT NQ Of 5TATIQMS 1
_ I mi CH 1 25SE1967 0.008*5 1 I
Genus Eannaea Patr.
Patrick in: Patrick and Reiraer
Acad. Nat. Sci. Philadelphia Monogr., 13:131. 1966.
Members of the genus Eannaea are most abundant in periphyton communi-
ties, especially in mountain streams and cold, oligotrophic lakes. Like
several members of the closely related genus Fragilaria which have similar
habit, they are apparently successful in the plankton under certain condi-
tions. In Lake Michigan occasional specimens are taken in plankton collec-
tions from nearshore areas but the genus is rarely noted in offshore collec-
tions.
Eannaea arcus (Ehr,) Patr.
Navieula arous Ehrenberg, Infusionsthierchen, p. 182, pi. 21, fig. 10. 1838.
Eannaea arous (Ehr.) Patrick in\ Patrick and Reimer, Acad. Nat. Sci. Phila-
delphia Monogr., 13:132, pi. 4, fig. 20. 1966.
_ 3Z» HMBCUS 1CT HE Cf ST/ITICNS 1
f 1 11JN1964 C.CC110 (
Eannaea araus var. amphioxys (Rabh.) Patr.
CeYabonei'S amphioxys Rabenhorst, Sussw.-Diat., p. 37, pi. 9, fig. A. 1853.
Eannaea arcus var. ampkioxys (Rabh.) Patrick in: Patrick and Reimer,
Acad. Nat. Sci. Philadelphia Monogr., 13:133, pi. 4, fig. 21. 1966.
325 HMARCUV* TOT NO OF STATIONS
1 1258 F 1 6JL1S64 0.00236 ) ( 1403 CA 2 10MY1967 0.0261$ ) (
Genus Hantzsahi-a Grun.
Grunow in\ Cleve and Grunow
K. Svenska Vet.-Akad. Handl., Ny Foljd, 17(2):103. 1880.
.Freshwater members of the genus Hantzsohia are most abundant in epipelic
communities in aquatic habitats and in the soil flora. Only occasional iso-
lated specimens have been noted in plankton collections from Lake Michigan.
Hantzsohia amph'ioxys (Ehr.) Grun.
Eunotia amphioscys Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:413, pi. 1(1),
fig. 26. 1843.
Eantzsohia amphioacys (Ehr.) Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):103. 1880.
101
-------
326 H
-------
the valve surface consists of irregularly arranged poroids. Ornamentation
of the valve mantle consists of poroids arranged in rows usually parallel to
the pervalvar axis. Rows of poroids usually about 13-15 in lOy, poroids
within the rows about 15-18 in lOy. In the smaller specimens the arrange-
ment of these structures tends to become irregular. The margin of the valve
is furnished with a corona of small spines. Pseudosulcus apparent, usually
deeply incised. Sulcus deeply incised, forming a sharp angle. Because of
the deep incision of the sulcus and pseudosulcus, the margins of the valve
mantle tend to be convex and the neck, of each valve is more or less bowl-
shaped.
This species is uncommon in our collections. Occasional populations
are found in the modern plankton and isolated valves occur in many collec-
tions. We suspect that some of these are derived from Pleistocene deposits
because of their corroded condition and random occurrence.
332 PEDISTAN 1CT MO OF STAT 10NS_
( 3540
(46923
(46916
CH
CH
CH
IIMY1B79
22N01S46
4HY1947
0.03261 )
0.00656 )
O.OC23B )
(46S10
(46520
(46SC7
CH
CH
CH
CC1945
20DE1946
JL1947
C. 00546 )
0.00092 1
0.00197 1
(46914
(46905
( 1536
CH
CH
E 2
19AP1946
JA1947
24SE1961
C.CC4J7 )
C.OC368 I
C.OC272 )
30C1967 C.OC712 )
Melosira distans var. alpigena Grun.
Melosira distans var. alpigena Grunow in: Van Heurck, Syn. Diat. Belgique,
pi. 86, figs. 28-29. 1882.
Distinguished from the nominate variety by its smaller size range, lesser
degree of silicification and finer ornamentation. Specimens from Lake Michi-
gan 3-6y in diameter, 3-4y high. Striae on the valve mantle about 16 in lOy,
poroids within the rows about 22 in lOy. The striae are usually oblique to
the pervalvar axis and tend to spiral around the frustule rather than being
parallel to the pervalvar axis as in the nominate variety.
This entity is very rare in our collections.
appear to be of modern derivation.
All specimens observed
333 MEDISTVA TCT NO OF STATIONS
I 3541
( 1342
( 1437
( 1452
1 1533
CH
A 4
E 3
E 2
E 5
1FE1881
19AP1967
15JM967
14JL1S67
23SE1967
O.C1S56
0.00361
C. 00269
0.00852
0.01105
(46744
( 1431
( 1446
( 1453
{ 1543
EV
A 3
A 3
E 3
E 5
6CC1937
12JN1967
11JL1967
15JL1967
10DC1S67
C.004B8 )
0.00772 >
C. 00978 )
C. 01011 )
C.0071B 1
1 1341
( 1436
( 1451
( 1532
( 1395
A 3
E 2
C 7
A 3
C-S19
19AP1967
15JN1967
UJL1S67
18SE1967
13MY1967
C.OC651 )
C. 01809 )
C.CC394 )
C.CC657 )
C.CC470 )
Melos-Lva granulata (Ehr.) Ralfs
Gaillonella granulata Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:415. 1843.
Melosira gvanulata (Ehr.) Ralfs in: Pritchard, Hist. Infus., p. 820. 1861.
Cells cylindrical, joined by the valve faces into long, closely
appressed colonies. Individual valves of specimens from Lake Michigan 5-20y
in diameter, 5-20P high. Pseudosulcus poorly developed, not apparent, sul-
cus only slightly incised consisting of a sharply angled furrow. Neck e-
longate, of the same diameter as the valve. The margin of the valve is
often furnished with very coarse spines of irregular length. The longer
of these spines often overlap one valve of the next cell in the colony.
The degree of silicification and the ornamentation of the frustule is ex-
tremely variable. The valve mantle is more heavily silicified than the
valve surface. Ornamentation of the valve surface poorly developed consist-
ing of a few irregularly arranged poroids, often without visible structure.
The ornamentation of the valve mantle is pleomorphic. In all cases the
103
-------
poroids are arranged in rows oblique to the pervalvar axis, thus spiraling
around the long dimension of the colony. The following types of ornamenta-
tion are found:
Status a; Ornamentation of the valve mantle consisting of rows of coarse,
more or less rectangular areolae. Areolae rows about 8-9 in lOy with 8-10
areolae in 10y within the rows. Frustules are heavily silicified.
Status g: Both finely areolate and coarsely areolate frustules found
in the same colony.
Status fr Ornamentation of the valve mantle consisting of fine, more or
less circular puncta. Punctae rows 10-15 in 10p with 10-15 puncta in lOy
within the rows.
This species is often abundant in eutrophied portions of Lake Michigan.
334 MEGRANUl 10T NO OF STATIONS 262
(60973 CH 1876 0.16533 1 I 3540 CH 11MY1679 0.17705
I 3507 CH 19FE1881 0.12452 I (46910 CH OC1945 63.90089
{46908 CH OE1945 1.75226
(46914 CH 15AP1946 3.36561
(46920 CH 20CE1946 2.99412
(46912 CH AP1947 5.61112
(46915 CH 5JN1947 0.54172
(46743 EV 20JN1937 0.04710
146764 EV 17JL1937 3.15874
146763 EV 23AU1537 0.42614
146757 EV I5SE1937 5.70309
(46744 EV 60C1937 6.55482
146745 EV 12MR1538 0.03641
(46756 EV 27AP1938 0.03358
(46766 EV 14CE1936 2.94677
( 1235 C 7 16JN1964 0.01130
1 1238 D 3 11JN1964 0.00800
1242 E 3 13JM964 0.00300
1245 F 2 11JN1964 0.02766
1248 B 3 24JU964 0.27587
1249 C 3 8JL1964 0.29332
1252 C« 1 16JL1964 3.90516
1255 D 5 15JL1964 0.00257
12S8 F 1 6JL1964 0.04248
Ufcl B 3 7AU156* 0.08046
1264 C* 1 10AU1964 5.94686
1267 D 6 18AU1964 0.01081
1270 F 1 1CAU1964 0.01089
1272 C1 1 10SE1564 0.18831
1275 D 2 17SE1964 4.51584
1278 D 6 1BSE1364 0.53807
1281 E 3 16SE1964 0.00785
1JB4 E 6 17SE1964 2.11292
1287 F 3 15SE1964 0.08507
1290 C' 1 160C1964 0.30699
1293 D 2 150C1964 0.04245
1299 E 2 120C1964 0.73516
1302 E 5 13CC1964 0.29962
1305 F 2 110C1964 0.05520
1308 C 7 6NC1564 0.01825
1311 0-1 8N01964 C. 02064
1314 D 4 9N01964 0.01435
1317 E 1 6NQ1964 0.15892
1320 E 4 7N01964 0.07859
1323 F 1 6NQ1964 0.08920
1336 C 3 27JA1967 0.67395
1340 C 7 28HR1967 0.00291
1343 A 'd L9AP1967 0.00139
1368 A 3 4MY1567 0.00628
1408 A 3 23MY1967 0.01789
1414 E 2 28MY1967 0.00336
1431 A 3 12JM967 0.00515
1434 C 5 17JN1967 0.01794
1446 A 3 11JL1967 13.18429
1451 C 7 16JL1967 0.03543
1504 A 3 28AU1967 0.34564
1533 A 4 19SE1967 0.40850
1_1536 E 2 24SE1967 2.48132
1539 C 3 40C1967 2.28942
1547 E 3 110C1967 0.07120
1387 GS11 12MY1967 0.01188
1390 GS14 12MY1967 2.05520
1393 GS17 13KY1967 1.02454
1396 GS20 13MY1967 35.89212
1554 GS 1 30C1967 1.08162
1557 GS 4 3CC1967 0.16816
1560 GS 8 40C1967 0.08029
1563 GS11 5CC1967 3.60099
)
L
(46517 CH 12JA1946 1.35155
(46524 CH 10MY1946 12.38078
(46505 CH JA1947 5.29722
(46516 CH 4MY1547 4.41C77
(46S07 CH JL1947 4.00655
(46745 EV 3JL1937 2.34065
(46757 EV 25JL1937 0.89S48
(46765 EV 30AU1937 7.96430
(46760 EV 22S£1937 8.82367
(46748 EV 13CC1937 0.46968
(46762 EV 18MR1938 2.11734
(46759 EV 19MY1938 0.00338
( 1233 8 3 5JN2964 3.00064
1566 GS14 50C1967 21.18877 )
1236 C< 1 8JN1964 2.20542
1240 0 6 10JN1964 0.25770
1243 E 6 13JN1964 C. 10023
1246 F 3 11JN1964 0.01195
1440 B 6 11JL1964 0.02948
t250 C 6 10JL1964 0.00822
1253 C' 2 16JL1964 0.28985
1256 E 2 14JL1S64 0.09709
1259 F 2 6JL1964 0.09606
1262 B 3 17AU1964 0.10500
1265 C' 2 10AU1964 0.04024
1268 E 2 15AU1964 0.11489
1444 B 6 19SE1964 C. 00606
1273 C- 2 10SE1964 0.02151
1276 D 3 18SE1964 1.45284
1279 E 1 165E1964 3.84812
1282 E 4 16SE1964 0.02216
1285 F 1 15SE1964 C. 22713
1288 8 3 150C1964 7.00945
1291 C- 2 160C1964 C.68490
1294 0 3 150C1964 0.02967
1297 0 6 140C1964 0.29131
1300 E 3 130C1964 0.22552
1303 E 6 130C1964 0.29106
1306 F 3 11CC1964 0.04158
1309 C1 1 10N01964 C.CBC40
1312 0 2 8N01964 0.29179
1315 0 5 9NQ1964 C. 01820
1318 E 2 7NQ1964 0.22639
1321 E 5 7NC1964 C. 26496
1324 F 2 6N01964 0.32609
1337 C 3 2MR1967 0.33510
1341 A 3 19AP1967 0.32978
1344 C 3 25AP1967 0.00331
1369 A 4 4MY1967 O.C0373
1411 C 3 31MY1967 0.02462
1415 E 3 28MY1967 0.00450
1432 A 4 13JN1967 0.01533
1435 C 7 13JMS67 0.01263
1447 A 4 11JL1967 O.C9590
1452 E 2 14.111967 0.29804
1511 E 2 1SE1967 2.14876
1534 A 6 19SE1967 2.38886
1«7 E 3 24SE1967 0.02588
1540 C 5 40C1967 0.09927
1543 E 5 IOCC1967 0.25140
1388 GS12 12KY1967 4.22323
1391 r,S15 12MY1967 1.22588
1354 GS18 13HY1967 1.32453
1397 GS21 13HY1967 3.80004
1555 GS 2 30C1967 C. 20833
1558 GS 5 4CC1967 C. 17045
1561 GS 9 40C1967 0.09578
1564 GS12 5CC1967 7.14333
I 3541 CH 1FE1881 0.45975 1
(46921 CH 23NC1945 8.74351
(46915 CH 20FE1946 3.65886
(46923 CH 22ND1946 14.2C641
(46909 CH MR1947 2.95979
(46906 CH HY1S41 3.71004
(46913 Ch 6AU1947 4.C7907
(46771 EV 11JN1937 C.OC713
(46770 EV 9JL1937 C. 25644
(46747 EV 1AU1937 0.64856
(46769 EV 7SE1937 6.C7903
(46750 EV 24SE1937 8.84197
(46767 EV 27CC1937 C.3C947
(46772 EV 18AP1938 C.C425C
1567 GS15 50C1967 28.11824 )
46761 EV 27KY1S3B 0.02453
1234 B 3 18JM964 1.16084
1237 C' 2 8JN1964 1.53390
1241 E 2 13JM964 C. 55298
1244 F 1 11JN1964 C. 05811
1247 B 3 14JL1964 C. 26892
1441 B 6 24JL1964 0.00220
1251 C 7 16JU964 C.1448S
1254 D 2 15JU964 0.26815
1257 E 3 14JL196* C.C0718
1260 F 3 6JL1564 C. 01719
1442 B 6 2AU1964 0.01365
1266 0 3 18AU1964 C. 01403
1269 E 3 1SAU1964 C.C3837
1271 C 7 22SE1964 C. 02611
1274 D 1 17SE1564 1C.51CC2
1277 0 4 18SE1964 0.01239
1280 E 2 16SE19i4 C. 36081
1283 E 5 16SE1964 C. 02452
1286 F 2 15SE1964 C. 04378
1445 B 6 140C1564 C. 66210
1292 C 1 15CC1964 C. 57394
1295 0 4 150C1964 0.00595
1258 E 1 120C1964 C. 47124
1301 E 4 130C1964 C. 01766
13C4 F 1 110C1S64 C.C8397
1307 B 6 N01964 C.5C512
1310 C" 2 10NC1564 C.C3401
1313 0 3 9NC1964 0.02896
1316 06 9NC1964 C. 06422
1319 E 3 7ND1964 C.1C997
1322 E 6 7N01964 0.40657
1325 F 3 6NC1564 C. 32495
1339 C 5 28MRi967 C.njlfl?
1342 A 4 19AF1961 C. 31581
1346 C 7 21AP1967 0.00935
1371 C 3 4KY1967 C.C1385
1412 C 5 31HY1967 C.C7155
1416 E 5 28MY1967 C. 00875
1433 C 3 17JN1S67 C. 18086
1*3* E 2 15JM1967 0.02895
1448 A 6 10JL1967 C. 01061
1454 E 5 15JL1967 C.3C806
1532 A 3 18SE1967 2.75944
1535 C 7 20SE1967 C.C7C81
1538 E 5 23SEU67 C. 23201
1541 E 2 110C1567 4.84274
1380 GS 4 9MY1961 C. 00336
1389 GS13 12MY1967 2.52688
1392 GS16 12HY1967 B. 41372 )
1355 CS15 13MY1567 S.C5510
139B CS22 14MY1967 C. 02429
1556 C-S 3 3CC1967 C.C2607
1559 GS 7 4QC1967 C. 26974
1562 GS10 5QC1967 C. 09622
1565 GS13 50C1967 2.30707
1568 CS16 50C1967 42.92867
104
-------
I 1569
( 1572
1575
( 1546
L J.5Z2_
GS20
GS28
I 1527
I 1531
( 1549
' 1550
LU 1
BH 1
60C1967
60C1967
20C1967
31.67134 I
39.01532 )
TR
_£H_
78.18736
185E1967 61.03462
2.71698
_L.l_510 US1B_
( 1573
( 1544
aC1.196f If.35422 I
NO
_HB_
20SE1967
25SE1967
40C1967
5CC1967
38.14032
21.04974
2.57713
( 1520 HO 1
_t _1523_ RA 1
( 1529 KW 1
' 1545 WL 1
.57916
20SE1967
20C1967
1.00731
20.00134
i 1553
»
1530
i548
FR 1
CA 1
i 1417
( 1401
juu5.4_
( 1404
HO 2
MO
_G±L
CO 2
22KY1967 4.90504
0.02352
3.42452
6HY1967
25AP1967
< 1418
10KY1967 27.64227
I 1402
' 1429 HI
I 1405
ES 2
6MY1967
29XY1967
1,
0.01083
28.70792
67 1.85758
1353 FR 2
1403 CA 2
1149
( 1421
19AP1967
23MY1967
0. 07155
( 1406 GB
( 1422 GA
13HY1967 9K.ai.af.'
( 1407
I 1420
1CHY196]
C.32
14PY1967 - 3^72604
JM_
1 1430
CH 2
HC 2
12JN1S67
0.19084
0.04935
23HY1967
C.03065
( 1423
UA 2
25HY1967 C.OC856 )
Melosira granulata fo. spiralis Grun.
Melosira (granulata?) var. spiral-is Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 87, figs. 20-22. 1882.
Cells curved in the pervalvar, forming lax spiral colonies. Other mor-
phologic features, including pleomorphic ornamentation, essentially similar
to the nominate variety.
Our collections of this entity mostly come from highly eutrophied en-
vironments .
335 MEGRAHFC 10T NO OF STATIONS 22
1 46744
I 1512
1 1542
< 1558
( 1520
< 1531
1 1428
( 1406
EV
E 3
E 3
GS 5
HO 1
GH 1
HU 2
GB 2
60C1937
1SE1967
110C1967
40C1967
18SE1967
25SE1967
29MY1967
13MY1967
0.00975 )
0.00785 I
C. 01017 )
0.00793 )
3.77198 )
0.85376 )
0.77134 1
0.90578 )
1454
1536
1396
1573
1521
1545
1417
f. 5
E 2
GS2C
GS21
SH .
WL 1
HO 2
15JL1967
24SE1967
13MY1967
6CC1967
18SE1967
20C1967
22HY1967
C. 28006 1
0.07635 )
C. 00592 )
C. 02240 )
0.14424 I
0.10136 )
0.01495 )
1511
1541
1555
1544
1522
1549
1429
E 2
E 2
CS 2
KJ 1
BH 1
PQ 1
hL 2
1SE1967
110C1967
30C1961
20C1967
16SE1967
40C1967
29KY1967
C. 05218
C. 01064
C.C1C59
7.05316
C.E7526
C. 02741
C. 06370
Melosira granulata var. angustissima 0. Mull.
Melosira granulata var. angustissima 0. Muller, Hedwigia, 38:315, pi. 12,
fig. 28. 1899.
Cells elongate-cylindrical, only 3-6jj in diameter. Length of the per-
valvar axis more than 5 times the diameter of the valve. Other features of
the morphology and ornamentation of the frustule essentially similar to the
nominate variety.
336 HEGRANVA TCT NO OF STATICNS 152
(46910 CH CC1945 0.00546
(46924 CH 10MY1946 0.00212
(46907 CH JL1947 0.00099
(46744 E« 60C1937 0.13656
1236 C' 1 8JM964 0.29931
1247 B 3 14JL1964 0.00854
1251 C 7 16JL1964 0.00579
1254 0 2 15JL1964 0.02681.
1261 B 3 2AU1964 0.00785
1266 D 3 18AU1964 0.01403
1273 C' 2 10SE1964 0.01613
X 1277 0 4 18SE1964 0.01239
1284 E 6 17SE1964 0.02224
1445 B 6 140C1964 0.01957
1292 D 1 15CC1964 0.00373
J_ 1298 E I J20C1564 0.03770
1302 E 5 130C1964 0.02024
1306 F 3 110C1964 0.00554
1316 0 6 9N01964 0.00756
1319 f * 7N01964 0.00524
1322 E 6 7N01964 0.01666
133H C 3 28MR1967 0.00793
1342 A 4 19AP1967 0.34288
1408 A 3 23MY1967 O.C17B9
1432 A 4 13JN1967 0.02299
1446 A 1 11JL1967 C. 94173
1452 E 2 1«JLL«7 0.52157
1508 C 3 2SE1967 0.00400
1533 A 4 19SE1967 0.03714
1536 E 2 24SE1967 0.11180
1539 C 3 40C1967 1.17742
1387 GS11 12HY1967 0.00792
1391 GS15 12MY1567 0.01915
1394 GS18 13HY1967 0.01376
46521 CH 23N01S45 C. 00194
46923 CH 22N01946 0.01311
46S22 CH 21AU1S47 0.00291
1232 E 5 16MY1964 0.00696
1237 C' 2 8JN1964 0.60325
1248 B 3 24JL1964 0.00985
1252 C' 1 16JL1964 0.03626
1256 E 2 14JL1964 C. 04030
1264 C' 1 10AU1964 1.35156
1268 E 2 15AU1964 0.00547
1274 0 1 17SE1964 0. 01408
1279 E I 16SE1964 0.29057
1286 F 2 15SE1964 0.02189
1290 C* 1 160C1964 0.10612
1294 0 3 150C1964 0.00330
1299 E 2 120C1964 0.09739
1303 E 6 130C1964 0.10075
1308 C 7 6N01964 C. 01217
1317 E 1 6NC1964 0.00574
1320 E 4 7N01964 C. 01241
1323 F 1 6MG1964 0.00557
1340 C 7 28NR1967 0.00436
1346 C 7 21AP1967 0.00267
1411 C 3 31KY1967 C. 00821
1433 C 3 17JN1967 0.11626
1447 A 4 11JL1S67 0.01403
1454 E 5 15JU967 C. 03001
1511 E 2 1SE1967 0.05525
1534 A 6 19SE1967 0.29163
1537 E 3 24SE1967 0.06469
1541 E 2 UOC1967 0.10643
1388 GS12 12MY1967 0.05430
1392 GS16 12MV1967 C. 09554
1395 GS19 13HY1967 C. 08220
46914 Ch 19AP1946 C. 00214 I
46916 CH 4MY1947 C. 00407
46750 EV 24SE193] C. 32992
1233 B 3 5JN2964 0.33340
1241 £ 2 13JN1964 C. 06653
1249 C 3 8JL1964 C. 01086
1253 C1 2 16JL1964 C. 01369
1257 E 3 14JL1964 C.OC479
1265 C* 2 10AU1964 0.01341
1272 C1 1 10SE1964 C. 11082
1275 D 2 17SE1964 0.09677
1280 E 2 16SE1964 C. 05446
1288 B 3 15QC1964 2.89521
1291 C1 2 160C1964 C.OC245
1297 D 6 140C1964 0.00190
1300 E 3 130C1964 C. 05012
1305 F 2 110C1964 O.OC690
1309 C1 1 10N01964 C.CC965
1318 E 2 7NG1964 C.C1712
1321 E 5 7N01964 0.00319
1337 C 3 2KR1967 C.C1176
1341 A 3 19AP1967 C. 12475
1348 E 5 23AP1967 C.OC137
1412 C 5 31MY19S7 C.CCC42
1436 E 2 15JN1967 C. 00724
1451 C 7 16JL1567 C.CC197
1506 A 6 29AU1967 C. 01046
1532 A 3 18SE1967 C.5C590
1535 C 7 20SE1967 C. 00966
1538 E 5 23SE1967 C. 01105
1542 E 3 11GC1967 C. 01017
1389 CS13 12MY1967 C. 32746
1393 CS17 13HY1967 C. 01096
1356 CS20 13M1967 3.62547
105
-------
1397 GS21 13MY196I U.OdjJUt
155B f;*; 5 40C1967 O.OG396
1563 GS11 50C1967 0.00*68
15*6 GS14 5QC1967 O.OS723
1569 GS17 50C1967 0.13973
1573 GS?1 6OC1967 1.01913
15** HU 1 20C1967 *.*2252
1521 SH 1 18SE1967 3*23102
1526 HO 1 20SE1967 1.0923*
1530 FR 1 2*SE1967 4.800*6
15*8 CA 1 30C1967 0.050BB
1552 SM 1 60C1967 0.20469
1*28 HU 2 29HY1967 8.870*1
1*17 HO 2 22MY1<67 1.0767"
1*02 TR 2 6MY1967 0.032*9
1 1*03 CA 2 10HY1967 0.05231
1 1*07 SM 2 14MY1967 0.01194
1934 bb 1 3DC1967 0.1*9*3
1560 GS 8 40C1567 C. 02361
156* GS12 50C1967 C. 19587
1567 GS15 50C1967 0.06510
1571 GS19 6QC1967 0.13696
157* GS22 60C1967 C. 04890
1547 MS 1 20C1967 0.16766
LJ522 BH 1 18SE1967 1.77969
1527 TR 1 20SE1967 0.08176
1531 GH 1 25SE1967 19.07016
1549 MO. 1 40C1967 0.78114
1550 HR 1 5QC1967 1.44963
1426 MS 2 29MY1967 0.66142
1*18 SH 2 22HY1967 0.38880
135* GH 2 25AP1967 0.09839
1*0* MC 2 10MY1967 2.03252
1*06 GB 2 13MY1967 0.56072
1556 GS :
1561 GS <
1565 CS1.
1568 GSK
1572 GS2(
1575 £S2
15 2O HO
1523 RA
1529 KM
1545 ViL
1551 ES
1553 SG
1427 Ul
1399 PH
1429 ML
1*05 ES
30C1967 C. 01043
40C1967 C.C1174_l
) 50C1967 C. 02535
50C1967 1.41412
60C1567 C.1Z618
» 40C1967 C.3870LJ
18SE1967 14.86162
19SC1961 C. 01845
20SE1967 C. 02398
20C1967 C. 23650
50C1967 C. 41537
60C1967 1.29260
'. 29MY1967 0.30266
! 5HY1967 C.C1360
I 29HY1967 £.43582
! 12MY1967 C. 36120
Melosira granulata var. angus.tissima fo. curvata (Grun.)
Melosira granulata var. cu-rvata Grunow im Van Heurck, Syn. Diat.
Belgique, pi. 87, fig. 18. 1882.
Cells bent in the pervalvar axis, forming lax spiral colonies. Other
morphologic features essentially similar to var. angustissima.
Both of the above entities are found in abundance only in eutrophied
portions of Lake Michigan. M. granulata var. angustissima fo. ouwata
seems to occur only under highly eutrophic conditions and may represent a
response of the previous variety to such conditions.
337 NEGRVAFC TOT
( 1396
1 1522
1 1417
C 1406
GS20
BH 1
HO 2
GB 2
NO OF STATIONS 10
13MY1>=67
18SE1967
22MY1S67
13HY1967
0.03330 I
O.*08*5 )
0.02243 )
0.2*801 )
( 1568
1 1531
1 1350
1
GS16
GH 1
BH 2
50C1967
25SE1967
19AP1967
0.00289 1
0.997*6 )
1.05725 )
( 154*
1 1428
( 1429
fU 1
HU 2
ViL 2
20C1967
29MY1967
29HY1967
C. 53375 1
C. 00301 )
0.11679 >
Melosira gpanulata var. muszanensis (Meist.) Bethge
Melosira mussanensis Meister, Kryptog.-Fl. Schweiz, 4(1):41, pi. 1,
fig. 10. 1912.
Melos-Lra granulata var. muszanensis (Meist.) Bethge, Pflanzenforsch.,
3:32. 1925.
In this entity the pervalvar axis of cells is much shorter than in the
nominate variety, height of the valve mantle only 4-8p. This variety is
apparently not polymorphic and all observed specimens are finely structured.
Other morphologic features essentially similar to the nominate variety.
This entity occurs occasionally but always in low abundance in our col-
lections from Lake Michigan. Its taxonomic status is somewhat questionable
in that it does not show the polymorphism characteristic of the other vari-
eties of this taxon. It should be pointed out that post-auxospore valves
of M. islandioa have similar length to width ratios.
338 ME1SLAVA TCT ND OF STATIONS 65,
(4691* CH 19AP1946 0.0021*
1251 C 7 16JL196* 0.00579
1257 E 3 14JL196* 0.00957
1342 A 4 19AP1967 0.0144*
13*6 C 7 21AP1967 0.01068
1368 A 3 4HY1967 0.08797
1371 C 3 4HY1967 0.34858
1374 E 2 7HY1967 0.00598
1408 A 3 23MY1967 0.01789
1*11 C 3 31MY1967 O.C3282
1414 E 2 28MY1967 0.10411
1432 A 4 13JN1967 0.01533
1435 C 7 13JN1967 0.03*73
1*38 E 5 14JN1967 0.06173
1511 E 2 1SE1967 0.0061*
1538 E 5 23SE1967 0.01105
1382 ES 6 10HY1967 0.02220
1386 GS10 12KY1S67 0.01149
1389 £S13 12HY1967 0.00516
1398 GS22 14MY1967 C.CC911
14?8 MU 2 29HY1967 0.00603
1422 GA 2 23HY1967 C. 01022
(46924 CH 10HY1946 0.00282
1254 D 2 15JL1964 0.013*1
1281 E 3 16SE1964 C. 00785
1344 C 3 25AP1967 0.02151
1347 E 2 23AP1967 0.00650
1369 A 4 *HY1967 0.048*6
1372 C 5 5HY1967 0.06029
1375 E 3 7HY1967 C. 01925
1*09 A * 23MY1967 0.05356
1412 C 5 31HY1967 0.0*630
1415 E 3 28MY1967 0.07870
1*33 C 3 17JN1967 0.08397
LJ436 E 2 15JN1967 0.02L71
1446 A 3 UJL1967 C. 00978
1512 E 3 1SE1967 O.C0393
1377 GS 1 9HY1967 0.05937
138* GS 8 10MY1967 0.01109
1387 GS11 12HY1967 0.02376
139* GS18 13KY1967 0.00344
1567 GS15 50C1967 0.01111
1*26 MS 2 29HY1967 0.02100
1424 Kfs 2 25MV1967 0.02665
146906 CH MY1947 0.00531
1 1Z55 0 5 15J11964 C.C1027
"*1 * 3 19AP1967 C.OC86B
13*5 C S 25AP1967 C.OC975
13*a E 5 23AP1967 C.CC548
1370 * 6 3MY1S67 0.00691
1373 C 7 5MY1967 C. 13121
«™ E 5 6HY1967 C. 01687
1410 A 6 24MY1967 C-Q4511 I
«» C 7 25HY1967 0,02527
1416 E 5 2BMY1967 C.OCB75
1*34 C 5 17JN1S67 O.OtSSO
"" <• ^ 16JL1967 0.06496
1537 * 3 24SE1967 C 01725
1380 GS 4 9HY1961 C. 01009
1385 GS 9 10KY1967 0.009*:
1388 GS12 12HY1967 C.C1810
1397 CS21 13HY1967 clfl""
,lfnn fS" »OC1967 C.OCZS7
1400 SB 2 6MY1967 C 0,1191
106
-------
Melosira islandiea 0. Mull.
Melosira -island-lea 0. Muller, Jahrb. wissench. Bot., 43:56, pl. 1, figs.
~"
Cells cylindrical, joined by the valve faces into long, closely ap-
pressed filamentous colonies. Individual valves of specimens from Lake Michi-
gan 8-30p in diameters, 7-21y high (valve mantle). Pseudosulcus little de-
veloped, apparent only as a narrow, sharply-angled identation. Sulcus a
shallow furrow with an internal thickening intruding into the interior of
the cell. Neck short, in optical section more or less bowl-shaped. Degree
of silicification and ornamentation of the frustule highly variable. Orna-
mentation of the valve surface consists of numerous, randomly arranged, small
areolae. The margin of the valve is usually furnished with a corona of very
small and inconspicuous spines. Ornamentation of the valve mantle is pleo-
morphic. In all cases the elements are arranged in rows running parallel to
the pervalvar axis. The following types of ornamentation may be found:
Status a: Ornamentation of the valve mantle consisting of rows of
coarse, circular areolae. Areolae rows 10-12 in lOy with 12-13 areolae in
lOy within the individual rows. Frustules are heavily silicified.
Status 3: Both finely and coarsely areolate frustules found in the
same colony.
Status f : Ornamentation of the valve mantle consisting of fine circular
areolae. Areolae rows 13-16 in lOy with 14-18 areolae in lOy within the rows.
This species is usually abundant and often dominant in spring collec-
tions from Lake Michigan. Populations from the offshore waters have usually
been referred to M. island-tea subsp. helvetica 0. Mull. In the material that
we have examined we can finc> no justification for the sub-specific designa-
tion for specimens from Lake Michigan. The populations of variable mor-
phology grade together to the extent that any separation is entirely arti-
ficial. It appears that environmental conditions determine the degree of
silicification to at least a certain degree as collections from the eutro-
phied portions of the lake contain only coarsely structured specimens. Auxo-
spore populations are common and post-auxospore cells usually are charac-
terized by much foreshortened pervalvar axes.
339 HEISLAVH TCT NO OF STATIONS 311
(60973 CH 1876 3.61360
1 3507 CH 19FE1881 4.75436
146917 CH 12JA1946 0.18021
146424 CH 10MY1946 51.40315
146905 CH JA1947 1.07611
146916 CH 4HY1947 1.03653
(46907 CH JL1947 0.80131
J4675H FV 5JN1937 34.34846
(46745 EV 3JL1937 0.18809
146757 EV 25JL1937 2.29166
(46769 EV 7SE1937 0.04342
(46744 EV 6001937 0.23410
146749 EV 12MR1938 27.86745
146751 EV 30HR1938 56.58775
(46759 EV 19MY1938 80.35110
( 1223 B 3 18MY1964 75.91217
1226 C 7 16MY1964 43.68340
1229 D 5 14HY1964 43.66580
1232 E 5 16MY1964 51.13220
J_1235 C 7 16JN1964 7.90804
1237 C1 2 8JN1964 30.31708
1240 0 6 10JN1964 57.12444
1243 E 6 13JN1964 48.52585
1246 F 3 1LJN1964 17.15173
1440 B 6 11JU964 21.667B3
1250 C 6 10J1.1964 42.87769
( 3540 CH 11MY1879 6.61948
(46921 CH 23N01945 C. 00194
(46915 CH 20FE1946 1.84943
(46923 CH 22N01946 0.08305
146509 CH MJU947 12.13515
146906 CH HY1947 14.84C18
146913 CH 6AU1947 0.26148
(46771 EV 11JM937 5C. 72511
(46770 EV 9JL1937 0.03578
(46747 EV 1AU1937 2.91111
(4C752 EV 15SE1937 0.06530
(46748 EV 130C1937 78.30913
(46768 EV 16MR1938 58.03322
(46772 EV 1SAP1938 61.80269
(46761 EV 27HY1938 36.93448
( 1224 B 4 18HY1964 62.89383
( 1227 C' 2 13HY1964 41.60544
( 1230 E 2 16HY1964 54.76366
1233 B 3 5JN2964 29.17291
1439 8 6 5JN1964 43.91608
1236 D 3 11JM964 77.70000
1241 E 2 13JN1964 6C. 79486
1244 F 1 11JM964 11.20577
1247 B 3 14JL1964 21.81242
1441 B 6 24JL1964 44.40625
1251 C 7 16JL1964 6.28657
3541 CH 1FE1881 5.92781
46908 CH OE1945 0.46324
46914 CH 19AP1946. 38.55402
46920 CH 200E1946 0.13033
46912 CH AP1947 25.41106
46919 CH 5JN1947 C. 19727
46922 CH 21AU1947 C. 37802
(46743 EV 20JN1937 20.86151
46764 EV 17JL1937 2.25624
(46763 EV 23AU1937 1.C349C
46760 EV 22SE1937 C. 02462
46767 EV 27CCI937 C.OS029
(46762 EV 16HR193G 2.82311
46756 EV 27AP1938 41.84225
46766 EV 140E1938 C. 14259
1225 C 6 15MY1964 57.35005
1228 D 2 14HY1964 58.03928
1231 E 3 16MY1964 72.42441
1234 B 3 18JM964 16.72B52
1236 C* 1 8JN1964 30.01819
1239 C 4 11JN1964 55.31766
1242 E 3 13JN1964 £8.12157
1245 F 2 11JM964 13.06964
1248 B 3 24JL1964 17.24205
1249 C 3 8JL1964 34.22052
1252 C1 1 16JL1964 11.12971
107
-------
1 1253 C* 2 16 JL 1964 38.82143
I 1256 E 2 14JL1S64 60.0131R
1259 F 2 6JL1964 2C.6C60S
1262 B 3 17AU1964 6.32087
1263 C 7 I5AU1964 3.36269
1266 D 3 1BAU1964 20.1346?
1269 E 3 15AU1964 35.49306
1271 C 7 22SE1964 0.91402
1274 D 1 17SE1S64 7.22564
1277 0 4 18SE1964 5.20511
1260 E 2 16SE1964 53.37326
12B3 E 5 16SE1944 24.8866C
1286 F 2 15SE1964 9.96060
1445 B 6 14GC1S64 0.83496
1291 C' 2 16GC1964 0.34245
1294 D 3 150C1964 1.09767
1297 D 6 140C1964 4.53143
1300 E 3 13CC1964 5.76338
1303 E 6 130C1964 7.83611
1106 F 3 110C1964 0.27163
1309 C' 1 10N01964 0.00322
1312 D 2 8N01964 0.29179
1315 D 5 9N01964 C. 57780
1318 E 2 7N01964 0.44518
1321 E 5 7N01964 0.33516
1324 F 2 6N01964 0.44954
1337 C 3 2MR1967 53.49872
1340 C 7 28MR1967 56.24677
1343 A 6 19AP1967 42.21233
1346 C 7 21AP1967 68.32413
1368 A 3 4MY1967 52.56047
1371 C 3 4MY1967 67.22379
1374 E 2 7HY1967 59.20502
1408 A 3 23MY1967 32.86678
1411 C 3 31MY1967 54.28137
1414 E 2 28MY1967 63.94626
1431 A 3 12JN1967 34.42593
1434 C 5 17JN1967 65.52817
1437 E 3 15JN1967 69.71173
1447 A 4 11JL1967 22.10422
1*50 C 5 16J1.1967 35.58983
1505 A 4 28AU1967 3.96784
1510 C 7 29AU1967 1.77047
1513 E 5 31AU1967 4.25661
1534 A 6 19SE1967 0.0186J
1537 E 3 24SE1967 9.96291
1540 C 5 4001967 0.63037
1543 E 5 10CC1967 0.50280
1379 GS 3 9WV1967 17.11438
1382 GS 6 10MY1967 48.18340
1385 GS 9 10NY1967 35.10629
1388 GS1? 12WY1967 25.T6169
1391 GS15 12HY1967 17.09523
1394 GS18 13WY1967 4.57563
1397 GS21 13MY1967 1.09881
1555 GS 2 30C1967 2.96610
1558 GS 5 40C1967 2.08102
1561 GS 9 4QC1967 9.86089
L1564 __ GS12 5DC1967 0.02798
1567 GS15 50C1967 0.61127
1570 GS18 5CC1967 0.63467
1574 GS22 6QC1967 3.02019
1524 Ml'. 1 20SE1967 0.04378
1523 RA 1 19SE1967 0.00923
1528 SB 1 2CSE1967 0.21658
1531 GH 1 25SE1967 0.05072
1549 MO I 40C1967 0.78114
1550 MR 1 5GC1967 0.09912
1426 HS 2 29MY1967 6.71916
1417 HO Z 22MY1967 4.42650
1425 RA 2 25MY1967 29.84705
1402 TR 2 6MY1967 50.76889
1353 FR 2 23AP1967 6.58228
1403 CA 2 10MY1967 16.11089
1407 SM 2 14MY1967 3.53496
1420 IH 2 23MY1967 10.39275
1424 KN 2 25MY1967 27.28484
1 1254 0 2 15JU964 54.29994
( 1257 E 3 14JL1964 64.14642
< 1260 F 3 6JL1964 17.78175
1 1442 B 6 2AU1964 18.15079
( 1264 C1 1 100U1964 1C. 13670
< 1267 D 6 18AU1964 0.65716
I 1270 f 1 10AU1964 4.38393
1 1272 C' 1 10SE1964 8.90695
( 1275 D 2 17SE1964 5.41900
1 1278 D t 18SE1964 2.15227
( 1281 E 3 16SE1964 29.39214
1 1284 E 6 17SE1964 4.89308
( 1287 F 3 15SE1964 6.30504
I 1289 C 7 14CC1964 C. 67719
1 1292 D 1 150C1964 0.71929
( 1295 0 4 15CC1964 1.39137
1 1298 E 1 12CC1964 0.29082
< 13C1 E 4 130C1964 11.12779
( 1304 F 1 110C1964 0.57789
I 13C7 6 6 1401964 C. 80820
1 1310 C' 2 10N01964 0.08163
( 1313 C 3 9N01964 0.22973
1 1316 D t 9NQ1964 1.58658
I ( 1319 E 3 7N01964 1.09968
1 1322 E 6 7N01964 0.77982
( 1325 F 3 6f,Cl964 0.35265
1 1338 C 3 28MR1967 51.46242
( 1341 A 3 19AP1967 55.05353
( 1344 C 3 25AP1967 66.82108
( 1347 E 2 23AP1967 58.84074
1 1369 A 4 4PY1967 73.05527
I 1372 C 5 5MY1967 62.06554
I 1375 E 3 7MY1967 61.98416
( 1409 A 4 23KY1967 49.57448
( 1412 C 5 31WY1967 63.64171
( 1415 E 3 28MY1967 68.30957
( 1432 A 4 13JN1967 52.03329
( 1435 C . 13JN1967 55.25211
( 1438 E 5 14 JN 196 7 68.88162
I 1448 A 6 10JL1967 0.17330
( 1451 C 7 16JL1967 8.81855
I 15C8 C 3 2SE1967 5.31532
( 1511 E 2 1SE1967 5.58676
( 1532 A 3 18SE1967 0.45991
( 1535 C 1 20SE1967 0.22532
( 1538 E 5 23SE1967 6.18682
( 1541 E 2 110C1967 1.61779
{ 1377 GS 1 9MY1961 59.01443
I 1380 GS 4 9MY1967 16.24347
t 1383 GS 7 10MY1967 33.3C838
( 1386 GS10 12HY1967 46.85434
I 1389 GS13 12MY1967 7.40015
( 1392 GS16 12MY1967 14.23860
[ 1395 GS19 13MY1967 3.37036
I 1398 GS22 14MY1967 27.20345
( 1556 GS 3 3QC1967 1.22021
( 1559 GS 7 4001967 5.87536
1 1562 GS10 5CC1967 16.57867
( 1565 GS13 50C1967 0.03549
( 1568 GS16 5QC1967 0.65656
( 1571 GS19 60C1967 C. 00410
{ 1575 GS28 £001967 0.04129
( 1546 LU 1 2QC1967 0.02001
( 1526 HO 1 20SE1967 0.71685
1 1529 Kh 1 20SE1967 0.81545
( 1545 WL 1 20C1967 C. 06081
I 1551 ES 1 5QC1967 0.03195
I 1553 SG 1 6GC1967 0.14689
( 1351 Ml 2 21AP1967 31.08145
( 1418 SH 2 22KY1967 3.23484
( 1399 PW 2 5MY1967 5C. 92491
( 1400 SB 2 6KY1967 48.79675
( 1354 GH 2 25AP1967 7.45663
( 1404 HO 2 10MY1967 8.13008
1 1349 CI 2 19AP1967 44.42847
( 1421 CH 2 23HY1967 18.04301
1 1430 MC 2 12JIU967 C. 04935
( 1255 i: » 1SJL1964 38.44771
( 1258 F 1 6JL1964 12.38879
( 1261 B 3 2AU1964 3.98383
1443 8 6 16AU1964 19.09619
1265 C' 2 10AU1964 5.47694
126B £ 2 15AU1964 32.93516
1444 B 6 19SE1964 17.6J192
1273 C1 2 10SE1964 5.4C911
1276 0 3 18S61964 1?. 55743
12?S E 1 16SE1964 7.14650
!282 E 4 16SE1964 8.53186
1285 f 1 15SE1964 4.68814
1288 B 3 150C1964 0.36571
1290 C1 1 160C1S64 C.C7580
1293 D 2 150C1964 0.30186
1296 D 5 14CC1S64 C. 75933
1299 E 2 120C1964 3.95853
1302 E 5 130C1964 4.81820
1305 F 2 110C1964 C. 21909
1308 C 7 6N01964 C. 46838
1311 D 1 8N01964 0.00774
1314 0 4 9N01964 0.55407
1317 E 1 6NC1964 0.00574
1320 E 4 7N01964 0.66598
1323 F 1 6ND1964 C. 24390
1336 C 3 27JA1967 3.23494
1339 C 5 28^1967 49.10519
1342 A 4 19AP1967 46.38214
1345 C 5 25AP1967 47.75548
1348 E 5 23AP1967 56.23029
1370 A 6 3HY1967 64.12704
1373 C 7 5MY1967 76.67293
1376 E ! 6MY1967 36.2C418
1410 A 6 24MY1967 46.17726
1413 C 7 25MY1967 72.3C627
1416 E 5 28MY1967 57.86263
1433 C 3 17JM967 16.08551
1436 E 2 1SJN1967 49.89868
1446 A 3 11JL1967 21.06C61
1449 C 3 16 JL 1967 24.07428
1452 E 2 14JL1967 11.17640
l*n& 1 3 28AU1961 4.14764
1509 C 5 2SE1967 19.78398
1512 E 3 1SE1967 12.64332
1533 A 4 19SE1967 0.77987
1536 E 2 24SE1967 4.19916
1539 C 3 40C1967 0.02013
1542 E 3 11CC1967 C.78316
1378 CS 2 9MY1967 33.85054
1381 6S 5 10KY1967 22.87363
1384 GS 8 10HY1967 49.30214
1387 GS11 12MY1967 33.82445
1390 GS14 12MY1967 13.97534
1393 6S17 13MY1967 16.87486
1396 GS20 13MY1967 C. 82866
1554 GS 1 30C1967 1C.95B51
1557 ES 4 30C1967 6.27803
_ 1560 CS 8 40C1967 8.26524
1563 GS11 5CC1967 7.2C198
1566 GS14 SOC1967 C. 64208
1569 GS17 50C1967 0.34784
1573 GS21 60C1967 C. 03024
1547 CS 20C1967 2.29940
1520 hO 18SE1967 C.75440
1527 TR 20SE1967 C. 15723
1530 FR 24SE1967 C. 84008
1548 CA 30C1967 0.03816
1552 SM 60C1967 C. 25091
1428 HI 2 29MY1967 C. 14764
1427 LU 2 29HY1967 15.37045
1350 Bh 2 19AP1967 C.9E676
1401 HO 2 6MY1967 50.79962
1352 KM 2 21AP1967 19.92784
1429 KL 2 29MY1967 0.2C172
1-405 ES 2 12NY1967 1.44479
1419 BU 2 23MY1967 16.40424
1422 GA 2 23MY1967 15.04113
.
Melosira -italioa subsp. subca>tioa 0. Mull.
Melos-Cra italioa subsp. subart-Cca 0. Mttller, Jahrb,
pl. 2, figs, 7-11. 1906.
Wiss. Bot., 43:78,
108
-------
Cells cylindrical, joined by the valve faces into long, more or less
closely appressed colonies. Individual valves of specimens from Lake Michi-
gan 7-15y in diameter, 5-20y high (valve mantle). Valve mantle parallel
valve surface flat or only slightly convex. Pseudosulcus very small not
apparent. Sulcus moderately deeply incised, forming a broad angle with a
conspicuous internal thickening extending into the lumen of the cell Neck
very short and poorly defined. Degree of silicification of the valve man-
tle variable, usually moderately strong. Ornamentation of the valve surface
is comprised of very fine, irregularly arranged puncta with elongate ray-
like puncta at the margins. The margin of the valve surface is furnished
with a corona of small species. Ornamentation of the valve mantle comprised
of spiral rows of fine, usually more or less elongate, puncta. This species
is somewhat pleomorphic but does not exhibit the pronounced structural dif-
ferences found in other members of the genus. Strongly silicified forms
(a status) with about 18 striae in lOp and the same number of puncta in lOp
within the striae. Weakly silicified forms (ir status) with about 20 striae
in lOy and about 22 puncta in lOp within the rows.
This entity occurs sporadically in our collections from Lake Michigan.
It is common in a number of habitats surrounding the lake, and the popula-
tions we have encountered are perhaps derived from tributaries to the lake
which became established in the open waters.
340 MEITALIC TCI KC Cf STATIONS 172
(4A90S CH OE1945 C.05035 ) (46S14 CH 19AP1946 0.00214
146909 CH NR1947 0.00455
1224 B 4 18MY1964 0.10979
1227 C« 2 13KY1964 0.01645
1230 E 2 16MY1964 0.21633
1439 B 6 5JN1964 0.01399
173S D 3 11JN1964 0.09600
1241 E 2 13JN1964 0.07836 .
1244 F 1 UJN1964 0.00548
1440 B 6 11JL1964 0.00369
1255 D 5 15JL1964 0.00513
1259 f 2 6JL1964 0.00310
1268 E 2 15AU1964 0.00547
1281 E 3 16SE1964 0.01570
1300 E 3 130C1964 0.01074
1317 E 1 6N01964 0.00574
1321 f 6 7N01964 0. 01000
1338 C 3 28MR1967 2.96187
1341 A 3 19AP1967 1.51872
1344 C 3 25AP1967 1.2738C
1347 E 2 23AP1S67 6.71490
1369 A 4 4HY1967 3.65276
1372 C 5 5MY1967 4.96524
1375 E 3 7HY1967 6.40054
1409 A 4 23MY1967 4.99911
1412 C 5 31MY1967 5.89275
1415 E 3 2BMY1967 5.S2363
1432 A 4 13JN1967 5.90066
1435 C '7 13JM967 0.88403
1438 E 5 14JN1967 2.16049
1448 A 6 10JHS67 0.02829
1451 C 7 16JL1967 0.06693
1454 E 5 15JL1967 O.C1600
1509 C 5 2SE1967 0.31796
1513 £ 5 31AU1967 0.02534
1535 C 7 20SE1967 0.00644
1538 E 5 23SE1S67 0.09391
1542 E 3 110C1967 0.47803
1379 CS 3 9MY1967 0.12998
1382 GS 6 10MY1967 0.97144
1385 GS 9 10MY1967 0.76758
1388 GS12 12KY1S67 1.03167
1391 GS15 12HY1967 0.51717
1394 GS18 13MY1967 C.11009
1397 GS21 13HY1967 0.00589
1555 GS 2 3DC1967 0.01059
1563 GS11 5DC1967 0.00468
1569 GS17 50C1967 0.01189
1574 CS22 AHC1967 0.00863
1549 HO 1 4DC1967 0.01370
1426 US 2 29HY1967 1.06037
1417 HO 2 22HY1967 0.13085
1401 an 2 6KY1967 0.37041
1352 KW 2 21AP1967 0.10308
1429 WL 2 29PY1967 0.16987
1407 SM 2 14PY1967 0.02388
1421 CH 2 ?3MY1967 0.05205
( 1424 KN 2 25HY1967 0.02665
) (469C6 CH MY1947 C. 00066
( 1225 C 6 15HY1964 C. 00784
I 1228 0 2 14MY1964 0.34061
1231 E 3 16HY1964 0.03180
1236 C> 1 8JN1964 0.0122S
1239 0 4 11JN1964 0.00464
1242 E 3 13JN1964 0.14837
1245 F 2 11JN1964 0.01383
1250 C 6 10JL1964 0.02878
1256 E 2 14JL1964 0.06412
1260 F 3 6JL1964 0.00764
1269 E 3 15AU1964 0.09319
1297 0 6 140C1964 0.00190
1301 E 4 130C1964 0.00442
1320 E 4 7N01964 0.00414
1336 C 3 27JA1967 0.19641
1339 C 5 28HR1967 4.80140
1342 A 4 19AP1967 1.51589
1345 C 5 25AP1967 7.50443
1348 E 5 23AP1967 1.91912
1370 A 6 3HY1967 0.60536
1373 C 7 5HY1967 3.99338
1376 E 5 6MY1967 0.98381
1410 A 6 24HY1967 0.51308
1413 C 7 25HY1967 3.31680
1416 E 5 28HY1967 1.68383
1433 C 3 17JN1967 1.80855
1436 E 2 15JN1967 7.85208
1446 A 3 11JL1967 0.42806
1449 C 3 16JL1967 1.73870
1452 E 2 14JL1967 0.48537
15C4 A 3 28AU1967 0.01481
1511 E 2 1SE1967 0.06139
1532 A 3 18St 1967 0.02957
1536 E 2 24SE1967 0.04090
1539 C 3 40C1967 C.03C19
1377 GS 1 9HY1967 6.64951
1380 GS 4 9KY1967 0.23541
1383 GS 7 10HY1967 0.53464
1386 GS10 12PY1967 2.61419
1389 GS13 12HY1967 0.32746
1392 GS16 12CY1S67 0.09554
13S5 GS19 13MY1967 0.32882
1398 CS22 14KY1967 2.33780
1556 GS 3 30C1967 0.005Z1
1567 C-S15 5GC1967 0.01746
1570 GS18 5DC1967 0.00992
1526 HO 1 20SE1967 0.00569
1550 MR 1 5QC1967 0.02478
1351 HI 2 21AP1967 0.22964
1425 RA 2 25HY1967 0.01768
1402 TR 2 6MVKJA7 0.454B4
( 1353 FR 2 23AP1967 0.10549
( 1403 CA 2 10HY1967 C. 20923
( 1349 Cl 2 19AP1967 0.03233
( 1422 GA 2 23MY1967 C. 02044
(469C5 CH JA1947 C.0036B 1
1223 B 3 18HY1964 C.OC156
1226 C 7 16MY1964 C. 01522
1229 0 5 14HY1964 C. 08881
1232 E 5 16MY1964 C. 24349
1237 C> 2 8JN1964 O.C4640
1240 0 6 10JN1964 0.02148
1243 E 6 13JM964 C.C3758
1246 F 3 1 UN 1964 0.03586
1254 0 2 15JL1964 C. 00575
1257 E 3 14JL1964 0.06939
1262 B 3 17AU1964 C.OC630
1270 f 1 10AU1964 C.OC272
1299 E 2 120C1964 C. 00314
1304 F 1 110C1964 C. 00988
1321 E 5 7N01964 C.OC9S8
1337 C 3 2HR1967 4.62970
1340 C 7 28MR1967 1.47616
1343 A t 1SAP1967 C. 12158
1346 C 7 21AP1967 1.68240
1368 A 3 4MY1967 3.29877
1371 C 3 4MV1967 4.84787
1374 E 2 7MV1967 4.18410
1408 A 3 23MY1967 1.S65C8
1411 C 3 31MY1967 1.7<322
1414 E 2 28KY1967 1.17548
1431 A 3 12JN1967 C.63084
1434 C 5 17JN1967 5.65259
1437 E 3 15JM1967 4.14502
1447 A 4 11JL1967 C. 32747
1450 C 5 16JL1967 2.53261
1453 E 3 15JL1967 13.26997
1506 A 6 29AU1967 C. 01046
1512 E 3 1SE1967 3.02340
1534 A 6 195E1967 C.CC620
1537 E 3 24SE1967 0.83240
1541 E 2 110C1967 t. 39381
1378 GS 2 9MY1967 C. 63496
1381 GS 5 10HY1967 C. 36493
1384 GS 8 10NY1967 0.77641
1387 CS11 12MY1967 1.01394
139C GS14 -12HY1967 C. 24662
1393 GS17 13HY1967 C.2S586
1396 GS20 13KY1967 C.OC666
1554 GS 1 30C1967 0.17790
1S62 CS10 50C1967 C. 00987
1568 GS16 50C1967 C.OC144
1571 GS19 60C1S67 C.OC059
1528 SB 1 20SE1961 C.C1444
1428 KU 2 29HY1967 0.00301
1427 LU 2 29MY1967 2.13075
1399 PH 2 5MY1967 C. 74129
1400 SB 2 6HY1967 1.00071
1354 GH 2 25AP1967 C. 08976
1405 ES 2 12HY1967 C.CI290 ]
1419 BU 2 23NY1967 C. 03662
1423 *A 2 25HY1961 C.C6423 1
( •
109
-------
Melosiva undulata (Ehr.) Kxitz.
Gaillonella undulata Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:17. 1840.
Melosira undulata (Ehr.) Kiitzing, Bacill., p. 54, pi. 2, fig. 9. 1844.
Cells cylindrical, joined by the valve faces into short, poorly^adhering
colonies. Individual valves of specimens from Lake Michigan 20-70y in dia-
meter, 20-35u high (valve mantle). Valve mantles parallel, valve surfaces
flat in the center, convex only at the margins, therefore forming a narrow
and inconspicuous pseudosulcus. The sulcus and associated structures are
entirely lacking. The walls of the frustule are of varying thickness, thin
at the girdle margins, much thicker at the valve mantle, then becoming some-
what thinner again at the valve surface. As the outer margins of the valve
mantle are straight and parallel, the variable thickness of the wall makes
the inner surface appear undulate from which the name of the taxon is derived.
The ornamentation of the valve mantle consists of straight, parallel rows of
puncta, about 16 in 10u, with complex substructure and apparently subtended
by chambers. A conspicuous corona of slime pores is present on the valve
mantle about one-third of the distance between the valve surface and the
girdle margin. These pores enter the interior of the frustule through a
small nipple-like projection on the interior wall. Ornamentation of the
valve surface consists of anastomosing radial striae of varying lengths hav-
ing the same structure as the striae of the valve margin. A small, struc-
tureless, area is present at the center of the valve. In some specimens the
ornamentation of the wall surface spirals around the midpoint.
This entity is very rare in plankton collections from Lake Michigan.
It appears that the specimens found are derived from populations that exist
in periphyton communities in relatively deep water (50+m). As Hustedt (1927)
points out, the reported modern distribution of this species is primarily
tropical, although it is present in tertiary deposits throughout central and
northern Europe. Its occurrence in the deep waters of Lake Michigan is some-
what puzzling, although it should be pointed out that a morphologically very
similar entity, Cyolotella fottii Hust. (Fott, 1935; Jurilj, 1954), has been
reported from similar habitats in Lake Ohrid.
In life the colonies are attached to rocks or other solid substrates by
slime strands arising from the pores of the terminal cell of the colony. Both
the attachment to the substrate and the attachment of the cells to one another
is tenuis so that individual free cells are often found.
Coll: 973.
Melos-ira undulata var. noxmanii- Arnott ex V. H.
Melosira undulata var. normanii- Arnott ex Van Heurck, Syn. Diat. Belgique,
pi. 90, fig. 7. 1882.
In this entity the interior surface of the valve mantle is polygonal.
The interior opening of the slime pores occurs at the angles of the polygon
and the nipple-like structure surrounding the pore tends to be more highly
developed than in the nominate variety. On the basis of the limited number
of specimens we have observed from Lake Michigan it appears that the spiral
arrangement of the valve ornamentation is more common in this entity than it
is in the nominate variety, although both types of ornamentation are found
in both taxa.
110
-------
Very rare in plankton collections from Lake Michigan. It is suspected
that the specimens observed are derived from deepwater periphyton communities,
The reported distribution of this entity is more northern than that of the
nominate variety (Hustedt 1927).
341 MEUNOUVM TCT NO OF STATIONS
GS21
( 1573
6CC1967 0.00112 ) ( 1550
MR 1
50C1S67 C.03717 ) (
Melosira varians Ag.
Meloslra varians Agardh, Syn. Alg., p. 78. 1817.
Cells cylindrical, joined by the valve faces into long, closely appressed
colonies. Individual valves of specimens from Lake Michigan 10-33y in dia-
meter, 8-13y high (valve mantle). Valve mantles parallel, valve surfaces only
slightly convex, therefore forming an inconspicuous pseudosulcus. The sulcus
and associated structures are entirely lacking in this species. The walls of
the frustule are of similar thickness throughout. The ornamentation of both
the valve surface and the valve mantle is composed of very fine puncta which
can barely be resolved with the light microscope under optimum optical condi-
tions. In normal preparations the wall appears homogeneous.
This species is occasionally found in nearshore plankton collections
from Lake Michigan, especially in areas that have been appreciably eutro-
phied. Its reported distribution indicates that it reaches its greatest
abundance in highly eutrophic waters. It apparently finds its primary habi-
tat in benthic communities although it is not uncommon in the plankton of
highly polluted lakes and streams.
342 NEVARIAN TOT KG OF STATIONS
146762 EV 18HR1938 C. 04411 1
I 1547 ps 1 20C1S67 0.03992 )
1521 SH 1 18SE1967 1.10778 1
1526 MD 1 20SE1967 O.CC569 1
1531 GH 1 25SE1967 2.97549 »
I4?fc MS 7 29MY1967 0.66142 )
1418 SH 2 22MY1967 1.69518 )
1400 SB 2 6MY1967 0.00596 )
1406 GB 2 13MY1967 0.01617 >
1571 GS19 60C1967 0.00527
1546 LU 1 20C1967 C. 01000
1522 BH 1 18SE1967 0.00365
1529 KVi 1 20SE1967 0.01199
1550 MR 1 50C1967 1.58592
1427 LU 2 29MY1967 3.09927
1350 BH 2 19AP1967 C. 15418
1354 GH 2 25AP1967 0.00690
1422 GA 2 23MY1967 0.05620
1544 KU 1 20C1967 C.OC477
1520 HO 1 18SE1967 C. 02829
1523 RA 1 19SE1967 C. 02768
1530 FR 1 24SE1S61 C. 35003
1428 KU 2 29HY1967 0.25310
1417 HO 2 22MY1967 C. 03365
1401 PO 2 6MY1967 C.C2940
1429 ML 2 29MY1S47 C. 14864 1
1423 HA 2 25MY1967 C.CC428 1
Species
sedis
Melosira sp. #1.
343 MESPECOA TCT HO OF STATIONS
1229 D 5 14MY1964 O.C5921
1232 E 5 16MY1964 0.40697
1241 E 2 13JN1964 O.C0739
1262 B 3 17AU1964 0.00840
137J3 A 6 3MYIS67 0,09667
1416 E 5 28MY1967 0.01749
1 |512 E 3 1SE1967 Q. 01571
1380 GS 4 9MY1967 0.01513
1385 GS 9 10MY1967 0.00942
1390 GS14 12KY1967 0.01174
1394 GS18 13MY1967 0.00172
1351 HI 2 21AP1967 0.01241
1230 E 2 16KY1964 0.04149
1235 C 7 16JN1964 0.00565
1242 E 3 13JN1964 C. 00899
1281 E 3 16SE1964 0.00785
1372 C 5 5MV1967 C. 02128
1435 C 7 13JN1967 0.00631
1537 E 3 24SE1967 0.02588
1381 GS 5 10MY1967 0.02147
1386 6S10 12MY1967 0.01724
1391 GS15 12MY1967 0.02873
1395 GS19 13MY1967 0.01644
1401 MO 2 6MY1967 0.02352
1231 E 3 16MY1964 C. 34243 t
1237 C1 2 8JM1964 0.00516 )
1257 E 3 14JL1964 C.CC47-)
1346 C 7 21AP1967 C. 00534
1375 f. 3 7MY1967 C.OC481
1450 C 5 16JL1967 C. 00381
1379 SS 3 9HY1967 C.OC619
1384 GS 8 10MY1967 C. 00739
1389 4513 12MY1967 C. 00774
1393 GS17 13MY1967 C. 0109*
1554 GS 1 30C1967 C.OC712
1400 SB 2 «NY1S61 C.1C72!
Ill
-------
Genus Meridian Agardh
Agardh, Syst. Alg., p. 14. 1824.
Members of the genus Meridian find their primary habitat in periphyton
communities. Only occasional specimens are found in plankton collections
from Lake Michigan and these are undoubtedly derived from shoreline sources.
Meridian cireulare (Grev.) Agardh
Eohinella eiraularis Greville, Mem. Vernerian Nat. Hist. Soc., 4:213,
pi. 8, fig. 2. 1822.
Meridian circulate (Grev.) Agardh, Consp. Grit. Diat., pt. 3, p. 40. 1831.
344 MRCIRCUL TCT NO OF STATIONS
1 46743 EV 20JN1937 0.00428
1394 GSl'8 13MY1967 O.OQ344
1544 KU 1 2CC1?67 0.00238
1426 HS 2 29MY1967 0.01050
1418 SH 2 22MY1S67 0.03110
1400 SB 2 6HY1967 0.02383
1404 HO 2 10MY1967 0.03811
1341 A 3 19AP1967 0.00108
1569 GS17 50C1967 0.00297
1522 BH 1 18SE1961 C. 00365
1427 LU 2 29MY1967 0.01211
13SO BH 2 19AP1967 C. 00881
1354 GH 2 25AP1967 0.00518
14C5 ES '2 12HY1967 C. 00645
1348 E 5 23AP1967 C. 00137
1571 6S19 60C1947 C. 00059
1550 CR 1 5CC1S67 C. 02478
1417 HO 2 22HY1967 C. 01122
1401 l»0 2 6MY1967 C.CC588
1403 CA 2 10MY1967 0.03923
•1407 SH 2 14MY1967 C.CC597
Meridian eirculare var. constriction (Ralfs) V. H.
f'
Meridian constriction Ralfs, Annals Mag. Nat. Hist., 12:458, pi. 18,
fig. 2. 1843.
Meridian oirculare var. constriction (Ralfs) Van Heurck, Syn. Diat. Belgique,
p. 161, pi. 51, figs. 14-15. 1885.
345 MRCIRCVC IOT NO QF STATIONS
I 1550
1 1354
MR
GH
50C1967
25AP1967
0.01239 )
0.01036 I
( 1428 HU
1 14C4 HO
29HY1967
1QHY1967
0.00301 )
0.02541 >
( 1350 BH 2
( 1405 ES 2
19AP1967
12HY1967
C.CC220 I
C.CC645 I
Genus Navicula Bory
Bory, Encyclop. Methodl., p. 562.
1824.
Naviouta is by far *the largest of the diatom genera occurring in fresh
water. Its members occupy a diversity of habits ranging from terrestrial to
occurrences in the plankton of large lakes. Probably none of the freshwater
species is euplanktonic although a number are successful facultative plank-
tonts and are regularly noted in plankton collections, even those from off-
shore areas.
Nauiaula abiskoensis Hust.
Navicula dbiskoensis Hustedt, Arch. Hydrobiol., 39:118, fig. 36. 1942.
Coll: ANSP Schulze A70.
Navieula aboensis (Cleve) Hust.
tomeensis var. aboensis Cleve, Acta Soc. Fauna Fl. Fennica,
8(2) :33, pi. 2, fig. 7. 1891.
NaviGula aboensis (Cleve) Hustedt, Bot. Not., 105:407, figs. 131-132.
Coll: 1800.
1952.
112
-------
Navicula acceptata Hust.
Navicula acceptata Hustedt, Arch. Hydrobiol., 43:398, pi. 38, figs. 66-67
1950.
_14fi HAACCEPT TOT NO OF STATICNS
( 3541
( 1305
1 1574
( 1527
1 1417
CH
F 2
GS22
TR 1
HO 2
1FE1BB1
110C1964
6C1C19&7
20SE1967
22MYI967
0.0097B 1
0.00345 )
0.00575 )
0.01258 )
(46768
( 1340
< 1544
( 1529
( 1350
EV
C 7
MU 1
KM 1
6H 2
16MR1938
28HR1967
20C1967
20SE1967
19AP1967
C. 01470 1
0.00073 )
C. 00715 1
0.01199 )
0.00661 1
1304
1555
1546
1550
CS 2
LU 1
MR 1
30C1967
50C1967
C. 00353 1
C. 01239 1
Navi.oula aocomoda Hust.
Navicula aooamoda Hustedt, Arch. Hydrobiol., 43:446, pi. 39, figs. 17-18.
-443 _ NAACCCMH TOT NO OF STATIONS 1
I 1350
BH 2
19AP1967 C.CC220 1 (
Navicula ambigua Ehr.
Navicula ambigua Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:129, pi. 2,
fig. 11(9). 1843.
37C NACUSFVA TOT NO OF STATICNS
I 1531
25SEIS67 O.OC845 ) (
Navicula amphibola var. perrieri Per. and He'rib.
Navicula amphibola var. pevrieri Peragallo and HSribaud in: Heribaud, Foss.
Diat. Auvergne, Pt. 1, p. 25, pi. 7, fig. 11. 1902.
Coll: ANSP Schulze A70.
Navicula amphicevos Kutz.
Navicula amphic&ros Kutzing, Bacill., p. 95, pi. 3, fig. 39. 1844.
Coll: 1056.
Navicula anglica Ralfs
Navicula anglica Ralfs in: Pritchard, Hist. Infus., 4th ed., p. 900. 1861.
(46905
(46907
(46757
(46752
(46761
CH
CH
r.H
EV
EV
EV
23NQ194S_
JA1947
JL1947
25JL1937
15SE1937
27MY1938
0.00065 )
0.00123 >
0.00099 )
0.00963 )
0.13061 )
O.OC273 )
(46917
(46909
(46758
(46747
146768
1
CH
CH
EV
EV
EV
12JA1946
MR 1947
5JN1937
1AU1937
16MR1938
0.00028
0.00455
C. 02496
0.00495
0.01470
(46920
(469C6
(46764
(46763
(46762
CH
CH
EV
EV
EV
200E1946
MV1947
17JL1937
23AU1937
18HR1538
C. 00092 I
C. 00066 )
C.05641 »
C. 04058 )
C.C2206 >
349 NAANGLIO TCT
(46919
( 1566
CH
GS14
HC CF SKTICNS 6
5JN1947
50C1967
C. 00303 )
0.00183 I
(46922
( 1550
CH
MR 1
21AU1947
50C1967
C-00097 ) (46747
0.01239 ) ( 1404
ev
« 2
1AU1937
10MY1967
C.OC743 1
0.02541 )
anglica var. signata Hust.
Navicula anglioa. var. signata Hustedt, Ber. Deutsch Bot. Ges., 61(5):287,
pi. 8, fig. 26. 1943.
113
-------
350 NAANSIVS TCT NC CF STATIONS 19
(46915
(46760
( 1304
1 1569
J^ 1526
1 1545
1 1423
CH 20FE1946
EV 22SE1S37
F 1 11001^64
GS17 50C1967
HO 1 20SE1967
UL 1 2CC1967
WA 2 25MY1967
0.00569
0.00492
0.00247
0.00149
0.00569
0.01351
0.00428
) (46758
(46767
< 1386
1 1546
( 1527
( 1417
!
ev
GS12
LU 1
Tft 1
HG 2
5JN1S37
270C1937
12HY1967
20C1967
20SE1967
22MV1967
C. 00357 )
C. 00387 (
0.00603 )
0.00500 )
0.00629 )
0.00374 )
(46747
1 1264
( 1565
I 1521
I 1528
I 14C3
ev
C' 1
GS13
SH 1
SB 1
CA 2
1AU1937
10AU1964
50C1961
1BSE1967
2CSE1967
10MY1967
C.CC248
C.CC193
C.C5578
C. 00577
C. 01444
C.C1308
Naviaula angliaa var. subsalsa (Grun.) Cleve
Navioula turn-Ida var. subsalsa Grunow, Verb. Zool.-Bot. Ges. Wien, 10:537,
pi. 4, fig. 43b. 1860.
Navicula angliea var. subsalsa (Grun.) Cleve, K. Svenska Vet.-Akad. Handl.,
Ny Foljd, 27(3):22. 1895.
351 NAANCLVA TCT HE OF STATICNS 2
146758 EV
5JN1937 0.00357 I (46757 _EV_
25JL1937 0.00481 ) (__
Navieula angusta Grun.
Naviaula angusta Grunow, Verh. Zool.-Bot. Ges. Wien, 10:528, pi. 5, fig.
19. 1860.
MASPECCT TDT NO OF STATIONS 4
9JL1937 O.OC596 I 146766; £!_
14DE1938 0.01584 I I 1536
24SE1967 0.00273 1
I 1394 GS1B 13MY1967 0.00172 ) (
Naviaula aurora Sov.
Naviaula aurora Sovereign, Trans. American Micr. Soc., 77(2):120, pi. 3,
figs. 29-31. 1958.
352 NAAURORA TCT NO OF STtTlCNS 13
J_4JS92C_
(46764
144 760
I 1427
( 1405.
CH
EV
EV
LU 2
ES 2
20DE1946
17JL1937
22SE1537
2SHY1967
12MY1967
0.00031 )
0.00806 )
O.OC492 )
0.01211 )
0.00645 )
(46758
(46757
146762
( 14CO
<
EV
EV
EV
SB 2
5JN1937
25JL1937
1SHR113S
6KY1967
0.00357 )
0.00963 I
C.022O6 )
0.00596 )
(46771
(46747
(46756
< 1404
EV
EV
EV
MQ 2
11JIU937
1AU1937
274P1936
10MY1967
C.CC238 )
C.OC24B )
C.CC168 1
C. 01270 )
Navioula baoillum Ehr.
Naviaula baoillum Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:418
pi. 4(5), fig. 8. 1843.
KABJC1LL TCT dC GF STATIONS
1*6758
EV
5JN1937 0.00357 1 (46757
JEJL
25JL1937 C.00481 i (46747
10U1S37 C.OC495 1
(46750
24SE1937 0.00471 1
( 1392
6S16
12HY1967 0.00308 I ( 1565
5DC1967 C.01014 )
Naviaula baloaniaa Hust.
Navioula baloanioa Hustedt, Arch. Hydrobiol., 40:928, pi. 40, figs. 12-15.
1945.
354 NABALCAN TOT NO Of STATIONS 29
(46910
146914
(46920
(46S06
(46758
146764
(46763
146760
(46749
CH
CH
CH
CH
EV
EV
EV
EV
EV
GC1945
1SAP1S46
20DE1946
WY1947
5JN1937
17JL1937
23AU1937
22SE1?37
12MR1938
0.00218
0.00107.
O.OC062
0.00066
0.24249
0.136??
(46S21
(46«4
(46909
(46SC7
(46743
(46757
0.12175 ) (46765
O.OC985 1 (46750
0.01214 ) (46762
CH
CK
CH
Ch
EV
EV
EV
EV
EV
23N01945
10HY1946
HR1947
JL1947
20JN1937
25J11S37
30AU1937
24SE1?37
18HR1938
C. 00129
C. 00071
0.00911
C.0014B
(46915
(46923
(46916
(46922
0.00428 (46770
0.02889 ) (46747
0.01115 ) (46752
0.02828 t (46767
0.13233 ) (46761
Ch
CX
CH
Ch
EV
EV
EV
EV
EV
2CFE1946
22N01946
4MIT1947
21A111947
9JL1937
1AU1937
15SE1937
270C1937
27MY193B
O.OC569
C.CC437
C.OC034
C. 00242
O.OC596
C. 04354
C. 00273 1
EV
C.01S84
2EC1967 0.00238 I I
114
-------
Naviaula bryophila Peters.
Naviaula bryopUla Petersen, Bot. Iceland, Vol. 2, p. 388, fig. 13. 1928.
_J5S NABRYCPH TCT NO OF STATIONS
,146917 Cb 12JA1946 0.00028
« 1285
F 1
Naviaula oapitata Ehr.
Naviaula oapitata Ehrenberg, Infusionstliierchen, p. 185, pi. 13, fig. 20.
1838.
356 NACAPITA TCT *G OF STATIONS 18
I 1279
( 1521
_J_1550__
1 1352
E 1
MR 1
KM 2
16SE1964
18SE1967
5CC1967
22HY1967
Z1AP1967
O.OC7B5
0.01151
0.03717
( 1236
( 1286
1 1526
( 1426
0.03110 ( 1350
0.00859 t < 1407
C' 1
F 2
HO 1
MS 2
Bh 2
SM 2
8JN1S64
15SE1964
20SE1967
29MY1967
19AP1967
14MY1961
0.00175 )
0.01095 I
C. 00569 1
C. 02100 1
C. 01982 1
C.C0597 )
127
-------
Navioula oevta Bust.
Navioula oerta Hustedt, Arch. Hydrobiol., 40(4):924, pi. 42, figs. 2-3.
1945.
20C1967 0.00676 > 1 1550 HB 1
( 1351 Ml 2 21AP1967 0.00310 1 I 1350 BH 2
0.01239 1 ( 1426 *•& I 29HV1967 C.01050 )
O.OIH9 j !___ __ 10MV1967 C.01270 I
Navioula alementis Grun.
Navioula dementis Grunow in: Mojsisovics and Neumayer, Beitr,
Osterreich-Ungarns, Vol. 2, pt. 4, p. 144, pi. 30, fig. 52. 1882.
361 NACL01DC TOT KC OF STATIONS 2
, 1388 ^11 12HY1«7 0.0060n I 1527 ffi~~l 20S1U6J C.00629 T
Navi.au.la element-is var. l-ineaan-s Bander
Navieula dementis var. lineccfis Bander ex Hustedt ini A. Schmidt, Atlas
Diat., pi. 403, fig. 43. 1936.
360 NACLEPVL TCT MO OF STATIONS 2
I 1550 HR 1 5DC1967 0.0123^ I I 1128 MU 2 29MY1?67 C.00301 ) (
Navioula dementis var. quadristigmata Mang.
Navioula dementis var. quadristigmata Manguin, Rev. Algol., Nouv.
5(4):274, pi. 2 (J. pi. 27), fig. 2. 1961.
456 NASCLEHE TGT NO CF STATIONS 2
M692C CH 20CE1946 0.00062 I (46767 EV 270C1S37 0.00387 I (
Navieula oooooneiformis Greg.
Navicula oooooneiformis Gregory ea; Greville, Annals Mag. Nat. Hist., Ser.
2, 15:256, pi. 9, fig. 6. 1855.
362 NACOCCCN TCT tvC CF STATIONS S
{ 1565 6S13 50C1967 0.02028 ) I 1549 MO 1 4CC1967 0.01370 » ( 1550 fR 1 5CC1967 C.C1239 T
I 1553 SC 1 60C1967 0.00734 ) I 1407 SM 2 14HY1967 0.00597 1 I
Navicula aonfewaoea (Kutz.) Grun.
Diadesmis oonfervaaea KUtzing, Bacill., p. 109, pi. 30, fig. 8. 1844.
Navioula oonfervaoea (KUtz.) Grunow in: Van Heurck, Syn. Diat. Belgique,
pi. 14, fig. 36. 1880.
363 NACPNFER TCT NC CF STATIONS 2
t 1550 MR 1 50C1967 0.04956 1 I 1350 6H 2 1SAP1967 0.00441 1 (
116
-------
Navieula costulata Grun.
Navioula eostulata Grunow in: Cleve and Grunow, K. Svenska Vet -Akad
Handl., Ny Foljd, 17(2):27. 1880.
NtCOSTUL 1CT IMC OF STATICNS 30
U6921 CH
(46923 CH
(46916 CH
(46922 CH
146745 £V
(46747 EV
146750 EV
1*6767 EV
146762 EV
(46759 EV
23N01945
22NU1946
4MY1947
21AU1947
3JL1937
IAU1937
24SE1937
270C1937
18PR1938
19MY1938
0.00517 (46917 CH 12JA1946 0.00055 (46924 CH 10HY1946 f.CCA^S 1
0.00674 (
-------
1*6919 CH 5JN1947 0.00152
13** C 3 25AP1967 0.00165
1382 GS 6 10MY1967 0.00278
1565 GS13 50C1967 0.00507
15*4 LU 1 20C1967 0.01502
1527 TR I 20SE1967 0.22013
1530 FR 1 24SE1967 0.01000
1351 HI 2 21AP1S67 0.00310
1*00 SB 2 6MY1967 0.01191
46750 EV
1346 C
1554 GS
1574 GS2
1521 SH
1528 SB
1S45 ML
1350 BH .
1352 KM
24SE1537 C. 00471
21AP1967 0.00134
3CC1S67 0.00356
60C1967 0.04315
18SE1567 0.00577
20SE1967 0.01444
2CC1967 0. 21623
19AP1967 0.07929
> 21AP1967 0.00859
146748 EV 13CC1937 C. 02135
1348 E 5 23AP1967 0.00137
1558 CS 5 40C19*7 C.OC396
1544 PU I 20C1967 C.OCZ38
1526 KC 1 205E1967 0. 04551
1529 KH 1 20SE1967 C.OB394
1550 ff 1 50C1967 C. 16107
1401 fO 2 6MY1967 C. 01176
1407 SH 2 14MY1967 C.C2986
Na.vi.oula ouspidata (Kutz.) Kutz.
Frustulia ouspidata Kutzing, Linnaea, 8:549, pi. 4, fig. 26. 1833.
Navioula ouspidata (Kutz.) Kutzing, Bacill., p. 94, pi. 3, figs. 24, 37.
1844.
_36j> NACUSPID TCT NO OF STATIONS
1287
f 3
15SE1964 0.00500 ) ( 1369
18SE1967 0.00471 ) t 1417
A *
4MY1S67 0.00373
1 1572
22HY1967 0.00374 ! ( 1406
_CS20_
tOC1967
13MY1967
C.CC090 )
C.OC809 )
Navioula ouspidata var. major Meist.
Naviaula ouspidata var. major Meister, Beitr. Kryptog.-Fl. Schweiz,
4(1):134, Pl. 20, fig. 10. 1912.
371 NACUSPVM TCT NO OF STATIONS
( 1549 i<0~T~
4DC1967 0.01370 >
Navioula deoussis 0str.
Navioula deoussis 0strup, Danske Diat., p. 77, pi. 2, fig. 50,
1910.
372 NADECUSS TOT NO OF STATIONS 62
146910
(46915
(46923
(4£320
0.00062
0.00133
0.00145
0.01193
0.00990
0.04354
0.00488
0.0*410
0.00545
0.00329
0.00532
C. 00238
0.00*71
0.08176
0.16893
0.03150
0.08590
0.00859
0.00511
(46917
(46924
(46909
(46919
(46758
L (46764
(46763
(46760
(46748
(46751
1240
1504
1565
1547
1521
1528
1550
1427
1399
) ( 1404
) (
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
0 6
A 3
GS13
PS 1
SH 1
SB 1
CR 1
LU 2
PU 2
CQ 2
12JA1946
10MY194*
MR1947
5JN1947
5JN1937
17J11937
23AU1937
22SE1937
13QC1937
30MR1938
10JN196*
28AU1967
SOC1967
20C1967
1BSE1967
20SE1967
50C1967
29MY1961
5MY1967
10XY1967
C.CC055 1
C.OC141 )
C.C1821
C. 00303
C. 03923
C. 02417
C. 12175
C.OC492
C.C2135
0.01117
O.OC153
C.OC247
C.OC507
C.C159T >
C. 00577
C. 04332
0.0*956
C. 03632
C. 00680 )
0.0 1270
Navioula diluviana Krasske
Navioula diluviana Krasske, Zeitschr. Geschiebforsh., 9(2):90, pi. 2,
figs. 2a-b, pi. 3. 1933.
374 HAD1LUV1 1CT NO OF STATIONS
( 1388
GS12
12MY1967 0.00603 >
Navioula elginensis (Greg.) Ralfs
Pinnularia elginensis Gregory, Quart. J. Micr. Sci., 4t9 pi 1 fig 33
1856.
Navioula elginensis (Greg.) Ralfs in: Pritchard, Hist. Infusoria 4th ed
p. 902. 1861. "*
375 NAELPIM; TCT NC OF STATICNS 1
( 1350
BH 2
19AP1967 0.00220 1 !_
118
-------
Naviaula exigua var. capitata Patr.
^ioula exigua var. aapUata Patrick, Farlowia, 2(2):179, pi. 1, fig. 8.
. 377 SAEXIGVC TCT Mtl OF
_L _L545_ GSU 5CCI9_67__0 .00507_J I
Navieula exiguaformis Bust.
GS19 60C1967 C.00059 I I 1527 TR 1 20SE1967 C.OC629 1
Naviaula exiguaformis Hustedt, Arch. Hydrobiol., 40(4):929, pi. 42, figs.
21-22. 1945.
376 NAEXIGUI 1CT NO CF STAT1CNS
L46_9JL7
146906
<*«7m
1*67*7
146750
(46768
•1 U79
( 1522
L._UM5.. _
CH
CH
EV
EV
EV
EV
E 1
BH 1
WL 1
12JA1946
MY1947
9JL1927
1AU1937
24SE1937
16MR1?38
J6SE1964
18SE1S67
... 2CCIS67
O.OC028 ) (46S24
0.00066 ) (46758
_O.OC596 ! (46764
0.01485
0.01885
0.11760
O.CC393
(46763
(46748
[46762
( 1565
0.00182 I 1523
O._01351 J ( L350
CH
EV
EV
EV
EV
EV
GS13
R« 1
BH 2
10MY1346
5JN1937
17JL1937
23AU1937
13CC1937
18MR1938
5CC1967
19SE1967
19AP1967
C.COO'71 (46923
0.11768
C. 21757
0.16234
C. 10675
0.04411
0.03549
0.00923
0.00220
(46743
(46757
146752
146767
(46751
( 1546
( 1527
(
CH
EV
EV
EV
EV
EV
LU 1
TR 1
22NG1946
20JN1937
25JL1937
15SE1937
270C1937
30MR1936
2DC1967
20SE1967
C.CC219
C.OC428
C. 00963
C. 15237
C.C1547
C. 02233
C.C35C1
C.CC629
Navieula. explanata Bust.
Nav-icula explanata Hustedt, Schweizerische Zeitschr. Hydrobiol., 11:207,
fig. 7-8. 1948.
378 NAEXPLAM TCT NC CF SKT1CNS
(46761
( 1369
( 1574
( 1404
EV
EV
GS13
GS22
HO 2
5JN1937
27WY1938
60C1967
10KY1967
0.00713 )
O.OC273 1
0.00258 )
0.00575 )
0.0127C )
(4C766
( 1386
1 1394
( 1550
I
EV
GS10
GS18
MR 1
16MR1938
12MY1967
13MY1967
50C1967
0.01470 I
0.00287 )
0.00172 )
0.01239 )
(46762
1 1388
( 1565
( 1354
EV
C-S12
6S13
GH 2
18HR1536
UHY1967
SOC1967
25AP1967
C. 044 11 )
C. 01810 )
C. 01014 )
C. 00173 )
Navieula farta Bust.
Navieula farta Hustedt, Bot. Not., 105:408. 1952.
379 NAFARTi TI3T HO Cf S1AT1CNS 1
0.28395 ) (
Navieula fvaeta Bust.
Havieula fraeta Hustedt in: Rabenhorst, Kryptog.-Fl. Deutschlands, 7(2)1:
127, fig. 1259. 1961.
NAFHJCTC TTT hfi OF STATICMS
(46763
23AU1937 0.02029 I I 1300
130C1964 0.00358 ) I 1394
6S18
GS a
40C1967 0.00472 ) ( 1565
GS13
5CC1967 0.00507 ) ( 1422
23HY1967 C.OC511 )
Navieula gastriformis Bust.
Naviaula gastriformis Hustedt in: A. Schmidt, Atlas Diat., pi. 398, figs,
17-19. 1934.
381 NAGASTRI TOT NO OF STATIONS 1
( 1396
GS20
13MY1967 O.OC074 1 (
Navieula gastrum (Ehr.) Kutz.
Pinnularia gastrum Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841-.421,
pi. 3(7), fig. 23. 1843.
Navieula gastwm (Ehr.) KUtzing, Bacill., p. 94, pi. 28, fig. 56. 1844.
119
-------
3B2 NAGASTRU TCT KC OF STATIONS 23
146914 CH 19AP1946 0.00107 ) (46*20 CH 200E1946 0.00031
( 1244 F 1 11 JN 1964 0.00110 t ' IOR? c t IAJL14&4 0.00239
1341 A 3 19AP1967 0.00106
1554 GS 1 30C1967 O.OC356 |
1575 GS28 6CC1967 0.00129
1527 TR 1 20SE1967 0.01256
1550 MR 1 5CC1967 0.02476
1 1400 SB 2 6HY1967 0.00596
( 1504 A 3 28AU1967 C. 00247
1 1567 GS15 50C1967 0.00159
( 1520 HO 1 18SE1S67 C.C0471
I 1530 Fit 1 24Sil967 0.01000
( 1350 BH 2 19AP1S67 C. 01542
( 1407 SM 2 14HY1967 0.00597
(46747 8V 1AU1931 C70C495
1272 C1 1 10SF1964 0.00410
1388 CS12 12HY1967 C.CC6U3
1570 CS18 5OC1967 C. 00992
1522 BH 1 1CSE1967 C.OC91I
1545 Ht 1 20C1967 C. 00676
1402 1R 2 6NY1967 0.00541
«
Navioula gas trim var. signata Hust.
Naviaula gastrum var. signata Hustedt in: A. Schmidt, Atlas Diat., pi,
403, figs. 27-28. 1936.
_143 NAGASTVS TOT NO OF STATIONS 21
160973
(46917
(46905
146764
(46762
( 1565
1 1«6
CH
CH
CH
EV
EV
CS13
HO I
1876
12JA1946
JA1947
17JL1937
18MR193B
50C1967
20SE196T
0.04724 )
0.00055 )
O.CC490 )
0.00806 1
0.04411 )
0.04563 )
0.01138 )
( 354C
(46915
(46516
(44747
(46761
( 1574
C 1527
CH
CH
CH
EV
EV
SS22
TR 1
11MY187S
20FE1946
4KY1^47
1AU1937
27HY1S38
60C1S67
20SE146-?
C. 00466
0.01138
C. 000 34
0.00743
C. 00273
0.00288
C. 05031
(46921
146914
(46919
(46768
( 1279
1 1520
( 1417
CH
CH
CH
EV
E 1
HO 1
Hi 2
23NC1945
19AP1946
5JN1947
UMR1938
16SEU64
18SE1967
22HY1967
C.OC065 )
0.00107 )
C.CC303 )
C.C1470 )
C.CC393 )
C. 00471 )
C. 00374 1
Na.vi.oula globosa Meist.
Navieula globosa Meister, Ber. Schweizerische Bot. Ges., 44:89, fig. 8.
1934.
MAGtOBCC TCT Mj OF ST«TIO>J$ 4_
( 1527 _ TJB_1 __ ZOSE1967 O.OC62S I I 1350
I 1404 HO 2 10MY1967 0.03811 1 (
19AP1967 C. 00220 I ( 1354 CH I __ 25AP196T C.CC173 1
Naviaula gotttandiaa Grun.
Navieula gottlandioa Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 8.
fig. 8. 1880.
NAGOTTLA TCT NO OF STATIONS 2
'7" 1565 GS13 50C1967 0.07C99 ) TT4C4 MB 2 10KY1967 0.01270 ) (
Navieula graailoides A. Mayer
Naviaula graailoides A, Mayer, Kryptog. Forsch., 1:203, pi. 7, fig. 60.
1919.
386 NAGRACIL TCT f.C CF STATIONS
15
(46763
1 1569
( 1544
( 1527
( 1350
EV
GS17
HU 1
TR 1
BH 2
23AU1937
50C1967
20C1967
20SE1967
19AP1967
0.02029 1
0.00149 )
0.00238 )
0.01258 )
0.00661 1
1343
1571
1546
1529
14C4
A 6
GS19
LU 1
KM 1
HO 2
19AP1967
60C1967
20C1967
20SE1967
10KY1967
C. 00069 )
C. 00059 )
0.00500 )
0.01199 )
C. 05081 1
( 1554
( 1574
I 1526
( 1549
( 14C7
CS 1
GS22
PO 1
fa i
SN 2
30C1967
60C1967
20SE1967
4CC1967
14HY1967
C.CC712 I
C. 12944 )
C.OC569 )
C. 01370 )
C.OC597 1
Naviaula gregaria Donk.
Navioula gregaria Donkin, Quart. J. Micr. Sci., New Ser., 1:10, pi. 1,
fig. 10. 1861.
387 NAGREGAR TCT KC CF STATIONS
1236
1368
1521
1531
1426
1418
1429
C1 1
A 3
SH 1
GH 1
MS 2
SH 2
WL 2
8JN1964
4MY1967
18SE1967
25SE1967
2SMY1967
22MY1567
29MY1967
0.00175
0.00314
0.02308
0.00845
0.06299
0.03110
0.01062
( 1264
( 1542
( 1522
( 1545
I 1427
( 1350
(
C1 1
E 3
BH 1
kL 1
LU 2
BH 2
10AU1964
110C1967
1BSE1967
20C1967
29HY1967
19AP1967
0.00193
C.00509
0.00365
0.13514
C. 01211
C. 11013
( 1345
( 1546
( 1527
( 1550
( 1417
( 1354
C i
LU 1
IK 1
FR 1
HO 2
GH 2
25AP1967
20C1961
2CSE1967
50C1967
22MY1961
25AP1967
C.CC19S
0.03001
C.C1258
C. 03717
C. 03365
O.GC345
Navioula grimmei Krasske
Naviaula grimmei Krasske, Abh. Ber. Ver. Naturk. Cassel, 56:45 pi. 1
fig. 14. 1925. '
120
-------
388 KAGRIPME TCT I»C OF STATICNS
TT567 GS15 50C1967 O.OC159 I
13 50 - B1L2 _ 19ftP19b7 0.0151,2 ) I 140* HC
Navieula hambergii Hust.
Navieula hambergU Hustedt in: Hamberg, Naturw. Untersuch. Sarekgebiet
Schwedisch-Lappland, Bd. 3, Bot., p. 562, Pl. 17, fig. 2. 1924.
Coll: ANSP 46763a.
Navieula hasta Pant.
Navieula hasta Pantocsek, Beitr. Kenntn. Foss. Bacill. Ungarns, Theil 3
p. 69, Beitr. 3, pi. 5, fig. 74. 1905. '
Coll: 1813.
Navieula heufleri Grun.
Navieula heufleri Grunow, Verb.. Zool.-Bot. Ges. Wien, 10:528, pi. 3,
figs. 32a-b. 1860.
JL&2 _ NAHEUfLE TCT I>C CF STATICKS 1 ____ .
I 1350 Bt- 2 _ 15AP1967 0.00661 1 I __ , _
Navieula heuflevi var. leptoeeplmla (Br£b.) Patr.
Navieula leptoeephala de Brebisson ex Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 7, fig. 16. 1880.
Navieula eineta var. leptoeephala (Br^b.) Van Heurck, Syn. Diat. Belgique,
p. 82. 1885.
Navieula heufleri var. leptoeephala (Breb.) Patrick in: Patrick and Reimer,
Acad. Nat. Sci. Philadelphia Monogr., 13:515, pi. 49, fig. 7. 1966.
-. 39C MAHEUFVL TOT NC CF STATICNS 2
—L.1522 BtLJ 16SE1967 0.00182 1 1 1417 HO 2 22HY1967 0.00374 I (
Navieula irribrieata Bock
Navieula imbrieata Bock, Nova Hedw., 5:228, pi. 3, figs. 150-160. 1963.
391 NtlMBRIC TCT NC CF STATIONS 1
27AP1S38 O.OC168 ) (
Navieula integva (Wm. Smith) Ralfs
Pirmulavia integva Wm. Smith, Syn. British Diat., Vol. 2, p. 96. 1856.
Navieula integra (Wm. Smith) Ralfs in: Pritchard, Hist. Infusoria, 4th
ed., p. 895. 1861.
393 NAINTEGR TOT KG CF STATICNS
0, 00350 I TT5*2 *~<> 19AP1S67 0.00361 ) I 15C4 A~3
36 ,
I 1^9 ES 7 40C1967 0.00350 I < 1522 BH 1 16SE1967 0.00182 1 ( 1417 HO 2 _ 22HY1967
I 1350 BH 2 19AP1967 0.033C4 ) (
Navieula jaemefeltii Hust.
Navieula jaernefeltii Hustedt, Arch. Hydrobiol., 39:111. 1942.
391 KAJAEPKE TCT NO Of STATICNS
I 1395 GS19 13MY1967 0.00117 I ( 1560 GS 8 40C1967 0.00472 I I 1565 «13 50C1967 t-OJ°28 J
Ljjfctj SSJJ 50C1967 0.00149 ) ( 1574 GS22 6QC1967 0.00288 I I 1575 GS28 60C19t7 0.00129 I
I 1551 ES 1 50C1967 0.00799 ) I
121
-------
Navioula laeustris Greg.
Navioula laoustris Gregory, Quart. J. Micr. Sci., 4:6, pi. 1, fig. 23.
1856.
396 NALACUST TOT KC OF STATIONS 16
( 3541
(46914
(46747
(46767
1 1526
( 1354
CH
CH
EV
EV
HO 1
GH Z
1FE1881 0.01956 I4SS14 CH 19AP1946 0.00107 1 (46920 CH 2°D£.l'*£ r'nMM
5JN1947 0.00152 (46907 CH JL1947 0.00049 1 (46764 EV 17JL1937 0.00804
1AU1937 0.00743 (4676S EV 7SE1937 0.02171 1 (46760 EV 22SE1937 J.OC492
270C1937 0.00387 ( 1258 F 1 6JL1964 0.00236 1 ( 1392 GS16 12MY1967 0.00308
20SE1967 0.00569 ( 1545 ML 1 2CC1967 C. 06081 > ( 1427 LU 2 29MY1967 C.01Z11
25AP1967 0.00173 (
489 NASPECCK TCT NO OF ST/ITICHS 1
( 1254 D 2 15JL1964 0.00192~>"
Navioula lanoeolata (Agardh) Kutz.
Frustulia lanoeolata Agardh, Flora, 10:626. 1827.
Navioula lanoeolata (Agardh) Ktltzing, Bacill., p. 94, pi. 28, fig. 38.
1844.
395 NALANCEO TCT ND OF STATIONS 67
60973 CH 1876 0.02362
46914 CH 19AP1946 0.00107
46906 CH MY1947 0.00199
46758 EV 5JN1937 0.00357
46757 EV 25JL1937 0.12999
46765 EV 30AU1937 0.01115
46750 EV 24SE1937 0.01414
46767 EV 270C1937 0.01160
46762 EV 18HR1938 0.04411
1305 F 2 110C1964 0.00173
1453 E 3 15JL1967 0.00253
1390 GS14 12MY1S67 0.00587
1394 GS1S 13MY1967 0.00172
1560 GS 8 40C1967 0.00472
1573 GS21 6CC1S67 0.00112
1544 HU 1 20C1967 O.OC238
1520 HO 1 18SE1967 0.00471
1527 TR 1 20SE1967 0.05031
1552 SM 1 60C1967 0.00660
1426 US' 2 29HY1967 0.02100
1350 BH Z 19AP1967 0.04405
1400 SB_Z.. 6KY1967 0.05361
1423 MA 2 25HY1967 0.00428
146921 CH 23N01945 C.0006S
(46920 CH 20DE1946 0.00031
(469C7 CH JL1S47 C. 00049
(46743 EV 20JN1937 0.00428
(46747 EV IAU1937 0.03218
(46752 EV 15SE1937 0.15237
(46744 EV 60C1937 0.02439
(46749 EV 12MR193B 0.01214
( 1232 E S 16HYI964 0.00174
( 1341 A 3 19AP1967 0.00108
1377 GS 1 9MY1967 0.00396
1391 GS15 12KY196? 0.00479
1555 GS 2 3GC1967 0.00353
i5«5 6S13 50C1967 0.01521
1574 GS2 6UC1967 O.OO288
1547 MS 2CC1967 0.00798
1521 SH 185E1967 0.00577
1529 KM 20SE1967 0.01199
1550 MR 5QC1967 C. 26019
1351 HI 2 21AP1967 C.00621
1401 HO 2 6MV1967 0.03526
14C4 HO 2 10MY1967 0.01270
)
1
1
1
(46915 CH 20FE1946 0.01138
(46905 CH JA1947 C. 00123
(46922 CH 21AU1947 C. 00048
(46764 EV 17JL1937 C.04029
(46763 EV 23AU1937 C. 18263
(46760 EV 22SE1937 C.OC492
(46748 EV 130C1937 0.04270
(46768 EV 16HR1M8 C.C4410
( 1285 f 1 1SSE1964 0.01165
( 1375 E 3 7KY1S67 C.OC24I
1389 CS13 12MV1967 C.CC256
1392 CS16 12HY1967 C.OC616
1558 GS 5 40C1967 C.CC396
1572 £520 tCC1967 C.CC090
1575 £52 £UC1967 C.OC129
1546 LU 2QC1967 C.lfOOS
1522 BH 18SE1967 C. 01641
1545 ML 20C1967 0.03379
1553 SG 60C1967 0.00734
1427 LU 2 29MV1967 0.01211
140* TR 2 6HY1967 C.09T47
1406 G8 2 13HY1961 C.C1078
Navi-outa lanoeolata var. ayrribula (Donk.) Cleve
Navioula. oyrnbula Donkin, Quart. J. Micr. Sci., 9:294, pi. 18, fig. 6. 1869.
NawLcula lanoeolata var. cyrribula (Donk.) Cleve, K. Svenska Vet.-Akad. Handl.,
Ny Foljd, 27(3):22. 1895.
39B ItALANCVC TGT NO OF ST4TICNS
( 1305
( 1404
F 2
HO 2
110C1964 0.00173 I ( 1565 C-S13
0.01270 1 (
50C1967 0.00507 ) I 1428 HI 2
29HY1967 C.OC301 )
Navioula latens Krasske
Navioula latens Krasske, Arch. Hydrobiol., 31:41. 1937.
KALATEKS TCT ND OF STATICNS 12
M6757
25.IU93J7 a.00481 ) t 1521 SH
16SE1967 0.00577 I ( 1526 KD 1 20SE1967 C.00569 )
( 1527
TR 1
Id 1
20SE1967
2CC1967
0.02516 )
0.13514 1
( 1528
i 1550
SB 1
HR !.._
20SE1967
5GC1961
0.01444 I
0.01239 )
1 1530
1 1402
FR 1
1R 1
24SE1961
6HY1S6?
0.01000 1
C.CC541 )
25AP1967 0.00345
CI 2
19AP1967
Navioula laterostrata Hust.
Navioula laterostrata Hustedt, Internat. Rev. Hydrobiol., 13:357, fig. 4.
1925.
Coll: 1404.
Navioula levanderi Hust.
Navioula levanderi Hustedt, Internat. Rev. Hydrobiol., 43:174.
1943.
400 NALEVAMD TOT NO CF STATIONS
(46757
25JL1937 0.00481 I (46763
23AU1937 C.04058 I (
122
-------
Navicula menisculus Schum.
Navicula menisculus Schumann, Schrift. K. Phys.-Okonom. Ges. Konigsberg,
8:56, pi. 2, fig. 33. 1867.
401 NAMEMSC TCT NO OF STATIONS"
I UA1.__A_3_
19AP1967 0.00108
110C1S64 C.C0173 J ( 1337 c 3
2MR1967 C.OC147 )
Navicula menisculus var. obtusa Hust.
Navicula menisculus var. obtusa Hustedt, Arch. Hydrobiol Suppl 15-271
pi. 20, figs. 12-14. 1938. VV '
402 NAfEMVC 1CT NO OF STATIONS
. _C46J_5_B
(46752
EV
EV
MU 1
5JN1937
15SE1937
20C1S67
O.OC357 )
0.06530 )
O.OC238 )
(46757
(46768
1 1545
EV
EV
hi 1
25JU937
16MR1938
2CC1967
0.00481 )
0.02940 1
0.00676 )
(46763
(46762
< 1350
EV
EV
6K 2
23AU1S37
18KR193E
19AP1961
C. 06088 )
C.C2206 )
C.CC220 )
Navicula menisculus var. upsaliensis Grun.
Navicula (menisculus Schum. var.?) upsaliensis Grunow in: Cleve and Grunow,
K. Svenska Vet.-Akad. Handl., Ny Foljd, 17(2):33. 1880.
Navicula menisculus var. upsaliensis Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 8, figs. 23-24. 1880.
4Q3_ IvAMEMVU TCI
OF STATIONS 40
(469CS
(46758
(46752
( 1388
( 1.3SLL
1 1397
( 1558
I 1571
( 1544
( 1526
t L52.9
I 1428
I 1354
( 1423
CH
EV
EV
GS12
GS15
GS21
GS 5
GS19
MU 1
MO 1
KM 1
MU 2
GH 2
MA 2
MR1947
5JN1937
15SE1937
12MY1967
12MY1S67
13MY1967
4CC1S67
60C1567
20C1967
20S61967
2CSE1967
.29MV1967
25AP1967
25MY1967
0.00455
O.CC357
0.06530
O.OC603
O.CC479
0.00065
C.OC396
C. 00059
O.OC477
0.01138
0.04797
C. 00904
0.00173
0.00428
(46912
(46771
[46767
1389
1392
1554
1565
1573
1546
1527
1545
1417
14C4
CH
EV
EV
GS13
GS16
GS 1
GS13
GS21
TR 1
ML 1
HO 2
MO 2
AP1947
11JN1937
270C1937
12KY1967
12KY1967
30C1967
5CC1967
60C1967
2CCIS67
20SE1967
20C1S67
22MY1967
10MY1967
C. 01150 )
0.00238 )
0.00774 1
0.002S8 )
0.00308 1
0.00356 1
C. 05578 I
0.00112 )
C. 05002 )
C.0691S )
C. 39192 )
0.01122 I
C. 01270 )
469 C 7
46763
46762
1390
1394
1557
1567
1574
1522
1528
1550
1350
1420
CH
EV
ev
GS14
GS18
CS 4
CS15
GS22
BH 1
SB 1
*R 1
BH 2
1H 2
JL1947
23AU1937
18KR1S38
12MY1967
13MY1S67
30C1S67
50C1961
60C1967
1ESE1967
20SE1961
50C1967
19AP1967
23MY1967
C. 00049
C. 04058
C. 02206
C.OC587
C.OC172
C.OC374
C.CC159
C.C1151
C.CC365
C.C2888
C.C1239
C. 02423
C. 01511 )
Navicula micvopupula Choln.
Navicula micvopupula Cholnoky, Bot.
Not., 110(3) :353, fig. 61-63. 1957.,
404 NAMICBOP TCT HC CF S1ATICNS
I 1258 F 1
6JL1S64 0.00236 )
20SE1967 0.01444 ) ( 1545 kL 1 2CC1S67 C.02027 )
Navicula minima Grun.
Navicula minima Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 14, fig,
15. 1880.
405 fiAPIMMA TCT NO OF STATIONS
(46909 CH
( 1711 r.<
HR1947
16CC1964
0.00455 )
0.00245 )
(46764
I 1341
EV
A 3
17JL1937
19AP1967
0.01612 )
0.00106 I
(46767
( 1345
EV
C 5
270C1937
25AP1967
C.OC774 I
C.OCI95 1
12MY1967 0.01207 I ( 1550 MR 1 50C1967 0.39648 ) I
Navicula minima var. okamurae Skv.
Navicula minima var. okamuvae Skvortzow, Phillipine J. Sci., 62:203, pi.
1, fig. 23. 1937.
40t KAMIWIVC TCT NC OF STATIONS 1
I 1550 FR 1 SOC1967 0.03717 I (
Navicula minuscula Grun.
Navicula minuscula Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 14,
fig. 3. 1880.
132. JSAJI
.JL_L2.M_
1 1550
HH.KU ILI
MR 1
11JN1964
50C1967
C
0
.00110 )
.01239 )
I 1565
1
GS13 50C1967 C. 02028 )
( 1527 TR I
20SE1967
C.C125B
1
123
-------
Navicula monoculata Bust.
Navicula monooulata Hustedt, Arch. Hydroblol., 40:921, pi. 41, fig. 4. 1945.
*07 NAMONOCU TOT IvC OF STATIONS 2
( 1571 CS1960C19670.00059 I ( 135C BH 219AP1S67o75o**TT (
Navicula muraliformis Hust.
Navicula muraliformLs Hustedt ex Brenderauhl, Arch. Mikrobiol., 14:440,
fig. 5. 1949.
408 NAMURALI ICT NO OF STATIONS 3
I 1268 E 2 15AU1964 0.00274 I I 1348 E 5 23AP1967 0.00137 I I 1451 C 7 UJL1S61 C.OC197 )
Navieula rmtiea Kutz.
Naviaula mutiea Kutzing, Bacill., p. 93, pi. 3, fig. 32. 1844.
Coll: 1734.
Navicula. mutica var. eohnii- (Hilse) Grun.
StauToneis oohnii Hilse, Jahres-Ber. Schlesische Ges. Vaterl. Kult.,
38:83. 1860.
Naviaula mutioa var. eohnii (Hilse) Grunow in: Van Heurck, Syn. Diat.
Belgique, pi. 10, fig. 17. 1880.
*09 NAHUTIVC TOT NO OF STATIONS 3
146916 CH 4MY1547 0.00068 I (46«22 CH 21AU1941 C.00017 ) 1 1241 E 2 13JN1S64 C.CC148 )
Naviaula mutioa var. tvopioa Hust.
Navicula mutica var. tvopica Hustedt, Arch. Hydrobiol., Suppl. 15:233,
pi. 17, fig. 6. 1937.
410 NAMUTIVT ICT NO OF STATIONS 4
146921CH23N019450.00065 I(44S22Cti21AU1947C.00097 I< 1342A~419AP1967C.CC180 )
I 1350 BH 2 19AP1967 O.OC22C I (
flavicula muticoides Hust.
Navicula muticoides Hustedt, Instit. Pares Nat. Congo Beige, Expl. Pare
Nat. Albert, Mission H. Damas (1935-1936), Fasc. 8, p. 82, pi. 4, figs.
33-36. 1949.
-4U IsAKUTlCO TOT NO CF STATIONS 1
5JN1937 C.CC357 ) I
Navicula muticopsis V. H.
Naviaula muticopsis Van Heurck, Exped. Antartic Beige, Bot., Diat p 12
pl. 2, fig. 181. 1909. ' *
412 MAMIITICC ICT NC Of STfTICNS 2
TH 1QMV194& 0.00071 > I 1542 £ 3 110C1S67 C.00509 ) I
124
-------
Navioula nyassens-is fo. minor 0. Mull.
Naviaula nyassensis fo. minor 0. Muller, Bot. Jahrb., 45:83, pi. 1 fig.
6. 1911.
I4J.75B
146747
146750
(46761
1 1417
EV
EV
EV
EV
HO 2
5JN1937
1AU1S37
24SE1937
27MY1938
22MY1967
0.04636
0.00248
0.01414
O.OC545
O.OC374
146764
146763
(46767
( 1545
1
EV
EV
EV
HI 1
17 JL 193 7
23AU193?
27CC1937
20C1967
0.12087 1
0.08117 I
0.00387 )
0.00676 I
(46757
(46752
(46762
( 1550
EV
EV
EV
MR 1
25JL193?
15SE1931
18MR1938
50C1967
C.C6530 )
0.02206 I
0.01239 )
Navioula oblonga (Kutz.) Kutz.
Frustulia oblonga Kutzing, Linnaea, 8:548, pi. 14, fig. 24. 1833.
Navioula oblonga (Kutz.) Kutzing, Bacill., p. 97, pi. 4, fig. 21. 1844.
TCT NC OF STATICHS
I 1569
GS17
O.CC976 I ( 153B
5CC1967 0.00149 t
E 5
23SE1967 0.00552 I ( 1388
6S12
_12HY1967 C.OC603 I
Navieula odiosa Wallace
odiosa Wallace, Not. Nat. Acad. Nat. Sci, Philadelphia, 331-5
pi. 2, fig. 4. 1960.
414 N4DCICSA TCT NO OF STATIONS
(46923
146753
I 1256
1 UfiS
1 1573
1 14(11
CH
EV
E 2
F 1
GS21
Hn 7
22N01946
15SE1937
14JL1964
15SE1S64
60C1967
6MY1967
O.OC219 I
0.04354 1
0.00183 )
0.02912 1
0.00224 1
0.00588 )
(46S19
146750
( 1268
( 1397
( 1514
( 1429
CH
EV
E 2
GS21
GS22
ML 2
5JIU947
24SE1937
15AU1964
13MY1967
60C19S7
25PY1967
0.00303
C. 00471
C. 00274
C. 00065
0.00575
C.01062
(467E7
(46759
( 1270
( 1557
I 1529
(
EV
EV
f 1
CS 4
KM 1
25JL1937
19MY1938
10AU1964
30C1967
20SE1967
C.CCS63 I
0.00338 1
C.GC272 )
C.CC374 )
C.C2398 1
Navioula oppugnata Hust.
Navioula oppugnata Hustedt, Arch. Hydrobiol., 40(4):925, pi. 42, fig. 1.
1945.
NtqPPlISC TCT NO flF STtTIDMS 2J_
(46916
(46758
(46764
(46750
14^74_9
146751
1388
1574
1545
1402
CH
EV
EV
EV
EV
GS12
GS22
ML 1
TR 2
4HY1947
5JN1937
17JL1937
23AU1937
24SE1937
12MR1938
30MR1938
10JN1964
12MY1967
60C1S67
20C1967
6*Y1967
0.00170
0,OC713_J
0.072S2
0.08117
0.01414
0.01214
0.02233
0.00153
0.01207
0.00288
0.03379
O.OC541
(46919
(46771
(46757
(46752
(46744
(46768
(46759
1278
1392
1546
1427
CH
EV
EV
EV
EV
EV
EV
C 6
GS16
LU I
LU 2
5JN1947
11JM937
25JL1937
15SE1937
60C1937
16MR1938
19HY1938
18SE1964
12KY1967
20C1967
29HY1967
0.01062
0.00475
0.02889
0.06530
0.00975
0.01470
0.00338
0.00384
0.003C"
0.00500
0.01211
(46922
(46743
(46747
(46760
J46767
(46762
(46766
I 1297
I 1394
< 1527
I 1401
CH
EV
EV
EV
EV
EV
EV
0 6
ES18
TR 1
CO 2
2UU1947
20JN1937
1AU1937
22SE1937
270C1937
18MR1936
14DE1938
140C1964
13HY1967
20SE1967
6HY1967
C.OC533
C. 01285
C.C5446
C.CC985
C. 00774
C. 06617
C. 01584
C.CC190
C. 00172
C.OC629
(46920 CH
200E1946 C.OC092 )
Navieula ordinaria Hust.
Navioula ordinaria Hustedt, Arch. Hydrobiol., 43:352, pi.
1950.
37, figs. 27-28.
83 ANSP6CGA TCT NC OF STATICNS
( 1285
15SE1964 0.00582 I ( 1565
C.01014 I (
Navioula paea Hohn and Hellerm.
flavicula paca Hohn and Hellerman, Trans. American Micr. Soc.
pi. 3, fig. 11. 1963.
82(3):307,
482 KASPECCB 1CT NO OF STATIONS
I 1268
E 2
15AU1964 0.00821 ) I
125
-------
Navicula paludosa Bust.
Bavicula paludosa Hustedt, Abh. Naturw. Ver. Bremen, 34:286. 1957.
( 1527
( 1350
EV
TR 1
8H 2
17JL1937
20SE1967
5CC1967
19AP1967
O.OC806 )
0.01687 >
0.12390 }
0.03524 1
( 1304
I 1530
( 1426
( 1354
F 1
FR 1
MS 2
GH 2
HOC 1964
24SE1967
29HY1967
25AP1967
C. 00247 )
C. 01000 I
C.C1050 )
0.00690 »
( 1546
« 1545
I 1427
I 14G4
LU 1
ML 1
LU 2
¥0 2
20C1967
20C1967
29KY1967
10MV1961
C.C1000 1
0.02421 1
C. 01270 )
Navicula. pelliculosa (Br£b.) Hilse
Synecba minutissima var. pelHculosa Kutzing, Sp. Alg., p. 40. 1849.
(=Frustulia pelliculosa de Br£bisson in litt.ti.Ae. Kutzing.J.
Navicula pelliculosa (BrSb.) Hilse, Abh. Schleische Ges. Vaterl. Kult.,
2(2):68. 1863.
Coll: 1712.
Navicula peratomus Hust.
Navicula pevatorms Hustedt, Abh. Naturw. Ver. Bremen, 34(3):277, fig. 26.
1957.
417 NAPERATC TOT HC Of STATIONS
< 1350
19AP1967 0.01101 )
Navicula perpusilla Grun.
Navicula perpusilla Grunow, Verh. Zool.-Bot. Wien, 10:552, pi. 4, fig. 7.
1860.
418 NAPERPUS TOT NO OF STATIONS
50C1967 0.01239 ) (
Navicula placentula (Ehr.) Kutz.
Pimularia placentula Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:421,
pi. 3(7), fig. 22. 1843.
Navicula plaeentula (Ehr.) Kutzing, Baclll., p. 94. 1844,
419 KAPLACF.N TCT NC CF STATIONS 13
146917
14*91 A
(46747
14675*
CH
CH
EV
EV
12JA1^46
4MV1947
1AU1937
27AP1938
0.00055 )
0.00034 1
0.00248 I
O.OC168 1
(46514
(46770
(46763
(46761
CH
EV
EV
EV
19AP1946
9JL1937
23AU1937
27MV1938
0.00107 )
0.01193 )
C.02C29 >
0.00273 )
(469C5
(46757
(46752
< 1275
Ch
EV
EV
0 2
JA1947
2SJL1937
15SE1927
17SElg6A_
C.CC123 )
O.OC963 )
C. 02177 )
C.GC645 )
Navicula placentula var. rostrata A. Mayer
Navicula plaoentula var. rostrata A. Mayer, Kryptog. Forsch., 3:125, pi. 3,
figs. 27a-b. 1918.
42CNAPLACVR TCT NO OF STATIONS20
1 46924
146758
(46764
I467AH
( 1554
1 1S?7
( 1422
CH
EV
EV
EV
GS 1
TR 1
GA 2
10MY1946
5JN1937
17JL1937
16HR1938
30C1967
20SE1967
23MY1967
O.OCC71
0.00357
0.01612
O.C1470
0.00356
0.00629
0.00511
146919
(46771
46757
1236
1565
1401
1423
CH
EV
EV
C- 1
GS13
MO 2
MA 2
5JM947
11JN1937
25JL1937
8JN1964
50C1967
6MY1967
25KY1967
0.00152
0.00238
0.00481
0.00175
0.00507
0.00588
0.00428
(46922
(46743
(46752
( 1396
( 1520
( 1419
(
CH
EV
EV
GS20
HO 1
8U 2
21AU1947
20JN1937
15SE1931
13MY1967
1CSE1967
23MV1967
C.OC194
C.OC856
C.C4354
C. 00074
C.OC471
C. 01831
Navicula platycephala 0. Mull.
Navicula platycephala 0. Muller, Bot. Jahrb., 45:84, pi. 1, fig. 12. 19H.
Coll: 1574.
126
-------
Navieula platystoma var. pantoesekii Wisl. and Kolbe
Navieula platystoma var. pantoosekii Wislouch and Kolbe, Trav. Exped
Sci. Olenetz, Part 5, Livr. 1, p. 73, fig. 10. 1927.
421 NAPLATVP TCT NO OF STATIONS
30
1 3541
_<469Z4
(46906
J 46771
146747
146760
146748
1 1279
I 1546
1 1545
CH
CH
CH
EV
EV
EV
EV
E 1
LU 1
ML 1
1FE1881
IOMY1946
KY1947
11JN1937
1AU1937
22SEI937
130C1937
16SE1964
2CC1S6Y
2CC1967
O.OCS78 )
0.00141 1
C. 00066 I
0.00238 )
0.01980 I
O.OC985 1
0.02135 I
0.00393 )
0.00500 )
0.00676 1
146921
(46920
(46922
(46764
(46763
(46750
(46768
( 1394
( 1526
( 1550
CH
CH
CH
tv
EV
EV
EV
GS18
MQ 1
MR 1
23M01945
20DE1946
21AU1947
17JL1937
23AU1937
24SE1937
16MR1936
13MY1967
20SE1967
50C1967
C. 00129
0.00123
0.00291
0.03223
C. 06088
0.00943
0.01470
0.00172
(46914
(46905
(46758
(46757
(46752
(46744
(46762
( 1567
0.00569 ) ( 1527
0.01239 I ( 1429
CH
EV
EV
EV
EV
EV
GS15
TR 1
ML 2
19AP1946
5JN1937
15SE1937
18HR1938
SOC1967
20SE1967
29JY1967
C.OC107
C.OC357
C.C2177
C.C4411
C.C1258
C. 01062
Navieula potsgeri Reim.
Navieula potzgevi Reimer, Proc. Indiana Acad. Sci., 71:315, pi. 1, fig.
5. 1962.
Coll: 1808.
Navieula ppotvacta Grun.
Navieula (erueieula var.?,) protraeta Grunow in: Cleve and Grunow, K.
Svenska Vet.-Akad. Hand!., Ny Foljd, 17(2):35, pi. 2, fig. 38. 1880.
422 HAPRDTRA TCT IVC CF STATIONS
146924
CH
10HY1946 0.00071 1 (46S2Z
_CK_
21AU1947 C.00145 > (46749
12MR1938 O.C1214 1
( 1546 LU 1
1 1350 6H 2
20C1967
19AP1967
0.01000 )
0.00661 )
( 1521 SH 1
( 14C5 ES 2
18SE1967
12HY1967
0.00577 I
0.00645 I
I 1550
50C1967 C.02476 1
Navieula protraeta fo. subcapitata (Wisl. and Por.) Hustedt
Navieula lundstromii var. subeapitata Wislouch and Poretzky, Trav. Soc.
Natural. Leningrad, 47-53:139, fig. 2. 1924.
Navieula pvotraeta var. subeapitata (Wisl. and Por.) Hustedt in: Raben-
horst, Kryptog.-Fl. Deutschlands, 7(3)2:316, fig. 1434. 1962.
423 M1PRDTFS TDT NC OF STATICKS
5CC1967 0.01521 )
Navieula protraeta var. elliptiea Gallik
Navieula ppotraeta var. elliptiea Gallik, Pannonhalmi Szmle, 10:65, fig.
7. 1935.
4?4 k
J 4.6 91 7
(46757
146744
( 1520
( 1350
APRPTVE TOT
EV
EV
HO I
BH 2
ND OF STATIONS
12JA1946 0
25JL1937 0
60C1937 0
18SE1967 0
75MY19A7 0
19AP1967 0
24
.00028
.01926
. 19591
.01463
.00193_J
.00471
.01050
.00220
(46771
(46747
(46760
[46748
( L563
I 1527
( 1427
( 1402
EV
EV
EV
EV
GS11
TR 1
LU 2
TR 2
11JN1937
IAU1937
22SE1937
130C1937
50C1967
20SE1967
29HY1967
6WY1967
C.CC238
Q.C0990
0.00985
0.06405
0.00234
0. 03145
0.01211
0.00541
(46764
(46763
(46750
(46761
( 1546
( 1545
( 1417
( 1423
EV
EV
EV
EV
LU 1
hL I
HO 2
MA 2
17J1.1937
23AU1937
24SE1937
27MY1938
20C1967
2CC1967
22HY1967
25MY1967
C. 03223 I
C. 02029
O.CC943
C.CC273
C.C1000
C. 04054
C.00374 )
C. 00428 )
Navieula pseudoelementis Hust.
Navieula pseudoelementis Hustedt, Bot. Not., 1952(4):400, fig. 107. 1952.
Coll: ANSP 46920a.
Navieula pseudoseutiformis Hust.
ii
Navieula pseudoseutiformis Hustedt in: Pascher, Sussw.-Fl. Mitteleuropas,
Heft 10, Aufl. 2, p. 291, fig. 495. 1930,
127
-------
425 NAPSCUTI TCT NO OF STATIONS
1 1346
I 1390
( 1556
1 1404
C 7
GS14
GS 3
MQ 2
21AP1967
12MY1S67
3CC1967
10MY1967
0.00134 I
0.00587 (_
0.00521 )
0.01270 1
( 1541
( 1396
( 1550
1
E 2
GS20
MR 1
110C1967
13MV1967
50C1967
0.00532 )
C. 00074 1
0.04956 I
I 1368
( 1555
1 1354
GS12
GS 2
GH 2
12MY1967
30C1967
25AP1967
C.CC603 )
C. 00706 )
C.CC173 )
Navicula pseudoventralis Hust.
Navicula pseudoventralis Hustedt in: A. Schmidt, Atlas Diat., pi. 401,
figs. 116-118. 1934.
AZ6 NAPVENTR TCT NC CF STATIONS 1
I 135Q 6H 2 1SAP1967 0.00220 I [
Navicula pupula Kutz.
Navicula pupula Kutzing, Bacill., p.
417 NtPIIPllLA TCT NC GF STATIONS 56
93, pi. 30, fig. 40. 1844.
(An«73 CH ISlt 0-07363
146909 CH MR 1947 0.00455
(46922 CH 21AU1947 0.00097
(46745 EV 3JL1937 0.02090
146757 EV 25JL1937 0.03370
(46752 EV 15SE1937 0.08707
(46768 EV 16HR193B 0.01470
(46759 EV 19MY1938 O.OC338
( 1285 f 1 15SE1964 0.00582
( 1388 GS12 12HY1567 0.00603
( 1566 GS14 50C1967 0.00163
( 1547 MS 1 20C1967 0.01597
I 1521 SH 1 18SE1967 0.00577
( 1527 TR 1 20SE1967 0.03774
( 1550 MR 1 50C1967 0.09912
( 1427 LU 2 29MY1967 0.01211
( 1400 SB 2 6MY1967 0.00596
( 1429 ML 2 29NY1967 0.01062
< 1407 SH 2 14MY1967 0.00597
46923 CH 22NQ134A 0.00656
46SC6 CH NY1947 C. 00398
146758 EV 5JN1937 0.03209
46770 EV 9JL1937 0.01193
46747 EV KU1937 0.00743
4(750 EV 24SE1937 C.018e5
46762 EV 18MR1S38 0.08822
1246 F 3 1UN1964 0.00598
1298 E 1 120C1964 0.00269
1389 GS13 12MY1967 0.00258
1568 GS16 50C1967 0.00144
1546 LU 1 20C1967 C. 01000
1522 8H 1 18SE1967 0.00729
1529 Kk 1 20SE1967 0.01199
1553 SG 1 6DC1967 0.00734
1417 HO 2 22MY1967 0.00374
1352 KK 2 21AP1967 0.00859
1404 MB 2 10MY1967 C.C5C81
1422 GA 2 23NY1967 0.00511
46905 CH JA1941 C.CC245 »
46907 CH JL1941 0.00049
(46743 EV 20JN1931 C.C12B5
46764 £V I7J(.I937 C. 22562
46763 EV 23AU1931 C. 16234
46767 EV 270C1931 C.OC774
46756 EV 27AP1938 C.OC168
1279 E 1 16SE1364 C.CC393
1387 GS11 12HY1967 C.OC396
1565 0513 5CC1961 C.C7606
1574 GS22 60C1967 C. 01726
1520 HO 1 185E1S67 C.OC471
1526 fO 1 2CSE1967 0.00569
1545 kL 1 20C1967 C.C0676
1426 KS 2 29MY1967 0.01050
1350 BH 2 19AP1961 C. 05506
1354 GH 2 25AP1961 C.CC173 )
1405 ES 2 12KV1967 C. 01935 )
Naviaula pupula var. aquaeduotae (Krasske) Huat.
Naviaula aquaeduotae Krasske, Bot. Arch., 3:197, fig. 4. 1923.
Navicula pupula var. aquaeduotae (Krasske) Hustedt in: Pascher, Slissw.-Fl.
Mitteleuropas, Heft 10, Aufl. 2, p. 282. 1930.
432 NAPUPUVA TDT ND DF STATIONS 1
I l-iSO. MR 1 50C1967 0.01239 >
Navicula pupula var. capitata Skv. and Meyer
Navicula pupula var. capitata Skvortzow and Meyer, Proc. Sungaree River
Biol. Sta., 1(5):15, pi. 1, fig. 40. 1928.
4?fl NAPUPUFC ICT ND Of STiTIGMS 7
(46758 EV 5JN1937 0.00357 I (46763 EV
23AU1937 C.C4058 ) (46752
15SE1937 C.02177 )
(46760 EV
( 1350 BH 2
22SE1937 O.OC492 ) ( 1565
19AP1967 O.OC441 1 (
GS13
50C1967 0.00507 ) I 1417
HO 2
22HY1967 C.00374 )
Navicula pupula var. elliptica Hust.
Navicula pupula var. elliptica Hustedt, Abh. Naturw. Ver. Bremen, 20:291
pi. 3, fig. 40. 1911. '
NAPUPUFE TCT
CF STAT1CNS
(46915
CH
2CF61946 0.00569 1 (4J764
_EV_
17J11937 0.00606 I (
Navicula pupula var. rectangularis (Greg.) Grun.
Stauroneis rectangularis Gregory, Quart, J. Micr. Sci., 2:99, pi. 4,
fig. 17. 1854.
Navicula pupula var. reatangularis (Greg.) Grunow in: Cleve and Grunow,
K. Svenska Vet.-Akad. Handl., Ny Foljd, 17(2):45. 1880.
128
-------
411 MAPilfUFR TCT hn OP STtTtna-j 3
(46764, EY 17JL1937 0.00806 I
( 156;
GS13
50C1967 0.00507 I I 1423
Navieula pupula var. rostrata Hust.
Navieula pupula var. rostrata Hustedt, Abh. Naturw. Ver. Bremen 20-211
pi. 3, fig. 39. 1911.
.lAflTn
(46922
1 1388
I 1550
1 1421
rw
CH
GS12
MR 1
CH 2
1S7A
21AU1947
12MY1967
50C1967
23MY1967
(1-07™?
0.00145
0.00603
0.01239
0.01735
1 (44S74
146747
1 1526
( 1350
1
r.H
EV
MO i
BH 2
IflMVIOtf.
1AU1937
20SE1967
19AP1947
o.nnn7i
0.00743
0.00549
0.00220
(46750
1 1551
I 1407
EV
ES 1
SH 2
24SE1937
14MV1967
C.CC471 I
C. 00597 }
Navieula pygmaea Kutz.
Navieula pygmaea Kilt zing, Sp. Alg., p. 77,
1849.
NAPYGKAE TCT NCI nf STATIONS 3
I 1264 C' 1 10AU1964 0.00193 1 « 1565 GS13 50C1967 0.00507 I ( 1522 BH 1 18SE1961 C.00182 I
Navieula quadripartita Hust.
Navieula quadvipartita Hustedt, Arch. Hydrobiol., Suppl. 15:263 pi 18
figs. 35-37. 1937.
-434—NAOPARTI TOT NC GF STATIONS 1
HL 1
2CC1^67 O.OC676 I
It
Navieula radiosa Kutz.
Navieula radiosa Kiitzing, Bacill.,
437 NABAD10S TOT NO OF STATIONS 101
p. 91, pi. 4, fig. 23. 1844.
(60973 CH 1C76 0.02362
( 3507 CH 19FE1B81 0.04528
146917 CH 12JA1946 0.00527
(46924 CH 10HY1946 0.00423
146905 CH JA1947 0. 0(1123
(46916 CH 4HV1947 0.02409
(46907 CH Jl 1947 0.117B5
(46771 EV 11JN1937 0.00475
146764 FU 17JL1937 0.20951
(46763 EV 23AU1937 0.04058
<&A76« EV nnr.l<537 0.02135
(46762 EV 18HR1938 0.06617
(46759 EV 19HY1938 0.00338
1240 D 6 10JN1964 0.00153
1244 F 1 11JN1964 0.00768
1258 F 1 6JL1964 0.00708
1 1268 E 2 15HU1964 0.00547
1286 F 2 15SE1964 0.01095
1505 F 7 11DC1964 0.00345
1345 C 5 25AP1967 0.00195
1«2 GS 6 1DMY1967 0.01665
1385 CS 9 10MY1967 0.00706
n«« GS12 12MY1967 0.23529
1391 GS15 12MY1967 0.19633
1394 GS18 13MY1967 0.11009
1398 CS22 14MY1967 0.00607
15A4 GS12 5DC1967 0.00165
1567 6S15 5QC1967 0.08891
1570 GS18 5QC1967 0.21817
1574 6S22 60C1967 0.0143S
1549 MO 1 40C1967 0.01370
1550 MR 1 5OC1967 0.02478
14p? TO ? 6MY1967 0.00541
1405 ES 2 12MY1S67 C. 01935
( 3540 CH 11HY187
(46910 CH OC194
(46915 CH 20FE194
(46523 CH 22N0194
(46S09 CH MR194
(469C6 CH MY194
(46922 CH 21AU194
(46743 EV 20JM93
(46757 EV 25JL193
(46752 EV 15SE193
(46767 EV 270C193
(46751 EV 30MR193
(46766 EV 14DE193
1241 E 2 13JN196
1245 F 2 11JN196
1259 F 2 6JL196
1279 E 1 16SE196
1290 C' 1 160C196
1306 F 3 110C196
1379 GS 3 9MY196
1383 GS 7 10MY196
1386 GS10 12MY196
1389 GS13 12HY1S6
1392 GS16 12MV196
1395 GS19 13MY196
1558 GS 5 40C196
1565 GS13 SOC196
1568 GS16 50C196
1571 GS19 60C196
1575 GS28 60C196
1551 ES 1 50C196
1426 MS 2 29MV196
1407 SM 2 14HY196"
9 0.06523
5 0.00218
6 0.01707
6 0.03716
7 0.02277
1 0.01858
^ 0.04507
7 0.02141
1 0.12999
7 0.02177
7 0.00774
8 0.01117
8 0.01584
4 0.00148
4 0.02766
4 0.00310
4 0.01178
4 0.00379
4 0.00832
7 0.00928
7 0.00267
7 0.00287
7 0.03868
7 0.01541
7 0.00352
7 0.00793
7 0.01521
7 0.00289
7 0.00117
7 0.00387
7 0.00799
7 C.010SO
t 0.09154 J
f 0.00597
( 3S41 CH 1FE1861 C. 23476 J
(46921 CH 23N01945 C.CC517
(46914 CH 19AP1946 0.00427
(46920 CH 200E1946 C.C1109
(46912 CH AP1947 0.04599
(46919 CH 5JN1947 C. 10925
(46758 EV 5JN1937 C.C1783
(46770 EV 9JL1937 C.C1193
(46747 EV 4AU1937 C. 08664
(46744 EV 6GC1937 C. 00488
(46768 EV 16KR1938 C. 01470
(46772 EV 18AP1938 C. 00710
1232 E 5.. 16MY1964 C. 00348
1243 E 6 13JN1964 O.OC62A
1246 F 3 11JN1964 C. 03586
1260 F 3 6JL1964 0.00573
1285 F 1 15SE1964 C. 03494
1304 F 1 HOC 1964 C.OC494
1341 A 3 19AP1967 C. 00108
1380 GS 4 9MY1967 C.OC504
1384 - GS 8 1CKV1967 0.00739
1387 OSll 12HY1967 C.02376
1390 GS14 12MY1967 C. 24642
1393 SS17 13MV1967 0.06575
1396 GS2C 13MY1967 C.00148
1563 GS11 50C1967 C. 00701
1566 GS14 50C1967 0.01101
1569 GS17 5GC196? t. 13081
1572 GS20 60C1967 0.00090
1522 BH 1 18SE1967 0.00182
1552 SM 1 60C1967 C.OC660
1350 BH 2 19AP1967 C. 00881
14M n , 10HY1967 C.4415a_L
Nawioula Tadiosa var. parva Wallace
Nav-ieula radiosa var. parva Wallace, Not. Nat. Acad. Nat. Sci. Philadel-
phia, 331:3, pi. 1, fig. 5. 1960.
438 NARADIVP TOT NO OF STATIONS
(46922CH
21AU1947 0.00048 ) I 1285 F 1
15SE1964 0.01165 I (
129
-------
Navioula radiosa var. tenella (Breib.) Grun.
Navioula tenella de Brtibisson ex Kutzing, Sp. Alg., p. 74. 1849.
Navicula radiosa var. tenella (Br£b.) Grunow in: Van Heurck, Syn. Diat.
Belgique, p. 84. 1885.
439 NARADIVT TOT NO OF STATIONS 57
(46915 CH 20FE1946 0.00569
(4676'i EV 17JL1937 0.04029
(46766 EV 140E1938 0.01584
1240 0 6 10JN1964 0.00153
1256 E 2 14JL1964 0.00183
1270 F 1 10AU1964 0.01634
1285 F 1 15SE1964 0.52996
1320 E 4 7NQ1964 0.00207
1452 E 2 14JL1967 0.00852
1542 .E 3 110C1961 0.00509
1389 CS13 12MY1967 0.00258
1395 GS19 13MY1967 0.00117
1557 GS 4 30C1967 0.01121
1574 GS22 60C1967 O.OC863
1522 BH 1 18SE1967 0.00182
1552 SM 1 60C1967 0.00660
(46920 CH 200E1S46 C. 00031
46757 EV 25J11937 0.01926
1428 HU 2 29MY1967 0.00301 )
14(12 TR 7 6HY1967 0.00541 )
1403 CA 2 10MY1967 0.23539 )
1229 D 5 14NV1964 0.00211
1243 E 6 13JN1964 0.00209
1258 F 1 6JL1964 0.00944
1275 0 2 17SE1964 0.00645
1286 F 2 15SE1964 C. 01095
1340 C 7 28MU967 C. 00073
1536 E 2 24SE1967 0.00545
1387 GS11 12CY1967 0.00396
1390 GS14 12MY1967 0.00587
1554 GS 1 30C1967 0.00712
1558 GS 5 40CIS67 0.00793
1!44 Mil 1 2CC1967 0.00477
1530 FR 1 24SE1967 0.12001
1550 HR 1 50C1967 0.04956
1426 MS 2 29MY1967 0.02100
11"S2 Ky 7 21AP1967 0.00859
1404 MO 2 10MY1967 0.08892
146919 CH SJN1947 C.CC303
(46763 EV 23AU1937 C. 04058
1231
1244
1268
1279
1304
1341
1541
1388 G
E 3 16MY1964 O.OC245
1 11JN1964 0.00439
2 15AU1964 C.C1094
1 16SE1964 0.01178
1 11CC1964 C. 0(5494
3 19AP1967 C.OC325
2 11CC1967 C. 01064
S12 12NY1967 C.OC603
1394 GS18 13HY1967 C. 00344
1555 GS 2 3CC1967 C. 00706
1560 GS 8 40C1967 C.CC945
1547 fS 1 20CJ967 C.CC798
1549 KO 1 40C1967 C. 01370
1553 SG 1 60C1967 C.C1469
1350 BH 2 19AP1967 C. 06368
1354 GH 2 25AP1967 C. 00345
1405 ES 2 12MY1967 C.C1290
Navieula reinhardtii (Grun.) Grun.
Stauroneis reinhardtii Grunow, Verb. Zool.-Bot. Ges. Wien, 10:566, pi. 6,
fig. 19. 1860.
Naviaula reinhardtii (Grun.) Grunow in: Cleve and Grunow, K. Svenska Vet.-
Akad. Handl., Ny FBljd, 17(2):32. 1880.
440 NAREINHA TCT NO OF STATIONS
(60973 CH 1876 0.04724
146910 CH OC1945 0.00109
(46924 CH 10NY1946 0.00071
(46906 CH MY1947 C. 00066
(46758 EV 5JN1937 0.00713
I4A744 FV 6nci<337 0.00488
(46749 EV 12MR1938 0.01214
1216 r.' 1 8JN1964 0.00175
1285 F 1 15SE1964 0.00582
1«1 GS15 12MY1967 0.00479
1574 GS22 60C1967 0.00575
1545 WL 1 20C1967 0.00676
( 1354 GH 2 25AP1967 0.00345
1 1405 ES 2 12 MY 196 7 0.00645
3540 CF 11HY1879 0.00932
46521 CH 23N01945 C. 00129
46520 CH 20DE1946 0,00246
46907 CH JL1947 0.00148
(46752 EV 15SE1937 0.06530
46748 EV 13CC1937 0.02135
(46751 EV 30HR193E 0.01117
1245 F 2 11JN1964 0.00346
1541 E 2 11CC1967 0.00532
1396 GS20 13HY1967 0.00148
1575 GS28 60C1967 0.00387
1550 MR 1 50C1967 0.01239
1429 UL 2 29HV1967 C. 01062
1407 SP 2 14MY1967 0.00597
3541 CH 1FEU81 C.CC978
46917 CH 12JA1946 C.OCC55
46916 CH 4NY1947 C. 00034
46922 CH 21AU1941 C.OCC97
46750 EV 24SE1937 C.OC943
46767 EV 270C1937 C.OC774
46761 EV 27HY193E C.CC273
1258 F 1 6JL1964 0.00236
1387 GS11 12MY1967 C.CC396
1398 GS22 14HY1967 C. 00304
1544 *U 1 20C1967 C.OC238
1426 PS 2 29MY1967 C.C2100
1404 KO 2 10HY1967 C.C127C
Navioula reirihardtii var. elliptica Herib.
Navieula reinhardtii var. elliptica Helribaud, Diat. Foss. Auvergne, Vol. 2,
p. 8. 1903.
MABPTNUg TCT KD CF ST0TICKS
(46905
( 1528
1..H54
r.H
JA1947 0.00245 I [46919
CH
5JN1947 0.00152 1 I 1544
HI 1
20C1967 C.OC238 >
20SE1967
25AP1967
0.01444 )
0.00516 I
( 1428
29NY1967 0.00301 ) I 1427
29MY1967 0.03632 )
Navieula rhynehoaephala Kutz.
Navioula Thynohooephala Kutzing, Bacill., p. 152, pi. 30, fig. 35. 1844.
4*2 NAI1HYBCH TCT NC OF STATIONS
CH
-2JFE1946 0.00569 I (46920
200E1946 0.00031 I 146916 CH
4HY194T C.CCM4 t
(46764
«4676B
EV
-fJL
17JL1937
16HR1938
0.00806 I
O.C1470 I
146757
<
EV
25JL1937 0.00481 I (46763
EV
23AU1937 0.02029 I
Navioula rotunda Hust.
Navieula rotunda Hustedt, Arch. Hydrobiol., 40:916, pi. 41, fig. 29. 1945.
443 NAROTUND TOT NO OF STATIONS 10
I 1565
GS13
50C1967 0.04563 1 ( 1575
GS28
60C1967 0.00129 > ( 1546
20C1967 C.01000 1
( 1525
( 1549
( 1402
PM 1
HO 1
20SE1967
40C1S67
0.01393 )
0.01370
6MY1967 0.00541 )
I 1526 MO 1
_L_155fl MR 1
20SE1967
_ 50C1967
0.00569 1
C.0123* »
< 1527
I 1350
TR
BH
20SE1967
19AP1967
C.01887 )
C.CC661 I
130
-------
Naviaula salinconm Grun.
Navioula salimmm Grunow ini Cleve and Grunow, K. Svenska Vet -Akad
Handl., Ny F&Ljd, 17(2):33, pi. 2, fig. 34. 1880.
444 NASAUNA TCT NO Of STATICNS 1
(46916 CH
4MY1947 C.QC034 )
Navieula sohoenfeldii Hust.
' suss-Fi-
455 NASCHONC TOT NO OF STATIONS
( 1550
50C1967 0.01239 )
NaviouTa soutelloides Win. Smith
Naviaula scutelloides Wm. Smith ex Gregory, Quart. J. Micr. Sci., 4:4,
pi. 1, fig. 15. 1856.
445 NASCUTEL TDT NO OF STATIONS
160973 CH 1876 0.02362
146747 EV 1AU1937 O.OC248
1274 D 1 17SE1964 0.00469
1320 E 4 7N01964 O.OC207
1382 CS 6 10MY1967 0.00276
1554 GS 1 30C1967 0.00712
1557 GS 4 30C1967 O.OC374
1567 GS15 5OC1967 0.00794
1572 GS20 60C1967 0.00721
1575 GS2B 60C1967 0.00387
1530 FR 1 24SE1967 0.03000
1426 US 2 2SNY1967 0.01050
1354 GH 2 25AP1967 0.00172
3540 CH UMY1879 0.00466
1245 F 2 11JN1964 0.00346
1279 E 1 I6SE1964 0.01571
1541 E 2 1 ICC 1967 0.00532
1395 6S19 13HY1967 0.00117
1555 OS 2 30C1967 0.00706
1553 GS 5 4CC1967 0.00396
1569 GS17 50C1967 0.00149
1573 GS21 60C1967 0.00448
1546 LU 1 20C1967 0,00500
1550 MR 1 50C1967 C. 11151
1427 LU 2 29MV1967 0.08475
14C4 MQ 2 1CKV1967 0.03811
46920 CH 20DE1946 C.CCC31
1267 D 6 18AU1964 C. 00216
1304 F 1 UOC1964 C.00247
1542 E 3 110C1967 C.C1C17
1396 GS20 L3HVH67 C.OC222
1556 GS 3 30C1967 C. 00521
1565 GS13 5QC1967 1.29804
1571 CS19 6DC1967 C.OCC59
1574 GS22 SCO 19 6 7 C.C1438
1520 1-0 1 1BSE1967 C. 00471
1553 SG 1 6CC1967 O.C2938
1350 EH 2 19AP196? C. 00881
Navieula semenoides Hust.
Navieula. semenoides Hustedt, Arch. Hydrobiol., 18:163, pi. 5, fig. 8. 1927.
373 MADECUSC TCT NO OF STATIONS
< 1279
I 1368
E 1
GS12
0.00393 1
0.01810 I
( 1319
( 1565
7N01S64
50C1967
C.C0262 )
0.29916 )
( 1343 A 6
I 1573 CS21
19AP1967
60C1967
C.OCC69 I
C.OC112 1
Nctvieula seminulo-id.es Hust.
Nawieuta seminulaides Hustedt 'in: A. Schmidt, Atlas Diat., pi. 401,
figs. 68-71. 1936.
448 NASEPINQ TCT NO OF STATIONS
I 1286
I 1567
F 2
1SSE1964
50C1967
0.01095 I
0.00318 I
( 1325
I 1?21
F 3
SH 1
6N01964
16SE1967
0.00252 )
0.00577 I
( 1348
_J
£ 5
23AP1967 C.OC137 )
serrtinulwm Grun.
seminulim Grunow, Verh. Zool.-Bot,
fig. 3. 1860.
Ges. Wien, 10:552, pi. 4,
446 NASE»INU TCT NO OF STATIONS 26
I4692C CH
f 1779 E
( 1348 E
I 1546 LU
I 1529 KH
1 1350 BH
20DE1946 0.00031
1 16SE1964 0.01178
5 23AP1967 0.00137
1 q 5CC1967 0.00476
1 20C1967 0.01501
1 1SSE1967 0.00923
1 20SE1967 0.01199
1 60C1967 0.00660
2 19AP1967 0.07048
46909 CH MR1947 0.00455
1285 F 1 15SE1964 C. 00582
1565 GS13 50C1967 6.51840
L1569 GS17 50C1967 0.00149
1521 SH 1 18SE1967 0.00577
1526 HO 1 20SE1967 0.00569
1545 HI 1 2CC1967 0.00676
1550 MR 1 50C1967 C.49560
1354 GH 2 25AP1967 0.00173
1278 D 6 1GSE1964 C. 00284
pis E 2 7N01964 C.CC190
1566 C-S14 50C1967 C. 00183
1574 CS22 60C1967 0.01438
1522 BH 1 1SSE1967 C.OC547
1527 TR 1 20SE1967 C.C3774
1551 ES 1 50C1967 C.OC799
1 1553 S« 1 6DC1S67 C. 02203
131
-------
Navieula seminulum var. intermedia Hust.
Navieula seminulum var. intermedia Hustedt, Arch. Hydrobiol., 39:110,
figs. 25-28. 1942.
447 NASEMIVI TOT NO OF STATIONS 1
I 1264 C* 1 10AU1964 0.00193 I (
Navieula similis Krasske
Navieula similis Krasske, Bot. Arch., 27:254, fig. 15. 1929.
450 NASIHL1 ICT NC OF STATIONS 3
< .3KB ES12 12MY1967 C.OC6C3 i I 1565 CS13 5CC1967 fl.01521 ) < 1350 BH_2 19AP1S67 C
Navieula simplex Krasske
Navieula simplex Krasske, Abh. Ber. Ver. Naturk. Cassel, 56:112, pi. 1,
fig. 16. 1925.
459 NASIPPIE TCT KC CF STATIONS 1
t 13 SO BH 2 19AP1967 0.0022C ) L
Naviaula. skabitsehewskyi Kiselev
Navieula skabitsakewskyi Kiselev (original description not available, cited
in Zabelina et al, Gpred, Presn0 Vod. USSR, p. 279. 1951).
ICT NO OF STATIONS
1 1349 CI 2 _ I9AP1S6T 0.00359 1 I
Navieula stroeseik. Cleve
Stawoneis dilatata Wm. Smith sensu StrBse, Festschr. XXXVII Versamml.
Deutsch. Philog. Schulm. Dessau, p, 11, pi. 1, fig. 28. 1884. (non
Wm. Smith 1853).
Navieula tuscula var. strbsei 0strup, Danske Diat., p. 84, pi. 1, fig.
28. 1910.
Navieula stvBsei A. Cleve, Acta Forest. Fennica, 22(4) :63. 1922.
Navieula pseudotuseula Hustedt, Internat. Rev. Hydrobiol., 43:170. 1943.
mSTROES TCT HE CF STATIONS
EU _ SJN1937 0.01^26 1 t*<:16<> EV _ 17JU937 _ C. 04029 I _ U6757 _ £S _ Z5JL1S37 6.0C963 )
I 1382 GS 6 10MV1967 0.00278 I I 1388 GS12 12MV1967 0.01207 ) ( 1391 CS15 12HY1967 0.00*79 )
I IS&Ji GS13 _ 50C1967 0.00507 i 1 15J9 _ 6S17 _ 50C1967 _ C.001»9_J _ 1 1574 _ 6S22 _ tOC19t7 C. 00288 )
Navieula stroemii Hust.
Navieula strttmii Hustedt, Arch. Hydrobiol., 22:544, fig. 3. 1931.
*S3 raSTROMC TCT NO Of STATIONS 3 __ _ _ __ _
- 14691 S _ Cd _ SJN1947 _ 0.00910 1 146747 EV __ 1AU1S37 0.00248 I I 1565 6S13 __ 50C1967 C. 02028 )
Navieula subeostulata Hust.
Navieula subeostulata Hustedt, Abh. Bremen Wiss. Ges., 8/9:386, fig. 13.
1934.
457 kASCCETU TOT NO' OF STATIONS 1
| 1433c~317JN1967O.OC646 I I
132
-------
Navicula subhamulata Grun.
Navioula subhamulata Grunow in: Van Heurck, Syn. Diat Beleiaue
pi. 13, fig. 14. 1885. ' S 4 '
458 NASHAHUl TCT KC CF STATICNS
I 157*
I 1350
GS22
BH 2
6CC1967 0.00288 ) « 1545
19AP1967 0.00441 1 ( 14C3
CA
0.00676 I C
MQ 1
4CC1S67 C.01370 I
Navicula subrhynchocephala Bust.
Navicula subrhynochocephala Hustedt, Arch. Hydrobiol., Suppl. 14:156,
pi. 1, fig. 11. 1935.
487 NASPECCI TCT KC CF S1MICNS
160973
146743
146757
(4i760
(46766
1 15A4- ..
( 1407
CH
EV
EV
EV
EV
III 1
SH 2
1876
20JN1937
25JL1937
22SEIS37
14DE1938
20C1S67
'14CY1S67
0.04724 )
0.00428 »
O.C337C )
0.00492 1
0.01584 1
0.02501 1
O.OC5S7 I
(46M5
C46770
146763
(46768
< 1306
1 1350 _
I
CH
EV
EV
EV
F 3
BH 2
20FE1946
9JL1937
234111937
16KR1938
11CC1964
19AP1947
0.00569
0.01789
0.12175
0.04410
C. 00277
0.00661
(46758
(46764
(46752
(46762
( 1557
( 1404
EV
EV
IV
EV
GS 4
HC 2
5JM937
17JL1937
15SE1937
18HR1938
30C1S67
10KY1967
C.CC357 1
0.06446 I
C.C2177 )
C. 08822 )
C.CC374 )
C. 05081 )
Navi-Gula subrotundata Hust.
Navieula subrotundata Hustedt, Arch. Hydrobiol., 40:917, pi. 41, figs.
30-33. 1945{
JttSt HASROTUO TOT HP OF STATICNS
146916 CH
JL2_
4HY194J C.00034 1 LJ274,
C 1
17SE1964 C.OC469 )
U75
D 2
17SE1964 C.OC645
t 1348
I 1364
E 5
GS 8
23»P1S67
10MY1967
0.00137 )
0.00185 1
( 1449
( 1565
C 3
ES13
16JL1967
50C1967
0.00382 )
C.04056 I
I 1538
< 1574
E 5
6S22
23SE1967
60C1967
C.C0552 I
O.OC575 )
{ 1545
ML 1
2CCIS67 0.00676 1 I 1350
BH 2
19AP1967 0.00881 I ( 1354
GH 2
25AP1967 C.OC345 I
Nawieuta subsuloata Hust.
Navicula subsuloata Hustedt, Arch. Hydrobiol., Suppl 15:261, pi. 18,
fig. 7. 1938.
•ill NASPECAZ TCT KP CF ST«TICNS
I 1350 BH 2
0.00220.1 1
Naviaula tantula Hust.
Navicula tantula Hustedt, Internat. Rev. Hydrobiol., 43:162. 1943.
461 NAT4N1UL TCT NO DF STATICNS 27
(46763
1 1281
< 1322
1 1565
( 1551
EV
E 3
E 6
GS13
£S 1
23AU1S37
17SE1964
16SE1964
15SE1964
7N01964
50C1967
50C1967
0.02029 )
0.00645
0.00392
0.01747
0.00333
Oj,OD069
0.00507
O.OC9??
0.00799 )
1272
1278
1262
|_1287
1323
1534
1567
L 1525
1550
C' 1
0 6
E 4
f 3
F 1
A 6
GS15
PU 1
MR 1
105E1964
18SE1964
16SE1964
15SE1964
6N01964
19SE1967
SOC1967
20SE1967
50C1967
0.00410 1
0.00384 )
C. 01108 1
C. 00500 )
0.00139 1
0.00310 1
0.00476 )
C. 01393 )
0.03717 )
1274
1280
1284
1303
1324
1538
1571
1545
1417
0 1
E 2
E 6
E 6
F 2
E 5
CS19
UL 1
HO 2
17SE1964
16SE1964
17SE1964
130C1964
6N01964
23SE1967
60C1967
2DC1967
22MV1967
C. 01408 )
C. 00681 )
C.OC318 )
0.01119 )
C. 00552 1
C.OC059 )
C.C1351 >
C. 00748 )
Navicula tridentula var. parallela Krasske
Navicula tridentula var. parallela Krasske, Abh. Ver. Naturk. Cassel,
56:46, pi. 2, fig. 35. 1926.
462 NATRIDFP TCT NC OF STATIONS
I 1550
MR 1
5CC1967 C.01239 ) ( 1404 *C 2
10m567 0.01270 I (
133
-------
Navioula tripunotata (0. F. Mull.) Bory
Vibrio tripunotata 0. F. Muller, Animal. Infus., p. 52, pi. 7,
1786.
Navicula tripunotata (0. F. Mull.) Bory, Encyclop. Method., p.
fig. 2.
563. 1824.
463 NATRIPUN TCT NO Of STATIONS 77
35*0 CH 11CY1879 0.00932
1469?) r.H 23N01945 0.00065
146905 CH JA1947 0.00123
I4A7SA FV 5JNI937 0.01070
146762 EV 18MR1938 0.06617
1 1240 n h 10JN1964 0.00767
I 1272 C' 1 10SE1964 0.00410
1 1301 F 4 130C1964 0.00442
I 1345 C 5 25AP1967 0.00195
1504 1 3 2B/ILJ1967 O-00741
1536 E 2 24SE1967 0.00273
1397 GS21 13MY1967 0.00131
1565 GS13 50C1967 0.00507
1570 GS1B 5CC1967 0.01993
1574 6S22 60C1967 0.01436
1546 LU 7CC.1967 0.01501
1522 BH 18SE1967 0.02916
L1521 IR 20SE1967 O.OC629
1545 HL 20C1967 0.02027
1551 FS 5nCJ<3i7 0.00799
1428 MU 2 29KY1967 0.03314
1417 HO 2 22HY1S67 0.02617
1399 PW 2 5MY1967 O.C068C
1400 SB 2 6PY1967 0.07148
1429 hL 2 29KY1967 0.05308
14?2 Gft 2 23WY1967 0.01022
.
3541 CH 1FE1881 0.00978
46917 CH 12JA1946 0.00083
46SC9 Ch MR1947 0.00455
46764 EV 17J11937 0.01612
1232 E 5 16HY1964 0.00174
1243 E 6 13JN1964 0.00209
1273 C' 2 1QSE1964 0.01075
1324 F 2 6N01964 0.00233
1375 E 3 7MY1967 0.00241
1533 1 4 1«F19A7 O.OO464
1378 GS 2 9MY1967 0.00421
1555 GS 2 30C1967 0.00353
1567 GS15 50C1967 0.00159
1571 GS19 6DC1567 C. 00117
1575 GS28 60C1967 0.00256
1520 HC 18SE19&7 0.00471
1523 RA 19SE1967 0.00923
1529 Xk 20SE1967 0.02398
1548 CA 30C1967 0.02544
1550 «R 50C1967 0.03717
1426 MS 2 29IC CF STATIONS
146922 CH
I 1557 GS
21AU1947
3CC1967
0.00097 )
O.OQ374 I
1 1279
I 155B
E 1
GS 5
16SC1S6A
40C1967
0.00393 t
O.Q0396 I
( 1346
-J
Navioula tusoula Ehr.
Navioula tusoula Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:215. 1840.
.466 NATUSCLJ1 TCT
CF STATICNS ___ 25__
IA097^
(46917
146923.
(46743
146747
(46750
< 1541
( 1527
1 1401
CH
CH
CH
EV
EV
EV
F •>
TR I
fC 2
1876
12JA1946
22KG1S46
20JN1937
1AU1937
24SE1937
110C1967
20SE1967
6PY1967
0.02362 1
0.00028 1
O.OC437 1
O.OC428 )
0.01238 )
O.OC943 1
0.00532 >
0.00629 )
O.OC586 I
1 3541
(46914
<46?2Q .
(46745
(46763
( 1244
1 1565
( 1545
(
CH
CH
Ch
EV
ev
F 1
SS13
ML 1
1FE1881
19AP1946
20CE1946
34L1937
23AU1937
11JN1964
50C1967
2CC1967
0.03913
0.00107
C.C0031
0.02090
C. 04056
0.00110
0.00507
0.00676
146921
(46924
(46922
(46757
(46752
( 1266
( 1574
) ( 1550
CH
CH
CH
EV
EV
0 3
6S22
ND 1
23N01S45
10MY1946
21ALJ1S41
25J11937
15S61937
18AU1964
60C1967
50C1967
C.OC065
0.00071
C.CC291
0.00481
C. 04354
0.00351
C.OC575
C. 01239
Navioula tusoula fo. obtusa Hust.
Navioula tuscula fo. obtusa Hustedt in: Pascher, Sussw.-Fl. Mitteleuropas,
Heft 10, Aufl. 2, p. 309. 1930.
134
-------
NATUSCVP TCT NC CF STATIONS 17
35AQ—
1555..
_CJH
sr, i
11MY1879
3CC1967
60U967 .
0.00466
0,00353
0.00734
(46763
( 1541
( 1560
( 1530
1 ( 1426
EV
GS 8
FR 1
MS 2
23AUH37
110C1967
40C1967
24SE1S67
29NY19A-)
12MY1967
C. 02029 I
0.00532 I
C. 00472 )
0.03000 I
0.00645 l'~
1 1268
I 1394
( 1545
~
CS18
HL 1
13HY1961
20C1967
C.OC172 I
C.CC676 )
C.C1308 >
Naviaula tusoula fo. vostrata Hust.
469 NATUSCVB TOT NC CF STATIONS I
( 1404 HO 2
10PY1967 O.C127C I
Naviaiila varihewpckii. Patr.
Navieula vanhewckti Patrick in: Patrick and Reimer, Acad Nat Sci
Philadelphia Monogr., 13:491, pi. 46, fig. 22. 1966.
472 NAVANHEU TCT NO OF STATIONS
( 1275
1 139?
0 I
17SE1964
12MY1S67
O.CC645 )
0.00925 1
2CC1S67 0.00676 )
1 1368
( 1396
GS12
GSJO
12HY1947
13MY1967
0.01207 I
0.00074 )
( 1389
( 1554
GS13
^S_J^_
3CC1967
C.OC516 I
0.00356 I
Navieula ventosa Hust.
Navioula ventosa Hustedt, Abh. Naturw. Ver. Bremen, 34:281, fig. 28-31.
1957.
473 NAVEMOS TCT NO CF SI«T10NS
I 1544 MU 1
_( 1154 EH ?
2DC1567
25APLS67
0.00238 1
O.QD173 I
I 1527
_J
TR 1
20SE1967 G.00629 I ( 1SSO
50C1967 C.01239
NawCeula ventralis Krasske
Navioula ventralis Krasske, Bot. Arch., 3:197, fig. 3. 1923.
AM NAVEKTRA TCT NO OF STATIONS
I 1550
5CC1967 0.06195 1 1 14D4
1CHV1967 0.01270 I
Nawieula wiridula (Klltz.) Kutz.
FrustuUa viridula KUtzing, Linnaea, 8:551, pi. 13, fig. 12. 1833.
Nauioula viridula (Kutz.) KUtzing, Bacill., p. 91, pi. 30, fig. 47. 1844.
17
lAioiA n.nnojfl 1 «4t?23 CH 2ZN01946 0.00219
(46907 CH ""U947 0.00099 ) (46757 EV 25JL1937 0.00481
1 1«1 A ^ 19AP1967 C.00108 ( 1«8 A 6 JOJ1.196T C. 00354
( 1566 SS14 50C1967 0.00183
f 1577 BH 1 18CF14A7 0.00729
( 1550 MR 1 5
OC
1967 0.03717
of.7 0.01211
( 1401 MO 2 6HY1967 0.00588
.( 147P GA 2 _ 23HY1967 O.OC511
{ 1567 6S15 50C1967 0.00159
15^1 GH 1 25SE1967 0. 01651
1553 S6 1 6CC1967 0.01469
1417 HO 2 22HY1967 0.00748
(46920 CH 200E1946 C.CCC31
46747 EV 1AU1937 0.00248
1533 A 4 19SE1967 C.OM64
1569 GS17 50C1961 C. 00149
1545 UL 1 20C1967 C. 00676
1426 XS 2 29HY1967 C. 09249
1350 BH 2 19AP1967 0.01982
1354 GH 2 25AP1967 0.00518 ! 1349 CI 2 19AP1961 C.OC359 )
Naoicula wiridula var. avenacea (Breib.) V. H.
Nav-Laula (vividula Kg. var.?/> ao&naeea de Breibisson ex Grunow -in\ Schneider,
Naturw. Beitr. Kenntti. Kaukasuslander, p. 112, pi. 4, fig. 23. 1878.
Navioula viridula var. avenacea (Brgb.) Van Heurck, Syn. Diat. Belgique,
p. 84. 1885.
135
-------
21AU1947 C. 00048 >
1559
6S_J_
( 1546
LU 1
20C1967 0.00500 ) < 1427
LU 2
6A 2
29HY1967 0.01211 > ( 1350
23BY1967 C. 02044 > _ J
BH 2
19AP1967
Navioula viridula var. Mnearis Hust.
Navioula viridula var. linearis Hustedt, Arch. Hydrobiol., Suppl. 15:264,
pi. 19, figs. 1-2. 1937.
476 NAVIRIVL TOT NC CF STATIONS
I 1316 D 6
I 1575 GS?a
9N01964 O.OC378 I
60C1967 0.00179 |
1355 GS19
J52Q HO 1
13HY1967 0.00117 ) ( 1571 CS19
1BSE1967 0.00471 ) I 1427 LU 2
6CC1967 C.OCC59 )
29HY1967 0.01211 I
Navioula viridula var. rostellata (Kutz.) Cleve
Navioula rostellata Kutzing, Bacill., p. 95, pi. 3, fig. 65. 1844.
Navioula viridula var. postellata (Kutz.) Cleve, K. Svenska Vet.-Akad.
Handl., Ny Foljd, 27(3):15. 1895.
479 NAVIBIVB TOT KC TF STAT1CKS
14&758 Ei! 5JM937 0,
OC357 I ( 1571
6CC1967 C.00059 I I 1550
50C1967 C.01239 )
I 1350 BH 2 19AP1967 0.00220 I I 1421 CH 2 23HY1967 0.01735 ( <
Navioula vulpina Kutz.
Navioula vulpina Kutzing, Bacill., p. 92, pi. 3, fig. 43. 1844.
480 NAVULP1N TCT NO OF STATIONS 2
( 1388 GS12 12KY1S67 0.00603 ) ( 1403 CA 2
10HV19«7 C.01308 ) (
Navioula wittrockii (Lagerst.) A. Cleve
Stauroneis wittrockii Lagerstedt, Bih. K. Svenska Vet.-Akad. Handl.,
1(14):38, pi. 2, fig. 15. 1873.
Navioula wittrookii (Lagerst.) A. Cleve, Soc. Sci. Fennica Comm. Biol.
4(14):86. 1934.
481 NAW1TTRO TCT NC CF STATICNS
I 1285
I 1565
F 1
G5J13
15SE1964
50C19J.T
0.00582 I
0.01014 1
50C1967 0.01239 t
( 1369
f 1567
I
GS13
6S15
12PY1967
50C1967
0.00258 )
C.00159 I
( 1396
I 1571
GS20
CS19
13MV1967
6EC1967
C.OC074 )
C.OC059 )
Navioula sanoni Hust.
Navioula zanani :Hustedt, Inst. Pares Nat. Congo Beige, Expl. Pare. Nat.
Albert, (Damas 1935-1936), Facs. 8:92, pi. 5, figs. 1-5. 1949.
485 NASPECOE TCT MC GF STATIONS 35
146923 CH 22N01«46 0.00219
1244 F 1 11JN1964 O.OC987
1256 E 2 14JL1964 0.01282
1760 f 3 6JL1964 0.02674
1285 F 1 15SE1964 0.01747
1305 F 2 11DC1964 0.00173
1346 C 7 21AP1967 0.00134
naa GS12 12MY1S67 0.02413
1394 GS18 13MY1967 C. 00688
15*7 ES15 50C1967 0.00159
1520 HO 1 18SE1967 0.00471
1426 US 2 29MY1967 0.01050
1229 C 5 14MY1964 O.C0423
1245 F 2 11JM964 0.01383
1258 f 1 6JL1964 C. 00944
17A8 E 2 15AU1964 0.00274
1287 F 3 15SE1964 0.00500
\V\ F 1 6N01964 C. 00418
1361 GS 5 10KY1967 0.00239
1 1390 GS14 12HY1967 C. 02936
( 1564 GS12 5CC1967 C. 00165
1547 MS 1 20C1S67 0.0079B
( 1527 TR 1 20SE1967 C. 00629
14C3 CA 2 10NY1967 0.05231
1439 B 6 5JM964 C.CC200 I
1246 F 3 11JN1964 O.C1793 ]
1259 F 2 6JU964 0.02479
1284 E 6 17SE1964 0.00635
1302 E 5 130C1964 C. 00405
1324 F 2 6N01964 C. 00464
1383 GS 7 10MY1967 C.OC535
1393 GS17 13MY1967 C. 01096
1566 GS14 50C1961 C.CC183
1546 LU 1 20C1967 C.OC500
I 1545 ML 1 20C1961 C.OC676
Navioula (viirldula var.?J
Species ineevtae sedis
136
-------
• 152, SH 1 ,.W,,*T 0 nOS77 ) ( 1522 BH 1 18S1M,67
Navieula (tuseula var. 1)
468 NATUSCVA TCT KC OF STATICNS I
( 1388 GS12 12NY1967 0.00603 I (
Naviaula (tusoula var. 3)
471 NATUSCFR TCT MO DF STATIONS 5
-U425B EJ( 5JN193? O.M357 ) (44764 EV " » 1917 fi.flIM? ( 1 l -57-, rsrp
1 1527 IR 1 ZOSE1967 0.00629 ) ( 1350 BH 2 19AP1967 0.00220 ) (
Naviaula sp. faff. N. laaustris)
397 NALACUSO TCT NO OF STATICNS 12
(46924 CH 1CKY1946 0.00071 ) ( 46S20 CH 20CE1946 0.00031 I (46916 CH
146906 CH MY1947 0.00133 ) (44922 CH 21AU1947 0.003B8 ) I 1544 HU 1
I 1546 LU 1 20C1'67 0. 010(10 1 ( 1521 SH 1 16SE1S61 0.00577 1 ( 1527 TR 1
( 1529 KW 1 20SE1967 0.01199 ) ( 1402 TR 2 6MY1967 0.00541 ) ( 1429 ML 2
Naviaula "pygmaea var. produata" (not validly described)
«5 NAPYGHVP TDT NO OF STATIONS 3
( 1264 C' 1 10AU1964 0.00193 1 ( 1533 A 4 19SE1961 0.00464 1 ( 1396 6S20
Navioula sp. #3.
483 NASPECOC TCT NC CF STATICNS 1
4PV194I C.CCC34 )
20C1967 0.00238 )
20SE1961 C. 06918 I
29HY1967 C. 01062 )
13HY1967 C.OC074 )
( 1265
C1 2
10AU1964 0.00224 ) (
NaviouZa sp. #4.
484 NASPECOD
I 1388 GS12
Naviaula
486 NASPECOH
I 1545 WL_
4 1350 BH
Navi.eu.1a
TOT NO OF STATICNS
12PY1S67 0.
sp. #8.
TPT NC CF STATICNS
JL1947 0
1 20C1967 0
2 19AP1967 0
sp. #10.
3
00603 ) ( 1565 GS13 50C1967 0.02028 ) ( 1566 ES14 SOC1961 C.OC183 )
11
.00049 ) 1 1304 F 1 110C1964 0.00247 1 ( 1356 CS20 13HYIS6? C.OC074 1 ..
.10812 1 ( 1552 SP 1 60C1967 0.01321 ) ( 1550 KR 1 50C1967 C. 03717 )
.00301 1 ( 1426 MS 2 29HV1967 C. 01050 1 ( 1427 ill 2 29HY1961 C.C6053 1
.01542 1 ( 1402 TR 2 6HY1967 0. 02707 1 I
488 NASPECCJ TCT NC OF STATIONS 1
( 1343
Naviaula sp. #12.
49C NASPECOL TCT NC CF STATICNS 37
(46919 CH
(4K77n FV
(46747 EV
146749 EV
146751 EV
( 1260 f 3
5JN1547
9.11 1937
1AU1937
74SE1937
12MR1938
10MR1938
6JU964
0.27162 (46758 EV 5JN1937 0.00713 (46743 EV 20JN1937 C.CC428 )
0.023B5 (46764 EV 17JL1937 0.20951 (46757 EV 25JL1937 C. 12036 I
0.00743 (4*163 EV 23AU1937 0.16234 (46752 EV 15SE1937 C. 17414 I
0.01414 (46748 EV 130C1937 0.10675 (46767 EV 270C1937 0.01160 )
0.01214 (46768 EV 16MR1938 0.10290 (46762 EV 18MR1M8 C. 02206 )
0.01117 (46761 EV 27NY1938 0.00818 ( 1258 F 1 6JL1964 0.00472 I
0.00191 ( 1540 C 5 40C1967 C. 00496 ( 1541 E 2 110C1967 C.C1597 )
137
-------
11B7
1559
1544
1526
1545
1550
C511
GS 7
MU 1
MO 1
WL 1
MR 1
17KVIU7
40C1967
20C1?67
20SE1967
2CC1967
50C1967
0-003QA
0.00350
0.00715 ]
0.01138
0.02703
0.02478
1565
I | 1547
1527
fr j 1551
6S13
HS 1
TR 1
ES J-
L3MY1967
5GC1967
20(1^67
JOSE1967
5001967
0.00172 1
0.01014 )
0.00798 1
0.006Z9 )
0. 01598 I
1554
1S74
1546
1529
1S52
CS I
CS22
LU 1
KM 1
SM 1
<)Qti96l
6CC1967
20C1967
20SE1967
6CC 196 1
<-.OC356 )
C. 00863 1
C-04001 I
0.02398 >
C.OC660 )
Navieula sp. #13.
491 NASPECCM TCT NO OF STATIONS
146747
I 1527
EV
TR 1
1AU1937
20SE1967
0.00248 I
0.00629 )
( 1285
I 1403
F 1
CA 2
15SE1964
10MY1967
0.00582 I
0.01308 I
I 1565
J
6S13
SGC1967 C.01521 I
Navieula sp. #14.
2 MSPECON TCT NO OF STATIONS
15SE1964 0.01095 1
20SE1967 0.01258 I
Navieula sp. #15.
493 NASPECQO TCT NO CF STATIONS 1
I 1522 BH 1 18SE1967 0.0054? I
Navieula sp. #18.
TCT nc n= STATIONS
I 1545 ML 1
2CC1967 O.OC67t 1
Navieula sp. #19.
496 NASPECDS TDT ND OF STATICNS
(4A«?1 T.H
(46914 CH
(4&47C CH
(46764 EV
(46744 FV
< 13B7 GS11
I IS*"; GS1B
I 1574 GS22
1 1550 MR 1
23ND1945
19AP194&
20DE1946
17JL1937
6DC1937
12MY1S67
50C1967
60C1967
5QC1967
C. 00065 (46917 CH 12JA1946 0.00166 (46915 CH 20FE1946 C.OC569
0.00107 (46924 CH 10MY1946 0.00141 (46923 CH 22N01946 0.00219
0.00092 (46919 CH: 5JN1947 0.00455 (46922 CH 21UI1947 0.00145
0.00806 (46747 EV 1AU1937 0.00248 (46763 EV 23AU1937 C. 02029
0.00975 (46768 EV 16MR1S38 0.01470 (46762 EV 18HR1938 C. 02206
0.00396 ( 1388 GS12 12MY1967 0.00603 ( 1556 GS 3 30C1967 C. 00521
0.02028 ( 1566 GS14 50C1967 0.00183 ( 1567 GS15 50C1967 C.OC159
0.01151 ( 1546 LU 1 20C1967 C. 02001 < 1531 CH 1 25SE1967 0.00845
0. 01239 ( 1351 HI 3 21AP1967 0.00310 ( 13SO BH 2 19AP1967 C.CC220
Navicula sp. #22.
498 NASPECOV TOT NO CF STATICNS
(46906
KY1947 0.00066 I ( 1285
15SE1964 0.00582 I
Navicula sp. #23.
499 NASPECOU TOT NO OF STATIONS 15
(46758
(46750
( 1451
1 1545
( 1354
EV
EV
C 7
»L 1
GH 2
5JN1937
24SE1937
16JL1S67
20C1S67
25AP1967
0.00713 )
0.00471 1
C.OC197 )
0.08109 1
0.00173 )
(46764
(46767
( 1542
( 1550
( 1407
EV
EV
E 3
MR 1
SM 2
17JL1937
270C1937
11CC1967
5CC1967
14MY1967
C. 00806 )
0.00387 )
C. 00509 >
C. 01239 )
C. 00597 1
(46763
146762
( 1546
( 1426
( 1423
EV
EV
LU 1
PS 2
MA 2
23AU1937
18MR193e
20C1967
29KY1967
25MY1967
G. 10146
0.06617
C.C1000
C. 02100
C.CC428
Navieula sp. #24.
500 NASPECOX TCT NO OF STATIONS
(46917
< 1537
CH
E 3
12JA1946
24SE1967
0.00028 )
0.00431 1
(46907
( 1541
CH
E 2
JL1947
1LOC1967
C.OOC49 I
0.00532 I
(46743
J
EV
20JK1937 C.OC428 »
138
-------
Navioula sp. #25.
-Stti—NASPFC.CT TCT NO OF STATIONS i
J 1541 E_2 LICt-1967 0.00532 I [
Navioula sp. #26.
502—NASPECDZ T07 kr r,P STATICMS 1
—CU MY1947 C.00066 I (_
Navioula sp. #27.
SO* KASPFf.AA TDT NC OF STAT1CNS S
I^AOin r.H aC1945 0.00109 1 (46764 EV
( 1390 GS14 L2MYlt67 0.00587 1 ( 1545 ML 1 20C1967 0.00676 I
Navioula sp. #29.
50* N^ISPECAC TCT MO OF ST
i llll £HZ T9AP1967 otoollo ) (1400 SB 2 6HYH67 C.0059fr I ( 142» Wt 2 2WY1967 C.01062 t
Navioula sp. #35.
510 NASPECAI TCT (iC OF STATIONS 1
( 1554GS 13CCIS670.00356 )
Navioula sp. #36.
511 NASPECAJ TCT NO OF STATIONS 2
~TT^i iUi 5DC1967 0.01014 ~j Tl546 LlTl 20C1'67
139
-------
Navicula sp. #37.
512 NASPECAK TCT NO OF STATIONS
I 1565 6S13
50C1967 O.Q050T ) I
Navicula sp. #38.
513 NASPECAL TCT NO OF STATIOKS
« 1565 SS13
5GC1967 C.04056 > < 1350 BH 2
UAPU67 0.00661 » I
Navieula sp. #39.
514 NASPECAH TCT NO OF STATIONS
I 1565 GS13 50C1967 0.01521 I ( 1350 BH 2
Navicula sp. #40.
19AP1967 0.00441 I I
515 NASPECAN TOT NO OF STATIONS
I 1567 GS15 50C1967 0.00159 I ( 1426 MS 2
Navicula sp. #41.
516 NASPECAC TCT NO OF STATIONS 1
< 1574GS2260C19670.00288 )T~
29HV1967 C.010SO I I 1354 GH 2
J5AP1967 C.00173 )
Nav-iouta sp. #42.
S17 NASPECAP TCT KC GF STATIONS 1
~l 1546LU I2CC1S67O.OC500 )T
Navicula sp. #43.
518 NASPECAO TCT NO OF STATIONS 6
I 1526 HO
I 1417 HQ
20SE196T 0.00569 1 t 1527 TR 1
22HY1967 0.00374 I ( 1350 BH 2
20SC1967 C.00629 I I 1550 fd 1
19AP1967 0.00220 I I 1402 TR 2
5CC1961 C.03717 )
6MY1S67 C.0054J 1
NavLoula sp. #44.
519 NASPECAtt TCT KD OF STtTlCNS 2
2dC1967 0.1013J ) < 1350 BH 2
19AP1967 0.00220 I I
Navicula sp. #45.
520 HASPECiiS TCT HID OF STATIONS 1
I 15*5 ML 1 2CC1967 0.00676 1 I
Navicula sp. #46.
-121 HASPECAT TCT NO CF SUTICKS 2
HL 1
20C1967 C.CC676 1 1 1350 BH 2
0.00220 I I
Navioula sp. #47.
5-22 NASPECAU TCT NO OF STATIONS 1
-L. 1550 Hfi_l 5QC1967 0.01239 1 1
Navicula sp. #48.
523 HASPECAV TCT MO CF STATtCNS S
I 1S50 HR 1 5OC1967 0.01239 > t
140
-------
Naviaula sp. #49.
S3* NASPECAU TCT MO OF STATIONS - 1 ----
I 1BSQ MB 1 _ SGC1967 O.C4S5t ) I
Navioula sp. #50.
S?S NASPECAX TOT KC CF STATIONS __ I __
I 1SSO MB 1 _ 5PCH67 O.OU3S I _ L
Naviaula sp. #53.
_5i7 __ NASPgCBt TCT NC CF SHT1CNS 1
( 135Q _ BH 2 _ 1QAP1967
Nav-ieula sp. #54.
5ii__ HASP6CBB TOT NC CF STATICNS _ 2
( 1350 BH 2 1SAP1S67 C.CCZ20 > I 11C5 E£ 2 12H<|9«7 O.OC6^5 ) I
Navicula, sp. #55.
2i._ NASPECBC TCT NO Of STAT ICKS __ 2_
< 1A?2 GA 2 23PV1S67 C.0102Z I ( 1423 XJ 2 25HV1967 C.00426 ) 1
141
-------
Genus Neidium Pfitz.
Pfitzer, Bot. Abh. Geb. Morph. Physiol., 1(2):39. 1871.
In most instances members of the genus Neidium comprise a minor compo-
nent of epipelic communities in freshwater. Probably none of the species
may be classified as euplanktonic but occasional specimens are found in
plankton collections. Members of the genus are very rare in our collections,
and those noted come from nearshore localities.
Neidium affine (Ehr.) Pfitz.
Navioula affinis Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:417, pi. 2(2),
fig. 7. 1843.
Neidium affine (Ehr.) Pfitzer, Bot. Abh. Geb. Morph. Physiol., 1(2):39.
1871.
. 511 NE
-------
535 NECALVUP TCT HC CF STJT1CNS 1
<*6760 EV 22SE1S37 0.OC492 ) (
Neidium dubium (Ehr.) Cleve
Navicula dubia Ehrenberg, Phys. Abh. Akad. Wiss. Berlin 1841-418
pi. 2(2), fig. 8. 1843. ' ' '
Neid-ium dubium (Ehr.) Cleve, K. Svenska Vet.-Akad. Handl., Nv Folid
26(2):70. 1894. ' y J '
536 NEOUBIUM TOT KC CF S1AT1CNS
(46909 CH KR1947 0.00455 ) ( 1256 F 1 6JL19640.00236 ) Tl522 Bh~T
18SE1S67 £.00183 I
Neidium dubiwn fo. constriction Hust.
Neidium dubium fo. constricta Hustedt in: Pascher, Siissw.-Fl. Mitteleuropas,
Heft 10, Aufl. 2, p. 246, fig. 384b. 1930.
537 KEDUB1FC IOT NO OF STATIONS
I 3540 CH 11MV1879 0.00466 ) (46758 EV 5JNH37 0.00713 ) (46768 EV ItHdlSae C.C1470 )
J.4S_15fi EM 27AP1538 O.OC16B I ( 1240 D 6 IOJN1964 0.00153 I < 1568 6516 50C1967 C.C€144 )
I 1574 GS2Z 6CC1967 0.01151 ) ( 1427 LU 2 29I-Y1967 0.01211 ) ( 14C7 SH 2 14MY1S67 O.OC597 l"
Neidium iridis (Ehr.) Cleve
Navicula ividis Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:418, pi. 4(1),
fig. 2. (1843.
Neidiim iridis (Ehr.) Cleve, K. Svenska Vet.-Akad. Handl., Ny Foljd,
26(2):69. 1894.
538 NEIRICIS TCT NO CF STATIONS 1
_.-__ __ ____ ___
Neidium iridis var. amphigamphus (Ehr.) A. Mayer
Navicula amphigcmphus Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:417,
pi. 3(1), fig. 8. 1843.
Neidium iridis var. amphigomphus (Ehr.) A. Mayer. Denkschr. Bayer. Bot.
Ges. Regensburg, 13:30. 1917.
53? NEJRIDVA TCT NO OF STATICNS
( 15*7 GS15 50C1S67 O.CC159 ) (
Neidium iridis var. vernalis Reichelt
Neidium iridis var. vernalis Reichelt, Sitzungsber. Naturf. Ges. Leipzig,
24:8. 1897.
540 NESPECGB TCT f>C CF STATIONS 8
) T4~69C9 CH MR1S47 0.009lT~l T469C7 Ch JL1941 C.00049 )
_ o!l57 1 (46764 EV _ 17JL1937 0.00806 I (46757 EV _ 25JL1937 _ C.OC481 )
146747 EV 1AU1937 0.00743 I I 1565 GS13 5CC1961 C. 00507 ) (
Neidium kozlowi Mereschk.
Neidium kozlotii Meres chkowsky, Arb. Exped. Kais. Russischen Geogr. Ges.,
1899-1901, Vol. 8, p. 16, fig. 7. 1906.
544 MFSPECCF TCT ME Jlf^SJ^
I 13«fl c<1? _ 12HY1S67 _ O.OCt09 I I
143
-------
Neidium ladogense (Cleve) comb. nov.
Navicula ladogensis Cleve, Acta Soc. Fauna Flo Fennica, 8(2):35, pi. 2,
fig. 3. 1891.
Coll: 1388.
Neidium saaoense Reim.
Neidium saaoense Relmer in: Patrick and Reimer, Acad. Nat. Sci. Phila-
delphia Monogr., 13:402, pi. 37, fig. 3. 1966.
Coll: 1813.
Species incertae sedis
Neidium sp. #3.
541 NESPECGC TCT
(60973
146757
I 1544
1 1530
CH
EV
MU 1
fa l
NO CF STJM.QNS 18
1876
25JU937
110C1S67
20C1S67
74SE1967
C. 04724 1
_J)JfiflQJl__L_
O.OC4B1 )
0.00238 I
C. 01000 1
( 3541
(46758
(46763
I 1571
( 1521
I 1545
CH
EV
EV
GS19
SH 1
VI. -1,
1FE1681
5JN1937
234U1937
6DC1967
18SE1967
2CC1967
C. 00578 »
C. 00713 )
C. 04058 t
C. 00059 )
O.OC577 »
0.00676 )
(46923
(46770
(46752
( 1575
( 1527
( 1553
CH
EV
EV
GS28
TR 1
56 1
Z2N0194i
9JL1937
15SE1931
60C1961
20SE1967
60C1967
C.CC219 1
C. 02177 )
C.CC129 )
C. 02516 )
C.CC734 )
Neidiwn sp. #4.
S4? KFSPECCD TFT KIC PF STATIONS __?
(46747 EV. HU1937 0.00248 ) 146768 EV
16MR1938 C.01470 I (
Neidiwn sp. #5.
543 NFSPECDE TOT kC CF STAT1CNS 1
I467&4 EV UJL1937 C.OCBC6 I (
Genus Nitzsahia Hass.
Hassall, Hist. British Freshw. Alg., Vol. 1, p. 435.
1845.
The members of the genus Nitzschia occurring in Lake Michigan are found
in a variety of habitats. Although the greatest number of species are found
in benthic environments, a number of species are apparently euplanktonic. Be
sides the euplanktonic species, many of the entities that find their primary
habitat in epipelic communities are successful facultative planktonts and
are regularly taken in plankton collections, usually in low numbers.
Nitssohia aoioulacds (KUtz.) Wm. Smith
Synedra aeicularis Kxitzing, Bacill., p. 63, pi. 4, fig. 3. 1844.
Nitssohia acicularis (Kiitz.) Wm. Smith, Syn. British Diat., Vol. 1,
p. 39, pi. 13, fig. 108. 1853.
MAC1CUL TCT NO OF STATIONS
146906 CH WY1947 C.00066
1439 B 6 5JN1964 0.00799
1243 E 6 13JN1964 0.00209
1257 E 3 14JL1964 0.00479
1260 F 3 6JL1964 0.00191
1450 C 5 16JL1967 0.00190
1550 HR 1 50C1967 0.03717
1401 HO 2 6MY1967 0.01176
1349 Cl 2 19AP1967 0.00359
46764 EV 17JL1937 0.02417
1238 0 3 11JN1964 C. 00400
1246 F 3 11JN1964 C. 00598
1258 F 1 6JL1964 0.00944
1340 C 7 28MR1967 C. 00073
1546 LU 1 20C1967 0.00500
1426 HS 2 29MY1967 C. 01050
1353 FA 2 23AP1967 C. 01055
1231 f. 3 ltHyiS64 C.CC4B9
1241 E 2 13 JN 1964 0.00148
12!2 C> 1 16JL1S64 C.OC279
1259 f Z 6JL1964 0.01549
1449 C 3 16JL1967 C. 00382
1551 ES 1 5CC1967 C. 00799
13SO BH 2 1?4P1967 C.CC22C
1 1354 CH 2 25AP1967 0.00345
Nitzsahia aauta Hantz.
Nitzschia aauta Hantzsch ex Grunow in\ Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):90. 1880.
144
-------
546 N1ACUTA TCT KB CF SUTICNS 124
1*0973 CH 1876 0.0*724 )
(46921 CH 23N01945 0.00388
1*6914 CH 19AP1946 0.00747
146920 CH 200E1946 0.00031
146916 CH 4MY1947 0.00407
(46907 CH JL1947 0.00937
(46771 EV 11JN1937 0.01664
I467S7 EV 25JL1937 0.00481
146759 EV 19WY1938 0.01013
I 1439 8 6 5JN1964 0.02198
1 l?5? C- 1 16JI.1964 O.OC279
i
_
1257 E 3 14J11964 0.00718
1760 f * 6JL1S64 0.01528
1285 F 1 15SE1964 0.01747
1J07 0 6 140C1964 0.00190
1305 f 2 110C1964 C. 01035
1119 E 3 7N01964 0.00524
1323 F 1 6N01964 0.00279
1139 C 5 28HR1967 0.00624
1342 A 4 19AP1967 0.00361
1348 E 5 23AP1S67 C. 00960
1370 A 6 3MY1967 0.01151
1175 E 3 7HY1967 0.00241
1410 A 6 24MY1967 0.03383
1411 A 3 12JN1967 0.00257
1448 A 6 1CJU967 0.00354
1381 GS 5 10HY1967 0.00477
1386 GS10 12MY1S67 0.00287
1389 GS13 12MY1S67 0.00516
1393 GS17 13KY1967 0.01096
1197 GS21 13MY1967 0.00327
1559 6S 7 40C1967 0.00350
1569 GS17 50C1967 O.OC149
1528 SB 1 20SE1967 0.01444
1550 MR 1 5CC1967 C. 18585
1427 tU 2 29MY1967 0.01211
1199 PH 2 5CY1967 0.00680
1400 SB 2 6MY1967 0.02383
1401 CA 2 1CHY1967 0.17000
1407 SM 2 14KY1967 0.00597
1471 CH 2 71HV10A7 O.O171«i
1424 KN 2 2SHY1967 0.01332
3541 CK 1FE1881 C.OOS78
46917 CH 12JA1946 0.00111
46S24 CH 10HY1946 0.00287
46505 CH JA1947 0.00123
46SC6 CH MY1947 0.00597
46S22 CH 21AU1947 0.00145
46743 EV 20JN1937 0.02997
46747 EV 1AU1937 0.00248
46761 EV 27KY1938 0.01361
1441 B 6 24JL1964 C. 00441
1255 C S 15JL1964 0.00513
1258 F 1 6JL1964 C.C11BO
177I C 7 22SE1964 C. 00653
1286 f 2 15SE1964 C. 01095
1302 E f 130C1964 0.02429
1306 F 3 110C1964 0.01940
1221 E 5 7NQ1964 0.00638
1337 C 3 2HR1967 0.00147
1340 C 7 28MR1967 0.00436
1343 A 6 19AP1967 0.00208
1368 A 3 4MY1967 0.00314
1372 C 5 5f«Y1967 0.00355
1376 E 5 6KY1967 0.00281
1412 C 5 31MY1967 0.00421
1432 A 4 13JN1967 0.00766
1536 E 2 24SE1967 0.00273
1382 GS 6 10KY1967 0.00833
1387 GS11 12KY1967 0.01584
1390 GS14 12MY1967 0.00587
1394 6S18 13HY1961 0.02580
1555 GS 2 30C1967 0.00353
1560 GS 8 40C1967 0.00472
1544 MU 1 2CC1967 0.00477
1551 ES 1 50C1967 C. 01598
1553 SG 1 6CC1967 0.00734
1417 HO 2 22HY1967 0.01495
1401 MG 2 6MY1967 0.00588
1352 Kfc 2 21AP1967 C. 02577
1404 MC 2 10HY1967 0.01270
1349 CI 2 19AP1967 C. 01078
1432 Ki •} 23KV1S67 C.D459D 1
(46910 Ch OC1945 C 00109 t
(46915 CH 20FE1346 C.C1138
146923 Cf, ;?N(;|9*f (• OT719
(469C9 CH MR1947 C.01366
(46919 CH 5JN1947 C.C1366
'"•O'58 EV 5JN1937 C.C2853
(46770 EV 9JL1917 C O^SA
(46756 £V 27AP1938 C.OC336
( 1233 B 3 5JN2964 O.C0238
( 1250 C 6 10JU964 C.C1233
( 1256 E 2 14.11 10*4 r r?c*c
1259 F 2 6JL1964 C.CC930
1284 E 6 17<;Fi<;66 C.CJ542
12^0 C- 1 I60C1964 C.TTC37S
1304 F 1 110C1964 C.CC988
1311 D 1 eN019t4 C.C0258
1322 E 6 7N01964 C.C2000
1338 C 3 28MR1967 C. 00529
13«1 A 3 19AP1967 C.OC542
1346 C 7 21AP1967 C. 00935
1369 A 4 4HY1967 C.CC373
1374 E 2 7MY1967 C.OC299
1408 A 3 23MY1967 C. 01342
1415 t 3 28MY1967 C.OC225
1435 C 7 13JN1967 C. 00631
1379 GS 3 9HY1967 C.OC309
1383 GS 7 IOMY1967 C.C1604
1388 CS12 12MY1967 C.OC603
1391 GS15 12KY1967 C. 00479
1395 ES19 13HY1961 C. 00705
1557 GS 4 30C1967 C. 00747
1568 GS16 50C1961 C. 00289
1520 KO 1 18SE1967 C.OC471
1552 SN 1 60C1967 C. 00660
1426 HS 2 29HY1967 C. 02100
1425 RA 2 25MY1967 C. 01768
1402 TR 2 6HY1967 C. 00541
1429 NL 2 29HY1967 C. 03185
1405 ES 2 12MY1967 C. 02580
1406 GB 2 13MV1967 0.01078 )
1453 Ul 2 JSKV1061 C.OC4;B 1
Nitzsoh-i-a amphibia Grun.
Nitzsshia amphibia Grunow, Verb. Zool.-Bot.
fig. 23. 1862.
Ges. Wien, 12:574, pi. 18,
547 NIAC.PHIB TCT NO OF STATIONS 52
(46910
(46914
(46920
(46916
(46907
(46743
(46757
(46765
(46750
(46762
( 1252
( 1343
1559
1546
1545
1553
1417
I 1406
CH
CH
CH
CH
CH
EV
6V
EV
EV
EV
C1 1
A 6
GS 7
LU 1
WL 1
SG" i
HO 2
GB 2
OC1945
L9AP1946
20CE1946
4MY1947
JL1947
20JN1937
25JL1937
30AU1937
24SE1S37
18MR1938
16JL1964
19AP1967
40C1967
20C1967
2CC1967
60C1567
22HY1S67
13KY1S67
0.00328
0.00320
O.OC1G5
0.00068
0.00296
O.OC428
0.1B295
0.02789
0.00471
0.15439
0.00279
0.00069
0.00350
O.OC500
O.OC676
0.01469
0.00374
0.00270
(46S21
(46924
(469C5
(465C6
(46922
(46770
(46747
(46752
(46748
(46766
< 1279
( 1383
1566
1522
1549
1428
1350
(
Ct<
CH
CH
CH
Ch
EV
EV
EV
EV
EV
E 1
GS 7
GS14
BH 1
MO 1
MU 2
BH 2
23N01945
10MY1946
JA1947
MY1947
21AU1S47
9JL1937
1AU1937
15SE1937
130C1937
14DE1S36
16SE1964
10HY1961
50C1967
18SE1967
4CC1967
29HY1967
19AP1967
C. 00388
0.00141
0.00123
C. 00066
C.0101B
0.00596
O.C5446
C. 13061
0.10675
0.03169
0.00393
C. 00267
C. 00183
0.00365
0.01370
0.00301
C. 07048
(46915
(46923
(46909
(46919
(46758
(46764
(46763
(46760
(46768
1243
1264
1557
1573
1527
1550
1426
1407
CH
CH
CH
CH
EV
EV
EV
EV
EV
E 6
E 6
CS 4
GS21
TR 1
PR 1
PS 2
SM 2
20FE1946
22N01946
MR1947
5JN1947
5JN1937
17JL1937
23AU1937
22SE1937
16HR193e
13JN1964
17SE1964
30C1967
6CC1967
20SE1967
50C1967
29HY1967
14MY1967
C. 02845
0.01530
C.CC911
C. 00455
C.C2140
C. 12893
C.4C584
C.OC9B5
C. 17639
C. 00209
C.CC318
C.OC374
C.CC112
C.C1258
C. 11151
C.C105C
C.OC597
Nitzsehia amphibia var. fossilis Grun.
Nitssohia amphibia var. fossilis Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):98. 1880.
,549 NIAMPHVO TOT HC CF STtllflNS 3_
( 1574
6CC1967 0.00288 1 I 1550 HR 1
50C1967 C.01239 )
Nitzsehia angustata (Wm. Smith) Grun.
Tryblionella angustata Wm. Smith, Syn. British Diat., Vol. 1, p. 36,
suppl. pi. 30, fig. 262. 1853.
Nitssohia angustata (Wm. Smith) Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Fo'ljd, 17(2):70. 1880.
145
-------
55C NIANCUST TCT KO OF STATIONS 75
( 3507
(46923
1469-09-
(46919
467*ifl
(46757
146752
146744
1226
1264
1285
1337
1390
1557
1S74
1529
1550
1350
1400
1407
1421
CH
CH
CH
CH
FV
EV
EV
EV
D 2
C' 1
F 1
E 6
C 3
GS14
GS 4
KU 1
PR 1
BH 2
SB 2
SM.2
CH 2
19FE1881
22N01946
MR1947
5JN1947
5JN1937
25JL1937
15SE1937
60C1937
14HY1964
10AU1964
15SE1S64
13QC1964
2HR1S67
12NY1S67
30C1967
6CC1967
20SE1967
5DC1967
19AP1967
6PY1967
14MY1967
23MY1967
0.03396 )
0.06338 1
C. 01821
0.02731
O.OC357
O.OC963
0.08707
0.01463
0.00195
0.00193
0.05241
0.00560
0.00147
0.00374
0.01199
0.02478
1.00220
O.OC596
0.01791
0.01735
(46921
(46920
(46907
(46743
(46747
146760
(46748
1258
1279
1297
1304
1387
1391
1567
1526
1549
1553
1401
1403
1349
( 1422
CH
CH
CH
CH
EV
EV
EV
F 1
E 1
0 6
f l
GS11
GS15
GS15
HQ 1
MO i
SG 1
MO 2
CA 2
CI 2
GA 2
23N01945
20CE1946
4HY1947
JL1947
20JN1937
1AU1937
22SE1937
13CC1937
6JL1964
16SE1964
14CC1964
110C1964
12I«X1967
12MY1967
5CC196.7
j2CSF1967
40C1967
6CC1967
6NY1967
10CY1967
19AP1967
23HY1967
0.02796
0.02199
0.00747
0.01356
0. 00170
0.01183
0.00856
C. 00990
0.01477
0.04270
0.00393
C. 00190
C. 00494
0.00396
0.00479
0.00159
O.OOSiU
0.01370
0.01469
0.00588
0.06539
0.00359
0.00511
( 3541
146917
(46924
(469C5
(46906
(46922
(46764
(46763
(46750
(46767
1284
1300
1322
1368
1398
1572
1527
1552
1426
1402
1404
( 1419
( 1423
CH
CH
CH
CH
CH
CH
EV
EV
tv
EV
EV
E 6
E 3
E 6
GS12
GS22
GS20
TR 1
SH 1
KS 2
TR 2
HO 2
BU 2
MA 2
1FE1881
12JA1946
10MY1946
JA1947
MY 1947
21AU1947
17JL1937
23AU1937
24SE1937
270C1937
27AP1938
17SE1964
13 OC 1964
7N01964
12MY1967
14MY1967
6CC1961
20SE1967
6DC1967
29MV1961
6MY1967
10MY1967
23MY1967
25KY1967
0.28367 1
G.OC494 )
C.OCS96 1
C. 03223 I
C. 30438 1
C.04713 )
C.CC168 1
C.OC318 1
0.00358 1
C.CC333 )
C.OC603 )
0.00304 J
C.CC090 )
0.006Z9 1
C.C1981 1
C.C2100 1
0.00541 )
C.C127C )
C. 01831 I
C.CM2S )
Nitzsohia angustata var. aauta Grun.
Nitzschia angustata var. aeuta Grunow in: Cleve and Grunow, K.
Vet.-Akad. Handl., Ny Foljd, 17(2):70. 1880.
Svenska
NIAN6UVA TCT NO OF STATIONS
146920
JQH_
20DE1946 0.00062 I (46919
5JN1947 C.00303 I
11JN1964 C.00219 1
( 1541
110C1967 0.00532
( 1556
GS 3
30C1967 0.00521 I (
Nitzsohia apiaulata (Greg.) Grun.
Tvyblionella apiaulata Gregory, Trans. Micr. Soc. (London), n. s
pi. 1, fig. 43. 1857.
Nitzsahia apiaulata (Greg.) Grunow in* Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):73. 1880.
4:79,
552 NIAPICUL TCT NO OF ST4TICNS 1
( 1406SB 213MY1967O.CC27C I(
Nitzsahia baoata Hust.
Nitzsahia baoata Hustedt, Arch. Hydrobiol.
figs. 30-33. 1938.
553 NIBACATA TCT NO OF STATIONS 188
Suppl., 15(3):485, pi. 41,
(60973 CH 1876 0.02362
(46917 CH 12JA1946 0.00166
(46924 CH 10HY1946 0.00141
146916 CH 4MY1947 0.00204
(46907 CH JL1947 0.32052
146771 EV 11JN1937 0.02140
(46757 EV 25JL1937 0.01926
(46744 EV 60C1937 0.01463
(4674; EV 12MR1938 0.01214
(46761 EV 27MY1938 0.00273
1225 C 6 15MY1964 O.C2352
1228 0 2 14MY1964 0.14403
1231 E 3 16NY1964 0.34243
1234 B 3 18JN1964 0.00562
1236 C' 1 6JN1964 O.C1050
1239 D 4 11JN1964 0.00696
1242 E 3 13JN1964 0.01049
1245 F 2 11JN1964 0.12102
1440 B 6 11JL1964 0.01106
1252 C- 1 16JL1964 O.OC279
1255 0 5 15JL1964 0.02053
1258 F 1 6JL1964' 0.15103
1261 8 3 2AU1964 0.00196
1268 E 2 15AU1964 0.03009
1271 C 7 22SE1964 0.01306
1284 6 6 17SE1964 0.00318
1287 F 3 15SE1964 0.00500
1299 E 2 12CC1964 0.00626
1303 E 6 130C1964 0.01679
1306 F 3 11 CC 1964 0.00832
(46-51C CH OC1945 0.00218
(46915 CH 20FE1946 0.01707
(46920 CH 20CE1946 0.00031
(46906 CH HY1947 0.11880
46922 CH 21AU1947 0.00436
(46743 EV 20JN1937 0.03426
46747 EV 1AU1937 C.C1980
46748 EV 130C1937 0.02135
(46756 EV 27AP1938 0.00672
46766 EV 14CE1936 0.03169
1226 C 7 16MY1964 C. 05327
( 1229 0 5 14MY1964 0.11207
1232 E 5 16MY1964 C. 73046
1235 C 7 16JN1964 C. 00847
1237 C' 2 8JN1964 0.06445
1240 0 6 10JN1964 0.04909
1243 E 6 13JN1964 0.15451
1246 F 3 11JN1964 C. 12550
1441 8 6 24JL1964 0.00220
1253 C' 2 16JL1964 0.00456
1256 E 2 14JL1964 0.19785
1259 F 2 6JL1964 0.02169
1265 C* 2 10AU1964 0.00224
1269 E 3 15AU1964 0.17267
1280 E 2 16SE1964 0.00681
1285 F 1 15SE1964 0.00582
1297 0 6 140C1964 0.00190
1300 E 3 13QC1964 0.00358
1304 F 1 11QC1964 0.00494
1307 B 6 N01964 0.00361
1
1
1
1
46921 CH 23N01945 C.OC323
46914 CH 19 AP 1946 0.00641
46909 CH NK1947 C.CC911
46919 CH 5JN1947 C. 14112
46758 EV 5JN1937 C.OC357
46764 EV 17 JL 1937 C.9C250
46763 EV 23AU1937 C. 08117
46767 EV 270C1937 C. 00387
46759 EV 19HY1938 C.CC338
1224 B 4 18KY1964 0.01961
1227 C* 2 13HY1964 O.CC548
1230 E 2 16MY1964 C. 4 1488
1233 B 3 5JN2964 0.01429
1439 B 6 5JN1964 0.12787
1238 D 3 11JN1964 C. 38600
1241 E 2 13JM964 C. 06062
1244 F 1 11JM964 C. 04031
1248 B 3 24 JL 1964 C.OC197
1250 C 6 10 Jl 1964 0.01644
1254 D 2 15JL1S64 C.OC044
1257 E 3 14 JL 1964 0.24405
1260 F 3 6JL1964 C.C2101
1266 0 3 18AU1964 C.OC351
1270 F 1 10AU1964 C. 00272
1281 E 3 16SE1964 C.OC785
1266 F 2 15SE1964 C.C2169
1298 E 1 120C1964 0.00269
1302 E 5 130C1964 C.CC810
1305 F 2 HOC 1964 0.00173
13C8 C 7 4N01964 C.CC304
146
-------
1122 E 6 7ND1964 0.01666
1338 C 3 28NR1967 0.03835
13*1 A 3 19AP1967 0.0*882
1344 C 3 25AP1967 0.01158
1347 E 2 23AP19A7 0.06178
1370 A 6 3MY1967 0.00460
1375 E 3 7MY1967 0.00241
1409 A 4 23MY1967 0.00298
1415 E 3 28MY1967 0.00225
1434 C 5 17JN1967 0.00299
1447 A 4 11JL1967 0.00234
14'51 C 7 16JL1967 0.00591
1536 t 2 24SE1567 0.00273
1381 GS 5 10MY1967 0.01431
1386 GS10 12MY1967 0.01149
1393 GS17 13MY1967 0.00822
1397 GS21 13MV1967 0.00131
1557 GS 4 30C1967 0.00374
1572 GS20 60C1967 0.00090
1521 SH 1 1SSE1967 0.01154
1527 TR 1 2CSE1967 0.04403
1549 HQ 1 40C1967 0.01370
1550 MR 1 JOC1967 0.65667
1426 MS 2 29MY1967 0.13648
1417 HO 2 22MY1967 0.08599
1399 PH 2 5MY1967 0.01360
1400 SB" 2 6MY1967 0.04765
1354 GH 2 25AP1967 0.17433
1404 MO 2 10HY1967 0.02541
1349 CI 2 19AP1967 0.06466
1420 1H 2 23MY1967 0.03021
1423 MA 2 25MY1967 C.CC856
1336 C 3 27JA1967 0.00385
1339 C 5 28MR1967 C. 13095
1342 A 4 19AP1967 0.10647
1345 C 5 2SAP1967 0.24755
LL1A8 E_5 23AP1967 (J-OJ447
1372 C 5 5MY1967 C. 01064
1316 E 5 6MY1967 0.00843
1410 A 6 24MY1967 0.01128
__ 1416 E £ 28MY1967 0.00437
1435 C 7 13JN1967 0.00316
1449 C 3 16JL1967 0.01146
1452 E 2 14JL1967 0.00213
1538 E 5 23SE1967 0.02210
1383 GS 7 10MY1967 0.01337
1387 6S11 12MY1967 0.00792
1394 6S18 13MY1967 0.05505
1398_ GS22 14MY1967 C. 00607
1566 GS14 50C1967 0.00183
1544 MU 1 20C1S67 0.00238
1522 SH 1 18SE1967 0.00182
1530 FR 1 24SE1967 0.01000
1551 ES 1 50C1967 0.03195
1553 SG 1 6GC1967 1.64512
1351 MI 2 21AP1967 0.06206
1418 SH 2 22KV1967 0.01555
1401 HO 2 6HY1967 0.03528
135Z KW 2 21AP1961 0.04295
1429 ML 2 29MY1967 0.14864
1405 ES 2 12MY1967 0.01935
1406 G8 2 13XY1967 0.00539
1421 CH 2 23MY1967 0.05205
1 1424 KM 2 25HY1967 0.05329
f
"" t 3 7N01964 C.CC524
13*0 C 7 28HR1967 C.C4581
1343 A 6 19AP1967 C OC347
!346 C 7 21AP1967 C.OOS34
"74 E 2 7HY196J C.OC598
!*12 C 5 31MY1967 C. 01263
1438 E 5 14JN1967 C.OC363
1450 C 5 lft.II 1967 frrr<;Tl
1511 E 2 1SE1967 0.00307
1379 CS 3 9MV1967 r.ccint
1384 GS 8 10HY1967 C. 01109
1391 GS15 12MY1967 C.CC958
1395 GS19 13MY1967 C.C0117
1555 GS 2 30C1967 fl-fl(HS3
1569 «S17 50C1967 C.OC149
1546 LU 1 20C1967 C. 01000
1526 KG 1 20SE1967 0.14223
1545 ML 1 20C1967 C 02703
1552 SM 1 6CC1967 0.01981
1428 KU 2 29KY1967 0. 01808
1427 LU 2 29MY1967 C. 07264
1350 BH 2 19AP1967 C. 03084
1402 TR 2 6KY1967 0.02707
1353 FR 2 23AP1967 C.C1C55
1403 CA 2 10MY1967 C. 31385
1407 SM 2 14MY1967 0.02986
1419 BU 2 23HY1967 0.03662
1422 GA 2 23HY1967 C. 03065
Nitzschia bulnheimiana (Rabh.) H. L. Smith.
Homoeooladla. bulriheimiana Rabenhorst, Alg. Sachsens resp. Mitteleuropas
No. 1301. 1871.
Nitzschia bulriheimiana (Rabh.) H. L. Smith, Mat. Sp. Typ., No. 689. 1874.
NIBULNHC TOT NO OF STATIONS
(46764
1 1551
EV
ES 1
17JL1937
50C1967
0.05641 )
0.00799 t .
<46767
( 1550
EV
MR 1
270C1937
50C1967
0.00774 )
fl. 01239 )
1 1536 E 2
1
24SE1961
C.OC273 )
Nitzsehia aapitellata Bust.
Nitzschia oapUellata Hustedt in: A. Schmidt, Atlas Diat., pi. 349,
figs. 57-59.
1922.
MICAP1TE TTT NO Of STATIONS
I 1531
EH 1
25SE1967 0.03381 I ( 1545 Hl_J_
2DC1967 0.01351 I < 1417 HO 2
22HY1967 C.CC374 1
Nitzsehia oanf-Lnis Bust.
Nitsseh-Ca confinis Hustedt, Inst. Pares Nat. Congo Beige, Expl.
Albert, Miss. Damas (1935-1936), Fasc. 8, p. 145, pi. 11, figs.
pi. 13, figs. 84-90. 1949.
Pare. Nat.
49-54;
Nir.OMFlM TflT NO OF STATIONS _ 99
(46917 CH
I&A47& CH
(46? EV
< 46744 EV
1*^749 Fy
(46751 EV
( i?7« n
( U55 0
nrl945 0.00109 1 (4*521 CH 23N01945 0.03816
12JA1946 0.00166
1QMY1946 0.00494
4MY1.947 0.00407
JL1947 O.C0690
5JN1937 OiOt419
9,^1937 0.01193
1AU1937 0.05446
15SE1937 0.39182
60C1937 0.01951
12HR1938 0.01214
30MR1938 0.01117
5 14MY1964 0.00211
5 15JL1964 0.00513
A.ll 146A 0.1)330*
1266 3 3 18AU1964 0.00351
J27S q 2 17SE1964 0.00645
1285 F 1 15SE1964 0.02330
1297 p 6 14CC1S64 O.C0190
130T B 6 N01964 0.00361
134£ A 4 19AP1967 0.00361
1348 E 5 23AP1967 0.00137
144? _t_3 16JL1967 0.00764
1454 E 5 15JL1967 0.00200
1364 GS a 10MY1967 0.00370
1394 GS18 13MY1967 0.00688
1560 GS 8 4GC1967 C. 00472
(46915 CH 20FE1946 0.07398
(46923 CH 22N01946 0.10928
(469C6 CH MY1947 0.00796
(46913 CH 6AU1947 0.01046
(46743 EV 20JN1937 0.04710
(46764 EV 17JL1937 0.49960
(46763 EV 23AU1937 0.24351
(46760 EV 22SE1937 0.02462
(46748 EV 130C1937 0.10675
(46768 EV 16MR1938 0.01470
146759 EV 19HV1936 0.00675
( 1243 c 6 13JN1964 0.00209
( 1256 5 2 14JL1964 0.00183
( 1259 F 2 6JL1964 0.00310
( 1268 E 2 15AU1964 C. 01368
( 1279 E 1 16SE1964 0.00393
I 1288 8 3 150C1964 0.00218
( 13C3 E 6 13CC1964 0.00560
( 1340 C 7 28MR1967 0.00145
( 1343 A 6 19AP1967 0.00069
( 1373 C 7 5HV1967 0.00285
( 1450 C 5 16JL1967 0.00381
( 1536 E 2 24SE1967 0.00545
( 1387 GS11 12MY1967 0.00396
( 1554 GS 1 30C1967 0.00712
( 1562 GS1C 50C1967 C. 00247
(469C8 CH DE1945 0.02014
(46914 CH 19AP1946 0.00854
(469C9 CH MR1947 C.C6375
(46919 CH 5JN1947 C. 88770
146922 CH 21AU1947 C.1C468
(46745 EV 3JL1937 0.02090
(46757 EV 25JL1937 C. 03370
(46750 EV 24SE1937 0.41476
(46767 EV 270C1937 C. 03095
(46762 EV 18MR1936 C. 04411
(46766 EV 14DE1938 C. 11090
( 1252 C- 1 16JL1964 C.01116
( 1257 E 3 24JL1964 C.CC718
( 1260 f 3 6JL1964 C.CC382
' 1271 C 7 22SE1964 C.CC653
1284 E 6 17SE1964 C. 00318
1445 8 6 140C1964 C.OC652
1304 F 1 110C1964 C.CC247
1341 A 3 19AP1967 0.00108
1345 C 5 25AP1967 C.CC195
1374 E 2 7MY1967 0.00299
1453 I 3 15JL1967 C.OC253
1383 5S 7 10HY1961 C.OC267
1391 CS15 12MY1967 C. 00479
1557 GS 4 30C1967 C. 01495
1563 CS11 50C1967 C.OC234
147
-------
1566 GS14 5QC196T 0.001B3
1573 GS21 60C1967 O.OC112
1529 KM 1 20SE1967 0.01199
1550 MR 1 50C1967 0.09912
1352 KW 2 21AP1967 0.00859
1405 ES 2 12HY1967 0.01935
1569 GS17 50C1967 0. 001*9
157* GS22 60C1967 O.OOZ8B
1515 ML 1 20C1967 0.00676
1351 PI 2 71API967 C. 00310
1403 CA 2 IOMY1967 C. 09154
13*9 Ct 2 ICAP1967 0.00359
1571 GS19 &UCT95T T^10""
1526 HO 1 20SE196T £t"|f£-
1551 ES 1 50C1967 t.CJ396
1*17 (1C 2 22MY1967, C.CC3_14_
1404 «fl 2 10HY1967 l.tizft
1422 CA 2 23MY1967 C-OOfiL
Nitzsohia denticula Grun.
Nivzsohia dentieula Grunow in: Cleve and Grunow, K. Svenska Vet.-Akad.
Handl., Ny Foljd, 17(2):82. 1880.
558 KtDErmC TOT NO OF STJT1CNS 44_
(46921 CH 23N01945 C.OC129
146923 CH 22N01946 0.00219
146916 CH 4HY1947 O.OQ034
146907 CH JL1947 0.00148
146743 EV 20JN1937 O.OC856
146747 EV 1AU1937 0.03713
(46748 EV 130C1S37 0.04270
146762 EV 18KR1938 0.08822
1258 F 1 6JL1S64 0.00708
1279 E 1 16SE1964 0.00393
1306 F 3 11CC1564 0.00832
1389 GS13 12HY1S67 0.00258
1558 GS 5 40C1S67 0.00396
1526 PC 1 2CSE1S67 0.00569
( 1404 HO 2 10MY1967 0.01270
46917 CH 12JA1946 0.00028
46920 CH 20DE1946 0.00062
469C6 CH MY1947 0.00133
46922 CH 21AU1947 0.00097
46764 EV 17JL1937 0.06446
46763 EV 23AU1937 0.08117
46767 EV 27CC1937 0.00774
1243 E 6 13JN1964 0.00209
1260 F 3 6JL1964 0.00191
1285 f 1 15SE1964 0.40766
1320 E 4 7N01S64 0.00207
1398 GS22 14PY1S67 0.00304
1564 GS12 50C1967 0.00165
1527 TR I 20SE1967 0.00629
1407 SK 2 14KY1967 0.00597
(46924 CH 10MY1S44 C.CC141
(46905 Ch JA1947 C. 00245
(46919 CH 5JN1947 C.OC152
(46758 EV 5JN1937 O.OC713
(46757 EV 25JL1937 C. 04814
(46765 EV 3.0AU1937 0.01115
(46768 f.V 16KR193E C.C5880
1246 F 3 11JN1964 0.00598
1270 f 1 10AU1964 C.C1C89
1304 F 1 110C1964 C.OC247
1388 GS12 12HY1967 C. 01207
1557 GS 4 30C1967 C.OC374
( 1574 6S22 6EC1967 C. 02013
1 1529 KM 1 20SE1967 C. 01199
1
Nitzsohia dissipata (Kiitz.) Grun.
Synedra dissipata Kutzing, Bacill., p. 64, pi. 14, fig. 3. 1844.
Nitzsohia dissipata (Kutz.) Grunow, Verb. Zool.-Bot. Ges. Wien, 12(2):17.
1862.
NIOISSIP TCT HO OF STJTIONS 178_
146921 CH 23N01945 0.00129
(46923 CH 22N01946 0.00656
(46916 CH 4HY1947 0.00034
(46922 CH 21AU1947 0.00048
146764 FV 17.111937 0.24174
(46763 EV 23AU1937 0.77110
(4*76? FV 18MR1938 0.02206
(46761 EV 27MY1938 O.OC273
1 1J2S C 6 15MY1964 0.00784
( 1228 0 2 14MY1S64 0.02141
1439 B 6 5JN1964 0.03397
1239 0 4 11JN1964 0.00116
1242 E 3 13JN1964 0.05395
1245 F 2 11JN1964 O.OC692
1441 B 6 24JL1964 0.00220
1256 E 2 14JL1964 0.02381
1259 f 2 6JL1964 0.00310
1264 C« 1 10AU1964 0.00386
1270 F 1 10AU1964 0.00272
1288 B 3 150C1964 0.00218
1300 E 3 13CC1964 0.02506
1304 F 1 11QC1964 0.00741
1315 0 5 9M01964 0.00910
1320 E 4 7ND1964 0.00207
1336 C 3 27JA1967 0.00193
1339 C 5 28MR1967 0.05612
1342 A 4 19AP1967 0.21475
1345 C 5 25AP1967 0.81867
1348 £ 5 23AP1S67 0.35093
1370 A 6 3MY1967 0.01151
1374 E 2 7WY1967 0.01494
1408 i" 3 23HY1967 O.OC894
1412 C 5 31HY1967 0.02525
1433 C 3 17JN1967 0.01292
1446 A 3 11JL1967 O.OC245
1452 E 2 14JL1967 0.00213
1509 C 5 2SE1967 0.00505
1533 A 4 19SE1967 0.00464
1541 E 2 110C1967 C.C1C64
1380 GS 4 9MY1967 0.01345
1383 GS 7 10MY1967 C. 02139
1387 GS11 12MY1967 0.01584
1393 GS17 13MY1967 0.01096
1397 G521 13MY1967 C. 00065
1557 GS 4 3DC1967 0.01868
1560 GS B 4DC1967 0.00472
1568 GS16 50C1967 0.00289
1544 NU 1 20CIS67 0.01430
1521 SH 1 18SE1967 0.02885
( 1526 HO 1 20SE1967 0.01138
( 1529 KW 1 20SE1967 0.02398
I 1551 ES 1 5nr.l967 0.02396
146514 CH 19AP1946 C. 00107
46SC5 CH JA1947 0.00245
469C6 CH HY1947 C. 00265
146758 EV 5JN1937 0.04279
46757 EV 25JL1937 0.04333
146752 EV 15SE1937 0.08707
46756 EV 27AP1938 0.00168
1223 B 3 18HV1964 0.00156
1226 C 7 16NY1964 0.00761
1229 0 5 14HY1964 C. 01903
1?3? E 5 16MV1964 0.12696
1236 C* 1 8JN1964 0.00175
1240 D 6 10JN1964 0.00767
1243 E 6 13JM964 0.00209
1246 F 3 11JN1964 0.01793
1251 C 7 16JL1964 0.00290
1257 E 3 14JL1964 0.11724
1260 F 3 6JU964 0.00764
1268 E 2 15AU1964 O.C0821
1280 E 2 16SE1964 0.00681
1445 8 6 140C1964 0.00326
1301 E 4 130C1964 0.00442
13C5 F 2 110C1964 C. 00518
1317 E 1 6N01964 0.00383
1322 E 6 7N01964 0.00333
1337 C 3 2MR1967 0.02058
1340 C 7 28PR1967 0.06835
1343 A 6 19AP1967 O.C2918
1346 C 7 21AP1967 0.07344
1368 A 3 4MY1S67 0.02513
1372 C 5 5MY1967 0.04965
1375 E 3 7HY1967 0.00481
[1410 A t 24MY1967 0.00564
1416 E 5 28PY1967 0.00656
1434 C 5 17JN1967 0.00299
1449 C 3 16JL1967 0.13757
1453 E 3 15JL1967 0.07330
1512 E 3 1SE1967 0.00393
1539 C 3 40C1967 0.01510
1378 GS 2 9HY1967 0.00421
1381 GS 5 10PY1967 0.01193
1384 GS 8 10PY1967 0.02588
1391 GS15 12KY1967 0.01437
1394 GS18 13MY1967 0.16170
1555 GS 2 3DC1967 0.00706
155B GS 5 40C1967 0.03567
1562 GS10 50C1967 0.00247
1570 GS18 50C1967 0.00992
1524 HI 20SE1567 0.02189
1522 BH 18SE1967 0.00547
1527 TR 20SE1967 0.04403
1530 FR 24SE1967 C. 03000
1550 MR 5CC1967 C. 26019
46924 CH 10NY1946 C. 00141
46909 CH MR1947 C.00911
46919 CH 5JM947 C. 34446
46743 EV 20JN1937 C.CC428
46747 EV 1AU1937 C. 01238
46767 EV 270C1937 C.OC387
46759 EV 19HY1938 C.OC338
1224 6 4 18NY1964 C.C1176
1227 C' 2 13MY1964 0.00768
1230 E 2 16MY1S64 C.C7400
1235 C 7 I6JN1<564 C. 00282
1238 0 3 11JN1964 C. 01800
1241 E 2 13 JN 1-364 G.C1626
1244 F 1UN1964 0.00658
1440 6 11JL1964 C.CC369
1255 0 15JL1964 0.00257
1256 F 6JL1964 C.CC708
1262 B 17AU1964 C. 00210
1269 E 15AU1964 0.01096
1285 F 15SE1964 C. 08153
1292 0 150C1964 C. 00373
1302 E 5 130C1964 C. 00810
1306 F 3 110C1964 C.OC277
1318 E 2 7N01964 C. 00761
1323 F 1 6MG1964 0.00418
1338 C 3 28MR1967 C. 16793
1341 A 3 19AP1967 C. 12909
1344 C 3 25AP1967 C.C1324
1347 E 2 23AP1967 C. 05652
1369 A 4 4HY1967 C. 01118
1373 C 7 5MY1961 C. 01141
1376 E 5 6HY1967 C. 04779
1411 C 3 3 IKY 1967 C.OC410
1432 A 4 13JN1961 O.CC511
1438 E 5 14JN1967 C.OC363
1450 C 5 16JL1967 0.03237
1454 E 5 15JL1967 C. 00200
1532 A 3 18SE1967 C.CC329
1540 C 5 40C1967 C.OC496
1379 GS 3 9MY1967 C.OC619
1382 CS 6 10HY1967 C. 00278
1386 GS10 12MY1967 C. 02585
1392 CS16 12HY1967 O.OC308
1395 «S19 13HY1967 C. 00822
1556 OS 3 3OC1961 C.CC521
1559 GS 7 4QC1967 C.OC350
1565 GS13 50C1967 C.OG507
1573 GS21 60C1967 C.OC112
15*6 I" 20C1967 C. 28510
1525 PH. 20SE1967 0.01393
1528 SB 20SE1967 C. 02888
1"5 VL 20C1967 1.S1362
1553 SG tons/,! C.OC7^4
148
-------
1428 KU 2 29MY1967 0.01808
1427 LU 2 29MY1967 0.06053
1399 PW 2 5MY1967 0.01360
1354 fitl_2 25AP1967 0.00173
1406 GB 2 13MY1967 0.00270
1424 KN 2 25CV1967 0.01332
1426 MS 2 29MY1967 C. 29396
1417 HO 2 22MY1967 0.033&5
1400 SB 2 6MY1967 0.02978
_ 1429 XL 2 29MY1967 0.02171
1405 ES 2 12MY1967 0.01290
1419 BU 2 23MY1967 0.01831
135» 'I 2 21AP1967 0.01241 )
1350 BH 2 1QA01QA? r *n*t. i
1352 KM 2 21AP1967 C.OC859 )
1403 CA 2 10MV19£7 f l«385 )
"4M CI 2 19AP1967 C.OC718 )
_1«3 HA 2 25MY1967 0.02997 1
Nitzsehia dissipata var. media (Hantz.) Grun.
Nitzsahia media Hantzsch, Hedwigia, 2:40, pi. 6, fig. 9. 1853.
Nitzsehia dissipata var. media Grunow in: Van Heurck, Syn. Diat.
p. 178, pi. 63, fig. 4. 1885.
Belaiaue
'
560 NIOISSVM TCT NC OF STATIONS 40
1565 GS 2 30C1967 0.00353 I
1565 GS13 50C1967 0.01014
1524 MI 1 20SE1967 0.04378
1522 BH 1 18SE1967 0.00182
1527 TR I 20SE1967 0.062H9
1531 GH 1 25SE1967 0.00845
1551 ES 1 50C1967 0.00799
1553 SG I 6QC1967 0.00734
1351 MI 2 21AP1967 0.00621
1418 SH 2 22HY1S67 0.03110
140Z TR 2 6HY1967 0.00541
1407 SM 2 14HY1967 0.01194
1423 HA 2 25MY1967 0.00428
46768 EV 16MR1S38 0.11760 "
1557 GS 4 30C1967 0.00374
1544 MU 1 20C1S67 0.00238
1546 LU 1 20C1967 C.020D1
1523 RA 1 19SE1967 0.04613
1529 KU 1 20SE1967 0.07195
1545 ML 1 20C1967 0.03379
1552 SM 1 6CC1967 0.01321
1428 MU 2 29MY1967 0.00603
1427 LU 2 29MY1967 0.01211
1350 BH 2 19AP1967 0.06388
1354 GH 2 25AP1967 0.01036
1349 CI 2 19AP1967 0.00359
I
1 1389 «S13 12MY1967 C. 00258 1
1547 MS 1 20C1967 C. 01597
1521 SH 1 18SE1967 C 02885
1526 Ml 1 20SC1967 0.03982
1530 FR 1 24SE1967 C. 01000
1548 CA 1 30C1967 C. 01272
1550 HR 1 SOC1967 C. 08673
1426 MS 2 29MV1967 C. 03150
1417 HO 2 22MY1967 0.00748
1401 MO 2 6MY1967 C.C1764
1403 CA 2 10MY1967 0.01308
1406 GB 2 13MY1967 C.OC270
Nitzsehia filifovmis (Wm. Smith) Schutt
Homoeooladia filiformis Wm. Smith, Syn. British Diat., Vol. 2, p. 80,
pi. 55. fig. 348. 1856.
Nitzsehia filiformis (Wm. Smith) Schutt in: Engler and Prantl, Natiirl.
Pflanzenfam., Teil 1, Abt. Ib, p. 144, figs. 261a-c. 1896.
561 NIFIL1FC TCT NO OF STATIONS 1
146909
MR1947 0.00455 ) (
Nitzsehia fontieola Grun.
Nitzsehia fontioola Grunow in: Van Heurck,
figs. 15-20. 1881.
Syn. Diat. Belgique, pi. 69,
56? MFDNTIC TCT NO OF STATIONS 104
(4*910 £H OC1945 0.00328
(46914 CH 19AP1946 0.00107
(46905 CH JA1947 0.00245
(46906 CH MY1947 0.00199
(46922 CH 21AU1947 O.OC291
(46770 £V 9JL1937 0.01789
(46747 EY 1AU1937 0.13862
(46752 EV 15SE1937 2.04615
(46744 EV 60C1937 0.03414
(46749 EV 12MR1938 0.03641
_I46751 EV 30MR1938 0.03350
(46761 EV 27MY1938 0.00545
J_J236 C' 1 8JN1964 0.00175
1241 E 2 13JIU964 0.00444
1245 F 2 11JN1964 0.00346
1264 C« 1 10AU1964 0.01545
-L1269 E 3 15AU1964 0.00274
1288 B 3 150C1964 0.00435
1299 E 2 12QCIS64 0.00943
1302 S. 5 13QC1964 0.00405
1318 f 2 7N01964 0.00190
1416 E 5 28MY1967 0.00219
1539 C 3 40CJ967 0.00503
1543 E 5 100C1967 0.01437
1389 GS13 12MY1967 0.00258
1558 GS 5 40C1967 0.00396
1563 GS11 5CC 1967 0.00234
1572 GS20 6DC1967 0.00180
1547 MS 1 20C1967 0.01597
1527 TR 1 20SE1967 0.01887
1545 WL 1 20C1967 1,18927
1552 SM 1 6DC1967 0.01321
1350 BH_2 19AP1967 0.03304
1354 GH 2 25AP1967 0.00345
1404 MO ? 10MY1967 O.C1270 I
I
1
1
i
(46921 CH 23N01945 C. 00259
(46924 CH 10MY1946 0.00071
(469C9 CH HR1947 0.00455
146919 CH 5JN1947 0.01973
(46758 EV 5JN1937 0.08915
(46764 EV 17JL1937 0.75745
(46763 EV 23AU1937 1.56250
(46760 EV 22SE1937 0.02462
(46748 EV 13CC1937 O.C8540
(46768 EV 16MR1538 0.13229
(46756 EV 27AP1938 0.00336
(46766 EV 14CE1938 C. 19011
1237 C1 2 .8JN1964 0.00258
1242 E 3 13JN1964 0.00300
1251 C 7 16JL1964 C. 00290
1265 C' 2 10DU1964 0.00447
1272 C1 1 10SE1964 0.00410
1295 C 4 150C1964 0.00595
1300 E 3 13GC1964 0.00716
1312 a 2 8ND1964 C. 00310
1320 E 4 7N01964 0.00620
1452 E 2 14JL1S67 0.00213
1541 E 2 110C1967 0.00532
1383 GS 7 10HY1967 0.00267
1554 GS 1 30C1967 0.01423
1559 GS 7 40C1967 0.00350
1565 GS13 50C1967 0.01521
1574 GS22 60C1967 0.00575
1546 LU 1 20C1967 0.31511
1529 KN 1 20SE1967 0.03598
1549 MO 1 40C1967 0.02741
1550 MR 1 50C1967 0.09912
1401 MC 2 6MY1967 0. 00588
1429 ML 2 29MY1967 0.05308
1407 SM 2 14MY1967 0.01194
1
(46915 CH 20FE1946 0.01707
(46923 CH 22N01946 C. 01748
(46916 CH 4MY1947 0.00102
(46907 CH JL1947 0.00148
(46743 EV 20JN1937 C.C1713
(46757 EV 25JL1937 0.26961
(46765 EV 30AU1937 C.CC558
(46750 EV 24SE1937 C. 08012
(46767 EV 270C1937 0.71951
146762 EV 18MR1938 1.49978
46759 EV 19MY193E O.OC338
1439 6 6 SJN1964 C. 00200
1240 D 6 10JM964 0.00153
1243 E 6 13JN1964 C.OC209
1256 E 2 14JL1964 0.00366
1268 E 2 13AU1964 C. 00547
1285 F 1 15SE1964 0.00582
1298 E 1 120C1964 O.OC539
1301 E 4 130C1964 0.00442
1315 D 5 9N01964 0.00455
1346 C 7 21AP1967 C.CC134
1511 E 2 1SE1965 C. 00307
1542 E 3 110C1967 C.00509
1387 CS11 12MY1967 C. 00792
1555 65 2 3OC1967 C. 00353
1560 GS 8 40C1967 0.00945
1571 GS19 60C1967 C. 00059
1544 NU 1 20C1967 0. 02859
1526 CO 1 20SE1967 0.01707
1530 FR 1 24SE1967 0.07001
1551 ES 1 50C1967 0.00799
1553 SG 1 6QC1967 C. 01469
1402 TR 2 6MY1967 C.00541
1403 CA 2 10MY1967 0.0261S )
149
-------
Nitzsohia fontioola var. pelagioa Hust.
Nitzsohia fontioola var. pelagioa Hustedt in: A. Schmidt, Atlas Diat.,
pl. 349, figs. 15-16. 1922.
S63 N1FONTVI» TOT HP Of STATIONS *
f-ff" -a-* SWUS44 Q.omTii . . ma MI, , .nr.^7 fl.nOMB 1 LOfifl BB_1 fSSiffi c'cim I
1 135° 8H 2 19AP19670.01101 I ( 1400 SB26I(Y19670.00596 ) (1*07 SN 2 14HY1967 C.C1194 I
Nitzsohia fontiooloides Sov.
Nitzsohia fontiooloides Sovereign, Trans. American Micr. Soc., 77(2)j!30,
pl. 4, figs. 58-62. 1958.
564 NIFCM'EC TOT NO OF STATIONS
146757 EV Z5JL1937 0.00481 ) ( 1387 GS11 12KY1S67 0.00396 I < 1575 6S2S 60CIS67 C.CC258 I
I t54« MU 1 20C1967 0.00477 I I 1545 Ml 1 20C1967 0.00676 » < 1550 I?R_1 MC1967 0.037J7 I
( 1400 SB 2 6HY1967 0.00596 I I 1403 C« 2 10NY1967 0.05231 ) I
flitzschia fruetulwn (KUtz.) Grun.
Synedra frustulwn Kiitzing, Bacill., p. 63, pl. 30, fig. 77. 1844.
Nitzsehia fmstulwn (KUtz.) Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):98. 1880.
"565 NIFRUSTO TOT HO OF STATIONS 4
| 1573 GS21 60C1967 0.00112 ) ( 1574 6S22 60C1967 0.00286 ) • 1417 HO 2 22HY1967 0.00374 I
I 1401 MO 2 6MY1967 C.OC5B8 ) (
Nitzsahia frustulwn var. pexminuta Grun.
Nitzsohia frustulum var. perminuta Grunow in: Van Heurck, Syn. Diat.
Belgique, pl. 68, fig. 31. 1881.
566 N1FRUSVP TOT KO OF STATIONS 7
I 1565 SSia 5QC1967 0.01014 ) I 1567 ES15 50C1967 C.00159 1 ( 1568 GS16 50C1967 C.OC144 )
( 1523 RA 1 19SE1967 0.00923 t ( 1553 SG 1 60C1967 0.01469 I I 1417 Ha 2 22MV1967 0.00748 )
I 1350 BH 2 19AP1967 0.03524 J !
Nitzsohia hungarioa Grun.
Nitzsohia Inwngarioa Grunow, Verb. Zool.-Bot. Ges. Wien, 12:568, pl. 18,
figs. 31a-b. 1862.
^« MMMMfita Tm NO OF STATIONS S
< 1264 r.i 1 10AU1964 0.00193 I ( 1504 A 3 28AU1967 C.00247 1 I 1556 6S 3 30C1967 0.00521 )
( 1567 GS15 50C1967 0.00159 ) ( 1417 HQ 2 22HY1967 0.00374 ) ( 1350 8H 2 19AP1967 C.OC220 I
I 1*01 KG 2 6HY1967 0,01764 ) I 1400 S8_2 6MY1967 0.00596 1 I 1422 Ct 2 ?3HT1967 O.O0511 >
Nitzsohia inseota Bust.
Nitzsohia inseota Hustedt, Internat. Rev. Hydrobiol., 42:141, fig. 348.
1942.
569 NI1NSECO TCT EC OF STATIONS 2
(46924 £H 10"*1946 0.00071 I 1 1572 GS20 60C1967 0.00090 I !
Nitzsohia interrupta (Reich.) Hust.
D$ntioula interrupta Reichelt ex Kuntze, Rev. Gen. Plant., 3:392. 1891.
Nitzsohia interrupta (Reich.) Hustedt, Arch. Hydrobiol., 18:168. 1927.
570 N1INTERR TCT NO OF STATIONS 1
146763 EV 23AU1937 0.02029 ) I
150
-------
Nitzsehia luzonensis Hust.
Nitzsohia lusonensis Hustedt, Internat. Rev. Hydrobiol., 42-137 figs
331-336. 1942.
L4691Q
46919
ttltf,
1268
1289
£H
CH
EV
E 2
C 7
OC1945
5JN1947
17JL1937
14DE193B
15AU1964
140C1964
50C1967
0.00109 1
0.00759 )
0.07252 )
0.01584 1
0.00547 )
0.00318 1
0.00440 1
0.00149 1
146921
146758
146757
1 1440
t 1275
( 1285
( 1302
1 1573
CH
CH
EV
EV
fi t
F 1
C 2
F 1
E 5
SS21
23NOIS45
19AP1946
5JN1937
25JL1937
11JL1964
6JL1964
17SE1964
15SE1964
130C1964
60C1967
C. 00065
0.00107
0.00357
0.00963
0.00236
C. 00645
0.005S2
0.00112
1 146917
I 146916
1 (46770
) 146767
) ( 1265
I ( 1445
) 1
CH
EV
EV
C' 2
8 6
4MV1947
270C1937
10AU1964
140C1964
C.OC068
C. 00387
C. 00224
C. 0065 2
Nitssahia mao-Llenta Grev.
Ifotssehia mac-i-lenta Greville,
8-9. 1859.
Quart. J. Micr. Sci., 7:83, pi. 6, figs.
572 NIMACILQ TOT NO OF STATIONS
(60973 CH 1876 0.02362
(46917 CH 12JA1946 0.00028
(46905 CH JA1947 0.00123
(46922 CH 21AU1947 0.00097
(46748 EV 130C1937 0.02135
1244 F 1 11JN1964 0.00110
1279 E 1 16SE1964 0.00393
1302 E 5 130C1964 0.00810
1306 F 3 110C1964 0.00832
1325 F 3 6NO1964 0.00504
1340 C 7 2BMR1967 0.00073
1346 C 7 21AP1967 0.00134
1374 E 2 7MY1967 0.00299
1437 E 3 15JN1967 0.00269
1377 OS 1 9MY1967 O.OC396
1384 GS 8 10MY1567 0.00185
1388 GS12 12MY1567 0.08446
1391 GS15 12MY1567 0.02873
1394 GS18 13MY1S67 0.02236
1397 GS21 13MY1567 0.00131
1559 GS 7 4DC1967 0.00350
1564 GS12 50C1967 0.00165
1567 GS15 50C1967 0.02699
1570 CSLB 50C1967 0.10508
1574 6S22 60C1967 0.00288
1527 TR 1 20SE1967 O.OC629
1551 ES 1 50C1967 0.00799
1553 SG 1 60C1967 0.01469
1407 SH 2 14MY1967 0.00597
I
1
3541 CH 1FE1881 0.07825
46923 CH 22N01946 0.00437
46SC6 CH MY1947 C.00066
46747 EV 1AU1937 0.00990
46749 EV 12MR1938 0.04855
1245 F 2 11JN1964 O.C0346
1285 F 1 15SE1964 0.01747
1304 F 1 11CC1964 0.01729
1323 F 1 6ND1964 C.C0697
1337 C 3 2HR1967 0.00441
1344 C 3 25AP1967 0.00165
1347 E 2 23AP1967 0.00325
1410 t 6 2.4HY1967 0.00564
1438 E 5 14JN1967 0.00363
1382 GS & 10MV1967 0.01110
13B5 GS 9 10HY1967 0.00471
1389 GS13 12HY1967 0.12634
1392 GS16 12HY1961 C. 04007
1395 GS19 13HY1967 0.00352
1398 GS22 14MY1961 0.01214
1561 GS 9 4CC1967 0.00587
1565 GS13 50C1961 0.00507
1568 GS16 50C1967 0.01299
1571 GS19 60C1967 0.00059
1515 GS28 60C1567 0.00258
1528 SB 1 20SE1967 0.01444
1552 SM 1 60C1967 0.01321
1426 MS 2 29MY1961 C. 01050
1406 GB 2 13HY1967 0.00270
46921 CH 23N01945 C. 00388
46920 Ch 200E1946 C. 00277
469C7 CH JL1947 C.CC148
46765 EV 30AU1937 O.OC558
46751 EV 30MR1936 C. 01117
1246 f 3 11JN1964 0.01195
1286 F 2 15SE1964 C.C1099
1305 F 2 110C1964 C. 00863
1324 F 2 6N01964 0.00466
1338 C 3 2BMR1967 C.OC132
1345 C 5 25AP1967 O.OC390
1348 E 5 23AP1967 C. 00274
1415 E 3 28KV1967 0.00225
1504 A 3 28AU1967 C. 00247
1383 GS 7 1GMY1967 C. 00267
1387 CSU 12MV1961 C.C1980
1390 GS14 12HV1967 C. 01174
1393 GS17 13CY1-561 C.C2192
1396 GS20 13MY1967 C. 00222
1558 CS 5 4CC1967 C.OC793
1563 GS11 50C1967 C.CC935
1566 GS14 5GC1967 C.OC917
1569 GS17 50C1967 C. 03122
1973 GS21 60C1961 C.CC112
1526 FD 1 20SE1967 C. 01707
1529 KM 1 ZOSE1967 C.C4797
1550 PR 1 50C1967 C. 01239
1404 KC 2 10MY1967 0.02541
Nitzsoh'ia pdtea (Kiitz.) Wm. Smith.
Synedra palea Kutzing, Bacill., p. 63, pi. 3, fig. 27, pi. 4, fig. 2. 1844.
Nitzsehia palea (Klltz.) Wm. Smith., Syn. British Diat., Vol. 2, p. 89. 1856.
573 NIPAIM TCT NC OF STATIONS 70
(46910 CH CC1945 0.00218
146915 CH 2QFF1946 0.00569
(46923 CH 22N01S46 0.00437
(4A010 f,H 5JN1947 0.00152
(46758 EV 5JM937 0.00357
IA£-7£.A CU 17JI1937 0.9C250
(46763 £V 23AU1937 0.08117
(46762 EV 18MP.1938 0.08822
( 126O F 3 6JL1964 0.00382
| 1454 f 5 15JL1967 O.OC200
f 1559 GS 7 40C1967 0.00350
I tcj-f. IM j ?f)f,1
-------
Nitzsohia palea var. sumatrana Hust.
Nitzsohia palea var. sumatrana Hustedt, Arch. Hydrobiol. Suppl. Bd., 15: ,
pi. 41, fig. 10. 1938.
575 NIPALEVS TOT NO Of STATIONS
f 1
6N01964 O.OCU9 )
Nitzsohia paleaoea Grun.
Nitzsehia paleaoea Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 68,
figs. 9-10. 1881.
S74 MPALEAC TC7 MO OF STATIONS
I 1544
20C1S67 0.02859 > I
Nitssohia parvula Wm. Smith
Nitzsohia parvula Wm. Smith, Syn. British Diat., Vol. 1, p. 41, pi. 13,
fig. 106. 1853.
576 NIPARVUL TCT NO Of ST
-------
1575 GS2B 6UC1967 0.00129
1520 HO 1 18SE1967 0.02829
1526 MO 1 20SE1967 0.01707
1545 ML 1 2DC1967 0.04054
1553 SG 1 60C1967 0.01469
1351 MI 2 21AP1967 0.01241
141B SH 2 22MY1967 0.04666
1399 PW 2 5KY1967 0.02040
1400 SB 2 6HY1967 0.01767
1429 ML 2 29MY1967 0.02123
1405 ES 2 12MY1S67 0.07095
1419 BU 2 23MY1967 0.05492
1422 GA 2 23MY1967 0.05109
1544 Mil 1 20C1967 C. 00477
1521 SH 1 18SE1967 0.05193
1527 TR 1 20SE1967 0.02516
1552 SM 1 60C1967 0.00660
1428 MU 2 29KY1967 0.00301
1427 LU 2 29MY1967 0.08475
1350 BH 2 19AP1967 0.02643
1401 MO 2 6HY1967 0.04116
1352 KM 2 21AP1967 0.02577
1403 CA 2 10PY1967 0.06539
1407 SM 2 14MY1967 0.04180
1420 1H 2 23HY1967 0.01511
1423 MA 2 25CY1967 0.09421
l'S46" LIT! 20C1967 0.01501
1522 BH 1 18SE1967 C. 01641
1528 SB 1 2CSE1967 C. 01444
1550 UK 1 50C1967 C. 16107
1426 fS 2 29MY1967 C. 05249
1417 HO 2 22MY1967 C.C2991
1425 DA 2 25MY1967 0.02652
1402 TR 2 6MY1567 C. 08122
1354 GH 2 25AP1967 0.01381
1404 HO, 2 10MY1967 C. 02541
1349 CI 2 19AP1967 C. 02155
1421 CH 2 23MY1967 0.01735
1424 KN 2 25MY1967 C. 01332
Nitzsehia romana Grun.
Nitzsehia romana Grunow in: Van Heurck, Syn. Diat.
figs. 12-13. 1881.
Belgique, pi. 69,
578 NIRCCANA TOT NO OF STATIONS 48
146917
146923
146747
1240
1440
1264
1275
1304
1320
1543
1555
1522
1529
1438
1350
1400
CH
CH
EV
0 6
B 6
C' 1
0 2
F 1
E 4
E 5
GS 2
BH 1
KM 1
MU 2
BH 2
SB 2
12JA1946
22N01946
1AU1937
10JN1964
11JL1964
10AU1964
17SE1964
110C1964
71*01964
100C1967
30C1967
1BSE1967
20SE1967
29MY1967
19AP1967
6MY1967
0.00082
0.00437
0.00248
0.00307
0.00369
0.02510
(46915
(46916
46767
1243
1258
1265
0.00645 ) 1279
0.00247 1 1307
0.00207 ) 1343
0.00718 I 1387
0.00353
0.00182
0.01199
0.00301
0.01762
0.00596
1559
1526
1531
1 1351
I 1401
I 1352
CH
CH
EV
E 6
f I
C' 2
E 1
B 6
A 6
GS11
GS 7
MO 1
GH 1
Ml 2
MO 2
KH 2
20FE1946
4MY1947
270C1937
13JN1964
6JL1964
10AU1964
USE1964
NO 1964
19AP1967
12HY1967
40C1967
20SE1967
25SE1967
21AP1967
6MY1967
21AP1967
0.00569 ) (46924
0.00034 I (46919
0.00387 ) ( 1230
0.00418 ) ( 1244
0.00236 1 ( 1260
0.00224 ) I 1266
0.00785 I ( 1265
0.00361 ) I 1308
C. 00069 1 ( 1536
0.00396 I 1398
0.00350
0.01707
0.00845
0.00310
0.01764
0.00859
( 1564
( 1527
( 1550
( 1417
( 1402
I 1407
CH
CH
E 2
F 1
F 3
D 3
F 1
C 7
E 2
GS22
GS12
TR 1
KR 1
hO 2
TR 2
SM 2
10HY1946
5JN1947
16MY1964
11JM964
6J11964
18AU1964
15SE1964
6N01964
24SE1961
14HY1967
SOC1967
20SE1967
50C1967
22MY1967
6MY1967
14HY1967
0.00141 1
C. 00303
0.00296
C.OC219
C.CC191
0.00351
C.C1165
0.00304
0.00273
0.00304
C.OC165
0.00629
C. 02476
C. 00748
C.OCS41
C. 01194
Nitzsehia sigmoidea (Nitz.) Wm. Smith
Bacillaria sigmoidea Nitzsch, Neue Schrift. Naturforsch. Ges. Halle,
3(1):104. 1817.
579 N1SIGMC1 TOT NO OF STATIONS 25_
1337 C 3 2MR1967 0.00147
1554 GS 1 3OC1967 0.00356
1569 GS17 50C1967 C.00149
1526 MO 1 20SE1967 0.01707
1530 FR 1 24SE1967 0.01000
1550 MR 1 50C1967 0.02478
1417 wn 1 22MY1967 0.00748
1401 HO 2 6MY1967 0.00588
1349 CI 2 19AP1967 0.00359
1341 A 3 19AP1967 0.00108
1565 GS13 50C1967 0.01014
1575 GS28 60C1967 0.00516
1527 TR 1 20SE1967 0.01258
1531 GH 1 25SE1967 0.00845
1553 SG 1 60C1967 0.00734
1418 SH 2 22KY1967 0.01555
1404 MO 2 10HY1967 0.02541
1396 6S20 13MY1967 C.OC222 )
1568 GS16 5CC1967 0.00144
1547 CS 1 20C1967 0.00798
1529 KH 1 20SE1967 0.01199
1552 SM 1 6CC1967 O.C0660
1428 MU 2 29MY1967 0.00301
1350 BH 2 19AP1961 C. 02843
1407 SM 2 14MY1967 0.01194
Nitzsehia sinuata var. tdbellaria (Grun.) Grun.
Dentioula tdbellaria Grunow, Verb. Zool.-Bot. Ges. Wien, 12:548. 1862.
Nitzsehia sinuata var. tabellaria (Grun.) Grunow in: Van Heurck, Syn.
Diat. Belgique, p. 176, pi. 60, figs. 12-13. 1885.
580 N1SINUVT TCT NC OF STATIONS 3_
24SE1967 0.01000 I I 1545 WL 1 20C1967 C.00676 » I 1550 CR 1 50C1967 0.01239 I
Nitzsohia spiouloides Hust.
Nitzsohia spieuloides Hustedt, Instit. Pares, Nat. Congo Beige, Expl. Pare
Nat. Albert, Mission Damas (1935-1936), Fasc. 8, p. 151, pi. 13, figs.
5-6. 1949.
I 1258
1 1300
1 1544
f 1
E 3
MU 1
130C1964
2DC1967
0.00944 )
0.00358 1
0.00477 1
{ 1259
( 1536
( 1522__
F 2
E 2
8H 1
6JL1964
24SE1967
18SE1967
C. 00930 1
0.00273 )
0.00365 )
( 1260
( 1380
I
f 3
6JL1964
O.OC191 )
Nitzsehia subacieularis Hust.
Nitzsehia subaeieularis Hustedt in: A. Schmidt, Atlas Diat., pi. 348,
fig. 76. 1922.
153
-------
iB3 _ NISACICU TCT NO OF ST«TICNS 1 _
I 1268 _ E i _ 15*U196* 0.0027* ) (
Nitzschia sublinearis Hust.
Nitzschia sublinearis Hustedt in: Pascher, Sussw.-Fl. Mitteleuropas,
Heft 10, Aufl. 2, p. 411, fig. 786. 1930.
561 _ NISLIKfa TCT HO DF STAT1CNS
I 1522 BH 1 _ 18SE1967 0.03100 ) I 1523 RA 1 _ 19SE1967 U. 00923 > I 1526 TO I _ 20&E1967 C.C3*1* I
I 1528 SB 1 20SE1967 0.08663 ) ( 15*5 WL 1 20C1967 0.33110 ) I 1550 Ht 1 SCC1967 0.03717 I
I 1417 HO 2 _ 22I*Y1S67 0.01122 1 I 1350 BH 2 _ 19AP1967 0.01762 I < 1*20 IH 2 __ Z3HY1967 C. 01511 )
Nitzschia thermalis (Ehr.) Auersw.
Pinnularia thermalie Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:21. 1843.
Nitsschia thewnaHs (Ehr.) Auerswald ex Rabenhorst^ Alg. Sachsens resp.
Mitteleuropas Exsicc., No. 1064. 1860.
564 NITHERMA TCT NO QF ST«TICNS 2 _ _
I I?fc4 C' 1 10AU196* 0.00193 I ( 1532 A 3 _ 18SE1967 0.00329 I _ L
Nitssohia tvo'loa Hust.
Nitzschia tropiaa Hustedt, Instit. Pares Nat. Congo Beige, Expl. Pare
Nat. Albert, Mission Damas (1935-1936), Fasc. 8, p. 147, pi. 11, figs.
34-48. 1949.
S85 NITROPIC TCT NO OF STATIONS 2
14676? EV 18MK1938 0.02206 I I 1258 f 1 6\fLl'i64 0.00236 ) 1
Nitsschia trybt'Lone-lla Hantz.
Nitzschia tryblionella Hantzsch ex Babenhorst, Alg. Sachsens resp. Mit-
teleuropas Exsicc., No. 984. 1860.
MITRYBLI TCT KC CF STATIONS
I 1SS2 SM 1 __ 60C1S67 _ 0.00660 I _ l_
Nitzsehia trybl-ionella var. debilis (Arnott) A. Mayer
Nitzsahia debil-is Arno-tt ex Grunow -in; Cleve and Grunow, K. Svenska
Vet. -Akad. Handl., Ny Poljd, 17(2):68. 1880.
Nitzschia tryblionella var. debilis (Arnott) A. Mayer, Ber. Naturw.
Ver. Regensburg, 14:295, pi. 16, fig. 16. 1913.
587 MTRmP TOT NB Of STATIONS 1 _
ttj _ 17JL1937 C.OC806 t 1
Nitzschia tryblionella var. levidensis (Wm. Smith) Grun.
Tryblionella levidensis Wm. Smith, Syn. British Diat. , Vol. 2, p. 89. 1856.
Nitzschia tryblionella var. levidensis (Wm. Smith) Grunov in: Cleve and
Grunow, K. Svenska Vet. -Akad. Handl., Ny Foljd, 17(2):70. 1880.
NITRYeVL TCT NO OF STATIONS
I 1556 65 3 __ 30C1967 0.00521 ) ) 1572 GS20 6DC1967 C.COC90 ) ( 1545 HI 1 __ 2CC1967 C.OC676 )
( 1A01 HO 2 6MY1967 0.0176A ) ( - -
154
-------
Species inoevtae sedis
Nitzschia sp. #1. (aff. N. lanoettula 0. Mull.)
589 NISPECCA TCT KG CF SUTlCNS T20~
(46910
(46915
(46909
146758
(46752
( 1225
I 1233
( 1243
I 1246
_iJ256
LJL2i>5_
( 1285
( 1290
( 1322
( 1339
1 1342
( 1347
C 1370
( 1374
1 1411
( 1433
( 1451
( 1536
( 1383
( 1386
1 1570
I 1526
I 1426
( 1425
1 140(1
( 1403
1 1422
CH
CH
CH
EV
ev
C 6
B 3
0 6
E 6
F 3
E 2
F 2
C' 2
E 2
f 1
C1 1
E 6
C 5
A 4
E 2
A 6
E 2
C 3
C 3
C 7
E 2
GS 7
G510
GS1B
HO 1
MS 2
RA 2
SB 2
CA 2
EA 2
OC1945
20FE1946
MR1947
5JN1937
15SE1937
270C1937
15MY1964
5JN2964
10JN1964
13JN1964
11JN1964
14JL1964
6JL1964
10AU1S64
15AU1964
15SE1964
160C1964
7N01964
26NR1967
19AP1967
23AP1967
3NY1967
7PY1967
31NY1967
17JN1S67
16JL1967
24SE1967
10HY1967
12MY1S67
50C1967
20SE1967
29MY1967
25MY1967
6MY1967
10MY1967
23HY1967
0.00546 1 <46«21
0.01707 I (46914
U.U0874 (46S20
0.00911 1 (46916
0.09863 t (46SC7
0.04636 1 (46771
0.01926 ) 146747
0.06530 1 (46760
0.00387 ) (46768
O.OC392 1 ( 1228
0.00593 ) ( 1231
0.00238 1 1 IJ^B
0.00153 1 1 1241
0.00418 ) [ 1244
0.01195 ) ( 1252
0.01282 ) 1 1J-57
0.00310
0.00224
0.02188
0.02912
0.00379
0.00333
0.04053
0.00180
0.00813
0.00230
O.OC598
O.OC410
0.00646
O.OC197
O.OC273
0.00802
0.00287
O.OC992
0.02845
0.01050
0.00834
0.01191
0.01308
0.01022
( 1260
. 1 1266
1 1269
< 1288
1 1300
( 1337
( 1340
( 1343
( 1348
( 1372
1 1375
( 1412
( 1436
( 1453
( 1542
I 1384
( 1387
< 1574
( 1527
( 1351
( 1399
( 1352
( 1407
( 1423
CH
CH
CH
CH
CH
EV
EV
EV
EV
0 2
E 3
0 3
E 2
F 1
C- 1
E 3
F 3
0 3
E 3
B 3
E 3
C 2
C 7
A 6
E 5
C 5
E 3
C 5
E 2
E 3
E 3
GS 8
GS11
6S22
TR 1
KI 2
PK 2
KM 2
SM 2
HA 2
23N01S45~
20CE1946
4HY1S47
JL1947
UJN1937
1AU1937
22SE1937
16HR1S38
14MY1?64
16MY1964
11JN1964
13JN1964
11JN1964
16JL1964
14JL1964
6JL1964
18AU1964
15AU1964
150C1964
13CC1964
2HR1967
28HR1967
19AP1967
23AP1967
5HY1967
7MY1967
31MY1967
15JM967
15JU967
11CC1967
10HY1967
12MY1967
60C1967
20SE1967
21AP1S67
5MY1967
21AP1S67
14HY1967
25HY1967
C.00194 ) (46917
C. 00031
0.00170
0.00099
0.00238
C. 00495
0.00492
O.C1470
0.00389
0.03180
O.C0400
0.00739
0.00837
0.00479
0.00573
0.00351
C.C1096
0.00218
C. 01790
0.00588
0.00291
0.0013S
0.02467
0.00355
0.01684
0.00642
0.00362
0.00506
0.00509
C. 00555
C. 00396
0.00288
0.01258
0.00621
0.00680
0.00859
(469C5
(469C6
(46922
(46764
[46763
(46744
(46762
1229
1232
1239
1242
1254
1258
1264
1267
1274
1445
1304
1338
1341
1345
1368
1373
1376
1416
1449
1512
1381
1385
1394
1546
1550
1417
1401
1353
0.00597 ) 1421
0.02141 ) 1424
CH
CH
.CH
EV
ev
EV
D 5
E 5
E 3
0 2
F 1
C' 1
D 6
0 1
B 6
F 1
C 3
A 3
C 5
A 3
C 7
E 5
E 5
C 3
E 3
GS 5
C-S 9
GS1B
LU 1
KR 1
hC 2
fO 2
FR 2
CH 2
KN 2
12JA1946
J«1S41
21AU1947
17JL1937
23AU1931
1BHP1938
14HY1964
16HY1964
1UN1S64
13JK1964
15JL1964
6JL1964
10AU1564
18AU1964
17SE1964
140C1964
110C1964
28MR1967
19AP1567
25AP1967
4HY1967
5MY1967
6HY1967
28CY1961
16JL1967
ylSE1967
10MV1967
10MY1967
13MY1967
2QC1967
50C1967
22MY1967
6MV1967
23AP1967
23MY1967
25MY1967
C.CC028 1
C. 00735 )
C.OC291 1
C. 04835
C.C2C29
C. 04411
C.OC423
C.C9218
C. 00116
C.OC749
C.CC383
C.C1888
C.OC579
C.OC216
C. 00469
C.CC652
C.00247
C. 00661
C.OC217
C. 02924
C. 00314
C.OC570
C.OC562
C.QC437
C.C1S29
C.OC393
C.OC477
C.OC235
C.OC172
C.OC500
C. 01239
C. 01669
C.CC588
C. 01055
C. 01735
C. 01332
Nitzsehia sp. #2.
-5M NISPECPB TrT Nn OF ST ATI ENS—258
(60973 CH 1876 0.070B5
( 3507 CH 19FE1881 0.03396
(46917 CH 12JA1946 0.30635
(46924 CH 10MY1946 0.09171
(•46905 CH JA1947 0.01716
(46916 CH 4HY1947 0.01391
(46907 CH JL1947 0.11785
(46771 EV HJN1937 0.66568
(46757 EV 25JL1937 0.00481
(46752 EV 15SE1937 0.02177
(46749 EV 12KR1S38 0.06069
146751 EV 30NR1938 0.04466
(46759 EV 19HY1938 0.05402
( 1223 B 3 18MY1964 0.00781
( 1226 C 7 16MY1964 0.17504
( 1229 D 5 14HY1964 0.21569
( 1232 E 5 16MY1964 0.30436
( 1235 C 7 16JN1964 0.00282
1 1237 C' 2 BJN1964 0.04640
( 1240 0 6 10JN1964 0.53688
( 1243 E' 6 13JN1964 0.22551
( 1246 F 3 11JN1964 0.05379
( 144Q p f. 11JI-1964 0.00737
( 1251 C 7 16JL1964 0.00579
( 1254 D 2 15JL1964 O.C344fl
| 1257 E 3 14JV1964 0.11485
( 1260 F * 6JL1964 0.02865
( 1268 E 2 15AU1964 O.OC274
(' 1778 0 6 18SE1964 0.00384
( 1284 E 6 17SE1964 O.OC635
( 1288 B 3 150C1964 0.01088
( 1291 C' 2 160C1964 0.00245
( 1301 E 4 130C1964 0.00442
, HM f t nnC1964 D. 01976
( 1307 B 6 N01964 0.01082
( 13J7 £ l 6N01964 0.00383
I {323 F 1 6N01964 0.01254
( 1339 c 5 28MR1967 0.60173
( I3«~ A 4 JOAP1967 0.42228
( 1345 C 5 25AP1967 C. 39569
( 1370 A 6 3MY1967 0.19105
I t«" r -, ,HV1967 0.3UM6
3540 CH 11KY1879 0.06523
46921 CH 23N01945 0.11576
146915 CH 20FE1946 0.09105
46923 CH 22MOI946 0.15736
(46909 CH WU947 0.12295
(46906 CH MY1947 0.41016
(46922 CH 21AU1947 0.07560
(46743 EV 20JN1937 0.37681
46747 EV 1AU1937 0.09902
46748 EV 130C1937 0,32024
46768 EV 16HR1S38 O.C7350
46772 EV 18AP1S38 0.01419
46761 EV 27MY1938 0.05178
1224 6 4 16MY1964 0.02745
1227 C1 2 13HY1964 0.01535
1230 E 2 16KY1964 0.15706
1233 B 3 5JN2964 0.03334
1439 B 6 5JN1964 0.05594
1238 0 3 11JN1964 C. 16600
1241 E 2 13JN1964 0.15081
1244 F 1 11JN1964 0.08443
1247 B 3 14J1.1964 C.OC427
1441 B 6 24JL1964 0.00441
1252 C' 1 16JL1964 0.00279
1255 0 5 15JL1964 0.00513
1258 F 1 6JL1964 0.08259
1261 B 3 2AU1964 0.00196
1269 E 3 154U1964 C. 01644
1279 E 1 16SE1964 C. 01571
1285 F 1 15SE1964 C. 14559
1«45 B 6 140C1964 0.00978
1293 0 2 150C1964 0.00472
1299 E 2 120C1964 0.00943
1302 E 5 130C1964 0.02834
,,05 F 2 11DC1964 C.C0690 J
1308 C 7 6N01964 0.00912
1 ms n 5 9ND1964 C. 00455 _
1318 £ 2 7N01964 C. 00190
132! E 5 7N01964 0.00319
1324 F 2 6N01964 C. 00466
1,37 C 3 2MR1967 0.12199
1340 C 7 28MR1967 0.15271
1343 A 6 19AP1S67 0.24316
1346 C 7 21AP1967 C.31245
iqffl A 3 4MY1967 0.73516
13"71 c 3 4MY1967 0.59098
1374 E 2 71Y1967 0.52301
3541 CH 1FE1881 C. 17607
469C8 CH OE1945 C. 05035
46914 CH 19AP1946 C. 52107
46920 CH 200E1946 0.02003
46912 CH AP1947 C. 05749
46919 CH 5JN1947 C. 12291
46758 EV 5JM937 1.29805
46764 EV 17JL1937 C. 12087
46763 EV 23AU1S37 C. 08117
46767 EV 270C1937 C. 03095
46762 EV 18HR193C C.C4411
46756 EV 27AP1938 C. 11753
46766 EV 14CE1938 C. 03169
1225 C 6 15MY1964 C.C5880
1228 D 2 14HY1964 0.32698
1231 £ 3 16MY1964 C. 94169
1234 8 3 18JN1964 C. 00281
1236 C' 1 8JN1964 0.05601
1239 0 4 11JM964 0.00696
1242 E 3 13JN1964 C. 20981
1245 F 2 11JM964 C. 06915
1248 B 3 24JL1964 C.CC394
1250 C 6 10JL1964 C.GC411
12S3 C1 2 16JL1964 0.01598
1256 E 2 14JL1964 C. 03297
1259 F 2 6JL1964 C. 05578
1264 C1 1 10AU1964 0.00193
1272 C' 1 1CSE1964 C. 01231
1281 E 3 16SE1964 C.OC785
1289 C 7 14DC1964 C.CC440
1300 E 3 130C1964 C.C3222
1303 E 6 13CC1964 C.C2239
1306 F 3 110C1964 C. 00832
1316 D 6 9NC1964 0.00378
1319 E 3 7NC1964 C.OC524
1322 E 6 7N01964 C. 04332
1338 C 3 2BMR1961 C. 61617
1344 C 3 25AP1967 C. 27794
1369 A 4 4MY1967 C. 27582
1375 '• 3 7HY1967 0.92639
155
-------
1 1376
1 1410
( 1413
1 1416_
1433
1436
1446
1451
1904
1511
1534
1541
1379
1382
1385
1368
1391
1394
1397
1557
1563
1567
1570
1573
1544
1921
1527
1530
1549
1550
1426
1417
1425
1402
1353
1403
1407
1419
1422
E 5
A 6
C 7
E 5
C 3
E 2
* 3
C 7
A 3
E 2
A 6
E 2
GS 3
GS 6
GS 9
GS12
GS15
GS18
GS21
GS 4
GS11
GS15
GS18
GS21
MU 1
SH 1
TR 1
FR 1
MO 1
MR 1
MS 2
HO 2
RA 2
TR 2
FR 2
CA 2
SH 2
BU 2
GA 2
6MY1967
24NY1967
25MY1967
28MY1967
17JN1967
15JN1967
1UL1967
16JL1967
28AU1967
1SE1967
19SE1967
lioc.1967
9MY1967
IOMY1967
10MY1967
12MY1967
12HY1967
13MY1967
13MY1967
30C1967
50C1967
50C1967
5DC1967
60C1967
20C1967
18SE1967
ZOSE1967
24SE1967
40C1967
50C1967
29MY1967
22MY1967
25HY1967
4MY1967
23AP1967
10MY1967
14MY1967
23MY1S67
23MY1967
0.51156
0.33266
0.13267
0.15308
0.41338
0.10494
0.00245
0.00197
0.00247
0.00307
0.00620
0.06499
0.11380
0.13892
0.25339
0.20112
1.02350
0.03859
0.01121
0.00701
O.OC953
0.01983
0.00224
0.00238
0.04616
0.01258
0.01000
0.02741
0.06195
0.97638
0.65799
0.22102
0.86636
0.04219
0.23539
0.08957
C. 43940
0.29122
1408
1411
1414
1431
1434
1437
1449
1452
1505
1512
1537
1380
1383
1386
1389.
1392
1395
1398
1560
1564
1568
1571
1574
1546
1522
1528
1531
1551
1553
1351
1418
1399
1400
1354
1404
1349
1420
1423
A 1
C 3
E 2
A 3
C 5
E 3
C 3
E 2
A 4
E 3
E 3
es 4
GS 7
GS10
GS13
GS16
GS19
GS22
GS 8
GS12
GS16
GS19
GS22
LU
BH
SB
GH 1
ES
SG
Ml 2
SH 2
Ph 2
SB 2
GH 2
MC 2
Cl 2
IH 2
MA 2
23MY196*
31MY1967
28MY1967
12JN1967
17JN1967
15JN1967
16JL1967
X4JL1967
28AU1967
1SE1967
24 SE 1967
SHV1967
9MY1967
10MY1967
12MY1967
12MY1967
12HY1967
13MY1967
14HY1967
40C1967
50C1967
50C1967
60C1967
60C1967
20C1967
18SE1967
20SE1967
25SE1967
50C1967
6GC1967
21AP1967
22MY1967
5MY1967
6MY1967
25AP1967
10MY1967
19AP1967
23MY1967
25MY1967
C. 20570 1
0.31592 1
0.05709 1
C. 02317 1
0.14356 )
0.07536 )
0.06496 )
0.00852 )
0.01031 1
0.00393 )
0.01294 )
0.18999 )
0.10762 )
0.08287 )
0.11204 )
0.10056 )
0.12636 )
O.C8690 1
0.21253 )
0.01417 )
0.00165 )
0.00289 )
0.00176 I
0.00288 )
0.03501 I
0.02188 )
0.02888 )
0.03381 1
0.02396 )
0.02203 )
C. 26067 1
0.07776 I
0.32644 )
0.30975 I
C. 08976 )
0.05081 1
0.74718 )
0.18127 1
1.43B79 )
14C9
1412
1415
1432
1435
1438
1450
1453
1508
1532
1538
1378
1381
1384
1387
1390
1393
1396
1554
1562
1565
1569
1572
1575
1520
1526
1529
1545
1552
1428
1427
1350
1401
1352
1429
1405
1406
1421
1424 '
A 4
C 5
E 3
A 4
C 7
E 5
C 5
E 3
C 3
A 3
E 5
GS 2
GS 5
GS 8
GS11
GS14
GS17
GS20
GS 1
GS10
GS13
GS17
GS20
GS28
HO 1
CO 1
KM 1
ML 1
SM 1
MU 2
LU 2
BH 2
MQ 2
KM 2
ML 2
ES 2
GB 2
CH 2
KN 2
23MY1967
31HY1967
28HY1967
13JK1967
13JN1967
14JN1967
16JL1967
15JL1967
2SE1967
18SE1967
23SE1967
9HY1967
10MY1961
IOMY1967
12MY1967
12MY1967
13MY1967
13KY1967
30C1967
50C1967
50C1967
5CC1967
6GC1967
60C1967
18SE1967
20SE1967
20SE1967
20C1967
60C1S61
29MY1967
29KY1967
19AP1967
6MY1367
21AP1967
29HY1967
12MY1967
13MY1967
23MY1961
25MY1967
0.04166 I
C. 38303 1
C. 15740 1
C. 22479 1
C. 11050 )
C. 12346 1
C. 00571 )
0.07330 )
C.C0400 t
0.00329 1
C. 00552 )
C. 11354 )
C. 15713 )
C. 24662 )
C. 34791 )
C. 01036 1
C. 02135 I
C. 00247 )
C. 00507 )
C. 01932 )
C. 00180 )
C.OC645 )
C. 01886 )
C. 06827 )
C. 15589 )
C. 02703 )
C. 06603 )
C. 07533 )
0.82324 )
C. 59911 )
C. 43509 1
C. 36076 1
C. 33974 )
C. 04515 )
C. 04044 )
C. 32963 )
C. 46629 )
Nitzsohia sp. #5.
591 NISPECQE TCT KG OF SMT1CNS
1 3540 CH 11MY1819 Oi.00466
146907 CH JL1947 0.00099
1253 C1 2 16JL1964 0.00456
1257 E 3 14JL1964 0.01914
1279 E I 16SE1964 0.00393
1374 E 2 7MY1967 0.02690
1412 C 5 31MY1967 0.01263
1433 C 3 17JN1967 0.00646
1447 A 4 HJL1967 0.00234
1453 E 3 15JL1967 0.00506
1379 GS 3 9MY1967 0.00619
1383 GS 7 10HY1967 0.03743
1386 GS10 12MY1S67 0.00862
1395 GS19 UMY1967 0.00587
1555 GS 2 30C1967 0.00353
1521 SH 1 18SE1967 0.00577
1428 MU 2 29MY1967 0.00301
1427 LU 2 29MY1967 0.01211
1399 PM 2 5MY1967 0.00680
1354 GH 2 25AP1967 0.01726
1404 fO 2 10MY1967 O.C127C
46SC9 CH MR 194 7 0.00455
46747 EV 1AU1937 0.0024S
1254 D 2 15JL1964 0.00958
1258 F 1 6JL1964 0.00236
1287 F 3 15SE1964 0.00500
1375 __ E 3 7MY1967 0.01203
1414 E 2 28MY1967 0.00336
1436 E 2 15JN1967 0.00362
1450 C 5 16JL1967 0.00190
1511 E 2 1SE1967 0.00307
1380 GS 4 9MY1967 0.00336
1384 GS 8 10MY1967 0.05176
1392 GS16 12MY1967 0.01233
1397 GS21 13MY1967 0.00131
1560 GS 8 4QC1967 0.00472
1552 SM 1 60C1967 0.01981
1426 MS 2 29MY1967 0.03150
1417 HO 2 22MY1967 0.01122
1352 KM 2 21AP1967 0.02577
1429 ML 2 29MY1967 0.03185
46906 CH MY1941 C.OC465 I
46752 EV 15SE1937 C. 02177 )
1256 E 2 14JL1964 C.CC916 )
1260 F 3 6J11964 O.OC764 )
1445 B 6 140C1964 0.00652 )
1376 E 5 6MY1967 C.OC843 )
1432 A 4 13JN1967 C. 01022 1
1446 .A 3 11JL1967 C. 00489 )
1452 E 2 14JL1967 C.CC639 )
1512 E 3 1SE1967 C. 01571 )
1381 GS 5 10MY1967 C.OC954 )
1385 GS 9 10MY1967 C. 00235 )
1394 GS18 13CY1967 C. 05333 )
1398 GS22 14MY1967 C. 00304 1
1544 HU 1 2CC1967 £.00238 )
1550 KR 1 5QC1967 0.02478 )
1351 KI 2 21AP1967 C. 00621 )
1350 BH 2 19AP1967 C. 00441 )
1353 FR 2 23AP1967 C. 01055 1
1403 CA 2 10MY1967 C. 15692 )
Nitzsahia sp. #6.
592 NISPECOF TCT NG OF STATIONS 65
146924CH10MY1946O.OCC71
(46758
EV
5JK1937 0.00357 I (46764
EV
17JL1937 C.C2417 )
1 17J>4 B 4 18MY1964 0.00196
( 1243 E 6 13JM964 0.00209
I 1260 F 3 6JL1964 O.OC191
( 1337 C 3 2MR1S67 0.00441
1 1340 C 7 28MR1967 O.OC654
I 1343 A 6 19AP1967 0.00417
1 1346 C 7 21AP1967 O.OC267
( 1368 A 3 4HY1967 0.05655
( 137? C 5 5MY1967 0.04611
( 1375 E 3 7MY1967 0.01203
I 14.3J C 3 17JN1967 0.00646
( 1512 E 3 1SE1967 O.OC393
1 1382 GS 6 10MY1967 0.02220
( 1386 GS10 12MY1967 0.00575
( }557 GS 4 30C1967 0.00374
I 1528 SB 1 20SE1967 0.015144
1 1550 KR 1 50C1967 0.01239
( 1351 MI 2 21AP1967 0.00310
( 1401 MO 2 6MY1967 0.01176
( 1354 GH 2 25AP1967 0.02244
1 1422 GA 2 23MY1967 0.00511
1231 f 1 16MY1544 O.OOJ45
1257 E 3 14JL1964 0.00239
1268 E 2 15AU1964 C. 00274
1338 C 3 28MR1967 0.10975
1341 A 3 19AP1967 0.01627
1344 C 3 25AP1967 C. 00496
1547 E 2 23AP1967 0.03577
1369 A 4 4MY1967 C. 00745
1273 C 1 5MY1967 0.00285
1376 E 5 6KY1S67 0.01405
1434 C 5 17JN1967 0.00598
1379 GS 3 9MY1967 C. 00309
1383 GS 7 10MY1967 0.00267
1387 GS11 12MY1967 0.00396
1562 GS10 50C1967 0.00247
1545 WL 1 20C1567 0.01351
1428 MU 2 29MY1967 0.00301
1427 Lt 2 29MY1967 0.02421
1402 IR 2 6MY1967 C. 00541
1403 CA 2 10MY1967 C. 01308
1423 K« 2 25MY1967 0.02141
)
I
1
1439 8 6 5JN1S64 fl.00200 1
1258 F 1 6JL1964 C. 00236
1269 E 3 15AU1964 0.00274
1339 C 5 2BMR1967 C. 02806
1342 A 4 19AP1967 C. 21475
1345 C 5 25AP1967 C. 30018
1348 E 5 23AP1967 C. 21110
1370 A 6 3MY1967 0.01381
1374 E 2 7MY1961 C. 02092
1*12 C 5 31MY1967 C.C1684
1511 E 2 1SE1967 r.r.r.im
1380 GS 4 9MY1967 C.CC168
1384. GS e 10MY1967 C.CC370
1394 GS18 13MY1967 0.00344
1566 GS14 5CC1967 C. 00183
1551 ES 1 50C1967 C.CC799
1426 fS 2 29MY1967. C 01050
1417 I'D 2 22MY1967 C.1C842
1400 SB 2 6HY1967 C. 01191
1 1349 CI 2 19AP1967 C. 01796
156
-------
Nitzsahia sp. #7.
U6758
1274
1572
1521
1531
1549
1 1417
1 140*
EV
D 1
GS20
SH 1
GH 1
HO 1
hQ 2
PO 2
.. 5JN1937.
17SE1964
6CC1967
18SE1967
25SE1967
4CC1967
22MY1967
1CMY1967
.Q,0035T_J__ . 116747.,
0.00469 ) 1279
_O.Qfl09C ._!.._- 1544 _
0.02885 ) 1526
0.00845 1 1545
0.01370 I 1552
0.0074B I ( 1354
0.02541 1 1
ev
E 1
MO 1
kL 1
SM 1
GH 2
4*ui2a!_
16SE1964
20C1967
20SE1967
2CC1967
60C1967
25AP1967
0.00248 ) 1266
0.00393
C. 02859
0.00569
6.91939
0.00660
0.00173
1556
1546
1530
1548
1550
1429
E 2
GS 3
FR 1
CA 1
« 1
hL 2
15AU1964
30C1967
24SE1S67
5CC1967
C.CC274
C.OC521
_ C.285JUI
c.ctooi
C.C7434
Nitzsehia sp. #8.
594 MSPECCH TCT KO OF STMICNS
(46752EVT5SE1937
( 12i5 t_.l
( 14C3 CA 2
O.C2177 ) ( 1270 F 1
0.d)2SU2_l L.1554 _GS_J
10MY1967 C.01308 I (
10AU1964
30C1967
0.00272" )
0.00356 )
( 1275 0 2
(1546 LU 1
17SE1964
_ 20C1967
C.CC645 ]
..C..0.2001 I
Nitzsohia sp. #9.
595 NISPECCI TCT ISC Cf STiTICNS 3
( 1340 C 7 Z8M(ii«67' "oTo0073~V (
Nitzsohia sp. #10.
194P1967 C.C0108 I I 1536
24SE1S6T C.CC545 )
596 NISPECOJ TCT NO DF SWICKS 1
t 1250 C 6 10JL1964 O.CC411 ) (
Nitzschia sp.
597 NISPECOK TCI NC OF STATIONS 2
( 1272 C' 1 1CSE1964 0.00410 I ( 1550 CR 1
5CC1967 C.C1239 ) f
Nitzsehia sp. #12.
S98 NISPECOL TOT NO OF STATIONS
1550 MR 1
1*BA HO 2
50C1967 0.03717 I I 1426 MS 2
10HY19A7 0.01270 ) _ ! _
29MY1967 0.01050 ) ( 1350
19AP1967 C.00661 1
flitzsehia sp. #14.
599 NISPF.CDN TCT NO OF ST/TIOHS 1
I 1511 E 2 ISE1967 0.00307 1 L
Nitzsehia sp. #15.
-MS MSPECCO TOT HO DF STATIONS 4
.1 1544 MU 1
20C1967 0.01668 1 I 1546 LU
2CC1967 C.03001 I I 1550 HR 1
50C1967 0.02478 I
I 1428 HU 2
29HV1967 0.01205 ) (
Nitzschia sp. #16.
601 N1SPECOP TOT NC OF STATIONS
( 1544
I 1545
MU 1
HI 1
20C1967 O.O0715 I 1 1546 LU 1
>OC1967 0.03379 » (
20C1967 C.00500 I i 1529
Nitzsohia sp. #17
603 NISPECdO T(1T HP Of STAT1CHS - 1
0.02501 I
157
-------
Nitzschia sp. #18.
•603 MSPECOB tm NO OF STATIONS
I 1522
BH 1
18SE1967 C.10029 > I 1550
MR 1
50C1967 0.01239 I
Genus Opephora Petit
Petit, Miss. Sci. Cap Horn, 1882-1883, Bot., Vol. 5, p. 130. 1888.
Members of the genus Opephora find their primary habitat in periphyton
communities. Occasional specimens are taken in plankton collections from
Lake Michigan, especially in nearshore areas.
Opephora ansata Hohn and Hellerm.
Opephora ansata Hohn and Hellerman, Trans.
321, pi. 1, fig. 13, 1963.
American Micr. Soc., 82(3):
606 OPSPEC06 TOT KC OF STAT1CKS 37
160973 CH 1876 0.04724
146915 CH 20FE1946 0.00569
146922 CH 21AU1947 0.00091
(46757 EV 2SJL1937 0.01926
146752 EV 15SE1937 0.17414
146748 EV 130C1937 0.064C5
146768 EV 16MR193B 0.05880
1264 C< 1 10AU1964 0.00193
1303 E 6 130C1964 0.00560
1541 E 2 110C1967 0.01597
1392 GS16 12HY1567 0.00616
1567 GS15 50C1967 0.00318
1575 GS28 6QC1967 O.OC129
3541 CH 1FE1881 0.00978
46924 CH 10HY1946 0.00071
46758 EV 5JN1937 0.02853
46747 EV 1AU1937 0.01733
46760 EV 22SE1937 0.00985
46767 EV 27CC1937 0.02708
46762 EV 18MR1938 0.17644
1279 E I 16SE1964 0.00393
1340 C 7 28HR1961 0.00218
1543 E 5 100C1967 0.01437
1394 GS18 13PY1967 0.00344
1571 GS19 60C1967 C. 00059'
(46921 CH 23NC1945 C.CCC65
46916 CH 4MY1947 C. 00034
(46764 EV 17JL1931 C.CC806
146763 EV 23AU1937 C. 34497
146744 EV 60C1S37 C.OC975
146749 EV 12MR1938 C. 02427
(4675S EV 19KV1938 0.01013
1285 f 1 15SE1964 C.C1165
1538 E 5 23SE1967 C.08286
1368 GS12 12NY1967 C. 00603
1398 6S22 14HY1967 C.CC607 I
1574 G522 6QC1967 3.62423 )
Opephora martyi Herib.
Opephora marty-i H6ribaud, Diat. Foss. Auvergne, Vol. 1, p . 43, pi. 8,
fig. 20. 1902.
604 OPMJRTVI TOT KC OF STATIONS
3540 CH 11MY1879 0.00466
1279 E 1 16SE1964 0.08639
1297 D 6 140C1964 0.00190
1532 A 3 18SE1967 0.00329
11fl« CS1? 12MY1967 0.01207
1396 GS20 13NY1967 0.00074
1558 CS 5 40C1967 0.00396
1569 GS17 50C1967 0.00149
1574 CS22 60C1967 0.01438
1547 MS 1 20C1967 0.01597
1571 SH 1 18SE1967 0.02308
1526 HO 1 20SE1967 0.00569
I5SO MR 1 5DC1967 0.28497
1427 LU 2 29HY1967 0.04843
1354 GH 2 25AP1967 0.00518
1349 Cl 2 19AP1967 0.00359
46916 CH 4MY1947 C. 00034
1284 E 6 17SE1964 C. 00318
1320 E 4 7N01964 0.00207
1533 A 4 19SE1967 0.00464
1390 GS14 12MY1967 0.00587
1554 GS 1 30C1967 0.00356
1565 GS13 50C1967 C. 07099
1571 GS19 60C1967 0.00176
1575 GS28 tOC 196 7 0.00129
1546 LU 1 20C1967 0.01501
1522 BH 1 18SE1967 D. 00182
1531 GH 1 25SE1967 f. 01691
1553 SG 1 60C1967 0.00734
1417 HO 2 22MY1967 0.00374
1404 MO 2 10HY1967 6.05081
1406 GB 2 13MY1967 0.00539
46768 EV 16NR193e C.C2940
1285 F 1 15SE1964 0.00582
137Z C 5 5MY1967 C.OC35S
1377 OS 1 9HY1967 C.CC396
1392 GS16 . 12HY1967 0.00925
1557 GS 4 30C1967 C.0074T
1567 GS15 SOC1967 C.0063S
1572 CS20 60C1967 C. 00270
1544 KU 1 20C1967 C. 00238
1520 HO 1 18SE1967 C. 02357
1525 CM 1 2CSE1967 0.01393
1545 ML 1 20C1967 C. 00676
1426 CS 2 29MY1967 0.04199
1350 8H 2 19AP1967 C.C1762
1407 SH 2 14MY1967 C. 01194
Opephora sp. #1.
Species inoertae sedis
605 OPSPECOA TOT NC OF S1ATICNS
146923
I 1350
CH
BH 2
22N01946
19AP1967
0.00219 I
0.00441 I
15SE1964 0.00582 I I 1565
GS13
SOC1967 C.OCS07 )
Opephora sp. #2.
A07 OPSPECCC TCT MO OF STAT1CMS
I 1565
GS13
5CC1967 0.00507 ) ( 1571
GS19
6OC1967 0.00293
I 1573
6S21
6CC1967 C.00112 I
1546
1550
LU 1
MR 1
20C1967
50C1967
O.C0500 )
0.28497 )
1522
I 1553
BH 1
SG 1
18SE1967
tOC1967
0.00182 I
0.00734 1
( 1545
( 1350
hL 1
_BH_2_
20C1961
19AP1967
C.00676 )
0.01982 I
158
-------
Genus Oestrupia Held.
Heiden ex Hustedt, Ber. Deutsch. Bot. Ges., 53(1):16. 1935.
Although the growth habit of the freshwater members of the genus
Oestrupia is poorly known, the limited information available indicates that
they are most often found in benthic communities. The entities known from
Lake Michigan are rare in plankton collections and those noted usually come
from nearshore localities.
Oestrupia zachariasi (Reich.) comb. nov.
Navioula (Caloneis) zaohariasi Reichelt, Forshungsber. Biol. Sta Plon
14:199. 1903.
gEZACHAR TCT NO M STATIONS
-L-156S - QS13 - 5CC1967 _ C-OlOl* 1 1 1521 SH 1 _ 18SE1967 0.00577 1 I 1545 M. 1 __ 20C19t7 C. 04054 1
Oestrupia. zaohaviasi var. undutata (Schulz) comb. nov.
Caloneis baltioa var. undulata Schulz, Bot. Arch., 13:203, fig. 76. 1926.
tog OEZACHVU TOT. MO OF SKTICMS 7 _
14*315 _ CH _ 20FEM46- _ O.M5CT- I I 1?T9 E I _ 16SE1964 0.00393 I ( 1396 ES22 __ 14MY1961
I 1565 GS13 50C1967 0.01521 ) I 1574 GS22 60C1967 0.00288 ) ( 1546 LU I 2DC1967 C.C100C >
I 1577 TB 1 _ 20SE1967 0.00629 1 I __
Genus Pinnulapia Ehr. nom. cons.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1843:45. 1843.
Most species of the genus Pinnularia find their primary habitat in ben-
thic communities. The rare representatives of the genus that are taken in
plankton collections from Lake Michigan are undoubtedly derived from such
communities within the lake or from sources outside the lake proper.
Pinnular-ia abaujensis (Pant.) Ross
Navioula abaujensis Pantocsek, Beitr. Foss. Bacill. Ungarns, Theil 2,
p. 41, pi. 3, fig. 54. 1889.
Pirawlar-La abaujens-is (Pant.) Ross, Natl. Mus. Canada Bull., 97(2) :199,
pi. 10, fig. 10 1947.
Coll: 1800.
Pimtularia abaugensis var. linearis (Rust.) Patr.
Pirmular-La gibba var. linearis Hustedt in: Pascher, Sussw.-Fl. Mittel-
europas, Heft 10, Aufl. 2, p. 327, fig. 604. 1930.
Coll: 1800.
Pirmulavia aerosphaeria Win. Smith
Pirmularia aerosphaer-ia Wm. Smith, Syn. British Diat., Vol. 1, p. 58,
pi, 19, fig. 183. 1853.
Coll: 1818.
Pimulavla bie&ps Greg.
Pinnularia biceps Gregory, Quart. J. Mict. Sci., 4:8, pi. 1, fig. 28.
1856.
159
-------
6IC P1BICEPS TCT tic OF STATIONS i _
I - 1150 _ B1L-2 _ 19AP1967 O.OC22C t 1
Pinnularia bioeps f o . petersenii Ross
Pinnularia interrupta fo. minor Peterson, Bot. Iceland, Vol. 2, Pt. 2,
p. 405, fig. 25. 1928.
Pinnularia bioeps fo. petersenii Ross, Natl. Mus. Canada Bull.,
pi. 9, fig. 11. 1947.
All PIBIf.FFP TOT NO OF STATIONS 1 _
-I . -UD4 _ BSL2 __ 10HY1967 _ 0.01Z70 ) t
Pinnularia borealis Ehr.
Pinnularia borealis Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:420,
pi. 1(2), fig. 6. 1843.
612 PIBCREAL TOT NO OF SUT10HS 1 _
I 1395 _ £il3 _ 13HV1367 0.00117 1 C
Pinnulcacia brebissonii (Kxltz.) Rabh.
Navieula brebissonii KUtzing, Bacill., p. 93, pi. 3, fig. 49. 1844.
Pinnularia brebissionii (Ktttz.) Rabenhorst, Fl. Europaea Alg., Sect. 1,
p. 222. 1864.
613 P1BBCBIS TOT HP OF STATIONS 5
_ QH _ 20DE1946 0.00031 I 1^6^16 CH _ 4HT1947 0.0003^ 1 (^t7t4 EV __ 17JU937 O.OC806 I
146759 EV 19MY1938 0.00338 ) I 1423 WA 2 25MY 19^-7 0.00428 ) (
Pinnularia burkii Patr.
Pimularia burkii Patrick, Farlowia, 2(2):189, .pi. 3, fig. 1. 1945.
614 PIBURKII IOT NO CF STATIONS 1
< 1354 cFl 25*P1967 0.00173 "
Pinnularia globioeps var. krookii (Grun.) Cleve
Navieula krockii Grunow in: Mojsisovics and Neumayer, Beitr. Palaontol.
ftsterreich-Ungarns, Bd. 2, Heft 4, p. 155, pi. 30, fig. 40. 1882.
Pinnularia globieeps var. krockii (Grun.) Cleve, K. Svenska Vet.-Akad.
Handl., Ny FBljd, 27(3):77. 1895.
615 PIGICBVK TCT NO OF STATIONS 1
< 13B<> GS13 12HY1«67 0.0025J 1 T
Pinnularia inberrupta var. orassior (Grun.) Cleve
Navieula globioeps var. Grassier Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):27, pi. 1, fig. 13. 1880.
Pinnularia inberrupta var. orassior (Grun.) Cleve, K, Svenska Vet.-Akad.
Handl., Ny FBljd, 27(3):76. 1895.
616 PIINTEVC TGT NO OF STATIONS 3 ~
I 1388 GS12 12KY1967 0.00603 ) I 1389 GSU 12MY1967 0.00258 • I 1417 iJO~~2 22HYlS6T C.OC3T4 )
160
-------
Pinnularia legumen (Ehr.) Ehr.
Navicula legumen Ehrenberg, Ber. Akad. Wiss. Berlin, 1841:141. 1841.
Pinnularia legumen (Ehr.) Ehrenberg, Phys. Abh. Akad. Wiss. Berlin,
1841:301, pi. 4(1), fig. 7. 1843.
617 PUEGl'HE TOT NO OF STATIONS I
I 1*04i
-------
61? PIVIRIDI TCT NO OF STATIONS
1FE1861 0.01956 ) (
GS14
12MV1967 C.00587 ) (
Genus Rhizosolenia Ehr.
Ehrenberg, Abh. Akad. Wiss. Berlin, 1841:134. 1843.
All known members of the genus Kkizosolenia are euplanktonic. Most of
its members are marine, however the following species are found only in fresh
water and are widely reported from the Great Lakes.
Eh-izosolen-La eriensis H. L. Smith
Rhi-zosoleni-a eriensis H. L. Smith, The Lens, 1:44. 1872.
Cells bacilliform with a single conspicuous spine at each end. Valves
much reduced, appearing as a cap at the end of the cells. Cells elongated in
the pervalvar axis and laterally compressed. Specimens from Lake Michigan
35-150y long, 10-25p broad in greatest diameter, only 2-4y in least diameter.
Because of the construction of the frustule, specimens are almost always
observed in girdle view. Intercalary bands numerous, constructed in the form
of a split-ring with cuneate ends so that the ends of the "ring" overlap one
side of its own opposite end and one side of the next successive intercalary
band. The line of imbrication of the intercalary bands is in the median of
the long axis of the cell and is quite conspicuous. The frustule is very
lightly silicified and is usually destroyed by standard diatom cleaning pro-
cedures. In living cells the chromatophores occur near the center of the
cell. The end spines are excentric and usually occur on opposite sides of
the ends of the cells.
This species is common in plankton collections from Lake Michigan,
usually reaching its maximum abundance in the late spring or early fall.
622 RHERIENS TCT NO OF STAT[CHS 252
(60973 CH 1876 0.87388
(46908 CH DE1945 0.03021
(46914 CH 19AP1946 O.OC320
J46920 CH 200E1946 0.00031
(46916 CH 4MY1947 0.35286
144907 C.H JL1947 0.04586
(46771 EV 11JN1937 4.65979
(46757 f\l 25JL1937 0.01444
146765 EV 30AU1937 0. 02789
(46744 EV 60C1937 0.01463
(46749 EV 12HR1938 0.18206
(4*751 ev 30MR193B 0.35730
(46759 EV 1SPY1938 1.60702
( 1224 B 4 18MY1964 0.00196
( 1227 C1 2 13MY1S64 0.00219
1230 f 2 16MY1964 0.01185
1233 8 3 5JN2964 0.03096
1439 B 6 5JN1964 0.76923
1238 D 3 11JN1964 0.02800
1242 E 3 13JN1S64 O.OC749
1245 F 2 11JN1964 0.01729
1748 B 3 24JL1964 0.68968
1249 C 3 6JL1964 0.01358
us? r.i 1 16JL1964 0.53835
1255 D 5 15JL1964 5.21020
1258 F 1 6JL1964 1.98221
1261 6 3 2AU1564 0.01766
14*3 B 6 16AU1964 0.01581
1266 0 3 16AU1964 4.91090
I7AO F 3 15AU1964 C. 29600
1271 C 7 22SE1964 0.02611
1774 n 1 17SE1964 0.02815
1277 0 4 18SE1964 0.02479
1280 F ? 16SE1964 0.04085
1283 E 5 16SE1964 0.25745
< 1?«* f_? 15SE1964 0.16419
1445 B 6 14OC1964 0.68493
1791 C' 2 160C1564 0.01468
<
3541 CH 1FE1881 0.00978
46917 CH 12JA1946 0.04186
46524 CH 10MY1946 0.22927
46SC5 CH JA1947 0.01471
46SC6 CH MY1947 1.55304
46522 CH 21AU1947 0.00242
46143 EV 20JM937 0. 19697
46747 EV 1AU1937 0.01238
46160 EV 22SE1937 0.01970
46748 EV 130C1937 0.04270
46768 EV UMR1938 0.23519
46772 EV 18AP1938 0.11356
46761 EV 27MY153S 0.99204
1225 C 6 15HY1964 0.01568
1228 D 2 14HY1564 0.00584
1231 E 3 16HY1964 C. 01712
1234 B 3 18JN1964 0.98403
1236 C' 1 8JN1964 0.00875
1240 0 6 IOJN1964 0.05215
1243 E 6 13JN1964 0.32156
1246 F 3 11JN1964 0.04183
1440 E 6 1UL1964 4.38516
1250 C 6 10JL1964 1.62795
1253 C1 2 16JL1964 C. 08673
1256 E 2 14JL1964 1.79527
1259 F 2 6JL1964 2.16906
1262 B 3 17AU1964 0.03780
1264 C> 1 10AU1964 C. 07916
1267 0 t 18AU1964 O.C2810
1270 F 1 10AU1944 0.10619
1272 C' 1 10SE1964 0.00821
1275 0 2 17SE1964 0.2645O
1278 D 6 18SE1964 C. 01153
1281 E 3 16SE1964 0.11380
1284 E 6 17SE1564 C. 26372
1287 F 3 15SE1964 0.32026
1289 C 7 140C1564 C. 80032
1292 D 1 i50£19fc4 0.23852
(
<
(
{
(
(
1
I
1
1
(
46921 CH 23N01945 C.CG388
46915 CH 20FE1946 0.17641
46923 CH 22N01S4S C.C1530
46909 CH HR1947 C. 10018
46919 CH 5JN1S47 C. 27162
46758 EV 5JN1937 C. 66329
46764 EV 17JL1937 C. 12087
46763 EV 23AU1937 0.06088
46750 EV 24SE1931 C. 04242
46767 EV 270C1937 0.23984
46762 EV 18PH1538 0.19850
46756 EV 27AP1938 0.79923
46766 EV 140E1538 C. 09506
1226 C 7 16MY1964 C.C4186
1229 0 5 14MY1964 C. 03595
1232 E 5 16MV1S64 C. 01044
1235 C 7 16JN1964 C. 05649
1237 C' 2 8JN1964 C. 15077
1241 E 2 13JN1964 0.10350
1244 F 1 11JN1964 C.OC439
1247 B 3 14 JL 1964 1.49400
1441 B 6 24JU964 2.92956
1251 C 7 16 JL 1964 C. 23466
1254 D 2 15JL1964 2.41333
1257 E 3 14JU964 1.CC490
1260 F 3 6JL1S64 2.13916
1442 B 6 2AU1964 1.43296
1265 C' 2 1CAU1964 C. 44710
1268 E 2 15 AU 1964 2.48-533
1444 B 6 19SE1964 0.00606
1273 C> 2 10SE1964 C.C2666
1276 0 3 18SE1964 0.04470
1279 E 1 16SE1964 C.2C811
1282 E 4 16SE1964 £.15512
1285 F 1 15SE1964 0.08736
1288 B 3 150C1964 0.01619
( 1290 C< 1 16GC1964 C.C3411
1 1293 0 2 150C1964 C. 56127
162
-------
1297
13CC
_L1Q3_
1309
1315
1318
1321
1321,
-i nig
1340
H43
1346
1168
1375
i4ns
1412
J415
1432
143 S
1438
1449
1452
1505
1511
1532
1541
1380
1385
1388
1392
1395
1555
1560
1563
1568
1546
J529
1549
1553
1399
1 1352
( 1405
1 1421
D 6
E 3
-E_6_
C1 1 .
D 5
E 2
E 5_.
F 2
C 3
A 6
C 7
A 3
e 3
A 4
C 5
E 3
C, 7
E 5
C 3
E 2
A 4
E 2
A 3
E 2
GS 4
65 9
GS12
GS16
GS19
SS 2
GS 8
GS11
GS16
LU 1
KW 1
MO 1
SG 1
PH 2
KM 2
ES 2
CH 2
15Ul,l'>64
140C1964
130C1964
_._11QEI.«!*_
10NQ1964
9N01964
7 NO 1964
7H01964
6N01964
2MR1967
28MR1967
19AP1967
21AP1967
4MY1967
7MY1967
23MY1967
31MY1967
28MY1967
13JN1S67
13JN1S67
14JN1967
16JL1967
14JL1967
28AU1967
1SE1967
18SE1967
110C1967
9MY1967
10NY1967
12CY1967
12CY1567
13MY1967
30C1967
4CC1967
5DC1967
50C1967
* 20C1S67
2CSE1967
4CC1967
6QC1967
5PY1967
21AP1967
12WY1967
23MY1967
U.576B5 I 1 1295
_0,33319 ) ( 1298
0.70163
0.82279
0.04712
1.12555
0. 94366
1.91083
2.92982
3.79876
0.06289
1.23459
0.61082
0.02848
0.56080
_JL.0062B
0.00241
O.OC298
0.00842
0.00450
0.03576
0.01579
C. 01089
3.74489
C. 96662
0.00515
2.57851
O.OC329
0.02661
0.00168
0.00471
0.00603
0.00308
0.00235
0.44845
0.02834
0.00935
0.01010
0.00500
0.01199
• 0.01370
0.02938
0.01360
C.1B897
1 1301
_- I -1304 _
( 1307
1 1310
I 1313
< 13.1.6..
< 1319
( 1322
( 1325
1 1338
( 1341
I 1344
< 1347
t 1369
( 1376
( 1410
( 1413
( 1416
i 1433
! 1436
( 1446
( 1450
( 1453
( 1509
I 1512
( 1536
1 1542
( 1381
( 1386
( 1389
t 1393
I 1398
( 1557
( 1561
( 1565
1 1573
( 1527
( 1530
1 1551
< 1351
1 1402
( 1354
0.03870 ) I 1349
0.01735 ) ( 1423
D 4
i 1
E 4
- f I
B 6
C- 2
0 3
D t
E 3
E 6
F 3
C 3
A 3
C 3
E 2
A 4
E 5
A t
C 7
E 5
C 3
E 2
A 3
C 5
E 3
C 5
E 3
e 2
E 3
GS 5
GS10
GS13
GS17
GS22
GS 4
GS 9
GS13
GS21
TR 1
FR 1
ES 1
Ml 2
TR 2
GH 2
Cl 2
WA 2
150C1964
12CC1964
130C1964
11QC1964
N01964
10N01964
9N01964
9NQ1964
7N01964
7N01964
6N01964
28MR1967
19AP1967
25AP1967
23AP1961
4KY1967
6HY1967
24NV1<:A1
25MY1967
28NY1967
17JN1967
15JN1967
11JL1967
16JL1967
15JL1967
2SE1967
1SE1967
24SE1967
UOC1967
10HY1967
12KY1967
12MY1967
13MY1967
14HY1967
3CC1967
40C1967
50C1967
60C1967
20SE1967
24SE1967
5CC1967
21AP1967
6m967
25AP1967
19AP1967
25KY1967
C. 74920
0.10233
3.09105
C, 14571
0.26699
2.69841
2.70270
0.34376
2.93247
7.46492
0.00252
2.03628
0.27771
C. 21011
0.83570
0.01491
0.01405
0.00564
0.00316
0.00875
0.56840
0.01447
1.02735
2.13272
1.41546
0.20692
0.46725
0.52626
C. 16273
C. 01193
C. 00575
0.00258
0.00274
0.01214
0.02616
0.00587
0.01521
0.00112
0.00629
C. 01000
0.05592
C. 17688
0.01624
O.C1726
0.01437
C.C0856
1296
1299
1302
1305
1308
1311
1314
1317
1320
1323
1336
1339
1342
1345
1348
1374
1408
1411
1414
1431
1434
1437
1447
1451
1454
1510
1513
1537
1543
1384
13B7
1390
1394
1554
1558
1562
1566
1544
1528
1548
1552
1427
1400
1403
1419
t 1424
0 5
E 5
F 2
C 7
0 4
£ I
E '
f I
C 3
C 5
A 4
C 5
E 5
E 2
A 3
C 3
E 2
A 3
C 5
E 3
A 4
C 7
E 5
C 7
E 5
E 3
E 5
GS 8
CS11
GS14
GS18
CS 1
es 5
CS10
ES14
CU 1
SB 1
CA 1
SM 1
LU 2
SB 2
CA 2
EU 2
KM 2
140C1964
130C1964
6MC19t4
9N01964
7N01564
27JA1967
19AP1967
25AP1967
23AP1967
23MY1967
2BMY1967
12JN1967
17JN1967
15 JN1967
11JL1967
16JL1967
15J11967
29AU1967
31AU1967
24SE1967
100C1967
10MY1967
12MY1967
12HY1967
13HY1967
30C1567
40C1967
50C1967
50C1967
20C1967
20SE1967
30C1967
60C1967
29HY1961
6PY1967
10NY1967
23MY1967
25CY1967
C.6C196 1
1.7C054 )
1.38366 }
1.2C575 )
4.34333 )
C. 74134 )
1.3S957 )
C. 62371 )
C.OC447 1
C.C1008 )
C. 03605 (
C. 03888 )
C. 01615 )
3.76591 )
0.59840 )
1.82036 )
0.00948 )
C. 04561 )
C.13B01 )
C. 01437 )
C.CC1B5 )
C.C1584 )
C. 01174 1
C.CCB60 )
C. 31310 I
C.OC396 )
C. 02220 )
C. 00367 I
C.CC23B )
C.C1444 }
C. 01272 )
0.01981 1
C. 03632 )
C. 01191 )
C. 01308 )
C. 03662 )
C. 01332 )
Rhisosolenia graoilis H. L. Smith
Khizosolenia graeilis H. L. Smith, Proc. Amer. Soc. Micr., 5:177, pi. 1,
fig. Ib. 1882.
Cells bacilliform with a single conspicuous spine at each end. Valves
much reduced, appearing as a cap at the ends of the cells. Cells elongate in
the pervalvar axis and laterally compressed. Specimens from Lake Michigan
55-250y long, 4-12p broad at the greatest diameter, only 2«-4y broad at the
least diameter. Intercalary bands numerous, similar in structure to a flat-
tened split-ring. Frustules very lightly silicified, structure of the inter-
calary bands and imbrication line poorly visible. The terminal spines are
only slightly excentric and are very long and fine.
This species is occasionally taken in plankton collections from Lake
Michigan, most usually in regions that have undergone some degree of eutro-
phication. It is extremely variable in structure, and malformed specimens
are common. This species is usually destroyed in diatom cleaning procedures
and is easily overlooked in living material due to its delicate structure.
. 633 RHLONG1S TCT NC OF STM1CNS 1_23_
(46916
146767
1 1440
< 1254
1 1260
I 1281
I LM5_
1 1289
- 1 1295
CH
EV
6 6
D 2
F 3
t 3
JE 1
C 7
D 4
4MY1947
11JN1937
27CC1937
11JL1964
15JL1964
6JL1964
16SE1964
14OC1964
15CC1964
0.00170 )
1.19823 )
0.01547 )
2.83745 )
0.32178 )
0.09359 )
0.00821 )
0.00785 1
0.02199 )
O.C2378 )_
(46924
(469C6
146747
(46772
(46761
I 1441
( 1252
( 1255
( 1442
( 1269
i 1282
( 12S3
.1 1296
CH
Ch
EV
EV
EV
B 6
C' 1
D 5
F 1
8 6
E 3
t 4
G 2
...05 ..
10HY1946
*Y1947
1AU1937
18AP1938
27MY1936
24JU964
16JL1964
15JL1964
6JL1964
2AU1964
15AU1964
KSE1964
150C1964
15CC1964
14CC1964__
0.00564
0.43140
0.00495
0.01419
0.07631
C.3083B
C. 01395
1.61696
0.00472
0.01706
0.01370
C. 01108
C. 00435
C. 00943
JkC2754
46909
46907
46750
46756
1439
1250
1253
1256
1259 _
1265
1273
12B3
1445
I 1294
_. J LJS7
CH
CH
EV
EV
B 6
C 6
C1 2
E 2
F 2
C' 2
E 5
B 6 _
D 3
0 6
MR1947
JU947
24SE1937
5JN1964
10JL1964
16JL1964
14JL1964
6JL1964
10SE1964
140C1964
15OC1964
140C1964
C. 00455
C.OC471
C. 69930
C. 01369
C. 12705
0.01613
C.CC978
C.C1319
C.OOS71
163
-------
1299 E 1 120C1?64 0.00269
1301 E 4 IMC1964 0.00883
1305 F 2 110C1964 0.00173
1109 C1 1 1CH01964 0.02251
1312 D 2 8N01964 0.02794
ni"> n 5 9M11964 0.02275
1318 6 2 7N01964 O.C2854
1371 F 5 7NEU964 0.0063B
1336 C 3 27JA1967 0.00193
1340 C 7 P8MR1967 0.00654
1343 A 6 19AP1967 0.02640
H4ft r. 7 ;1API<)«7 O-l-iPB?
1368 A 3 4PY1967 0.00628
1376 E 5 6HY1967 O.CC562
1416 E 5 28MY1967 0.00219
1433 C 3 17JN1967 0.32296
1446 A 3 11JL1967 0.85612
1450 C 5 16JL1967 1.33295
1453 E 3 15JL1967 0.25782
1512 E 3 1SE1967 0.02749
1343 GS 7 10WY1967 0.00267
1392 GS16 12KY1S67 0.00308
1556 GS 3 30C1967 O.OC521
1399 PW 2 5MY1967 0.01360
1353 FR 2 23AP1967 0.01055
I 1419 BU 2 23KY1967 0.01831
|
1299 E 2 120CIS64 0.01257
1303 E 6 13GC1964 0.00560
1307 B 6 M01964 C. 01082
1310 C1 2 10N01964 0.03401
1313 D 3 9NC1964 C. 10618
1316 0 6 9N01964 C. 00756.
1319 E 3 7N01964 C. 02095
1322 E 6 7N01964 C.C0333
1337 C 3 2HR1967 0.01911
1341 A 3 19AP1967 0.01410
1344 C 3 25AP1967 0.01158
1347 E 2 73AP1967 H.OJ7&4
1370 A 6 3MY1967 0.00230
1411 C 3 31HY1967 0.00410
1431 A 3 12JN1967 0.04635
1434 C i 17JN1967 O.OC598
1447 A 4 11JU967 0.65494
1451 C 7 16JL1967 0.08267
1454 E 5 15JL1967 0.16603
1536 E 5 23SE1967 0.00552
1386 6S10 12NY1967 0.00287
1395 6S19 13MY1967 0.00117
1547 MS 1 2CC1967 0.00798
1400 SB 2 6MY1961 C. 00596 1
1403 CA 2 10KY1967 0.01308
1423 kA 2 25HY1967 C. 00428 1
1300 E 3 130C1964 C.CC716 )
13C4 F 1 110C1964 C.CC494 )
1308 C 7 6N01964 0.0/liV 1
1311 D 1 6N01964 C. 09287 )
1314 D 4 9N01964 O.O5I4Z )
1317 E 1 tl.01964 C. 19530 1
1320 1 4 7N01964 C.OC8J7 )
1323 f 1 Akir,1964 0.00557 1
1339 C 5 28HH1967 C.OC624 )
1342 A 4 19AP1967 0.31581 1
1345 C 5 25AP1967 C. 12475 )
114B E 5 J3AP1967 C.C9596 1
1374 E 2 7HY1967 0.02690 1
1414 E 2 28HV1947 C.CC336 )
1432 A 4 13JN1967 0.02044 )
1435 C 7 13JN1967 C. 01894 )
1449 C 3 16JL1967 1.60495 )
1452 E 2 14JL1967 C. 16605 1
1511 E 2 1SE1967 C. 00614 )
1381 CS 5 10KY1967 C.CC239 )
1387 CS11 12MV1967 C.OC792 )
1398 GS22 14HY1967 C.CC911 1
1351 M 2 21AP1967 C. 11171 )
1352 KW 2 21AP1967 C.03436 )
1407 SH 2 14HY1967 C.OC597 )
1424 KN 2 25MY1961 C. 01332 )
Genus Ehoioosphenia Grun.
Grunow, Verb. Zool.-Bot. Ges. Wien, 10:511. 1860.
Members of the genus Rhoieosphenia find their primary habitat in peri-
phyton communities. Occasional specimens are taken in plankton collections
from Lake Michigan, particularly in nearshore areas.
Kho-ioosphen-La aurvata (Kutz.) Grun.
Gomphonema curvatwm Kvitzing, Linnaea, 8:567, pi. 16, fig. 51. 1833.
Rho-ioosphen-La aurvata (Kutz.) Grunow ex Rabenhorst, Fl. Europaea Alg.,
p. 112. 1864.
624 RCCURVAT TCT NC OF STJT1CMS 64
I 3541 CH 1FE1681 0.00976
(46920 CH 20DE1946 0.00062
146747 EV 1AU1937 0.014B5
146750 EV 24SEL937 0.00943
146749 EV 12KR1938 0.01214
(46751 EV 30MUS36 0.01117
( 1341 A 3 19AP1967 0.00108
1504 A 3 2EAU1967 0.00247
1388 GS12 12MY1967 0.00603
1567 GS15 50C1967 C. 00476
1524 Ml 2CSE1967 2.03590
1521 SH 18SE1S67 0.06347
1525 PW 20SE1967 0.08355
1528 SB 2CSE1967 0.23101
1531 GH 25SE1967 0.10989
1549 PO 1 40C1567 0.01370
1553 SK 1 6CC1967 0.01469
1351 fl 2 21AP1967 0.00310
1 1350 BH 2 19AP1967 0.03524
1402 TR 2 6CY1967 0.01S24
1354 GH 2 25AP1967 0.00173 )
1423 «A 2 25KY1967 O.OC428
(46U7 Ch 12JA1946 0.00028
(46922 CH 21AU1947 C.00097
(46763 EV 23AU1937 1.56250
(46748 EV 130C1937 0.17079
(46768 EV 16MR1938 O.C1470
1272 C* 1 10SE1964 0.00821
1342 A 4 19AF1967 O.COJ80
1536 E 2 24SE1S67 0.00273
1557 6S 4 30C1967 0.00374
1569 GS17 50C1967 0.00297
1546 LU 20C1967 C. 03001
1522 BH 18SE1967 0.00912
1526 MO 20SE1967 0.81356
1529 KU 20SE1967 0.62358
1545 XL 2CC1967 0.10812
1552 SM 6GC1967 C.C0660
1428 MU 2 29NY1967 0.00603
1427 LU 2 29MY1967 C. 03632
1399 Ph 2 5MY1967 0.00680
1400 SB 2 6HY1967 0.07148
1429 WL 2 29MY1967 C. 01062 )
(46923 CH 22N01946 0.00219
(46764 EV 17JL1937 C. 00806
146752 EV 15SE1937 C. 26121
(46767 EV 270C1937 C. 01547
(46762 EV 18MD193G C. 02206
( 1285 F 1 15SE1964 C. 00582
( 1343 A 6 194P1967 C.OCC69
1538 1 5 23SE1967 C. 02210
1561 CS 9 40C1967 C. 00587
1575 CS28 60C1967 C.C0387
1520 !-0 1 18SE1967 0.05658
1523 RA 1 " 1SSE1967 C. 18450
1527 TR 1 20SE1967 C. 08176
1530 FR 1 24SE1961 C. 02000
1548 CA 1 30C1967 C. 05088
1550 »R 1 5CC1967 C. 01239
1426 US 2 29HY1967 0.03150
1417 H3 2 22HY1967 C. 00374
1401 KO 2 6MY1967 C. 01176
1352 Kk 2 21AP1967 C.C.C859
1403 CA 2 10HY1967 C.0130S
Rhoicosphenia curvata var, subaouta M. Schmidt
Rkoieosphenia ourvata var. subaouta M. Schmidt in: A. Schmidt, Atlas
Diat., pi. 213, figs. 6-7. 1899.
625 ROCLRVVS TCT NC CF STATIONS
( 1544 NU 1
20C1?67 0.00238 f " (
Genus Rhopalodia 0. Mull.
0. Muller, Bot. Jahrb., 22:55. 1895.
Members of the genus Rhopalodia are adapted to epiphytic growth on
aquatic vascular plants and the coarser species of algae. Occasional speci-
mens are noted in plankton collections from Lake Michigan, particularly those
from nearshore areas.
164
-------
Rhopalodia gibba (Ehr.) 0. Mull.
Navioula gibba Ehrenberg, Infusionsthierchen, p. 184, pi 13 fie 19 i«
Rhopalodia gibba (Ehr.) 0. Muller, Bot. Jahrb.^ 22:65, pi. 1,' f^. 15-17!
426 RPGIBBA 1C1 NC OF STATICNS
Rhopalodia gibba var. ventvioosa (Kiitz.) V. H.
Epithemia ventrioosa KUtzing, Bactll., p. 25, pi. 3, fig. 9. 1844.
Rhopalodia gibba var. yentrieosa (Klkz.) Van Heurck, Treat. Diat.,
P. 296. 1896.
*28 _ RPG1BBVV TOT NO OF STATIONS 1
I 1Z61 _ LS _ 17SE1S64 0.00318 1 I
Rhopalodia gibberula (Ehr.) 0. Mull.
Eunotia gibberula Ehrenberg, Phys. Abh. Akad. Wiss. Berlin. 1841:126,
pi. 3(4), fig. 8. 1843.
627 __ fi£lUflfiAB_ISm!B_OF ST/1TICKS 1 _
I 13SQ - EH Z _ 1SAP1^67 o.oc;?o 1 I
Genus Stauroneis Ehr.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1843:45. 1843.
Most members of the genus Stauponeis find their primary habitat in ben-
thic communities. Certain species that are abundant in epipelic populations
are rather commonly found in plankton collections from Lake Michigan but al-
ways in very low numbers.
Stauroneis aoutiusoula Per. and He'rib.
StaiO'oneis aGutiusoula Peragallo and He'ribaud in: Hgribaud, Diat. Auvergne,
p. 78, pi. 3, fig. 20. 1893.
621 SAACU1TI TOT NO OF STATIONS _ 5 _
I 1565 GS13 50CI967 0.01521 I ( 1569 GS17 50C1967 C.001*9 ) I 1546 LI 1 20C1961 C.OC500 )
( 1530 FR~T 2«SE1967 0.0100C ) I 1545 STT 20C1967 C.02027 ) (
Stauroneis anoeps Ehr.
Stauroneis anoeps Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:422,
pi. 2(1), fig. 18. 1843.
63C SAANCEPS TCT NO OF STATIONS 6
a , ?SKS; irssa ; i as
Stauroneis anoeps fo. graoilis Rabh.
StauToneis anoeps fo. graeilis Rabenhorst, Fl. Europaea Alg.s sect. 1,
p. 247. 1864.
tCT Nf! Of STATIONS - 1 -
13EY1967 __ O..00270_! - 1-
165
-------
Stauroneis anceps var. siberiaa Grun.
Stauponeis anceps var. siberica Grunow in: Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):48, pi. 3, fig. 65. 1880.
632 SAANCEVS TPT 1.0 OF STATICHS 5
146922 CH 21AU1947 0.00048 I 146764 EV 17JL
1S37 0.01612 ) (46763 _EV 23AU1937 C.C2029 )
I 1575 GS28 6QC1967 0.00129 ) ( 1405 ES 2 12NY1967 0.00645 t
Stauroneis dilatata Ehr.
Stauroneis dilatata Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:134,
pi. 1(2), fig. 12. 1843.
634 SADUATA 101 MO OF STATIONS 4
(46764 EV17JL19370.03222 ) U6757 EV25JU9370.02689 1 «46747 EV1AU1937 C.OC495 )
I4A7&3 EV/ 23AU1937 0.02029 I I
Stauroneis nobilis var. baconiana (Stodd.) Reijn.
Stauroneis baooniana Stoddard, Proc. Boston Soc. Nat. Hist., 7:26. 1859.
Stawoneis nobilis var. baooniana (Stodd.) Reimer, Proc. Acad. Nat. Sci.
Philadelphia, 113:204, pi. 2, fig. 1. 1961.
633 SANCBIVB TOT NO CF STATIONS 1
( 1388 GS12 12WV1967 0.00603 ! ii
Stawoneis phoenioenteron (Nitz.) Ehr.
phoenieenteron Nitzsch, (pro parte), Neue Schrift. Naturf . Ges.
Halle, 3(1): 92, pi. 4, figs. 12, 14 (non figs. 1-11, 13, 15-22). 1817.
Stauvoneis phoenieenteron (Nitz.) Ehrenberg, Phys. Abh. Akad. Wiss. Berlin,
1841:387, pi. 2(5), fig. 1. 1843.
s/iPHCEM TOT NO Of STATIONS
I IMP GS14 12HY1967 Q.OC587 ) !
Stawon&is phoenioentevon var. brevis Dippel
Stccuroneis pnoenicentevon var. brevis Dippel, Diat. Rhein-Mainebene, p. 82,
fig. 176. 1904.
637 SASPECCA TCT NC OF STATIONS
( 1404 KC 2 10MV1967 O.C127C J 1
Stauroneis smithii Grun.
Stauroneis smithii Grunow, Verh. Zool,-Bot. Ges. Wien, 10:564, pi. 6,
fig. 16. 1860.
&** SASM1THI TCT NC CF STATIONS f,
i 1399 ESt3 12HY1967 0.00258 I I 1565 GS13 50C1967 0.02028 I I I54S HO 1 4001967 C.C1370 )
"j 1550 MR I 50C1967 0.01239 1 ! 1350 BH 2 19AP1967 0.00220 I < 1404 M) 2 10MV1967 0.01270 )
Genus Stephanodiscus Ehr.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1845:80. 1845.
Stephanodisous alpinus Hust. ex Huber-Pestalozzi
Stephanodiscus alpinus Hust. ex Huber-Pestalozzi, Die Binnengewasser, Band
16, Teil 2, Halfte 2, p. 412, pi. 122, fig. 508. 1942.
166
-------
Cells circular in valve view and rectangular in girdle view. Vegetative
cells always occur^singly. Valves of specimens from Lake Michigan 7-33n in
diameter with slightly concave centers. Radial striae usually In biseriate
fascicles near the margin, becoming single near the center of the valve, more
rarely single throughout or becoming triseriate near the margins. Puncta
in radxal striae small but distinct, 18-22 in lOy. Fascicles are rather
widely separated by conspicuous, thickened ribs. The marginal spines occur
at the ends of the ribs, between the fascicles. Usually a spine is present
at the end of each rib but occasionally, especially in the small individuals,
spines may be irregular or lacking. Fascicles and spines 7-10 in lOu at the
margin of the valves.
Although this species has only recently been reported from Lake Michigan
(Stoermer 1967), specimens included in our concept of the taxon are present
both in modern samples and in samples dating back to 1876. Previous reports
probably refer this species to Stephanodiseus astraea (Ehr.) Grun. or S.
astraea var. minutula (Kutz.) Grun. Huber-Pestalozzi (1942) reports this en-
tity is abundant in the hypolimnion of alpine lakes.
638 STALPINU TCT NC OF STATICNS 256
(6C973 CH 1676 0.4S598
1 3507 CH 19FE1881 0. 30564
—
_
-..(
(
1
(46917 CH 12JA1S46 0.0058?
(46924 CH 10MY1946 C. 01058
(469C5 CH JA1947 0.00490
(46916 CH 4KYJLS4.7_.. 0. 00611 _
146907 CH JL1947 0.32052
(46743 EV 20JM937 0.01285
46763 EV 23AU1S37 0.02029
1224 B 4 _ . . .4.8MY1964 0.00392
1231 e 3 16MV1964 0.0366S
123.4 .6 3 _ . 18JM964 C. 0140.6
1237 C1 2 8JN1964 0.01031
1240 D a 10JN1964 0.02148
1243 E 6 13JN1S64 0.01044
1246 F 3 UJN1964 0.06574
1441 B 6 24JL1964 G.C2423
1253 .C.V.2.... J.6JiU.i64 0.0.6162
1256 E 2 14JL1964 0.06595
1259 F 2 6JL1S64 0.06817
1262 B 3 17AU1964 0.01050
1264 ... tf_l _IOAU1964 0.005_79_.
1269 E 3 15AU1964 0.17267
1272 C1 I UISel964 Q.C041C.
1279 E 1 16SE1964 0.01571
12S3 F 5 l£SE19fa4 Q.C1226
1286 F 2 15SE1964 0.02189
1289 C 7 14CC1S64 C.CC879
1294 D 3 15C1C1964 0.00659
1299 E 2 UCCl'564 .. 0,00943
1302 E 5 130CIS64 0.08503
1305 F 2 11CC1964 C. 00345
1309 C' 1 1CNU1964 0.00161
1313 0 3 9KCL964 C.C2896
1316 0 6 9N01964 0.00376
1319 .E.3.. 7NC1564 C.OQ785
1322 E 6 7N01964 O.OC333
1336 C 3 27JA1967 O.OC578
1339 C 5 2SKR1967 O.C5300
1347 E 2 23AP1S67 0.00163
1374 E 2 7MY1967 0.0059B
1409 .A 4 23KY1967 0.00893
1414 t 2 28MY1967 0.00336
1436 E 2 15JN1967 0.00724
1449 _C 3 16JL1967... .O.CC764_.
1452 E 2 14JL1967 0.00639
1512 E 3 1SE1967 0.01571
1537 E 3 24SE1967 0.08626
1543 E 5 100C1967 0.01437
1379 R*; 3 9HY1967 n.^6828
1 3540 CH 11PY1879 0.29819 j < 354i CH 1FE1681 C.7C42; )
(46^10 CH OC1945 C. 00109 I 146921 Cf ?^fcP194? r.nn^JI 1
(46?15 Ch 20FE1946 0.03414
<46?23 CH 22M01946 0.00437
---
---
1382 GS b 10MY1967 0.06939 1
1388 GS12 12CY1967 0.35596 I
1394 6S18 13MY1967 1.32453 >
1397 GS21 13PY196Z Q,a.6.74i_l
(46SC9 Ch MR1547 C. 59196
(46906 Ch MY1947 0.01726
(4t
(46914 Ch 19AP1S46 C. 23064
(46920 Ch 200E1946 O.OC647
(46912 Ch AP1947 C.C3449
(46919 CH 5JM947 C.CC910
(46771 EV 11JN1937 C.C1902
(46757 £V 25JL1937 0.00481
1
(46759 EV 19Wyl93E C.CC675
1229 0 5 14HY1964 C.C3806
1233 B 3 5JN2964 0.00714
1236 C1 1 8JM564 C.CC525
1239 C 4 11JM964 C.CC348
1242 E 3 13JN1964 C.CC450
1245 F 2 llJN19t4 C. 12102
1440 B 6 11JL1964 C.C7370
1252 C1 1 16JL1';64' C.C1116
1255 D 5 15JL1964 C. 30543
1258 f 1 6JLH64 C.C5191
1261 8 3 2AU1S64 C.CC785
1263 C 7 15AU964 C.CC400
...1_268 E_2 1.5AU1964 O.J.7234
1271 C 7 22SE1564 C. 01306
1278 D 6 1SSE1964 0.00769
12E1 E 3 1CSE1S64 C. 00392
1285 F 1 15SE1S64 C.C2912
1445 B 6 140C1964 C. 01305
..12S3 D..2 150C_1964. . C..CC472
1298 E 1 120C1964 C.CC539
13C1 E 4 13CC1964 C. 00883
1304 F 1 110C1964 C.OC741
1308 C 7 6NC1S64 C.C1217
1312 D 2 8NC1964 C.CC310
1315 C 5 9NC1S64 C.CC91C
1318 E 2 7NC1964 0.01332
1321 E 5 7NC1S64 C.CC958
1325 f 3 6NC1-S64 C. 00504
1338 C 3 28KP1967 C. 01190
1341 A 3 19AP1967 C.OC759
1346 C 7 21AP1967 C. 00401
1369 A 4 4MY1967 C. 00745
1372 C 5 5MY1967 0.02837
1376 E 5 6MY1967 C.CC843
1411 C 3 31MY1967 C. 02051
1432 A 4 13JN1967 C.OC255
1435 C 7 13JN1967 C.C2210
1446 A 3 11JL1967 C.CC245 )
1451 C 7 16JL1967 C.OC197 )
1454 E 5 15JU967 C.C1200
1511 E 2 1SE1967 C.C1842
,532 A 3 18SE1967 0.00986 ) 1533 A 4 195E1967 C. 00464
lea* r 7 20SE1967 O.C0322 ) 1536 E 2 24SE1S67 C.C1636
1533 E 5 23SE1967 C. 02762 1539 C 3 40C1961 C.C1510
,t;41 E 2 HOf.1967 C.C4790 1542 E 3 110C1967 C. 32038
1377 GS 1 9HY1967 0.01583 1378 GS 2 9HY1967 C.OC841
linn GS 4 9HY1967 0.05213 1381 CS 5 10HY1967 C.C3101
1383 GS 7 10MY1967 0.09356 1384 GS 8 10HY1967 C. 66550
"" "lO 12CY1967 0.27866 1387 CS11 J2JV1967. .. ^7521.4 .
1>89 GS13 12HY1967 0.08767 1390 GS14 12KY1967 C.J934i
!.«' GS16 IZKV1M7 0.721J8 ) 1393 GSJ7 13^1967 0.54789
~ n«~" GS19 13HY1967 0.18202 ) 1396 6S20 13«Yl?67 C. 05179
1398 GS22 14HY1S67 0.12448 1 1554 6S 1 30C1967 C.01423
167
-------
1558 GS 5 4CC1967 0.05549
1561 GS 9 40C1967 0.00587
1564 GS12 5CC1967 0.00658
1567 GS15 50C1967 0.3175'!
1570 GS18 50C1967 0.87267
1573 GS21 6DC1567 0.22622
1544 PU 1 2CC1967 C. 22160
1546 IU 1 2QC1967 0.88031
X52J RA 1 19SE1967 O.C369C
1527 TR 1 2CSE1967 0.18239
1530 FR 1 24SE1967 0.01000
1548 CA 1 3GC1S67 0.07633
.1.5.52 __._SM._1 60C1967 .0.1.6507.
1428 KU 2 25PY1967 0.1C546
. 142_7 IU 2 29MYL967 itSOSAU
1350 Bh 2 19AP1967 C. 12995
1401 MO 2 6MY1967 0.84078
1352 KW 2 21AP1967 0.72153
1429 WL 2 29PY1967 0.29727
1405 ES 2 12MY1967 0.40635
1406 GB 2 13MY1967 0.04044
1421 CH 2 23MY1967 0.74601 )
1424 KN 2 25MY1967 0.83933 I
155S GS 7 4GC1967 C. 01399
1562 GS10 50C1967 C. 00740
1565 GS13 50C1967 C. 01014
1568 GS16 5CC1967 C. 12698
1571 GS19 60C1967 C. 04507
1574 GS22 6QC1967 C. 04027
1547 H$ 1 2QC1967 C. 27944
1520 HC 18SE1967 0.75440
1525 Ph 20SE1967 C. 01393
1528 SB 20SE1967 0.07219
1531 GH 25SE1967 0.29586
1549 PC 4DC1567 C. 09593
1550 MR 50C1967 C. 73101
1426 MS 2 29^1967 0.03150
1417 HO 2 22HVIS67 0.59818
1425 RA 2 25MY1967 C. 39784
1402 TR 2 6PY1967 1.03964
1353 FR 2 23AP1967 0.17932
1403 CA 2 10PY1967 1.76540
1407 SH 2 14HY1967 0.57921
1419 BU 2 23MYIS67 0.58587
1422 SA 2 23W967 0.77658
LS>I IS 4 30C1967 C. 23169
1560 GS 8 4CC1967 0.01*17
1563 GS11 50C1967" 0.03040
1566 GS14 50C1967 C.C330J
1569 GS17 50C1967 C. 55594
1572 GS20 6CC1S67 C.C1622
1575 CS28 60C196? C. 25804
1524 Cl 1 JOSE1567 C. 32837
1521 SH 1 16SEJ961 C.3C002
1526 CO 1 20SE1967 C. 15930
1529 KM 1 20SE1967 C.C5996
1545 hi 1 2CC1S67 1.94608
1551 ES 1 50C1967 C.67C98
1553 £G 1 60C1967 0.49941
T351 M"~Z " 21AP1S67 C.1S550
1418 SH 2 22HV1967 _ C. 24883
13S9 PK Z 5KY1967 C. 56487
1400 SB 2 6HY1967 C.SJ18C
1354 GH 2 25AP1967 C. 14499
1404 PC 2 10MY1967 C.1C163
1349 Cl 2 19AP1967 0.30175
1420 IH 2 23*Y1967 C. 18127
1423 kA 2 25HK1967 1.E2015
Stephanodisaus astraea (Ehr.) Grun. in Cl. and Grun.
Disooplea. ? astraea Ehrenberg, Ber. Akad. Wiss. Berlin, 1844:267. 1844.
Cyolotella astraea (Ehr.) Kiitzing, Sp. Alg., p. 19. 1849.
Stephanodiscus astraea (Ehr.) Grunow, in Cleve and Grunow, K. Svenska
Vet.-Akad. Handl., Ny Foljd, 17(2):114. 1880.
Cells circular in valve view and rectangular in girdle view. Vegeta-
tive cells always occur singly. Radial striae in biseriate fascicles near
the margin of the valve, becoming uniseriate and disorganized near the center
of the valve which is markedly concave. Puncta in the radial striae dis-
tinct, 16-19 in lOy. The fascicles are closely packed with only a narrow
hyaline space separating them. The spines in this species are submarginal
and irregularly arranged, usually between every 2-4 fascicles. Fascicles
6-8 in lOp at the margins of the valves. In this taxon the fine, irregu-
larly punctate ornamentation of the valve mantle is visible as a margin
which is separated from the ornamentation of the valve surface by a narrow
hyaline space. The spines arise from the inner border of the apparent mar-
gin.
Despite the fact that this is the most widely reported species of the
genus, numerous problems of both circumscription and formal nomenclature are
attached to it. I have not had the opportunity to observe authentic material
of Diseoplea astraea. Material annotated by Grunow, author of the combina-
tion, upon whose illustrations and verified specimens most modern treatments
of this taxon are based is available in the United States and is the basis of
our concept of the taxon.
Many of the authors that have treated the Lake Michigan plankton have
either failed to distinguish this species from S. niagarae or have considered
the two taxa to be synonymous. Cleve-Euler (1951) has made a variety S.
astraea var. niagarae, and has pointed out the close morphologic similarity
of the two forms. Although this contention cannot be dismissed lightly,
substantial differences do exist in the morphology of apparently discrete
populations from the upper Great Lakes region and we chose to take the taxo-
nomically conservative position that the two taxa, as circumscribed repre-
sent distinct genetic entities unless it can be shown experimentally that
the range of variation observed can be accommodated by a single genome.
168
-------
The formal nomenclature of this species has been beclouded by the great
number of 'varieties," some with strikingly different morphology/that have
been attached to it. It is our contention that a number of these entities
should be treated as separate entities as their resemblance to the typical
species is, at best, superficial.
Hendy (1964) has made a new combination, 5. Totula (Kutz.) Hendy, cit-
ing S. astraea (Ehr. ex Kutz.) Grun. in Cleve and Grunow as a synonym. Hendy^s
reasoning on this is obscure in that Klltzing (1849) clearly indicates that
Cyolotella votula Kutzing (1844) is a later synonym of Discoplea ? astraea
Ehrenberg (1844) and further makes a new combination Cyalotella astraea (Ehr.)
Kutz. based on that epithet. In order to make his intentions fully clear he
then proceeds to make a new, and by current rules thoroughly illegal, combina-
tion^, rotula (Ehr.) KUtz. based on Disaoplea ? rotula Ehr. (1844). Although
KUtzing's name juggling seems to have confused Hendy, such was not the case
with Grunow as he clearly refers the specific epithet to Ehrenberg's type a-
long with KUtzing's synonym.
This species, despite the relatively large number of reports referring
to it, is rare in the plankton of the major portion of the Lake Michigan basin.
It occurs in considerable quantity in estuaries and inshore waters that are
appreciably eutrophied. It is also one of the most common members of the
genus in smaller lakes throughout the state.
,_63S SIASTBflE TO.T NO OF STflTKNS 33
1232
1238
1266
1337
J.342_
1432
1384
1544
1 1531
( 1418
L1429
E 5
D 3
D 3
C 3
A 4
A 4
GS 8
I*U 1
GH 1
SH 2
UL 2
16MY1S64
UJN1964
16AU1964
2MR1967
194P1S67
13JN1S67
IOKY1967
20C1967
25SE1967
22CY1967
29MY1567
O.OC174 ( 1236
0.00200 1 1241
0.00351 ( 1274
0.00294 { 1338
0.00180 ( 1411
0.00511 ( 1437
0.00135 ) ( 1389
0.04766 ) 1 1520
0.01691 ) 1 1428
0.01555 ) ( 1350
0.04247 I < 1406
C1 1
E 2
C 1
C 2
£ j
E 3
GS13
hO 1
KU 2
BH 2
GB 2
8JM964
13JN1964
17SE1S64
28MR1967
31HY1S67
15JM967
12HY1967
18SE1967
29MY1967
19AP1967
13KY1967
C. 00875
0.00296
C. 00469
0.00132
C.C0821
0.00269
C. 00258
0.39606
0.01808
C. 00220
0.11592
1237
1264
1309
1341
1416
1380
1566
1526
1417
1354
1419
C- 2
C1 1
C' 1
A 3
E 5
CS 4
GS14
fO i
1-0 2
C-H 2
BU 2
8JM964
10AU1964
10NC1964
19AP1967
28MY1967
9KY1967
50C1967
20SE1967
22HY1961
25AP1967
23PY1967
C.CC773 )
C.GC193 )
C.CC322 )
C.OC108 1
C. 06342
C.OC168
C.OC183
C. 00569
C. 77763
C. 01381
C. 07323
StephanodisGus binderanus (Kutz.) Krieger
MelosiTa 'bindevana Klltz., Bacill., p. 55, pi. 2, fig. 1. 1844.
Stephanodiscus binderanus (Kutz.) Krieger, Pflanzenforsch. 10:21.
1927,
Cells circular in valve view and rectangular in girdle view, elongate
in the pervalvar axis. Vegetative cells always occur in colonies, attached
at the valve surface. Valves of specimens from Lake Michigan 8-22p in dia-
meter, valve surfaces planar. The radial striae are not united into well
defined fascicles. Ornamentation of the valve surface is very irregular in
this species. In some specimens the poroids are arranged in definite rows
and a secondary level of radial ribs is visible, in others the ornamentation
of the valve is only partially developed and its order is obscured. A bor-
der of small, regularly arranged, submarginal spines is present. The slime
pores are not directly below the spines on the valve mantle in this species
as they are in most other members of the genus. Because of the shallow valve
mantle the slime pores, which are irregularly arranged, are highly visible and
their thickened bases may be confused with spines unless care is taken. Punc-
ta in the radial striae about 20-24 in lOy. Submarginal spines 8-10 in lOy,
usually 3-5 spines occur between each slime pore.
169
-------
As Krieger (1927) points out the frustular structure and the sequence of
formation of elements of the frustule in this species are essentially similar
to other species of Stephanodisous and much different from Melosira (Reimann
1960). Its superficial resemblance to the latter genus is only based on its
consistent colonial growth habit. A number of the smaller species of
Stephanodisous show a greater or lesser tendency to adopt the colonial habit.
Great care must be taken if these species are to be distinguished. It is to
be emphasized that there is no certain way to distinguish them in living
material.
This species is apparently a recent introduction into the flora of Lake
Michigan. We have not been able to find records of its occurrence prior to
1938. It is now present in polluted inshore areas throughout the lake and
substantial spring blooms have been noted in all parts of the lake in the
past few years. Its introduction has caused substantial difficulties for
filtration plants utilizing water from that lake in that its filamentous
growth habit makes it an excellent filter clogger.
_3_3J HFB1M1FR 1CT NO OF STATIONS 224
14*921
(46912
(4675L
CH
CH
EV
23N01945
AP1947
30MR1938
0.00065 )
0.01150 I
0.06699 )
(46914
1 46516
t-46772
CH
CH
EV
19AP1946
4MY1947
1BAP193B
0.48584 1
C. 00170 1
0.01419 )
14692*
(46906
(46756
CH
CH
EV
10MV1946
m9*7
27AP1938
C.OC141 )
C. 00133 )
c. ctes4 }
EV
27MY1938 0.00545 )
15HY1964 C.0940B ) I 1226
C 7
16MY1964 0.35769 i
1537 r* •> 13MV14A4 (1-OC329
1230 c Z 16MY1964 0.27263
1233 B 3 5JN2964 0.04287
1439 B 6 5JN1964 0.18781
1238 D 3 UJN1964 O.C280C
1241 E 2 13JN1964 0.07393
1244 F 1 11JN1964 0.00548
1440 B 6 11JU964 0.00369
1251 C 7 16JL1964 0.00579
1254 D 2 15JL1964 0.01724
1258 F 1 6JL1964 0.00236
1442 6 6 2AU1964 0.00682
1266 D 3 18AU1964 O.CC351
1270 F 1 10AU1964 0.00272
1275 D 2 17SE1964 O.C2580
1280 E 2 16SE1964 0.00681
1288 B 3 150C1964 0.00218
1291 C1 2 160C1S64 0.00734
1297 D 6 140C1964 O.C0190
1309 C1 1 10N01964 C. 00322
1312 0 2 8N01964 0.04656
1316 0 6 9N01964 0.00378
1321 F." 5 7N01964 0.00319
1337 C 3 2MR1967 4.88690
1340 C 7 2BMR1967 8.29(704
1343 A 6 19AP1967 42.65C01
1346 C 7 21AP1967 1.58893
1368 A 3 4MY1967 1.64939
1371 C 3 4PY1S67 0.03001
1374 E 2 7HY1967 0.62762
1400 A 3 7awv|q^? n.mnn
1412 C 5 31MY1967 0.00842
1415 E 3 28MY1967 0.00450
1432 A 4 13JN1967 0.00766
1435 C 7 13JM967 0.22101
1438 E 5 14JN1S67 0.55919
1449 C 3 16JL1967 0.69548
1452 E 2 14JU967 0.03832
t?13 E 5 31AU1967 0.00507
1536 E 2 24SE1967 0.00273
1540 C 5 4QC1967 0.00993
1377 GS 1 SNY1967 O.OC792
1381 GS 5 10MY1967 1.00176
1384 GS 8 10MY1967 3.62325
1187 ES11 12HY1967 1.52487
1390 GS14 12MY1967 1.64416
1V93 CS17 13HY1S67 4.7939S
1396 GS20 13MY1967 15.58951
1«4 GS 1 30C1967 0.00356
1558 GS 5 40C1967 0.01586
1562 GS10 50C1967 0.0074C
1565 SS13 50C1967 0.04056
15A8 GS16 5BC1967 0.31457
1572 GS20 60C1967 0.34700
1575 GS2B iCC1967 0.07225
1524 MI 1 20SE1967 0.15324
IS?1 SH 1 18SE1967 0.18463
1525 PW 1 20SE1967 0.41777
1 1528 SB 1 20SE1967 1.15507
I 1531 GH 1 25SE1967 0.10144
( 1231 E 3 16CY1964 0.07093
1234 B 3 18JM964 C.C3936
1236 C1 1 8JN1964 0.01925
1239 D 4 11JM564 C.C5570
1242 E 3 13JN1964 0.00150
1245 F 2 11JM964 0.01383
1441 B 6 24JL1964 0.00881
1252 C< 1 16JL1S64 C. 00558
1255 C 5 15JL1964 0.00513
1259 F 2 6JL1964 C.C0930
1264 C* 1 IOAU1964 O.C0193
1267 D 6 1BAU1964 0.00649
1273 C1 2 10SE1964 C. 00538
1278 D 6 18SE1964 0.00384
1284 E 6 17SE1S64 C. 04448
1289 C 7 140C1964 0.00440
1293 0 2 15CC1964 0.00472
1303 E £ 13GC1964 C. 00560
1310 C> 2 10NO1964 C. 00227
1313 0 3 9N01964 0.00386
1317 E 1 6N01964 O.OOS74
1325 F 3 CN01964 0. 00252
1338 C 3 28HR1967 7.40466
1341 A 3 19AP1967 1.89840
1344 C 3 25AP1967 0.63694
1347 E 2 23AP1967 1.93480
1369 A 4 4MY1967 0.02236
1372 C 5 5MY1967 0.00709
1375 E 3 7NY1961 C. 10106
I4in A A ?4NYis 1 2CC1967 C. 05589
1SZO kQ 1 USE1967 C. 03300
1523 DA 1 19SE1967 1.91882
1527 TR 1 20SE1967 -JIsO^S
1530 FR 1 24SE1961 C.38004
"49 (<6 1 40C1967 0.0£7*1
170
-------
1S51 ES 1 5PC1967 0.17573 t
l»« SG I 60C1967 1.17509 )
1351 (11 2 21AP1967 24.32893 1
HIS SH 2 22MY1967 0.20218 )
1399 PU 2 5KY1967 3.37323 )
1354 GH 2 25AP19t7 56.72563 )
1349 CI 2 1SAP1967 29.ns?51 1
H2J HA 2 25KY1967 9.59195 1
1428 M
1427 L
1350 B
1401 M
1352 K
1429 k
1406 G
_ 1424 K
H rfSftiS— ftc^f-
f^ 29HY1S67^_C.I8160_
3-2 6KV1967 10. Blast
" 2 21AP1967 10.85724
5 2 12MY1967 5.67595
3 2 13MY1967 0.00809
^ 2 23MY1967 0.45108
>> i 25KY1961 4.90274
1
L1550 OR 1 50C1967 C. 49560
1426 HS 2 29HY1967 C. 19948
1417 HO 2 22MY1967 32.06221
1425 RA 2 25HY1967 6.36548
1402 TR 2 6HY1967 8.92354
1353 FR 2 23AP1567 14.17721
1407 SH 2 14HY1967 18.82127
1422 CA 2 23MV1967 C. 60287
Stephanod-Lscus hantzschii Grun.
Stephanodiscus hantzsahii Grunow in Cleve and Grunow, K. Svenska Vet.-
Akad. Handl., Ny Foljd, 17(2):115. 1880.
Stephanodiseus hantzschianus Grun. i,n Van Heurck, Syn. Diat. Belgique
p. 216, pi. 95, fig. 10. 1885. '
Cells circular in valve view and square in girdle view. Vegetative
cells may occur singly or in colonies of up to 100 cells. Valves of speci-
mens from Lake Michigan 8-22y in diameter with very slightly concave cen-
ters. Radial striae in biseriate to quadriseriate fascicles at the valve
margins, becoming uniseriate near the center of the valve. Puncta in the
radial striae fine, somewhat difficult to resolve, 22-24 in lOy. Fascicles
widely separated by a hyaline area that is not apparently thickened. The
marginal spines occur regularly at the ends of each hyaline ray and arise
from noticeably thickened bases. Placement of the spines is very regular
in this taxon and they are irregular or missing only on grossly abnormal
specimens. Fascicles and spines 8-11 in 10u at the margins of the valves.
Our concept of this taxon is based on specimens examined by Grunow in
the Van Heurck exsiccatae (Types du Synopsis no. 482). It closely re-
sembles several of the other smaller species of Stephanodiscus and ade-
quate optical equipment, used with care, is necessary to distinguish it
from these species. On the basis of our observations it is rare in the off-
shore flora and only becomes abundant in harbors and eutrophied inshore areas.
6*3 STH1NTZS THT Hfl OF STAT TPKS 199
1 3540 CH
146908 CH
146921 r.H
146909 CH
146906 CH
(46922 CH
146761 FV
1226 C 7
1229 0 5
1232 E 5
1235 f. 7
1237 C1 2
1240 0 6
1244 F 1
1440 B^
. 1251 C 7
^ 1354 Q 2
1257 t 3
1267 0 6
1274 0 I
(_ 1277 p 4
1281 £ 3
1295 0 4
1304 f 1
1312 0 2
1320 £ 4
1339 C 5 i
1346 C 7 i
1376 E 5
1416 E S 2
1433 C_A 1
11HY187? 0.19569
OE1945 0.01007
22N01946 0.01967
MR1947 0.01366
HY1947 0.08628
Z1AU1947 0.00485
J7MY1938 O.OC273
16HY1964 0.05327
14HY1964 0.02749
16HY1964 0.06087
16JN1964 0.03954
8JN1964 0.04383
10JN1964 0.05829
11JN1964 0.03399
L1JL1964 O. 01474
16JL1964 0.00869
L5JX1964 0.01149
L4JL1964 0.00957
ft,H ;«»i4 0.00764
L8AU1964 0.00216
>2Ji£196.4 0.00653
7SE1964 0.01408
L8SET364 0. C0620
L6SE1964 0.00392
15SE1964 0.01747
L50C1964 0.01189
I3nf. 1Q64 0.00716
10C1964 O.CC247
6NH1964 0 00912
8NQ1964 O.C0310
7N01964 0.00207
BMR1967 0.04365
1AP1967 0.07878
6MY1967 0.11525
8HY1967 O.C7654
7JN1967 0.00646
|_
1 3507 CH 19FE18S1 0.06792
(46914 CH 19AP1946 0.55524
146920 CH 200E1946 0.00431
146912 CH AP1947 0.08049
146919 CH 5JN1947 0.02124
46772 EV 18AP1938 0.00710
1224 B 4 18*11964 0.00196
1227 C" 2 13WY1964 0.00110
123C E 2 16HY1964 0.07408
1233 B 3 5JN2964 0.02620
1439 E 6 5JN1964 C. 10989
1238 D 3 11JN1964 0.01600
1241 E 2 13JN1964 C. 15081
1245 F 2 11JN1964 0.1C027
1441 B 6 24JL1964 C.01542
1252 C< 1 16JL1964 0.01116
1255 0 5 15JL1964 0.01540__
1258 f 1 6JL1964 0.04248
1264 C- 1 10AU1964 0.01545
1268 E 2 15AU1964 0.00821
1772 Ci 1 1TKF.1964 0.05336
1275 0 2 17SE1964 0.01290
1378 0 6 1BSE1964 0.00769
1283 E 5 16SE1964 C. 00613
( 13B7 F 3 15SE1964 0.01501
1297 0 6 140C1964 0.00571
1301 E 4 130C1964 0.00442
1306 F 3 110C1964 0.00277
,3n« C' 1 10N01964 0.00643_
ilia D 3 9NOI964 0.00193
111 B E 2 7N01964 0.00190__
1323 F I 6N01964 0.00139
1337 c 3 2MR1967 0.00147
7340 C 7 28HR1967 0.81443
,,4, 46 19AP1967 0.35710
1^47 E 2 23AP1967 0.00976
1371 c 3 4HY1967 0.00231
1408 A 3 23HY1967 0.01342
1412 C 5 31NY1967 0.00*21 -
!431 A 3 12JN1967 0.00772
,4,4 f 5 17JN1967 0.00299
1
46910 CH OC1945 C. 00109
46924 CH 10MY1946 0.22927
46905 CH JA1941 C.OC613
46916 CH 4HY1947 C. 00577
46907 CH JL1947 C.00394
46756 EV 27AP1938 0.00336
1225 C 6 15MY1964 C. 03136
1228 0 2 14NY1964 0.01752
1231 E 3 16HY1964 O.C3669
1234 B 3 18JN1964 0.02530
1236 C> 1 8JM964 C. 03151
1239 D 4 1UN1964 C. 00116
1243 E 6 13JK1964 C. 01670
1246 F 3 11JM964 0.02988
1250 C 6 10JU964 0.19733
1253 C1 2 16JL1964 0.00685
1256 E 2 14J11964 0.03297
1259 F 2 6JL1964 0.01859
1265 C- 2 10AU1964 O.OC894
1269 E 3 15AU1964 0.00274
1273 C- 2 10SE1964 0.01613
1276 D 3 16SE1964 0.01118
1279 E 1 16SE1964 C. 01178
1264 E 6 17SE1964 C. 00635
1292 D 1 150C1964 0.00373
1298 E 1 120C1964 O.OC269
1303 E 6 130C1964 0.01119
1307 B 6 N01964 O.CC361
1311 D 1 8ND1964 O.C0258
1315 0 5 9N01964 0.00910
1319 E 3 7N01964 O.OC262
1338 C 3 28HR196J. C.01190
1344 C 3 25AP1967 0.00165
1374 E 2 7HY1967 0.02092
1415 E 3 28MY1967 C.CC450
1435 C 7 13JN1961 C.C1263
I
171
-------
1*38 E 5 14JN1967 0.01452
1454 F S 15JL1967 0.00200
1532 A 3 18SE1967 0.00329
1*541 F 2 110C1967 C. 00532
1379 GS 3 9MY1967 0.00309
138^ Gg 7 10HY1967 Q.QQ267
1387 GS11 12HY1967 0.00396
1395 fiSJ9 13HY1967 0-00705
1554 GS 1 30C1967 0.00356
1565 K<}13 5QC1967 0.01014
1568 GS16 50C1967 0.00289
1571 £<;I9 6QC1967 0.00117
1574 GS22 60C1967 0.00288
1522 BH 1 18SE1967 0.21334
1S57 IB 1 20SE1967 0.00629
1548 CA 1 30C1967 0.01272
155* sr. i Ann*SA7 n.nl4AQ
1351 HI 2 21AP1967 0.01241
1418 SH 2 22MY1967 0.13997
1399 PH 2 5MY1967 0.00680
1352 KW 2 21AP1967 0. 03436
1429 HL 2 29KY1967 3.22752
1405 E5 2 12CY1967 0.01935
1406 GB 2 13MY1967 0.16983
I 1424 KN 2 25MY1967 0.03997
1451 C 7 16JL1967 0.05512
| 15Q4 A 3 2BAU1967 0.00741
1537 E 3 24SE1967 0.00431
1543 E 5 IOOC1967 0.00718
1380 GS 4 9MY1967 0.01177
1384 GS 8 10MY1967 0.00555
1389 GS13 12MY1967 0.00258
1396 GS20 13HY1967 0.00296
1555 GS 2 30C1967 0.00353
1566 6514 50C1967 0.00734
1569 GS17 50C1967 C. 00297
1572 GS20 60C1967 0.00631
1575 GS28 60C1967 0.00387
1520 HO 1 18SE1967 0.04243
1523 RA 1 19SE1967 0.00923
1531 GH 1 25SE1967 0.00845
1549 H« 1 40C1967 .0.01370
11?a MM 3 ?C«V1*367 0-48209
1427 LU 2 29MY1967 0.03632
J3«n RH 1 19AP1967 1.05725
1402 TR 2 6HV1967 C. 11912
1353 FR 2 23AP1967 0.04219
1403 CA 2 10HY1967 0.03923
1407 SH 2 14MY1967 0.04180
1422 GA 2 23MY1967 C. 02044
1452 E 2 14JL1961 C.OC852
1506 A 6 29AU1967 C.OC523
1540 C 5 40C1-367 C.OC49O
1378 6S 2 9KY1967 C.OC421 I
1381 GS 5 10MY1967 0.01431
1385 CS 9 10MY1967 C.OC706
1392 GS16 12HY1967 0.003O8
1397 GS21 13MY1967 C.OC196
1563 6S11 50C1967 0.00234
1567 GS15 50C1967 C. 00476
1570 6518 50C1967 C. 00992
1573 «S21 60C1967 C. 00560
1544 CU 1 20C1967 C. 02383
1521 SH 1 18SE1967 C. 03462
1526 KG 1 20SE1967 C. 00569
1545 NL 1 20C1967 0.23650
1550 MR 1 50C1967 C. 07434
IdJft I.S 2 29MY1S67 C. 18898
1417 HO 2 22HY1967 4.48632
1425 RA 2 25MY1967 C.OC884
1400 SB 2 6MY1967 0.25614
1354 EH 2 25AP1967 1.49133
1404 HI 2 10MY1967 0.01270
1349 CI 2 19AP1967 C. 05748
1423 UA 2 25MY1967 C. 07708
Stephanodisous minutus Grun. ex Cleve and Moll.
Cyolotella minutula Kiitz., Bacill., p. 50, pi. 2, fig. 3. 1844.
Stephanodisous minutus Grunow ex Cleve and Moller, Diatoms, #221. 1879.
Stephanodisous astraea var. minutula Grun. in V. H., Syn. Diat. Belgique,
pi. 95, figs. 7, 8. 1882.
Stephanodisous balatonis Pant., Res. Wiss. erforsch. Balatonsees, p. 105,
pi. 15, fig. 324. 1902.
Cells circular in valve view and rectangular in girdle view. Vegeta-
tive cells always occur singly. Valves of specimens from Lake Michigan
4-22y in diameter with strongly concave centers. Radial striae in biseriate
fascicles at the valve margins, becoming disorganized near the center of the
valve. Puncta in the radial striae fine, more than 30 in lOy. Fascicles
are separated by narrow but obviously thickened radial ribs. The marginal
spines arise at the ends of each of these ribs. Placement of the spines is
very regular in this species and they are irregular or missing only in grossly
abnormal specimens. Fascicles and spines 15-18 in lOy at the margins of the
valves.
Our concept of this taxon is based upon the material on Cleve and Moller
slide #221. Most recent workers have considered this entity to be a variety
of S. astraea. The reason for this is difficult to discern as this species
has only a superficial resemblence to S. astraea. Its morphology is some-
what similar to that of S. tpansilvanicus but it differs from that taxon by
its finer structure and in that the radial striae are always in fascicles
of two.
Although S. astraea var. minutula has been widely reported, the confusion
surrounding this name makes it difficult to determine the actual distribution
of the taxon we freat here. In our experience in Lake Michigan it is a minor
component of the offshore flora and only becomes abundant in estuaries and
eutrophied inshore areas of the lake.
172
-------
TCT NC DF SU
160973 CH L£76__JU22_362_J
14691'' fH 17JA1946 0.00055 )
146923 f.H 7?Nni94A O.lnojn
(46909 CH MR1947 0.00911
146906 CH KY1947 1.55304
(46913 CH 6AU1947 0.02092
(46743 EV 70JN1937 0.71SJH
(46768 EV' 16I-R1938 0.01470
(46756 EV 27AP193S 0.18606
(46766 EV 14BE193B n.n]SR4
-
1^25 C 6 15MY1964 0.01176
1228 D 2 14MY1964 0.00973
1231 E 3 16HY1964 O.B5608
1234 B 3 18JN1964 0.02530
1237 C' 2 8JM964 C.C5672
1240 D 6 10JN1964 0.01381
1243 E 6 13JM964 0.03550
1246 F 3 11JN1964 O.K1124
1250 C 6 10JL1964 0.02467
1253 C- 2 16JL1964 O.CC913
1256 E 2 14JL1964 0.08976
1259 F 2 6JL1964 0.01549
1262 B 3 17A01964 C.C0210
126fc 0 3 18AU1964 0.0070Z
1269 E 3 15AU1964 0.34534
1272 C' 1 10SE1964 0.00410
1279 E 1 16SE1964 O.OC785
12B3 E 5 16SE1964 0.01226
1288 B 3 150C1964 O.OC218
1292 D 1 150C1964 0.00373
1296 0 5 140C1964 O.C0787
1299 f C 12DC1S64 0.01571
1305 F 2 11DC1964 0.00173
1310 C1 2 10N01S64 C.OC227
1313 D 3 9N01964 0.00193
1318 E 2 7NQ1964 C. 00380
1321 E 5 7N01964 0.00319
1374 F •> 6N01964 C.OC699
1338 C 3 28MR1967 1.38837
1341 A 3 19AP1967 0.35364
1344 C 3 Z5AP1967 0.09761
1347 E 2 23AP1-367 1.13812
1369 A 4 4fYl967 0.15282
1377 r. 5 5MY1967 0.22698
1375 E 3 7MY1567 0.24543
1409 A 4 23MY1967 O.OC29S
1412 C 5 31MY1967 0.01684
141 1 16JL1964 C. 02232 I
1255 D 5 15J11964 0.04363 )
1258 F 1 6JL1964 C. 02124 )
1261 B 3 2AU1964 0.00196 J
1265 C< 2 1CAU1964 O.CC671 1
1268 E 2 15AU1964 C. 19149 )
1271 C 7 22SE1964 0.00653 1
1274 D 1 175E1964 C.OC469 I
1262 E 4 16SE1964 0.01108 I
12B6 F 2 15SE1964 C.C2189 )
1289 C 7 140C1964 C.CC44C 1
1294 0 3 15CC1964 C. 00330 )
1298 £ 1 120C1964 C.CC808 1
1301 E 4 130C1964 C.C1325 )
13C9 C> 1 10N01964 C. 00161 I
1312 D 2 8NC1964 C.CC621 1
1317 E 1 6NC1964 0.00383 1
1320 E 4 7NC1964 C.C1034 )
1323 F 1 6NG1964 C.OC418 1
1337 C 3 2&R1967 C. 41153 )
1340 C 7 28MR1967 1.27255 )
1343 A 6 19AP1967 C. 63221 )
1346 C 7 21AP1961 C. 31245 1
1368 A 3 4MV1967 C. 05655 )
1371 C 3 4HY1967 C. 03232 1
1374 E 2 7HY1967 2.71966 )
1408 A 3 23MY1967 C.C1769 1
1411 C 3 31MY1967 C.C0410 )
1414 E 2 28MY1967 C. 01008 )
1431 A 3 12JN1967 C. 01030 )
1434 C 5 17JN1967 C.C1794 1
1437 E 3 15JN1967 C.00538 >
1447 A 4 HJL1967 C. 03509 1
1451 C 7 16JU967 C. 01772 )
1454 E 5 15JL1967 C.C1600 )
1512 E 3 1SE1967 0.36909 )
1534 A 6 19SE1967 C.OC931 1
1537 E 3 24SE1967 C. 02588 I
1540 C 5 40C1967 O.OC993 1
1543 E 5 100C1967 C. 06465 )
1381 GS 5 10MY1967 C. 04055 I
1384 GS 8 10KY1967 C. 36972 1
1387 CS11 12«Y1967 C. 34854 )
1 1393 CS17 13KY1967 0.00822
1 1396 GS20 13MY1967 C. 02886
1 1554 CS 1 3CC1967 C. 06695
1 1557 CS 4 30C1967 C. 01495
( 1560 CS 8 40CIS67 C.C1889
1563 GS11 50C1967 C. 00234
1570 GS18 50C1967 0.00992
1573 CS21 60C1S67 C. 10527
1544 HI 1 20C1967 0.17633
1521 SH 1 18SE1967 C. 11539
1526 fO 1 20SE1967 C. 19912
1529 KM 1 20SE1967 0.26362
1545 HL 1 20C1967 1.08115
1428 KU 2 29MY1967 C. 03013
1425 PA 2 25MY1967 C. 18566
1353 FR 2 23AP1967 C. 44304
1403 CA 2 10MY1967 2.09232
1407 SM 2 14MY1967 C. 09554
1406 GB 2 13HY1967 0.04313 1419 EU 2 tifnitoi t.icsos
< 147] Ch 2 23HY1967 0.10409 > 1 1422 GA 2 23MY1967 0.05620
1 1424 KH 2 25MY1967 0.14655 ) (
Stephanodiseus niagarae Ehr.
Stephanod-isous niagarae Ehrenberg, Ber. Akad. Wiss. Berlin 1845:80. 1845.
Cells circular in valve view and rectangular in girdle view. Vegeta-
tive cells always occur singly. Valves of specimens from Lake Michigan 42-
94U in diameter with slightly concave centers. Radial striae in biseriate
173
-------
fascicles near the valve margins, becoming uniseriate near the centers.
Puncta in the radial striae coarse, 12-16 in lOy. Fascicles closely packed
with only small hyaline spaces between them. The coarse spines of this
species are sub-marginal and irregularly arranged, usually between each 2-4^
fascicles. Fascicles 5-8 in 10u at the valve margin. In this taxon a promi-
nent marginal area of fine, irregularly arranged puncta is present. The
spines arise from the inner margin of this zone and it is separated from the
fascicles by an unornamented space.
This species much resembles S. astraea (Ehr.) Grun. and a good deal of
speculation has been put forth in the literature regarding the relationship
between the two taxa and about their distributions. Our concept of S.
niagarae is based upon specimens attributed to Bailey in the Academy of
Natural Sciences of Philadelphia (ANSP 42768) which are believed to be de-
rived from the original material from Niagara Falls from which this taxon
was described.
642 STN1AGVH TOT NO OF STATIONS 222
160973 CH 1876 0.16895 )
14691 n CM OC1945 0.00437 1
146914 CH 19AP1946 0.03630 )
(469?n CH 20DE1946 O.OG585 I
<46912 CH AP1947 0.04599 I
146919 CH 5JN1947 0,00607 )
146758 EV 5JN1937 0.05706 1
146745 FV 3JL1937 0.08359 1
(46757 EV 25JL1937 0.06259 1
14*76"; FV 30AU1937 0.03904 >
146760 EV 22SE1937 0.07386 )
146748 EV 130C1937 0.10675 )
146763 EV 16MR1S38 0.02940 )
(4677? FV 16AP1938 0.06388 1
(46761 EV 27MY193B 0.10902 1
1-1225 C 6 15MY1964 0.00392 1
I 1228 D 2 14MY1964 0.01752 )
1731 E 3 16MY1564 O.C]4]>>H 1
1236 C1 1 8JN1964 0.01225 1
1241 E 2 13JN1964 0.00739 1
1244 f I 11JN1964 0.00110 1
1247 B 3 14JL1964 0.00427 1
1257 E 3 14JL1964 0.00718 )
1260 f 3 6JL1964 0.00382 I
1266 0 3 18AU1964 0.00351 I
1285 F 1 15SE1964 0.01165 1
1302 E 5 13CC1964 0.01620 )
1318 E 2 7N01964 0.00190 )
1323 F 1 6N01964 0.00557 I
1337 C 3 2MR1S67 0.00294 )
1340 C 7 28MR1967 0.01018 1
1343 A 6 19AP1967 0.00347 )
1346 C 7 21AP1967 0.01869 }
1368 A 3 4MY1S67 0.15708 )
1371 C 3 4HY1967 0.08080 1
1374 E 2 7MY1967 0.18828 )
1408 A 3 23MY1967 0.16992 )
1411 C 3 31MY1967 0.08206 )
1414 E 2 28MY1967 0.06045 )
1431 A" 3 l?JNl?67 0.01287 )
1434 C 5 17JN1967 0.57722 •
1417 F 1 15.IN1967 0. 13458 1
1450 C 5 16JL1967 0.08565 )
1504 A 3 28AU1967 0.00247 )
1511 E 2 1SE1967 0.00921 )
1537 E 3 24SE1967 0.06469 1
1377 GS 1 SMY1967 0.05541 1
13BO GS 4 9MY1967 0.04540 1
1383 GS 7 10MY1967 0.07485 )
1386 GS10 12MY1967 0.16087 1
1389 GS13 12HY1967 0.18049 )
139? CS16 17MY19S7 0.73659 1
1395 GS19 13MY1967 0.69873 )
1398 GS?2 14MY1967 0.04251 )
1556 GS 3 30C1967 0.01043 I
15A3 GS11 50C.1967 0.01637 )
1566 GS14 50C1967 0.01835 )
1569 GS17 50C1967 1.76891 1
1572 GS20 60C1967 0.31545 )
1575 GX?B 60C1567 2.70940 )
1546 LU 1 20C1967 0.02501 1
15?? BH 1 18SE1967 0.00365 I
1528 SB 1 20SE1967 0.02888 )
1549 MO 1 4DC1967 0.02741 1
1550 MR 1 5CC1967 1.32573 )
14?6 MS ? 29HY1967 0.07349 )
1417 HO 2 22MY1967 0.10468 )
I 1475 RA'2 25MY1967 0.02652 )
I 3540 CH 11MY1879 0.01864
146921 CH 23N01945 C. 00776
(46924 CH 10MY1946 0.06067
(469C5 CH JA1947 0.00613
(46916 Ch 4HY1947 0.02443
(46?C7 CH JL1947 0.03205
146771 EV 11JN1937 0.03804
146770 EV 9JL1937 0.11331
(16747 EV 1AU1937 0.06436
(46769 EV 7SE1937 C. 04342
(46750 EV 24SE1937 0.01885
(46767 EV 270C1937 0.00387
(46762 EV 18MR1938 0.11028
(46756 EV 27AP1938 0.05541
(46766 EV 14DE1938 0.01S84
1226 C 7 16MY1964 C. 01903
1229 0 5 14MY1964 ,0.00634
123? E 5 16NV1964 0.01217
1237 C' 2 8JN1964 0.01547
1242 E 3 13JN1964 O.C0599
1245 F 2 11JN1964 C. 00692
1255 0 5 15JL1964 0.00770
1258 F 1 6JL1964 0.00472
1262 B 3 17AU1964 0.00210
1278 0 6 18SE1964 0.00384
1288 B 3 15CC1964 0.00218
1304 F 1 11GC1964 0.00494
1320 E 4 7N01964 0.00207
1324 F 2 6NC1964 0.00699
1338 C 3 28MR1967 0.0224B
1341 A 3 19AP1967 0.01953
1344 C 3 25AP1967 0.01324
1347 E 2 23AP1967 C. 04065
1369 A 4 4MY1967 0.32800
1372 C 5 5MY1967 0.64548
1375 E 3 7MY1967 0.12512
1409 A 4 23KY1967 0.05356
1412 C 5 31MY1967 0.51772
1415 E 3 28KV1967 0.07870
1432 A 4 13JN1967 0.16093
1435 C 7 13JN1967 0.01579
143B E 5 14JN1967 0.07262
1452 E 2 14JL1967 0.00639
1509 C 5 2SE1967 C.01009
1512 E 3 1SE1967 0.01963
1538 E 5 23SE1967 0.01105
1378 GS 2 9MY1967 0.03364
1381 GS 5 10PY1967 0.02385
1384 GS 8 10MY1967 0.25880
1387 GS11 12HY1967 0.25349
1390 GS14 12MY1967 0.32883
1393 GS17 13KY1967 0.46844
1396 GS20 13MY1967 0.49203
1554 GS 1 30C1967 0.01423
1559 GS 7 40C1967 C. 01049
1564 GS12 50C1967 0.01152
1567 GS15 50C1967 C. 55570
1570 GS18 50C1967 0.87267
1573 GS21 60C1967 0.36509
1544 HU I 20C1967 0.24067
1520 HO 1 18SE1967 0.09901
1526 MO 1 20SE1967 0.01138
1531 GH 1 25SE1967 0.00845
1551 ES 1 50C1967 0.11183
1553 SG 1 60C1967 2.70270
1351 MI 2 21AP1967 0.01241
1418 Sh 2 22MY1967 0.01555
1399 Ph 2 5HY1967 0.04761
( 3541 CH 1FE1881 1.29121
(46917 CH 12JA1946 0.00166
(46923 CH 22N01946 O.C3497
(46909 CH MR1947 0.01366
(469C6 CH MY1947 O.C3982
(46922 CH 21AU1S47 C. 02859
(46743 EV 20JN1937 C. 11989
(46764 EV 17JL1937 0.17728
(46763 EV 23AU1937 C. 0(088
(46752 EV 15SE1937 C. 04354
146744 EV 60C1937 O.OC468
146749 EV 12MR1936 C. 07282
(46751 EV 30MR1936 0.03350
(46759 EV 19KV1138 C. 31735
1224 B 4 18MY1964 C. 00784
1227 C< 2 13MY1964 C.CC110
123p E 2 16MY1C64 C. 02074
1234 B_ 3 18JM964 C.C2812_L
1238 0 3 11JN1964 O.CC600
1243 E 6 13JN1964 C.01044
1246 F 3 11JN1964 C.CC598
1256 E 2 14JL1964 C.CC366
1259 f 2 6JL1S64 C.C0310
1264 C< 1 10AU1964 C.CC386
1284 E 6 17SE1964 C.CC318
1301 E 4 130C1964 C.00683
1305 F 2 11CC1964 O.CC345
1321 E 5 7NG1964 0. 00638
1336 C 3 27JA1967 0.00389
1339 C 5 28MR1967 C. 17146
1342 A 4 19AP1967 0.03248
1345 C 5 25AP1967 C. 15009
1348 E 5 23AP1967 0.01919
1370 A 6 3MY1967 0.00691
1373 C 7 5HY1967 C. 15118
1376 E 5 6MY1967 C. 01968
1410 A 6 24MY1967 C. 01691
1413 C 7 25MY1967 C.C5370
1416 E 5 28HY1967 0.06123
1433 C 3 17JM1967 C. 02584
1436 E 2 15JN1967 C. 16092
1449 C 3 16JL1967 C. 24456
1453 E 3 15JL1967 C.C8847
1510 C 7 29AU1967 O.OC316
1532 A 3 18SE1967 C. 00329
1542 E 3 11DC1967 0.02034
1379 £S 3 9HY1967 C. 13308
1382 GS 6 10MY1967 0.03886
1385 £S 9 10MY1967 C. 02119
1388 GS12 12NY1967 O.B4465
1391 GS15 12HY1967 C. 83800
1394 GS18 13MY1967 C. 9*329
1397 GS71 13CY1967 C. 77832
1555 GS 2 3DC1967 C.OC353
1560 GS 8 40C1967 C.CC945
1565 GS13 50C1967 C. 01014
1568 C-S16 50C1S67 C. 11255
1571 GS19 60C1967 C.yn,Kt,
1574 CS22 60C1S67 C. 22436
1547 KS 1 20C1967 C.OC798
l'Zl SH I 18SE1967 C.OC577
1527 TR 1 20SE1967 C. 01887
15*5 kL 1 20C1967 C. 04054
1552 SH \ 60C1967 1.16210
1428 HU 2 29MY1967 C. 67492
1427 LU 2 29MY1967 0.254?4
1350 BH Z 19AP1967 C. 02643
1401 HO 2 6MY1967 C. 02352
174
-------
KM 2
W. 2
ES 2
CB 2
CH 2
KN 2
21AP1967
29HY196J
12HY1967
13HY1967
23MY1967
25MY1967
C. 02577
C. 44591
C. 59985
C. 86265
C. 01735
C. 06661
Stephanodiseus niagarae var. magnified. Fricke
Stephanodiseus niagarae var. magnifioa Fricke, A. Schmidt's Atlas Diat
pi. 227, figs. 10-13. 1901.
Differs from the nominate variety in its more robust structure. The
puncta in the fascicles are closely packed and appear hexagonal in surface
focus and circular in deep focus. Valves of Lake Michigan specimens are from
42-106y in diameter. Puncta in the radial striae 10-12 in lOy. Fascicles
4-5 in lOy, becoming indistinct near the marginal zone due to irregular place-
ment. The submarginal spines are very long and coarse and tend to be somewhat
more regular in their placement than in the nominate variety. In the larger
specimens a second circlet of smaller spines is found on the valve surface,
surrounding the sunken central portion of the valve.
This entity reaches its greatest abundance in eutrophic, hardwater
lakes in western North America. Its occurrence in Lake Michigan is limited
to eutrophied inshore areas and estuaries.
641 STNIAGAR TGT NO OF STATIONS
(60973
<4676C
( 1238
I 1369
1 1408
( 1382
( 1396
1 1529
< 1417
CH
EV
D 3
A 4
A 3
GS 6
GSZO
KM 1
HO 2
1876
22SE1937
11JN1964
4MY1967
23MY1967
10MY1967
13MY1967
20SE1967
22CY1967
0.23618
0.00492
O.OC600
0.00745
O.OC894
0.00278
O.OC518
0.01199
0.00374
(46S16
1223
1268
1370
1416
1391
( 1544
( 1531
C 1350
CH
a 3
E 2
A 6
E 5
SS15
HU 1
GH 1
BH 2
4WY1S47
18HY1964
15AU1964
3HY1967
28KY1967
12HY1967
2CC1967
25SE1967
19AP1967
C. 00068 )
0.00156 )
C. 00274
0.00230
0.00875
0.02394
0.01191
0.00845
0.00441
46763
1224
1322
1372
1377
1392
1520
1428
1406
EV
8 4
E 6
C 5
GS 1
CS16
HO 1
CU 2
CB 2
23AU1937
18HY1964
7NG1964
5HY1967
9HY1961
12MY1967
18SB1967
Z9HY1967
13NY1967
C. 02029 )
C.OC196 )
O.OG333 )
0.00709 )
C.OC396 I
C. 02157 )
C.C3300 )
C.OC301 1
0.22645 )
Stephanodiseus subtitis (Van Goor) A. Cleve
Melosira subtiZis Van Goor, Recueil Trav. Bot. Ne'erlandis, 21:359, fig. 8.
1924.
Stephanodiseus subtilis (Van Goor) A. Cleve-Euler, K. Svenska Vet.-Akad.
Handl., Fjarde Serien, 2(1):54, fig. 72. 1951.
Cells circular in valve view and rectangular, elongate in the pervalvar
axis, in girdle view. Vegetative cells always occur in filamentous colonies,
joined at the valve surfaces. Cell walls are very lightly silicified, and
the frustules are often deformed in prepared collections. Valves of speci-
mens from Lake Michigan 6-22y in diameter, only slightly concave at the cen-
ter. The radial striae are contained in biseriate fascicles near the mar-
gins of the valve. The fascicles gradually taper and become uniseriate as
they approach the center of the valve but retain their identity. The center
of the valve is usually marked by a rosette of puncta. Puncta in the radial
striae very fine, barely resolvable with the light microscope, about 40 in
10u. The fascicles are separated by narrow, but appreciably thickened radial
ribs. A very small marginal spine occurs at the termination of each rib.
Fascicles 14-16 in lOy at the valve margin.
175
-------
This species resembles S. tenuis in size and general morphologic struc-
ture but differs from that taxon in occurring in colonies, having biseriate
rather than multiseriate fascicles of striae on the valve surface, and by its
finer structure and ornamentation. Its structure also much resembles that
of S. dconasi Hust. (1949) but S. subtilis does not approach the maximum size
of that taxon and has much finer ornamentation.
This species is apparently a recent introduction into the flora of Lake
Michigan and has only been found in quantity in eutrophied areas that also
have considerable chloride contamination. Previous reports of its occurrence
indicate that it flourishes only in such situations.
7U ThN*M.-_..ItIJ!l£UlE..S3«LIPNi . _
(46917 CH 12JA1946 0.00028 ) [46=15 CH 20FE1946 C.C1707 ) (46924 CH 10KY1946 O.C4585 )
(46923 CH 22N01946 0.01311
(46916 CH 4MY194_7 O.OC17C
(46758 EV 5JM937 0.73*61
(46757 EV 25JL1927 C.16850
(46752 EV 15SE1937 0.04354
(467«,i; EV 12MR1938 0.19420
(46756 EV 27AP1938 O.OC168
( 1236 C' 1 8JN1964 0.00350
1241 E 2 13JN1964 0.00148
1232 _£_• L 16JL1964 0.00279
1255 D 5 15JL1964 0.0077C
1264 C' 1 10AU1964 0.00965
1272 C' 1 10SE1964 0.01642
1279 E 1 16SE1S64 0.07068
1268 B 3 150C1964 C. 00218
1298 E 1 120C1964 0.00539
1306 F 3 110C1964 0.00277
1311 D 1 81401964 0.00516
1316 0 6 9N01S64 0.00378
1319 E 3 7N01564 0.00262
1323 F 1 6N01964 0.00139
1341 A 3 19AP1967 0.00434
(
(
I
46920 CH 20DE1946 0.00031
46919 CH 5JNIS47 C. 00455
46771 EV 11JM937 0.00238
46747 EV 1AU1937 0.02475
(46750 EV 24SE1937 C. 01885
146762 EV 18MR1S38 C. 04411
"
...
1431 A 3 12JN1S67 0.00257 I
1435 C 7 13.INl<5ft7 0.00316 1
1447 A 4 11JL1967 0.00234 )
1454 E 5 1SJL1967 O.CC200 )
1534 A 6 19SE1967 0.00620 )
1537 E 3 24SE1967 0.01294 )
1543 E 5 100C1967 0.01437
1556 GS 3 3CC1967 0.03650
1559 GS 7 4QC1967 0.01049
1563 GS11 5CC1967 0.00468
1566 GS14 5CC1967 0.00183
1573 GS21 60C1967 0.00112
1547 MS 1 2CC1967 0.00798
1522 BH 1 1SSE1967 2.56742
1527 TR 1 2CSE1967 1.00629
1530 FR 1 24SE1967 0.10001
1543 C* 1 3CC1967 0.01272
1550 MR 1 5CC1967 0.61950
1426 US 2 29MY1967 0.01050
1417 HO 2 22MY1567 O.C4P"!
1402 TR Z 6CY1967 0.08664
( 1354 GH 2 25AP1967 0.01036
( 1406 GB 2 13MY1967 0.00270
( 1423 UA 2 25MY1S67 0.04710
46761 EV 27MY1936 C. 00545
1237 C' 2 8JN1964 C. 00258
1243 E 6 13JN1964 C. 00209
1253 C' 2 16JL1964 0.00228
1256 E 2 14JL1964 0.00183
1444 8 6 19SE1964 0.00303
1277 D 4 18SE1S64 C. 00620
1284 E 6 17SE1964 0.00635
1295 D 4 150C1964 0.01784
1300 E 3 130C1964 C.C0358
1307 B 6 NC1964 C. 00361
1313 D 3 9ND1964 0.00193
1317 E 1 6N01964 C. 00574
1320 E 4 7N01964 0.00207
1324 F 2 6N01964 0.00466
1370 A 6 3MY1967 0.00230
1432 A 4 13JN1967 0.00255
143B E 5 14JN1967 C. 00726
1451 C 7 16JL1967 0.00197
1532 A 3 18SE1967 0.00657
1535 C 7 20SE1967 0.01288
1541 E 2 110C1967 0.07983
1554 GS 1 30C1967 0.08539
1557 GS 4 3DC1967 0.02990
1560 GS 8 40C1967 0.03306
1564 GSli 50C1967 C. 00165
1569 GS17 5QC1967 0.00149
1575 GS28 6CC1967 0.00129
1546 LU 1 2CC1S67 C. 13005
1523 RA 1 19SE1967 0.08303
1528 SB 1 20SE1967 0.50534
1531 GH 1 25SE1967 0.48183
1549 MC 1 40C1967 0.10963
1553 SG 1 6CC1967 0.02203
1351 Ml 2 21AP1967 0.00621
1350 BH 2 19AP1967 3.24222
1400 SB 2 6MY1967 1.33429
1429 ML 2 29PY1967 0.07432
1419 BU 2 23HY1967 0.01831
46909 CH HR1947 C. 01821 )
46922 CH 21AU1947 C.OC097 I
46764 EV 17JL1937 C. 41096
46763 EV 23AU1937 C.0405S
(46748 EV 130C1937 C. 02135
(46751 EV 30KR1S38 C.C3350
146766 EV 140E1S36 C. 01584
( 1240 C 6 10JN1964 C.CC460
1440 B 6 11JL1964 C.C1474
1254 D 2 15JL1964 C.CC383
1257 E 3 14JL1964 0.00239
1271 C 7 22SE1964 C.CC653
1278 0 6 18SE1964 C. 00384
1287 F 3 15SE1964 C. 01001
1297 D 6 140C1964 C.CC190
1305 F 2 110C1964 C.OC173
13C9 C- 1 10N01964 C.OC161
1314 D 4 9N01964 C.CC287
1318 E 2 7N01964 C.CC380
1321 E 5 7N01964 C.CC958
1339 C 5 28HR1967 C. 00312
1416 E 5 28HY1967 C. 00437
1433 C 3 17JN1967 C.C1292
1446 A 3 11JL1967 C. 00245
1452 E 2 14JL1967 C. 01277
1533 A 4 19SE1967 C.C2785
1536 E 2 J4SE1967 C. 01091
1542 E 3 11OC1961 C. 02034
1555 CS 2 30C1967 C. 01059
1558 CS 5 4CC1967 0.00793
1561 GS 9 40C1967 C. 00587
1565 C-S13 50C1967 C. 00507
1571 GS19 60C1967 C. 00059
1544 HI 1 20C1961 C. 16203
1521 SH 1 I8SE1967 C. 04616
1526 CO 1 2CSE1967 1.18336
1529 Kb 1 20SE1967 C. 09593
1545 ML 1 2QC1967 C. 29056
1551 ES 1 50C1967 C.C3994
1428 HI 2 29MY1967 C. 53030
1427 LU 2 29WY1967 C. 02421
1401 CO 2 6MY1967 C.C294C
1352 KK 2 21AP1S67 0.01718
1349 CI 2 19AP1967 C.OC359
1422 CA 2 23HY1967 C.C1533
Stephanodisaus term-is Hust.
Stephanodisous tennis Hustedt ex Huber-Pestalozzi, Binnengew., Vol. 16,
Teil 2, Halfte 2, p. 411, pi. 122, fig. 506. 1942.
Cells circular in valve view and rectangular in girdle view. Vegeta-
tive cells occur singly or in colonies. Valves of specimens from Lake Michi-
gan 12-25p in diameter without marked depression in the central portion.
Radial striae in multiseriate (usually 4-5) fascicles near the margin. The
fascicles gradually taper but retain their identity to near the center of
the valve. Some of the fascicles become uniseriate and end about one-quarter
the valve diameter from the center, others become sinuous and extend to near
the center of the valve. The center of the valve is often marked by a small
rosette of puncta. The fascicles are separated by narrow, but noticeably
176
-------
thickened ribs. The spines are small and very regular in their placement
one spine occurring at the end of each interfascicular rib. The spines have
apparently thickened bases. Structure of the entire valve fine and difficult
to resolve Puncta in the radial striae fine, about 24-30 in lOy. Fascicles
and spines 6-7 in 10y at the margins of the valves.
Because of its small size and fine structure this species is difficult
to distinguish from other small species of the genus, especially S. hantzschii
unless considerable care is exercised. In structure it most resembles S
tpansilvanicus but it is easily distinguished from that species by its smaller
size range and much finer structure.
_4A4 STTENUIS TCT KO CF S7AT1CHS 190
3507
46924
L46M9-
46906
46772
1225
1228
1231
1 1439
1241
1440
1250
1253
1256
1442
1272
1277
1289
1255
1302
1306
1311
1336
1339
1342
1345
1348
1370
1374
1416
1433
1438
145?
1533
1536
1539
1542
1384
1389
1392
H95
1398
1*»S7
1562
( ISAft
1569
1573
15*4
1546
1522
1526
1529
1545
1551
1551
1351
1418
1399
1400
1354
1405
1406
( 1421
1 1424
CH
CH
CH
CH
EV
D 2
E 3
B 6
E 2
B 6
C 6
C' 2
E 2
B 6
C1 1
D 4
C 7
0 4
E 5
F 3
D 1
C 3
C 5
A 4
C 5
E 5
A 6
£ 2
E 5
C 3
E 5
E •>
A 4
E 2
C 3
E 3
GS 8
GS13
GS16
£<:i 9
GS22
GS 4
GS10
GS14
GS17
GS?
MU
LU
BH
HO
KM
ES
PI 2
SH 2
PM 2
SB 2
GH 2
ES 2
GB 2
CH 2
KN 2
19FE1881
10MY1946
MR1947
MY1947
18AP1938
15MY1964
14MY1964
16HY1564
5JIM1964
13JN1964
11JL1964
10JL1964
16JL1964
14JL1964
2AU1964
10SE1S64
18SE1964
140C1964
15DC1964
13QC1S64
110C1964
8N01964
27JA1967
28MR1967
19AP1967
25AP1967
23AP1967
3MY1967
7KY1967
28MY1967
17JN1967
14JN1S67
14JL1967
1SSE1967
24SE1967
40C1967
110C1967
1CMY1967
12MY1967
12CY1967
1 »MY1967
14MY1967
30C1967
50C1967
SOC1967
6GC1967
20C1967
2001967
1BSE1967
20SE1967
2CSE1967
20C1967
50C1967
60C1967
21AP1967
22MY1967
5MY1967
6MY1967
25AP1967
12MY1967
13MY1967
23MY1967
25HY1967
0.01132
0.27513
0.03643
0.14336
0.02839
O.C1568
0.00584
0.00245
0.03596
0.00296
0.01843
0.16033
0.00228
0.00733
0.00341
0.02463
C.C0620
0.00440
0.00595
0.00405
0.00277
0.00774
0.00193
0.05300
0.16422
0.00780
1.24743
0.07366
0.02391
0.27772
0.03875
0.00363
0.01064
0.14855
0.03545
C. 01006
0.00509
0.00185
0.00516
0.11095
0.45212
0.00607
0.00747
0.00493
0.00734
0.00149
0.03136
0.24067
1.20042
13.88742
0.2L619_J
0.01199
0.13514
0.00799
0.02203
8.68891
0.07776
0.29924
0.60162
12.42772
0.16125
0.06739
0.27758
0.98588
(46915
(46923
(46912
146919
(46756
I 1226
( 1229
( 1234
( 1237
( 1243
( 144L
I 1251
( 1254
( 1257
1 1264
( 1273
( 127B
1 1290
( 1297
( 13C4
( 1307
I 1316
( 1337
1 1340
( 1343
( 1346
I 1368
( 1371
< 1376
1 1431
( 1434
( 1448
1 1511
( 1534
< 1537
( 154C
( 1543
1 1385
( 1390
I 1393
1 1396
( 1555
( 1559
( 1564
( 1567
( 1571
( 1574
( 1547
( 1520
( 1523
1 1527
( 1530
( 1548
( 1552
( 142B
( 1427
I 1350
( 1401
( 1352
( 1429
( 1407
I 1419
I 1422
CH
CH
CH
CH
EV
C 7
D 5
B 3
C1 2
E 6
e 6
C 7
0 2
E 3
C' 1
C' 2
0 6
C' 1
C 6
F 1
8 6
C 6
C 3
C 7
A_6
C 7
A 3
C 3
E 5
A 3
C 5
A 6
E 2
A 6
E 3
C 5
E 5
65 9
GS14
GS17
GS20
GS 2
GS 7
GS12
GS15
GS19
GS22
MS
HO
RA
TR
FR
CA
SC 1
MU 2
LU 2
BH 2
NO 2
KW 2
ML 2
SM 2
BU 2
GA 2
20FE1946
22NQ1946
AP1947
5JN1947
27AP1938
16MY1964
14HY1964
18JN1964
8JN1964
13JN1964
24JH964
16JL1964
15JL1964
14JU964
10AU1964
10SE1964
18SE1964
16CC1964
140C1964
110C1964
N01964
9N01964
2HR1967
28HR1967
19AP1967
21AP1967
4HY1967
4KY1967
6MY1967
12JN1967
17JN1S67
10JL1967
1SE1967
19SE1967
24SE1567
40C1967
100C1967
10MY1967
1ZMY1967
13MY1967
13CY1967
30C1967
40CIS67
50C1967
50C1967
60C1967
60C1967
20C1967
18SE1967
19SE1967
20SE1967
24SE1967
30C1967
60C1967
29HY1967
29HY1967
19AP1967
6CY1967
21AP1967
29KY1967
14MY1967
23MY1967
23MY1967
0.01707
0.00656
0.01150
C. 00152
0.23507
C. 04947
0.00846
0.00562
0.01805
C. 01253
C.OO&61
0.00290
0.00575
0.00239
0.00193
C. 01075
0.00769
C. 00379
C. 00952
0.00247
C. 00361
C. 00378
0.89067
1.27255
2.91790
C. 93467
0.05655
0.00231
C. 00281
C. 01287
C. 00897
C. 01061
0.00307
0.02172
0.01294
0.00496
0.01437
C. 01177
0.01174
C. 02465
0.17683
G.0035J
0.00350
0.00329
G. 00476
C. 00176
0.00575
0.00798
0.01886
0.26753
C. 06918
0.11001
0.02544
O.C19S1
1.10880
C. 13317
5.14526
1.31703
0.51538
2.88778
0.50158
0.18308
0.43938
(46914
(46905
(46916
(46922
46761
1227
1230
1235
1240
1244
1249
1252
1255
1258
1271
1274
1284
1293
1301
1305
1309
1320
1338
1341
1344
1347
1369
1372
1408
1432
1435
1451
1532
1535
1538
1541
1380
1386
1391
1394
1397
1S56
1560
1565
1568
1572
1575
152*
1521
1525
1528
1531
1549
1550
1426
1417
1425
1402
1353
1404
1349
1*20
1423
CH
CH
CH
CH
EV
C' 2
E 2
C 7
F 1
C 3
C' I
F 1
C 7
D 1
E 6
D 2
E 4
F 2
C1 1
E 4
C 3
A 3
C 3
E 2
A 4
C 5
A 3
A 4
C 7
C 7
A 3
C 7
E 5
E 2
C-S 4
GS10
C-515
csie
€521
ES 3
GS 8
CS13
GS16
GS20
GS28
CI 1
SH
FH
SB
CH
fO
HR
HS 2
1-0 2
PA 2
TR 2
FR 2
HO 2
Cl 2
IH 2
HA 2
19AP1946
JA1947
21AU1947
27NY1936
13HV1964
16MY1964
16JN1964
11JM964
8JL1964
16JL1964
15JL1964
6JL1964
22SE1964
17SE1964
17SE1964
150C1964
13CC1964
110C1964
10N01964
7N01964
28MR1967
19AP1967
25AP1967
23AP1967
4MY1967
5MY1967
23HY1967
13JN1961
13JN1967
16JL1967
16SE1967
20SE1967
23SE1967
110C1967
9HY1967
12KY1967
12MY1967
13HY1967
13MY1967
30C1967
40C1967
50C1967
5CC1967
6CC1967
60C1967
20SE1967
1CSE1967
20SE1967
20SE1967
25SE1967
40C1967
50C1967
29HY1967
22MY1967
25MY1967
6MY1967
23AP1947
10KY1S67
19AF1967
25HY1967
0.00123 )
C. 00645 )
C. 00048 )
C.CC818 )
C.CC219 )
C.C5649 )
C.CC460 I
O.CC219 Y
C.CC543 )
C.CQ55B I
0.02310 )
C.CC472 )
CiO_13Q6_l
C.CC469 1
C.CC318 >
C. 00472 )
C.CC442 )
C.OC173 )
C.CC161 )
C.OC207 )
C. 86476 )
C. 49358 )
C.OC993 1
0.08129 )
0.01118 )
C.CC355 )
C.OC447 )
C. 02044 )
C. 05683 )
C.21259 )
0. 00986 )
C.OC322 )
0.02210 I
C.C2661 )
C. 00336 )
C.OC862 )
C. 02873 )
C. 05505 )
1.55664 )
C. 01043 I
C. 00945 L
C. 01014 1
C. 00433 )
C.OG451 1
C. 00645 l_
C. 08757 I
C. 32887 1
C. 01393 I
0.17326 1
C. 03381 )
0.02741 )
C. 11151 )
5.J7533 >
5.02467 )
1.69746 )
1.05047 )
5.23207 1
C. 02541 )
5.8C501 I
3.35717 )
(
Stephanodisffus transilvan-icus Pant.
Stephanodi-scus tyansitvanicus Pantocsek, Beitr. Kenntn. Foss. Bacill.
Ungarns, p. 96, Beitgr. Ill, pi. 8, fig. 125. 1905.
Stephanodiscus astraea var. intermedia'"Fr±cke in: A. Schmidt's Atlas Diat.,
pi. 225, figs. 37-39. 1901.
177
-------
Stephanodisaus astvaea var. tvansilvaniaa Fricke -in: A. Schmidt's Atlas
Diat., pi. 226, figs. 2-22. 1901.
Stephctnodisous astraea var. multipunctata Fricke in: A. Schmidt's Atlas
Diat., pi. 226, figs. 23-24. 1901.
Cells circular in valve view and rectangular in girdle view. Vegetative
cells always occur singly. Valves of specimens from Lake Michigan 14-60p
in diameter, with markedly concave center. Radial striae in multiseriate
(usually 4-6) at the margins, fascicles becoming uniseriate and, eventually,
disorganized as they approach the sunken center portion of the valve. Puncta
in the radial striae usually fine but irregular in size and placement, 14-20
in lOy. The fascicles are separated by quite wide and markedly thickened
radial ribs. The spines are regularly placed in this species and one spine
usually occurs at the end of each rib. A narrow marginal zone of fine, ir-
regularly arranged, puncta is present in the larger individuals and the ribs
and spines extend into this zone. In smaller specimens this feature is not
apparent in valve view due to the accentuated contour of the valva. Fascicles
and spines 3-5 in lOy at the margins of the valves.
Although the only reports of this species from Lake Michigan are those
of Skvortzow (1937), it is the most abundant large member of the genus in the
offshore plankton at the present time and is abundant in collections dating
back to 1876.
645 STTRANS1 TCT NO OF STATIONS 290
160973 CH 1876 3.47189
1 3507 CH 19FE1881 0.27168
(46917 CH 12JA1946 0.09898
146924 CH 10MY1946 0.55026
(46905 CH JA1947 0.11398
146916 CH 4MY1947 0.03325
(46907 CH JL1947 0.44873
146758 EV 5JN1937 0.66329
(46745 EV 3JL1937 0.08359
(46747 EV 1AU1937 0.014B5
(46752 EV 15SE1937 0.02177
146767 EV 27DC1937 0.00774
(46762 EV 18MR1938 0.06617
146756 EV 27AP1938 0.14776
I 1223 B 3 18MY1964 0.02188
( 1226 C 7 16MY1964 0.05327
( 1229 0 5 14MY1S64 0.26855
( 1232 E 5 16MY1964 0.79133
1235 C 7 I6JN1964 0.01130
12^7 C« 2 8JN1964 0.03351
IJ41 F 6 13JN1964 0.22551
1246 f 3 11JN1964 0.20319
144(1 K 6 11JL1964 0.01106
1250 C 6 10JL1964 0.02878
1253 C« 2 16JL1964 0.04108
1256 E 2 14JL1964 0.1355*
1259 F 2 6JL1964 0.16423
1262 B 3 17AU1964 O.C2310
1263 C 7 15AU1964 0.00400
1266 0 3 18AU1964 0.05963
1J7H F 1 1CAU1964 0.01361
1273 C1 2 10SE1S64 0.02688
1?7ft D 3 1B5E1964 O.O2235
1281 E 3 16SE1964 0.16482
12BA E 6 17SE1964 0.00953
1287 F 3 15SE1964 0.01001
uvn ri i i*nrioA4 n nn*7
1294 D 3 150C1964 0.06593
1297 D 6 140C1S64 0.02666
1300 E 3 130C1964 0.11455
1303 F 6 13DC1964 O.C2799
1306 F 3 UQC1964 0.00554
H(19 r- 1 10ND1964 0.00322
1312 0 2 8N01964 0.00621
1315 0 5 9N01964 0.03185
1319 E 3 7N01964 0.18328
1322 E 6 7ND1964 0.03666
1325 F 3 6N01964 0.00756
1T« C 3 28MR1967 1.42011
1341 A 3 19AP1967 0.18225
1344 C 3 25AP1967 0.28952
1347 E 2 23AP1967 1.36574
1369 A 4 4MY1967 5.47915
1372 C 5 5MY1967 6.45482
1375 E 3 7MY1967 0.84218
3540 CH 11HY1879 0.47524
46910 CH OC1945 0.00109
(46915 CH 20FE1946 0.26177
46S23 CH 22N01946 0.01748
I469C9 Ch HR1947 0.59196
(46«6 CH MY1947 0.12942
46913 CH 6AU1947 0.01046
(46771 EV 11JN1937 0.37326
46764 EV 17JL1937 0.12893
46763 EV 23AU1937 C. 02029
46744 EV 60C1937 0.00975
46749 EV 12MR1S38 0.19420
(46751 EV 30MR1938 0.05583
(46759 EV 19HY1938 0.29710
1224 B 4 18MY1964 0.10195
1227 C- 2 13MY1964 C. 04935
1230 E 2 16MY1964 0.05038
1233 B 3 5JK2964 0.03096
1439 B 6 5JN1964 0.02198
1238 D 3 11JM964 C. 25400
1244 F 1 11JN1964 0.08114
1247 B 3 14JU564 0.00427
1441 B 6 24JL1964 0.03745
1251 C 7 16JL1964 0.01738
1254 D 2 15JL1964 0.18004
1257 E 3 14J11964 0.50245
1260 F 3 6JL1964 0.14134
1442 B 6 2AU1964 0.00682
1264 C' 1 10AU1964 0.00579
1268 E 2 15AU1964 C. 20243
1444 B 6 19SE1964 C. 04244
1274 0 1 17SE1964 0.01406
1273 D 6 18SE1964 0.01153
1282 E 4 16SE1964 0.02216
1285 F 1 15SE1964 0.05241
1445 B 6 140C1S64 0.00326
U9i r.i i iAnn<5/,4 n.nn7i«
1295 D 4 150C1964 0.08324
1298 E 1 120C1964 0.01885
1301 E 4 130C1964 0.18546
1304 F 1 11EC1964 0.00247
1307 B 6 N01964 0.00361
1310 C- 2 10N01964 C. 00454
1313 0 3 9N01964 C. 09653
1317 E 1 6N01964 0.00574
1320 E 4 7NQ1964 0.05584
1323 F 1 6NQ1964 0.00279
1336 C 3 27JA1967 0.01540
1339 C 5 28MR1967 2.07333
1342 A 4 19AP1967 0.50530
.1345 C 5 25AP1967 1.77378
1348 E 5 23AP1967 0.24400
1370 A 6 3MY1967 C. 21637
1373 C 7 5MY1967 2.59570
1376 E 5 6HY1967 C. 78705
)
)
3541 CH 1FE1881 1.59444 )
46921 CH 23N01945 C. 00841 )
46914 CH 19AP1946 1.C7524 )
46920 CH 20DE1946 O.C1695 )
46912 CH AP1947 C. 13798
46919 CH 5JN1947 0.08194
46922 CH 21AU1947 0.05767
46743 EV 20JN1937 C. 21838
46757 EV 25JL1937 C.1C110
46769 EV 7SE1937 C. 04342
46748 EV 130C1937 C. 38429
46768 EV 16MB1938 C. 10290
46772 EV 1BAP1.938 C.12775
46761 EV 27HY1S38 C. 11719
1225 C 6 15MY1964 C. 05880
1228 0 2 14MY1964 C. 23161
1231 E 3 16HY1564 C. 85608
1234 B 3 18JMS64 0.00281
1236 C1 1 8JM964 0.01750
1239 0 4 11JN1964 C. 02785
1242 E 3 13JM964 C. 41963
1245 F 2 11JN1964 C. 22128
1248 B 3 24JL1964 0.00985
1249 C 3 8JL1964 O.OC272
1252 C1 1 16JL1964 C.OC837
1255 0 5 15JL1964 0.18993
1258 F 1 6JL1964 C.3C441
1261 B 3 2AU1964 0.00196
1443 8 6 16AU1964 O.CC198
1265 C1 2 10AU1964 0.00671
12*9 E 3 15AU1964 C. 76742
1271 C 7 22SE1964 0.01959
1275 D 2 17SE1964 C.C1290
1280 E 2 16SE1964 0.03404
1283 E 5 165E1964 0.12872
1286 F 2 15SE1964 C. 01095
1289 C 7 140C1S64 C. 15391
i'« n 5 i<;nei964 0.00943
1296 0 5 140C1964 C. 02754
1299 E 2 120C1964 0.012S7
1302 E 5 130C1964 0.04454
1305 F 2 110C1964 C.OC518
1308 C 7 6NC1964 0.01521
1311 D 1 8N01964 C.C0258
1314 0 4 9NQ1964 0.04019
1318 E 2 7NC1964 C.C8181
1321 E 5 7N01964 C. 02873
1324 F 2 6N01964 C.C1398
1337 C 3 2NR1967 0.06671
1340 C 7 28MR1967 C. 16580
1343 A 6 19AP1967 C. 21120
1346 C 7 21AP1967 €.23367
13*8 A 3 4NY1967 1.97926
1371 C 3 4HY1S67 1.93915
1374 E 2 7HY1967 2.30126
1408 * 3 23KY1967 1.56508
178
-------
1409 A * 23MY1967 0.41659
1*12 C 5 31MY1967 2.35710
1415 E 3 28MY1967 0.94437
1432 H 4 13JN1967 4.117AO
1435 C 7 13JN1967 0.59988
143B E 5 14JN1967 1.52505
1451 C 7 16JL1S67 0.01181
1454 E 5 15JL1967 0.01600
1509 C 5 2SE1967 0.47441
1512 E 3 ISE1967 1.46851
1536 E 2 24SE1967 0.03817
1543 E 5 10QC1967 0.01437
1379 GS 3 9MY1967 0.36828
1382 GS 6 10MY1967 fl.fc4«4fl
1385 GS 9 10MY1967 0.06357
13SB GS1? 12MY1967 0.04223
1391 GS15 12MY1967 0.16760
1394 GS18 13MYI967 0.60206
1397 GS21 13HY1967 0.00523
1555 GS 2 3nC1967 0.00706
1559 GS 7 40C1967 0.01399
15(,A G514 50C1967 0.00183
1569 GS17 50C1967 0.58865
1572 GS20 6CC1967 0.00180
1575 GS28 60C1967 0.01677
i5?o mi i IHSE1967 n-o?357
1527 TR 1 20SE1967 0.00629
1545 WL 1 2CC1967 0.08784
1552 SM 1 60C1967 0.00660
147H Mil ? 70MY1967 0.04821
1427 LU 2 29HY1967 3.48668
1350 RH 2 19AP1967 O.nl54J
1401 MO 2 6KY1967 0.28222
115? KU -> 21AP1967 0.08590
1429 WL 2 29MY1967 0.98737
]4ns FS 7 12KY1967 0.14190
1406 GB 2 13MY1967 0.00270
1 1421 f.H ? 23MY1967 0.26024
( 1424 KN 2 25MY1967 0.26645
1 l*l° A 6 24CY1967 1.18403
1 !413 C 7 25HY1967 2.43232
' 1416 E 5 28MY1967 C. 20556
1 L143J_ C 3 17JN1967 1.13034
* l«6 E 2 15JN1967 6.33232
' 1446 A 3 11JL1967 C.0146B
( 1449 C 3 16JL1967 1.73870
L1452 E 2 14JL1967 0.27036
I 1504 A 3 28AU1967 0.00988
1 ' 1510 C 7 29AU1967 0.00316
( 1513 E 5 31AU1967 0.06588
( < 1537 E 3 24SE1967 4.22669
1 1541 E 2 110C1967 C. 02129
( 1377 GS 1 9HY1967 1.01326
C 1360 GS 4 9MY1967 0.28754
1 LI 383 GS 7 10HY1967 0.15237
( 1386 GS10 12HY1967 0.43953
1 ( 1389 GS13 12MY1967 0.01289
< 1392 GS16 12MY1967 0.05548
( 1395 GM9 13MY1967 0.09864
( 1398 GS22 14MY1967 0.19431
! 1 1557 GS 4 30C1967 0.01121
1 1562 GS10 50C1967 0.00493
! ( 1567 GS15 50C1967 0.07780
( 1570 GS18 50C1967 0.33717
C 1573 GS21 60C1967 0.03920
( 1544 HU 1 20C1S67 0.00477
i_J3_2_l SH 1 18SE1967 0.01731
( 1528 SB 1 20SE1967 0.05775
I 1548 CA I 30C1967 0.01272
( 1550 MR 1 50C1967 0.06195
( 1426 MS 2 29HY1967 0.88189
e 1417 HO 2 22HY1967 0.22432
< 1425 RA 2 25HY1967 0.22102
1 1402 TR 2 6MY1967 0.34113
( 1353 FR 2 23AP1967 C. 21097
1 1403 CA 2 10MY1967 1.42540
I 1407 SM 2 14HY1967 0.04777
( 1419 BU 2 23HY1967 0.16477
( 1422 GA 2 23MY1967 0.19414
( 1430 MC 2 12JN1967 0.02467
1411 C 3 31KY1967 C. 96008
1431 A 3 12JN1967 C. 36048
1437 E 3 15JN1967 4.33343
1450 C 5 16JL1967 1.73284
1508 C 3 2SE1967 O.C1998
1533 A 4 19SE1967 C.OC464
1538 E 5 23SE1967 C 45849
1542 E 3 110C1967 1.77990
1381 GS 5 10HY1967 0.25998
1384 GS 8 10MY1967 C 47324
1387 GSll 12MYJ967 C. 15447
1393 GS17 13MY1967 C. 04931
1554 6S 1 30C1967 C. 01423
1563 GSll 50C1967 0.00701
1568 GS16 50C1967 C.C1154
1571 SS19 60C1967 C. 00351
1574 GS22 60C1967 C 01438
1546 iU 1 20C1967 C. 07503
1526 CO 1 20SE1967 C 04551
1529 KM 1 20SE1967 C. 02398
1551 ES 1 50C1967 C.CC799
1553 SG 1 60C1967 0.03672
1351 HI 2 21AP1967 C 2C171
1418 SH 2 22MY1967 C. 04666
1399 PM 2 5MY1967 0.42845
1400 SB 2 6MY1967 0.75054
1354 GH 2 25AP1967 0.04143 >
1404 KC 2 10MY1967 0.0762Z
1349 Ci 2 19AP1967 C. 04670
1420 IH 2 23MY1967 C. 09063
1423 bA 2 25HY1967 0.35970
Species i-
sedis
Stephanodisaus sp. #5.
646 STSPECOE TOT NO OF STATIONS" 135
146917
146974
146916
(46922
(46761
( 1225
I 1228
( 1231
( 1234
( 1236
1 1239
I 1242
( 1245
( 1440.
( 1250
I 1253
( 1256
I 1259
( 1262
( 1264
( 1268
( 1444
( 1277
( 1281
I 1294
I 1299
I 1302
( 131fl
( 1336
( 1339
< 1342
( 1346
( 1369
( 1408
( 1433
I 1450
( 1513
( 1379
( 1392
( 1352
CH
CH
CH
CH
EV
C 6
D 2
6 2
B 3
C1 1
D 4
E 3
f 2
B 6
C 6
C' 2
E 2
- F 2
B 3
C' 1
E 2
B 6
0 4
D 3
E 2
E 5
F. 7
C 3
C 5
A 4
C 7
A 4
A 3
C 3
C 5
E 5
GS 3
GS16
KM 2
12JA1^46
10HY1946
4HY1947
21AU1947
27MY1938
15MY1964
14MY1964
16MY1964
IBJNI'964
EJIJ1964
11JN1964
13JN1964
11JN1964
lLJl.19.t4
10JL1964
16JL1964
14JL1964
6JL1964
17AU1964
10AU1964
15AU1964
19SE1964
1BSE1964
16SE1964
150C1964
120C 1964
130C1964
7ND1964
27JA1967
28MR1967
19AP1967
21AP1967
4HY1967
23MY1967
17JN1967
16JL1967
31AU1967
9MYIS67
12MY1«67
12MY1967
16SE1967
21AP1967
— ETV&Ci,028 1 (46515
0.00071 ) (46S23
C. 00102
0.00048
0.00545
0.00392
0.00973
C. 01712
0.00843
O.OC350
0.00116
0.00300
0.02420
0.2SS49
0.69065
0.02054
0.51293
0.09606
0.00630
0.00772
0.7C030
0.00303
0.01239
0.00785
0.00330
0.00628
0.00405
O.OC951
0.00193
0.00935
O.OC361
0.05608
0.00373
J). 00894
0.07105
0,00489
0.02666
n_OO400
0.00507
0.01105
0.00309
O.OC287_ J
0.00308
1.16701
0.09449
(46906
(46758
( 1223
I 1226
I 1229
( 1232
( 1235
( 1237
( 1240
( 1243
( 1246
t 1441
I 1251
( 1254
( 1257
( 126C
( 1442
1 1265
( 1269
[ 1273
( 1279
( 1283
( 1295
( 1300
( 1305
( 1319
( 1337
( 1340
( 1343
( 1347
( 1373
( 1412
( 1434
( 1447
( 1452
( 1511
I 1536
( 1542
( 1383
{ 1387
( 1398
( 1549
( 1429
CH
CH
Ch
ev
B 3
C 7
D 5
E 5
C 7
C1 2
D 6
E 6
F 3
B 6
C 7
0 2
E 3
f 3
e 6
C' 2
E 3
C1 2
E 1
E 5
0 4
E 3
F 2
E 3
C 3
C 7
A 6
E 2
C 7
C 5
C 5
A 4
E 2
E 2
E 2
E 3
GS 7
GSll
GS22
MQ 1
ML 2
20FE1946
22N01946
WY1947
5JN1937
18IHY1964
16MY1964
14MY1964
16MY1964
16JN1964
6JN1964
10JN1964
13JN1964
11JN1964
24JL1964
16JL1S64
15JL1964
14JL1964
6JL1964
2AU1964
10AU1964
15AU1964
10SE1964
16SE1964
16SE1964
150C1964
130C1964
110C1964
7N01964
2WR1967
28MR1967
19AP1S67
23AP1967
5KY1967
31MY1967
17JN1567
11JL1967
14JL1967
__nm6j_
24SE1S67
110C196J
10HY1967
12HY1967
14MY1967
4CC1967
29HY1967
0.03414 ) (46914
0.00437 1 (46909
C. 02057
0.00357
0.00156
0.00381
0.03595
0.02261
0.00847
C. 15210
0.01994
0.02297
0.05379
C. 20705
0.00579
C. 29496
0.17705
0.03438
0.09894
0.00894
0.34534
0.00538
0.01178
0.00613
0.01784
0.01432
C. 00345
0.01047
C. 00441
0.00509
0.00278
0.00488
0.00285
0.00842
0.00299
0.00468
0.03193
0.01842
0.00273
C. 04 068
0.00267
0.00396
0.00304
0.01370
(46919
(46756
( 1224
1227
1230
1233
1439
1238
1241
1244
1248
1249
1252
1255
1258
1261
1443
1266
1270
1275
1280
1285
1297
1301
1307
1320
1338
1341
1345
1348
1374
1432
1438
1449
1453
1512
1537
1378
1384
1389
1524
( 1400
C. 01062 ) ( 1423
CH
CH
CH
EV
B 4
C1 2
E 2
B--3
B 6
0 3
E 2
F 1
B 3
C 3
C' 1
0 5
F 1
B 3.._
B 6
B 3
F 1
0 2
E 2
F 1
0 6
E 4
B 6
E 4
C 3
A 3
C 5
E 5
E 2
A 4
E 5
C 3
E 3
£ 3
E 3
GS 2
GS 8
GS13
Ml 1
SB 2
MA -2
19AP1946
MR1947
5JN1947
27AP1S38
18HY1964
13WY1964
16MY1964
5JM2964
5JN1964
11JN1964
13JN1964
11JN1964
24JL1964
8JL1964
16JL1964
15JL1964
6JL1964
2AU1964
16AU1964
ieAUl<364
10AU1964
17SE1964
16SE1964
15SE1964
14CC1964
130C1964
N01964
7N01964
28HP.1967
19AP1967
25AP1967
23AP1967
7HY1967
13JN1967
14JN1967
16JL1967
15JL1967
1SE1967
24SE1967
9MY1967
10HY1967
12MY1967
20SE1967
6KY1967
O.CC961
0.18669
C.CC455
C.OC672
C.CC588
C.CC439
C.C4149
C.C4287
C. 34965
C.C6400
C. 10941
O.CC439
0.00591
C. 00272
C.OC837
1.25764
0. 05899
C.CC392
O.OC395
0.45Z50
C.OC817
O.OC645
C.OC681
0.01747
C.CC190
C. 01325
O.OC361
C.OC827
C. 01851
C. 00976
0.00780
C.OC548
C.OC897
C.OC511
0.00363
C. 34774
C. 04297
0.01178
0.01294
C. 00421
C. 00370
C.OC258
C. 02189
C.CC596
C. 02141
179
-------
Stephanod-iseus sp. #10.
649 STSPECCJ TCI NC OF STATIONS 22
(469 14
(46909
I4675B
IA6750
( 1257
( 1260
I 1347
( 1541
CH
CH
EV
EV
E 3
f 3
E 2
E 2
19AP1946
MR1947
5JN1937
24SE1937
14JL1964
6JL1964
23AP1S67
110C1967
0.01708 I
0.00911 )
O.OC713 )
0.00471 )
0.00957 )
0.00191 )
0.00325 )
0.02661 )
146924
(46906
(46743
( 1255
( 1258
1 1284
( 1436
1
CH
CH
EV
0 5
F 1
t 6
E 2
10HY1944
MY1947
20JN1937
15JL1964
6JL1964
17SE1964
15JM967
0.00494 )
0.01327 )
C. 01285 1
O.OOS13 )
0.00472 )
0.00318 I
0.00362 )
(46923
146919
(46757
< 1256
( 1259
< 1337
1 1453
CH
CH
EV
E 2
F 2
C 3
E 3
22N01946
5JN1947
25JL1937
14JL1964
6JL1964
2HR1967
15JL1967
O.CC656
C. 01214
C. 00963
0.00733
C.CC310
O.OC294
C. 01264
6SC STSPECCK TCI NO OF STATICNS
JL1947 C.OC197 I I 125C
10JL1964 0.00411 I <
Genus Swrivella Turp.
Turpin, Mem. Mus. Hist. Nat. (Paris), 16:361.
1828.
Although the majority of freshwater members of the genus Sw?i,Te11a find
their primary habitat in benthic communities, many are successful facultative
planktonts. Plankton collections from Lake Michigan, especially those from
nearshore areas, often contain representatives of the genus, usually in low
numbers.
Swrirella atngusta Kutz.
Surivella angusta Kutzing, Bacill.
651 SUANGUST TCT NO OF STATIONS 162
, p. 61, pi. 30, fig. 52. 1844.
(60973 CH 1876 0.11809 )
146921 CH 23N01545 C.OC776 >
(46914 CH 19AP1946 0.04698 I
(46920 CH 20CE1946 0.01109
(46916 CH 4MY1947 0.01493
(46907 CH JL1947 0.01085
(46771 £V 11JN1937 0.01426
(4677C EV 9JL1937 0.01789
(46747 EV 1AU1937 0.15348
[46750 EV 24SE1937 C. 01885
(46749 EV 12MR1938 0.01214
(46756 EV 27AP1938 0.00672
( 1223 B 3 18MY1964 0.01094
( 1226 C 7 16MY1964 0.01142
1 1229 D 5 14NY1964 0.01692
1232 E 5 16MY1964 0.06609
1439 B 6 5JN1964 O.CC999
1238 0 3 UJN1964 O.C1600
1241 F 2 13JN1964 0.01183
1244 F 1 11JN1964 0.04934
1254 D 2 15JL1964 0.00958
1258 F 1 6JL1964 0.00472
IJA9 F 3 15AI11964 0.00548
1280 E 2 16SE1964 0.00681
129B E 1 120C1564 0.00269
1302 E 5 130C1964 0.00405
1305 F 2 110C1964 O.CC518
1317 E 1 6N01964 0.00191
1137 C 3 2HR1967 0.00294
1340 C 7 2BHR1967 0.00436
H43 A b 19AP1967 0.01251
1346 C 7 21AP1967 0.01202
136fl A 3 4KY1967 0.01571
1371 C 3 4HY1967 0.00923
1 37*> F 3 7MV1967 n_H4331
1412 C 5 31MY1967 0.01263
1436 E 2 15JN1967 0.00362
1379 GS 3 9HY1967 0.00619
1382 GS 6 10KY1967 0.00555
1385 GS 9 10HY1967 0.00471
1388 GS12 12MY1967 0.01207
1393 GS17 13MY1967 0.00274
1398 GS22 14HY1967 0.00304
1574 GS22 60C1967 0.00288
1526 M(l 1 20SE1967 0.02845
1529 KW 1 20SE1967 0.01199
14J8 HU 2 29MY1967 0.01205
1427 LU 2 29HY1967 0.01211
1425 RA 2 25MY1967 0.02652
1402 TR 2 6HY1967 0.18952
1353 FR 2 23AP1967 0.02110
1407 SH 2 14MY1967 0.01791
1419 BU 2 23HY1S67 0.05492
1422 GA 2 23HY1967 0.16349
1 3540 CH 11MYIB79 0.02796
(46917 CH 12JA1946 0.00749
146924 CH 10MY1946 0.02540
146905 CH JA1947 0.01716
(46<;C6 CH HY1947 0.02920
146S22 CH 21AL1947 0.02666
(46743 EV 20JN1937 0.12846
(46764 EV 17JL1937 0.32232
(46763 EV 23AU1937 0.04058
(46744 EV 60C1937 C. 01463
(46762 EV 1BMR1938 0.02206
.
(46761 EV 27HY1938 0.01908
1224 B 4 18MY1964 C. 00980
I 1227 C' 2 13MY1964 C. 00658
( 1230 E 2 16MY1964 O.OOB89
1 1233 B 3 5JN2964 0.01191
1 1236 C' 1 BJN1964 0.00175
( 1239 D 4 11JN1964 0.00116
( 1242 E 3 13JN1964 0.01049
1245 F 2 11JM964 0.02766
1256 E 2 14JL1964 0.00916
1260 F 3 6JL1964 0.00573
1444 B 6 19SE1964 0.00303
1285 F 1 15SE1964 0.01165
1299 E 2 120C1964 C. 00314
1303 E 6 130C1964 0.00560
1308 C 7 6N01964 0.00304
1322 E 6 7N01964 0.00333
1338 C 3 28MR1967 C. 00926
1341 A 3 19AP1967 0.01627
1344 C 3 25AP1967 0.00496
1347 E 2 23AP1967 0.00488
1369 A 4 4HY1967 0.01118
1372 C 5 5MY1967 C. 03901
1376 F 5 6MY1967 0.01687
1415 E 3 26HY1967 0.00225
1532 A 3 1BSE1967 0.00329
1380 GS 4 9MV1967 0.00336
1383 GS 7 10MY1967 0.00802
1386 GS10 12HY1967 0.00575
1390 GS14 12MY1967 C. 02936
1394 GS18 13MY1967 0.00516
1558 GS 5 4GC1967 0.00396
1546 LU 1 20C1967 0.00500
L1527 TR 1 20SE1967 0.05660
1545 HL 1 20C1967 0.04730
1426 MS 2 29MY1967 0.01050
1417 HO 2 22HY1967 0.04486
1399 PW 2 5KY1967 0.02720
1400 SB 2 6PY1967 0.17870
1354 GH 2 25AP1967 0.03107
1349 CI 2 19AP1967 0.04670
1420 1H 2 23HY1967 C.01511
1 1423 HA 2 2 5 KYI 96 7 0.08992
1 3507 CH 19FE1881 C. 04528
146915 CH 20FE1946 C.C1138
(46923 CH 22ND1946 0.01311
(469C9 CH MR1947 C. 06375
(46919 CH 5JN1947 C. 03945
(46758 EV 5JM937 C. 19970
(46745 EV 3JL1937 C. 02090
(46757 EV 25JL1937 C. 03370
146765 EV 30AU1937 0.00558
(46748 EV 130C1937 C. 02135
146772 EV 1BAP1938 C.CC710
146766 EV 14DE193C C. 01584
1225 C 6 15MY1964 C.OC392
1228 0 2 14MY1564 C.CC779
1231 E 3 16MY1964 C.C7582
1234 B 3 18JN1964 C.CC281
1237 C- 2 8JM964 O.OC516
1240 0 6 10JN1964 0.02301
1243 E 6 13JK1964 C.C1253
1246 F 3 11JN1964 0.07769
1257 E 3 14JL1964 C.C1196
1267 D 6 18AU1964 0.00216
1271 C 7 22.SE1964 0.00651
1297 D 6 14111.1964 C.CC190
1300 E 3 13CC1964 0.01432
1304 F 1 110C1964 C. 00988
1311 D 1 8N01964 O.CC256
1336 C 3 27JA1967 C.OC193
1339 C 5 28MR1967 C. 04677
1342 A 4 19AP1967 C.OC180
1345 C 5 25AP1967 0.01754
1348 E 5 23AP1967 C.C1234
1370 A 6 3HY1967 C. 04143
1374 E 2 7XY1967 C. 01494
1435 C 7 13JN1967 0.00316
1537 E 3 24SE1967 C.OC431
1381 GS 5 10MY1967 C.OC477
1384 ES 8 10HY1967 C. 00739
1387 CS11 12MY1967 0.01168
1391 ES15 12MY1967 C.OC479
1397 GS21 13MY1967 C. 00065
1567 £S15 SOC1967 C.CC159
1523 PA 1 19SE1967 C.OC923
1528 SB I 20SE1967 O.C1444
1550 CR 1 50C1967 0.02478
1351 H 2 21AP1967 C. 03103
1350 BH 2 19AP1967 0.00441
1401 fO 2 6MY1961 C. 11759
1352 KH 2 21AP1967 0.02577
1403 CA 2 10MY1967 C.C5231
1406 GB 2 13MY1967 0.01348
I 1421 CH 2 23HY1967 C.C6940
( 1424 KN 2 25MY1967 C.C2665
_
_
180
-------
Surirella biseriata Br£b. and Godey
Surirella biseriata de Brgbisson and Godey, Mem. Soc. Acad. Falaise, 1:53,
P-1-* ' . Xooj.
Coll: 1552a.
Surirella biseriata var. bifrons (Ehr.) Hust.
Navioula bifrons Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1832:259. 1832.
Sunvella bifrons (Ehr.) Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:388,
pi. 3(5), fig. 5. 1843.
Surifella biseriata var. bifrons Hustedt ini Pascher, Sussw.-Fl. Mittel-
europas, Heft 10, Aufl. 2, p. 433, fig. 833. 1930.
652 SUBISEVB TCT NO OF STATIONS 3
(6C973 CH 187f> 0.02362 ) I 35M Ch 1FE1B81 0.02535 ) ( 1565 C-S13 50CH67 C, 00507 )
Surirella elegans
Surivella elegans Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:424. 1843.
Coll: 1407a.
Surirella guatemalens'is Ehr.
Suri-pella guatemalensis Ehrenberg, Mikrogeologie, pi. 33(6), fig. 7. 1854.
Coll: 1552a.
Surirella linearis Wm. Smith
Surii>e11a l-ineocrls Wm. Smith, Syn. British Diat., Vol. 1, p. 31, pi. 8,
fig. 58z. 1853.
_ftfi.C SLSPECCA TCT NC Cf STiTICKS 1 __
1 14C7 SM ? __ HMY1S67 C.CC597 I I
Surirella linearis var. constri-cta (Ehr.) Grun.
Navicula ? constriata Ehrenberg, Infusionsthierchen, p. 188, pi. 21, fig.
17. 1838.
Supirella aonstriota (Ehr.) Ehrenberg, Mikrogeologie, pi. 14, fig. 37. 1854.
Surirella linecan-s var. oonstriota (Ehr.) Grunow, Verb. Zool.-Bot. Ges.
Wien, 12:455. 1862.
653 SULINEVC TOT NC CF STAT1CNS 1
~ O.OC393
Surirella lineavis var. helve-tlea (Brun) Meist.
Snrifella helvetica Brun, Diat. Alpes et Jura, p. 100, pi. 2, fig. 4. 1880.
Surirella Unecwis var. helvetica (Brun) Meister, Beitr. Kryptog.-Fl.
Schweiz, 4(1):223, pi. 41, fig. 6. 1913.
iilUNEVH TCT NC OF STtTICNS 7
____
I J407 SH 2 14HY1S67 0.00597 I I
181
-------
Surirella ovata Kutz.
Surirella ovata Kiitzing, Bacill., p,
62, pi. 7, figs. 1-4. 1844.
655 SUdVAlA TOT NO OF STATICNS 64
146921 CH 23NC1945 0.00388
(4AQ14 TH 19AP1946 0.0469B
146920 CH 20CE1946 0.00154
l&f.Q17 r.H 4D1047 0,0?10"
146907 CH JH947 O.C069C
I467&4 fv 17.111037 n,fijt)7
t 1228 D 2 14MY1964 0.00195
I 1238 D 3 11JN1964 0.00200
1 1244 F 1 11JN1964 0.00219
1 IJ55 Ci 1 1&JL1964 O.OC279
( 1258 F 1 6JL1964 0.00236
( 1277 C" 1 10RC19&4 0.00410
1 1341 A 3 19AP1967 0.00108
< 1371 C 3 4MY1967 0.00462
( 1416 E 5 28MY1967 0.00219
138? T,S k inHY1967 0.00278
1522 SH 1 16SE1967 0.00182
1427 LU 2 29PY1967 0.01211
1425 RA 2 25MY1967 0.01768
1400 SB 2 6MY1967 0.01787
1404 MO 2 10MY1967 0.01270
1424 KM 2 25MY1967 0.02665
(46517 CH 12JA1946 0.00194
L4/>924_ CH 10NY1946 0.00282
46SC5 CH JA1947 0.00613
46SC6 CH HY1947 0.00398
46522 Ch 21AU1947 0.00145
46744 EV 60C1937 0.00488
1231 E 3 16MY1964 0.00245
1240 D 6 10JN1964 0.00307
1245 F 2 11JN1964 0.00346
1256 E 2 14JL1964 0.00183
1259 F 2 6J4.1964 C.00310
1285 F 1 15SE1964 0.00582
1343 A 6 19AP1967 0.00069
1375 E 3 7HY1967 0.00241
1436 E 2 15JN1967 0.00724
1384 BS « 10MY1967 0.00370
1529 KM 1 20SE1967 0.01199
1417 HO 2 22HY196? 0.00374
1401 Ha 2 6HY1967 0.01764
1354 6H 2 25AP1967 0.00690
1422 GA 2 23MY1967 0.00511 1
146915 CH 20FE1946 0. 00569
(4A«?3 CH 22N01944 O.OD4|7_J
1469C9 CH MR1S47 C. 07741
I46<»19 CH 5JN1947 C. 00455
(46758 EV 5JN1937 C.CC357
1 1226 C 7 16MY1964 0.00381 _!
1232 E 5 16MY1964 C. 01044
1242 E 3 13JN1964 C.CC150
1246 F 3 UJM964 0.00598
1257 t. 3 14JL1964 O.OC239
126B E 2 15AU1964 0.00547
1300 E 3 130C1964 O.OC358
1346 C 7 21AP1967 C.OC134
1413 C 7 25HY1967 O.OC316
1512 E 3 1SE1967 0.00393
1391 C-S15 12MY1967 0.00479 j_
1351 KI 2 21AP1967 C.OC310
1350 6H 2 19AF1967 C. 00881
1402 TH 2 6MY1967 C. 02707
1403 CA 2 10HY1967 0.03923 1
1423 kA 2 25MY1967 C.OC856 )
Surirella ovata var. pinnata (Wm. Smith) Hust.
Surirella pinnata Wm. Smith, Syn. British Diat., Vol. 1, p. 34, pi. 9,
fig. 72. 1853.
Surivella ovata var. pinnata (Wm. Smith) Hustedt in'. Pascher, Sussw.-Fl.
Mitteleuropas, Heft 10, Aufl. 2, p. 442, fig. 865. 1930.
656 SLDVATVP TCT liC CF STATICNS 21
1 3507
146907
(46747
( 1236
1 1556
( 1402
1 1405
CH
CH
EV
C1 1
GS 3
TR 2
ES 2
1SFE1881
JL1947
1AU1937
8JN1964
3CC1967
6HY1967
12NY1?67
0.01132
0.00049
O.OC248
0.00175
0.00521
0.01083
0.00645
(46C.C6
(46922
46755
1245
1417
1400
14C6
CH
CH
EV
F 2
HO 2
SB 2
GB 2
MY1947
21AU1947
19KY1933
11JN1964
22MY1S67
6HY1967
13WY1967
0.00265 )
0.00048 )
0.00338 )
0.00346 )
0.00374 I
0.00596 )
0.00809 )
(46919
(46758
< 1232
( 1452
( 1350
( 1354
( 1423
CH
EV
E 5
f. 2
Bh 2
CH 2
DA 2
JJN1547
5JN1937
16MY1564
14JL1967
19AP1967
25AP1967
25WY1967
C.CC455
C. 00713
C.CC174
C.OC213
C. 00220
0.00 3* 5
C.00856
Surirella robusta var. splendida (Ehr.) V. H.
Navisuta ? splendida Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1832:81.
1832.
Surirella splendida (Ehr.) Ehrenberg, Mikrogeologie, pi. 3(2), fig. 17.
1854.
Siwirella robusta var. splendida (Ehr.) Van Heurck, Syn. Diat. Belgique,
p. 187. 1885.
(jQBLVS TCT NC CF STAT1CNS
CH
O.CCS78 > ( 14C7 Sf 2
14hY1967 0.00597 I (
tenera var. nezvosa A. S.
Surirella tenera var. nervosa A. Schmidt, Atlas Diat., pi. 23, figs. 15-17.
1875.
Coll: #844.
Suriv&lla tenuissima Hust.
Suxirella tenuissima Hustedt in: A. Schmidt, Atlas Diat., pi. 299, fig. 15.
1913.
659 SUTEMUIO TCI KC CF STATIONS 1
I 1550 I"R 1 5DC1967 0.01239 I (
182
-------
Species -Lnoertae sedis
Surirella sp. #3.
66 L _ .-SUi»JEtnt_l£I_fcCL_CIL_ iltLLGHS LL
CH
(46750.
EV
24SE1937 0.00471 )
.10MY1967 O.C127C >
46747
_46744
1423
EV
EV
HA 2
1AU1937
60C1937
25MY1967
0.01485 )
O.C0488 )
0.00428 )
(46752
(
EV
15SE1937
C. 02177
>
J_
Genus Synedra Ehr.
Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1830:40. 1832.
Synedva aeus Kxitz.
Synedra acus Kutzing, Bacill., p. 68, pi. 15, fig. 7. 1844.
Cells in girdle view elongate, rectangular with parallel sides. Speci-
mens from Lake Michigan 90-200y long, 4-6u broad at the widest point. Valves
lanceolate, gradually tapering to rounded or subcapitate ends. Striae per-
pendicular to the mid-line of the valve throughout, very finely cross-lineate,
about 12-14 in 10y. Axial area narrow, linear, very slightly expanded in the
central portion of the valve. A distinct, quadrate, central area is always
present in this species. It lacks any regular ornamentation but occasionally
contains what appearsto be incompletely developed striae, especially near the
valve margins.
This species is occasional in our collections. Its primary habitat is
apparently in the periphyton, but, like many other members of the genus, it
is able to maintain its existence in the phytoplankton.
662 SYACUS TCI KO Cf STATIONS
146921 CH 23N01945 0.00065
(46977 CH 21AU1947 0.00097
(46743 EV 20JN1937 O.OC856
I467"i7 EV 2SJL1937 0.00963
(46744 EV 60C1937 O.OC488
146756 EV 27AP1S38 0.00168
( 1237 C* 2 8JN1964 0.01031
( 1244 F 1 11JN1964 0.00110
1285 F 1 15SE1964 0.00582
137(1 F. 4 7N01964 O.CC620
1395 GS19 13MY1967 0.00117
1522 BH 1 18SE1967 0.00182
1426 MU 2 29MY1967 0.00904
L1350 BH 2 19AP1967 0.00220
1354 GH 2 25AP1967 0.00863
1404 MO 2 10PY1967 0.06352
1406 68 2 13HY1967 0.01617
46S24 CH 10MY1946 C.C0071
4675B EV 5JN1937 0.66329
46770 EV 9JL1937 0.03578
(46747 EV 14111937 0.00248
46749 EV 12MR1938 0.01214
146761 EV 27HY1938 0.00273
1241 E 2 13JNI964 0.00148
1252 C1 1 16JL1964 0.00279
1297 0 6 14CC1964 0.00381
1387 GSll 12HY1967 0.00396
1396 GS20 13MY1967 0.00074
1550 HR 1 50C1967 0.04956
1426 HS 2 29MY1967 C. 23097
1401 HO 2 6MY1967 0.02352
1429 ML 2 29HY1967 C. 01062
1405 ES 2 12HY1967 0.01290
1422 GA 2 23HY1967 C. 01022
46916 CH 4MY1947 C. 00068
46771 EV 11JN1937 C. 01664
46764 EV 17 JL 193 7 C. 02417
46765 €V 30AU1M7 C. 01115
46762 EV 18MK1938 C. 02206
1234 B 3 18JN1964 0.00562
1243 E 6 13 JN 1964 C.OC41B
1270 F 1 10AU1964 . 0.00545
1304 F 1 UQC1964 O.CC494
1394 GS18 13MY1967 O.OC172
1575 GS2B 6QC1967 C. 00129
1553 SG 1 60C1967 C.C2203
1417 HO 2 22HY1967 0.01122
1400 SB 2 6HY1967 C. 14892
1403 CA 2 10MY1967 C. 05231
1407 SH 2 14MY1967 0.01791
Kutz.
Synedra
Synedra amphicephala Kutzing, Bacill., p. 64, pi. 3, fig. 12. 1844.
Cells in girdle view elongate, sub-rectangular, narrowed toward the ends
central area.
s
portion of the lake.
ss/srs
183
-------
664 SYAKPHVA TCT NO OF STATIONS
( 13*3
19AP1967 0.00069 )
•Synedra amphioephala var. austriea (Grun.) Hust.
Synedra austrica Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 39, figs,
16a-b. 1881.
Synedpa amphioephala var. austriea (Grun.) Hustedt in-. Rabenhorst,
Kryptog.-Fl. Deutschland, 7(2)2:206, figs. 696b-d. 1932.
Valves lanceolate with capitate ends. Striae 12-15 in lOp. Morphology
and ornamentation of the frustule otherwise essentially similar to the nomi-
nate variety.
More common than the nominate variety in our collections, this entity
apparently is better adapted to planktonic existence.
252 FP.GRACIO TCT NO OF STATIONS
146917
(46916
(46758
( 46764
(46752
(46744
< 1260
CH
CH
EV
FV
EV
EV
F 3
12JA1S46
4MY1947
5JM937
17JL1937
15SE1937
60C1937
6JL1964
0.00055 )
0.00238 )
0.12481 )
0.05641 I
0.04354 )
0.01951 )
0.00382 )
146924
(46919
(46743
(46763
(46760
( 1258
I 1549
CH
CH
EV
EV
EV
F 1
MO 1
10MY1946
5JN1947
20JN1937
23AU1937
22SE1937
6JL1964
4CC1967
0.00423
0.21699
C. 01713
C. 16234
0.00492
C. 01652
0.04111
(46923
(46922
(46770
(46765
(46750
( 1259
(
CH
CH
EV
EV
EV
F 2
22NC1946
21AU1947
9J11937
30AU1937
24SE1937
6J11964
O.C1748
C.OC921
C. 01193
C.C2231
C.C2828
C.OC930
Synedra eap-Ltata Ehr.
Synedra capitata Ehrenberg, Poggendr. Ann. Phys., Ser. 2, 38:221, pi. 3,
fig, 3(1). 1836.
Cells in girdle view linear with slightly expanded apices. Specimens
from Lake Michigan 150-420y long, 7-10y broad. Valves linear with much
expanded cuneately narrowed apices. Striae coarse, distinctly punctate-line-
ate, parallel throughout most of the length of the valve, becoming radiate in
the expanded apices, 7-10 in lOy. Axial area narrow but distinct, linear
throughout. Central area often entirely lacking, when present rather small,
quadrate, not reaching the margins of the valve. A. distinct "jelly pore" is
visible at the ends of the valve.
This very distinctive species is restricted to the periphyton and only
occasional accidental occurrences have been noted in our collections.
666 SYCAPITA TCT NO OF STATIONS
160973
I 1306
1876
13HY1967
0.02362 I
0.00074 1
( 3540
( 1350
CH
BH 2
I1WY1879
19AP1967
0.00466 I
o.ooeai i
(46916
_S
CH
Synedra ayctopum Brutschy
Synedra cyalopum Brutschy, Internat. Rev. Hydrobiol., 10:284, fig. 11. 1922.
Living cells attached at one end, usually to planktonic microcrustaceans.
Usually several cells are attached at a common point, forming a bushy colony.
Valves arcuate, narrowing to rostrate to sub-capitate ends. Specimens from
Lake Michigan 30-65y long, 3-4y broad. Striae finely structured, parallel
throughout the length of the valve, 14-18 in lOy. Axial area narrow, linear,
often slightly displaced toward the concave margin of the valve. Central area
may be either present or absent, when present it is quite small, elliptical in
shape and does not extend to the margins of the valve.
184
-------
hablt
668 -- SjfCYCLOP TGT NCI nF
1 I
50C1967 0.0014-1 1 <
Synedra delioatissima Wm. Smith
Synedra delioatissima Wm. Smith, Syn. British Diat., vol. 1, pl. 12
fig. 94. 1853. > F ,
Cells in girdle view linear, narrowing slightly toward the ends. Valves
elongate-lanceolate with rounded to subcapitate ends. Specimens from Lake
Michigan 100-335y long, 3-4u broad. Striae parallel throughout, 14-16 in lOu.
Axial area narrow, filiform, central area variable, usually elongate-ellipti-
cal, not reaching the valve margins, in some specimens much reduced, only
marked by a few irregular striae at the center of the valve.
70S SYSPECOH TCT
146916
146744
( 1270
1 1350
CH
EV
F 1
BH 2
NO CF STATICKS 11
4NY1S47
60C1937
104U1964
19AP1967
0.00034 )
0.00488 1
0.00817 1
0.00661 1
(46919
( 1244
I 1348
( 14C3
CH
F 1
E 5
CA 2
5JN1947
1 UN 1964
23AP1967
10MY1S67
2.36719 I
0.00219 )
0.00137 )
0.02615 1
146922
< 1246
1 1426
(
CH
F 3
fS 2
21AU1947
11JN1964
29MY1967
C.OC145 )
C. 01195 )
C. 01050 1
Synedra deli.oati.ssi.ma var. angustissima Grun.
Synedra delioatissima var. angustissima Grunow in: Van Heurck, Syn. Diat.
Belgique, pl. 39, fig. 10. 1881.
Synedra aous var. angustissima (Grun.) Van Heurck, Syn. Diat. Belgique,
p. 151. 1885.
Cells in girdle view linear, narrowed toward the ends. Valves elongate-
lanceolate with subcapitate ends. Specimens from Lake Michigan 200-380u
long, 4-5y broad. Striae parallel throughout, 12-14 in 10u. Axial area
narrow, filiform, central area elongate, rectangular, usually reaching the
margins of the valves. In some specimens the central area is irregularly
bordered and tends to become more or less elliptical.
Both of these entities are euplanktonic in Lake Michigan. As is true
of most members of the genus, certain morphologic characteristics, particu-
larly the form of the central area, tends to be variable. Isolated speci-
mens in the intermediate size range are difficult to distinguish, but large
populations appear to fall into two discrete series.
663SYACCSVA TOT NC CF ST4TICKS315
(60973
146908
(46920
(46919
(46745
(46765
(46748
(46756
( 1225
I 177R
CH
CH
cK
CH
CH
EV
EV
EV
EV
C 6
D 2..
1876
19FE1881
DE1945
19AP1946
20DE1946
API947
5JN1947
5JN1937
3JL1937
25JL1937
30AU1937
^>?<5E1937
130C1937
19MR1938
27AP1938
14DE1 938
15MY1964
14HM964
C. 51960
0.14716
0.09063
0.10037 _,
0.20027
1.03484
0.69043
0.39940
0.27168
0.24553
0.22309
0.27574
0.02135
0.72783
0.2C485
0.2C596
1.92081
1.36242
( 3540
(46910
(46U7
146924
I4«?C5
(46916
(46913
(46771
(46770
(46747
(46769
(46750
(46767
146751
(46759
( 1223
I 1226
( 1229
CH
CH
CH
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
EV
B 3
C 7
D 5
11MY187S
OC1945
12JA1946
10HY1946
JA1947
4MY1947
6AU1947
11JN1937
9JL1937
1AU1937
7SE1937
24SE1937
27QC1937
30MR1938
19HV1936
18HY1964
16HY1964
14HV1964
0.07921
1.13602
0.21625
0.89381
0.06128
1.32323
0.16735
0.57534
0.02982
&.55450
0.54277
0.19324
0.10444
0.10049
0.37B12
0.28440
2.92998
2.96039
( 3541
(46921
(46915
146923
(46909
(46906
(46922
•46743
(46764
(46763
(46752
<46744
(46768
•46772
(46761
( 1224
( 1227
< 1230
CH
CH
CH
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
EV
B 4
C1 2
E 2
1FE1881
23N01945
20FE1946
22N01946
XR1947
HY1947
21AU1947
20JN1937
17JL1937
23AU1937
15SE1937
40C1937
16MR1938
18AP1S38
27MY1938
18KY1964
16HY1964
0.39127
0.27356
C.3C729
0.780,26
C. 12750
2.37270
0.18901
C.06851
0.16116
C. 14205
C. 06530
C.4t620
C. 23519
C. 12065
0.56143
C. 45878
1.86694
185
-------
( 1231 E 3 16MY1964 2. 62694 ) ( 1232 E 5 16HY1964 1.70441 ) '
1 1?14 fl \ 1BJN1964 0.17431 ) 1 '•>« f 1 I6JNI964 0.16663 1
I 1236 C* 1 8JN1964 0.30631 I
1 1739 D 4 11JN1964 0.17871 )
1 1242 E 3 13JN1964 1.39975 I
( 1248 8 3 24JL1564 0.05517 1
I 1749 f 3 BJL1964 0.05975 )
< 1252 C1 1 16JL1964 0.04184 I
( 1258 F 1 6JL1964 0.90351 )
1 1?6> B 3 2AU1964 0.00785 )
( 1443 B 6 16AU1964 0.01186 )
1 1765 rf 2 10AU1964 0.07601 1
1 126B E 2 15AU1964 1.05318 1
1 1444 B 6 19SE1964 0.21219 )
1 1273 C1 2 10SE1964 O.C6990 )
1 1?76 D 3 IBSE1964 1.13992 »
< 1279 E 1 16SE1964 0.20811 I
( 1285 F 1 15SE1964 2.44598 I
t 17ftfl R 3 15OC1964 0.02177 1
( 1290 C1 1 160C1964 0.07580 )
1 1791 n 7 I5nr.i964 0.15715 I
( 1296 D 5 140C1964 0.05902 )
( 1299 E 2 120C1964 0.26076 )
( 1302 E 5 130C1964 1.41712 )
1 1305 f 7 11CC1964 0.789H3 )
( 1308 C 7 6N01964 0.02737 )
(Ull D 1 6N01964 0.23477 )
( 1314 D 4 9N01964 0.67178
1 1317 F 1 6N01964 C.134Q3
1 1320 E 4 7N01964 0.86867
1 1323 F 1 6MU56A. C_.j>494B
1 1336 C 3 27JA1S67 0.67395
1 1339 C 5 28PJU967 2.18245
( 1342 A 4 19API967 3.28443
1 1345 C 5 25AP1967 3.4578S
t 1348 E 5 23AP1967 2.36600
( 1370 A 6 3MY1967 0.00230
( 1373 C 7 5f>Y1967 0.49917
1 1176 E 5 6MY1967 2.36114
( 1410 A 6 24MY1967 3.15742
( 1413 C 7 25KY1967 1.99008
( 1416 E 5 26MY1967 2.96967
1 1433 C 3 17JN1967 8.13848
1 1436 E 2 15JN1967 6.41916
1 1446 A 3 11JL1967 1.94217
1 1449 C 3 16JL1967 12.12885
( 1452 E 2 14JL1S67 3.7765t
( 1504 A 3 28AU1967 0.69127
1 1509 C 5 2SE1967 2.35187
( 1512 E 3 1SE1967 7.69593
I l-i" A 4 19SE1967 0.01857
1 1536 E 2 24SEIS67 3.81742
I 1539 C 3 4DC1967 0.00503
( 1542 E 3 11DC1967 2.61391
1 1378 GS 2 9KY1967 0. 9587.5.
( 1381 GS 5 10MY1967 2.11325
1 13R4 GS 8 10MY1967 1.12025
« 1387 GS11 12MY1967 0.87136
{ 1390 RS14 12MY1967 0. 19965
( 1393 GS17 13MY1967 C. 70129
1 1396 GS20 13MY1967 0.06511
1 1554 GS 1 3DC1967 2.15612
1 1557 KS 4 3DC1967 0.57922
( 1560 GS 8 40C1967 0.45813
1 1563 GS11 5DC1967 0.55886
( 1566 GS14 5CC1967 0.1C457
< 1569 GS17 50C1967 C. 90081
< 1572 GS20 6CC1967 O.OC09C
1 1575 GS28 6QC1967 0.15353
1 1546 LU 1 20C1567 0.03001
i 1522 BW 1 18SE1967 1.94380
( 1528 SB 1 20SE1967 0.08663
( 1531 GH 1 25SE1967 1.06509
I 1551 ES 1 5CC1967 0.44732
1 I*-;* Sr. 1 6DC1967 0.13954
1 1351 PI 2 21AP1967 2,54771
1 141 B SH 2 22MY1967 0.88647
1 1399 PU 2 5PY1967 3.40724
( 1400 SB 7 6MY1967 3.36550
1 1354 GH 2 25AP1967 0.20195
1 lidi HO 1 inKY1967 1.0034B
1 1349 CI 2 19AP1967 0.88009
1 1420 IH 2 23MY1967 3.70091
( 1423 MA 2 25NY1967 0.36396
"
1237 C' 2 8JN1964 0.20624
1740 D b 10JN1964 0.71482
1243 E 6 13JN1964 2.63092
l?Aft F 3 11JN1964 C. 92034
1440 B 6 11JL1964 0.28375
1250 C t 10JL1964 0.25899
1253 C' 2 16JL1964 0.37657
1256 E 2 14JL1964 C. 85367
1259 F 2 6JL1964 1.08453
1262 B 3 17AU1964 0.01470
1263 C 7 15AU1964 0.00400
1266 0 3 18AU1964 0.44549
1269 E 3 15AU1964 C. 29600
1271 C 7 22SE1964 C. 01306
1274 D 1 17SE1964 0.06100
1277 0 4 18SE1964 0.09295
1280 E 2 16SE1964 0.37443
1283 E 5 16SE1964 0.77847
1286 F 2 15SE1964 1.02890
1445 8 6 140C1964 0.20548
1291 C" 2 160C1964 0.0146B
1794 n -• 15aci9«4 0.53071
1297 C 6 140C1964 0.23990
L13CC E 3 13CC1964 2.00465
1303 E 6 130C1964 0.78361
13C6 F 3 11CC1964 1.16414
1309 C' 1 10NQ1964 0.20421
1312 0 2 8N01964 0.13037
1315 D 5 9NQ1964 0.57780
1318 E 2 7NQ1964 C. 22639
1321 E 5 7N01964 1.65358
1324 f 2 6N01964 C. 97827
1337 C 3 2HR1967 2.81309
1340 C 7 28WR1967 1.59542
1343 A t 19AP1967 0.24316
1346 C 7 21AP1967 4.05111
1368 A 3 4NY1967 3.95853
1371 C 3 4MY1967 0.07849 )
1374 E 2 7KY1967 3.76569 1
14C8 A 3 23HY1967 2.92447
1411 C 3 31MY1967 2.44123
1414 E 2 28MY1967 3.44584
1431 A 3 12JN1967 3.36277
1434 C 5 17JN1967 2.93097
1437 E 3 15JM967 4.77485 (
1447 A 4 11JL1967 2.39989 I
1450 C 5 16JL1967 4.79863
1453 E 3 15JL1967 4.00880
1505 A 4 28AU1967 0.23189
1510 C 7 29AU1967 C. 44262
1513 E 5 31AU1967 3.31408
1534 A 6 19SE1967 C. 10858
1537 E 3 24SE1967 4.42508
1540 C 5 40C1967 C. 01489
1543 E 5 100C1967 0.63209
1379 GS 3 9KY1967 0.46732
1382 GS 6 10HY1967 0.11380
1385 GS 5 10MY1967 1.09722
1388 GS12 12HY1967 0.05430
1391 GS15 12KY1967 0.57463
1394 GS18 13MY1967 1.68576
1397 GS21 13NY1967 C. 13081
1555 GS 2 30C1967 0. 38489
1558 GS 5 4CC1967 0.27747
1561 GS 9 4GC1S67 1.09174
1564 GS12 50C1967 0.01152
1567 GS15 5CC1967 C. 18894
1S70 GS1B 5DC1967 C. 12892
1573 GS21 6CC1967 0.03920
1544 MU 1 20C1967 0.01191
1520 he 1 1BSEIS67 C. 03772
1526 HO 1 20SE1967 0.05120
1529 KW 1 2CSE1967 0,14390
1548 CA 1 30C1967 0.05088
1552 SM 1 60C1967 0.66689
1428 MU 2 29KY1967 0.35253
1427 LU 2 29KY1967 6.45278
1350 BH 2 19AP1967 1.55063
1401 HQ 2 6MY1967 2.06961
1352 KM 2 21AP1967 1.92407
1429 WL 2 29HY1967 1.58191
1405 FS 7 17MVK967 C. 65144
1406 GB 2 13MY1967 0.07818
1421 CH 2 23MY1967 4.25052
1424 KN 2 25HY1967 5.82201
)
1233 B 3 5JN2964 C. 22386
1439 B 6 5JN1964 UC34SA_L
1238 B 3 11JNI964 1.96UUU
1241 E 2 13JN1964 1.2419B —
1244 F 1 11JN1964 0.16(fc
1247 B 3 14JL196* C.C2561
1441 B 6 24JL1964 C. 46251
1251 C 7 16JL1964 0.22307
1254 D 2 15JL1964 C. 98449
1257 E 3 14JL1964 1.11497
1260 F 3 6JL1964 1.51078
1442 B 6 2AU1964 C. 28659
1264 C1 1 1CAU1964 C. 02124
1267 D 6 18AU1964 C. 01946
1270 F 1 10AU1964 O.C8441
1272 C' 1 10SE1964 C.OC621
1275 0 2 17SE1S64 C. 11612
1278 0 6 18SE1964 C. 53807
1281 E 3 16SE1964 C. 29039
1284 E 6 17SE1964 1.22327
1287 F 3 15SE1964 0.70056
1289 C 7 14QC1964 €.27703
1292 D 1 150C1964 C.C1491
1295 D 4 15DC1964 C. 10703
1298 E 1 120C1964 C. 19657
1301 E 4 130C1964 C. 74185
1304 F 1 110C1964 0.43218
13C7 B 6 N01964 C. 05051
1310 C1 2 10N01964 C. 29252
1313 C 3 9NC1964 C. 16986
1316 0 6 9N01964 1.C5772
1319 E 3 7NC1964 C.79596_
1322 E 6 7NC1964 1.51631
1325 F_3 6NOJ.S64 1.41061__
1338 C 3 28WR1967 2.28222
1341 A 3 19AP1967 1.21497
1344 C 3 25AP1967 2.C8454
1347 E 2 23AP1967 2.C3390
1369 A 4 4HY1967 C.1C436
1372 C 5 5MY1967 1.24131
1375 E 3 7CY1967 C. 78443
1409 A 4 23MY1967 2.63643
1412 C 5 31KY1961 2.55072
1415 E 3 28MY1967 2.3C697
1432 A 4 13JN1967 3.93379
1435 C 7 13JM967 6.18824
1438 E 5 14JMS67 1.69208
1448 A 6 10 JL 1967 C. 49514
1451 C 7 16JL1967 1.46845
1454 E 5 15JL1967 C. 35007
1506 A 6 29AU1967 C.OC523
1511 E 2 1SE1967 1.86C21
1532 A 3 18SE1967 C.C4599
1535 C 7 20SE1967 C.C1288
1538 £ 5 23SE1967 2.32006
1541 E 2 11CC1967 C. 28205
1377 GS 1 9NY1967 C. 16228
1380 CS 4 9PY1967 2.66685
1383 GS 7 IOHY1967 1.21632
1386 GS10 12CY1967 C. 25280
1389 GS13 12HY1967 C. 09282
1392 GS16 12PY1967 C.75816
1395 GS19 13KY1967 C. 27480
1398 GS22 14HY1967 1.59395
1556 GS 3 3CC1967 C. 07822
1559 GS 7 40C1967 C.?7HOP
1562 CS10 50C1967 C. 69078
1565 GS13 5DC1967 C.C3Q42
1568 GS16 50X1967 C. 67243
1571 GSJ9 60C1967 C.C5151
1574 C-S22 60C1S67 C. 44564
1547 HS 1 20C1967 C. 03194
1521 SH 1 18SE1967 C.C6347
1527 TR 1 20SE1967 O.C5660
1530 FR 1 24SE1967 C. 14001
1549 CO 1 4DC1S67 1.60340
1550 PR 1 50C1967 C. 19824
1426 fS 2 29MY1967 14.89764
1417 HO 2 22PY1S67 2.23194
1425 DA 2 25MY1967 3.56058
1402 1R 2 6KY1961 C. 92593
1353 FR 2 23AP1567 1.46624
1403 CA 2 10MY1967 1.67386
1419 BU 2 23MV1967 5.07140
1430 *C 2 12JNW67 0-54281 >
Synedra demerarae Grun.
Synedra ? demeTarae Grunow -Lni Van Heurck, Syn. Diat. Belgique, pi. 41,
fig. 29. 1881.
Cells in girdle view linear, slightly narrowed toward the ends. Cells
sometimes attached by the valve faces into short, band-shaped colonies.
186
-------
2 5 4u III A A -a?±tate ^^ SP£cime<* from Lake Michigan 20-90y
wideband more ?' ^ T* Mghly Variable» ^ the smaller individuals
form LT i lanceolate, in the larger individuals narrow and fili-
lareer f H J T* T^ ^^ ** m°St sPecimen«» i» ^ome of the
larger individuals parked by a few partially developed striae near the center
of the valve. Striae appearing very coarse and well defined 8-12, usually
8-10 ln 10w. One of the most distinctive features of this taxon is the al-
ternate placement of the striae on the two sides of the axial area rather
than being opposite one another as is the case in most species of the genus.
The identity of the specimens from Lake Michigan assigned to this taxon
is somewhat questionable. The striae are not marginal as in Grunow's ori-
ginal illustration except in the very small individuals. The size range of
our specimens is also considerably greater than that reported by other authors
(Patrxck and Reiner^1966). There is also some question as to the correct
generic classification in that our specimens sometimes occur in colonies
similar to Fragilapia. As has been pointed out by numerous authorities, colony
formation is an extremely tenuis taxonomic characteristic in diatoms and a
number of the smaller taxa are more or less arbitrarily assigned to either
Synedra or Frag-ilaria although they may adopt the growth habit "characteris-
tic" of either genus.
670 SYOEHFRC TCT KC CF STATIONS 153
160971 CH 1676 0.04724 1 ( 354C CH 11MY1879 0.10716
{ 3507 CH 19FEL8B1 0.20376
I4690« TH DEI-MS 0.02014
(46914 CH 19AP1946 0.01261
(46970 CH 20DE1946 0.06011
(46912 CH AP1947 0.03449
14*919 r.H 5JN1947 0.01214
(46758 EV 5JN1937 0.08915
146770 FV 9JL1937 0.03578
(46747 EV 1AU1937 0.19B03
I4A7-S? EV 15SE1937 0.08707
(46744 EV 60C1937 0.02439
(467AH FV 16MR1938 O.CB82C
(46772 EV 18AP1938 0.01419
T4fi7ftl FV J7MY193H O.nrfllfl
1225 C 6 15MY1964 0.01568
1229 D 5 14MV1964 0.01903
1232 E 5 16MY1964 0.24349
1240 D 6 10JN1964 0.00153
1-243 E 6 13JN1964 0.01462
1257 E 3 14JL1964 0.00239
1280 E 2 16SE1964 0.00681
1297 D 6 14DC1964 0.01523
1306 f 3 110C1S64 0.00277
1321 E 5 7N01964 0.00636
1336 C 3 27JA1967 0.00578
1339 C 5 28MR1967 0.02182
1342 A 4 19AP1967 0.01444
1345 C 5 25AP1967 0.02924
1348 E 5 23AP1967 0.19191
1370 A 6 3MY1967 0.17033
1373 C 7 5MY1967 0.11695
1376 E 5 6KY1967 0.78705
1410 A 6 24MY1967 0.03383
141^ r. 7 25MY1967 0. 14531
1416 E 5 28MY1967 0.07654
1433 C. 3 17JM967 0.01938
1437 E 3 15JM967 0.00538
1453 E 3 15JL1967 0.00758
1535 C 7 20SE1967 0.00322
1377 GS 1 "5MY1967 0.02771
1380 GS 4 9MY1967 0.15806
1383 GS 7 10MY1967 0.04812
1386 6S10 12NY1S67 0.08905
1369 GS13 12MY1967 0.01031
( 1392 GS16 12MY1S67 0.04315
( 1395 GS19 13MY1967 0.00587
1 1560 GS 8 4OC1967 0.00472
146910 CH OC1945 0.009B3
(46?17 CH 12JA1946 0.00943
[46524 CH 10HY1946 0.05573
I46SC5 CH JA1947 C. 03922
(46916 CH 4MY1947 0.00305
(46SC7 CH JL1947 C.01B74
(46743 EV 20JN1937 0.03426
(46764 EV 17JL1937 0.16116
(46763 EV 23AU1937 C.0608B
146760 EV 22SE1937 0.33483
(46767 EV 27QC1937 0.06576
146762 EV 18*81938 0.02206
146756 EV 27AP1938 0.04533
(46766 FV 14DE1938 0.09506
( 1227 C' 2 13MY1964 0.00768
( 1230 E 2 16MY1964 O.OOBB9
( 1236 C' 1 8JN1964 C. 00700
1 1241 E 2 13JN1964 O.C0444
( 1244 f \ 11JN1964 0.00329
( 1258 F 1 6JL1964 0.01888
1351 Ml 2 21AP1967 0.00621 )
1400 SB 2 6EY1967 0.04170 1
1285 F I 15SE1964 0.02330
1304 F 1 110C1964 0.00494
1316 D 6 9N01964 0.00378
1322 E 6 7M31964 0.04666
1337 C 3 2MR1967 0.04997
1340 C 7 28HR1967 C. 06036
1343 A 6 19AP1967 C. 01042
1346 C 7 21AP1S67 C. 05074
1368 A 3 4MY1967 C. 17279
1371 C 3 4HY1967 0.04155
1374 £ 2 7MY1967 0.04184
14C8 A 3 23MY1967 0.07602
1411 C 3 31HY1967 0.28720
1414 E 2 28MY1967 0.01343
1431 A 3 12JN1967 0.00515
1434 C 5 17JN1967 0.00897
1438 E 5 14JN1567 0.06173
15C6 A 6 29AU1967 0.00523
1536 E 2 24SE1967 0.00273
1378 GS 2 9MY1967 C. 34061
1381 GS 5 10MY1967 0.25760
1^84 GS 8 10MY1967 C. 02033
1387 GS11 12HY1967 0.13862
1390 GS14 12KY1967 0.01762
1393 GS17 13HY1967 0.04657
1398 GS22 14KY1967 0.00911
1561 GS 9 40C1967 0.00587
15?6 MD 1 20SE1967 0.01138
1417 HO 2 22HY1967 0.00374
1"52 Khl 2 21AP1967 0.01718
( 3541 CH 1FE1881 C.1C760
(46921 CH 23N01945 0.02005
(46915 CH 20FE1946 O.C6B29
(4692.3 CH 22ND1946 0.22293
I469C9 CH KD1947 0.07286
(46906 CH MY1947 0.01261
(46922 CH 21AU1947 C. 00436
(46745 EV 3J11937 C. 02090
(46757 EV 25JL1937 0.01444
(46765 EV 30AU1937 0.00558
(46750 EV 24SE1937 C.OC943
(46749 EV 12MR1938 C. 03641
(46751 EV 30NR1938 0.03350
(46759 EV 19HV1938 C.OC338
1224 B 4 18HYI964 C. C1568
1228 D 2 14HY1964 C. 01557
1231 E 3 16HY1964 C.C2201
1239 0 4 11JN1964 0.01625
1242 E 3 13JN1S64 C.CC300
1256 E 2 14JL1964 C.OC366
1260 F 3 6JL1964 0.00382
1292 D 1 150C1964 C.OC373
1305 F 2 110C1964 0.00173
1320 E 4 7N01964 C.OC414
1323 F 1 6N01964 C.CC139
1338 C 3 28HR1967 C. 09256
1341 A 3 19AP1967 C. 16706
1344 C 3 25AP1967 C. 00993
1347 E 2 23AP1967 O.C2276
1369 A 4 4MY1967 C. 19755
1372 C 5 5WY1967 C. 04611
1375 f. 3 7MY1967 C. 19972
1409 A 4 23MY1967 C. 06546
1412 C 5 31HY1967 C. 02105
1415 E 3 28MY1967 C.OC899
1432 A 4 13JM967 C.C3576
1436 E 2 15JN1967 0.01447
1450 C 5 16JL1967 C. 00381
1511 E 2 1SE1967 C. 00307
1536 E 5 23SE1967 C. 00552
1379 fiS 3 9MY1967 0.25687
1382 CS 6 10MY1967 C. 13600
1385 C-S 9 10MY1967 C. 04003
1388 6S12 UHY1S67 C.C2413
1391 C-S15 I2FY1967 C. 18675
1394 GS18 13CY1967 C. 04616
1559 C-S 7 40C1967 C.CC350
1574 GS22 60C1967 C. 00288 )
1529 KH 1 2OTE1967 C.C1199 )
1402 TR 2 6MY1967 C.C6498 1
1423 V>A 2 25KY1967 C.OC856 )
187
-------
Synedra filifornris Grun.
Synedra filiformis Grunow in: Cleve and Grunow, Svenska Vet.-Akad. Handl.,
Ny Foljd, 17(2):106, pi. 6, fig. 116. 1880.
Cells in girdle view very narrow, linear, occurring singly or in bushy
colonies. Valves elongate-lanceolate with very fine, rounded, ends. Speci-
mens from Lake Michigan 45-195u long, only l-2p broad. The frustule is very
lightly silicified and the striae are very fine in structure and difficult
to resolve. Striae more or less marginal, parallel throughout the length
of the valve, 26-30 in lOy. Axial area relatively wide, indistinctly bor-
dered. In the specimens from Lake Michigan a central area is entirely lacking.
At the present time the taxonomy of the members of the genus Synedra
that display extreme adaptations to planktonic existence is extremely con-
fused. Many authors have considered many of these forms to be varieties of
S. aous. Our observations do not support this view. The species most closely
resembling the taxon discussed here are S. ostenfeld-ii, which is distinguished
by its somewhat coarser structure and S. t&nera, which is distinguished by
its still finer structure and somewhat smaller size range. Synedra nana has
been reported from Lake Michigan (Williams and Scott 1962) but their identi-
fication was apparently based on descriptions and illustrations published by
Hustedt (1931) which in no way resemble the original description and illus-
tration of Meister (1912).
703 SVSPECOF TCT NO OF STATIONS 277
1
60973 CH 1876 0.23618
46921 CH 23N01945 0.02846
46914 CH 19AP1946 0.01175
46909 CH MPU947 0.02277
46906 CH MY1947 2.67468
46913 .CH 6AU1947 0.01046
46771 EV 11JN1937 1.59764
46747 EV 1AU1937 0.04703
46752 EV 15SE1937 0.04354
46744 EV 60C1937 0.54623
46749 EV 12HR1938 0.02427
46751 EV 30MR1938 0.01117
46759 EV 19MY1938 0.08440
1774 B 4 18NY1964 O.CC392
1227 C1 2 13MY1964 0.00548
1230 E 2 16MY1964 0.02963
1233 B 3 5JN2964 O.C2620
1439 B 6 5JN1964 3.07692
1238 0 3 11JN1964 0.21600
1741 F 7 13JN1964 C. 15968
1244 F 1 11JN1964 0.00658
1247 B 3 14JL1964 C. 04695
1441 B 6 24JL1964 4.16309
1751 C 7 16JL1964 0.28681
1254 D 2 15JL1964 7.50B14
1257 E 3 14JL1964 10.88647
1260 F 3 6JL1964 3.34244
1443 B 6 16AU1964 O.OC988
1265 C1 2 1CAU1964 0.01788
176H E 2 15AU1964 2.29784
1444 B 6 19SE1964 O.OC909
1273 C' 2 10SE1964 0.02688
1277 D 4 18SE1S64 0.04338
1787 E 4 16SE1964 0.05540
1265 F 1 15SE1964 0.01747
17RR B 3 15QC1964 0.00653
1290 C1 1 160C1964 0.01516
1793 D 2 150C1964 0.33016
1296 D 5 140C1964 0.06688
MOO E 3 130C1964 0.50116
1303 E 6 13QC1964 0.03358
1JUO I- 1 IIULIMD* U.UUZII
1309 C1 1 ION01964 0.00804
1312 D 2 8N01964 0.08692
1315 D 5 9N01964 0.14559
1318 E 2 7N01964 0.11986
1321 E 5 7N01964 0.4916C
1324 F 2 6N01964 0.01630
1338 C 3 2SMR1967 0.20363
1341 A 3 19AP1967 0.30374
1344 C 3 25AP1967 0.04632
1347 E 2 23AP1967 C. 91050
1369 A 4 4KY1967 0.01864
J374 E 2 7MY1967 0.01195
( 3541 CH 1FE1681 C. 00978
(46917 CH 12JA1946 0.00194
(46S24 CH 10MY1946 0.57354
(46912 CH AP1947 0.02300
(46919 CH 5JN1947 C. 78906
(46922 CH 21AU1947 0.02859
(46743 EV 20JN1937 C. 04710
(46765 EV 30AU1937 0.01673
(46760 EV 22SE1937 0.01477
(46748 EV 130C1937 C. 02135
(46768 EV 16MR1938 0.02940
(46772 EV 18AP1S38 C. 00710
146761 EV 27MY1938 C. 01090
< 1225 C 6 15MY1964 0.01176
( 1228 0 2 14KY1964 O.C1168
( 1231 E 3 16MY1964 0.01712
( 1234 B 3 18JN1964 0.23898
( 1236 C1 1 8JN1964 C.C0350
( 1239 0 4 11JN1964 C. 00580
( 1Z42 E 3 13JN1964 0.01499
( 1245 F 2 11JN1964 0.02766
I 1248 B 3 24JL1964 0.06897
I 1249 C 3 8JL1964 0.01358
( 1252 C' 1 16JL1964 0.01395
( 1255 0 5 15JL1964 16.52892
( 1258 F 1 6JL1964 2.80813
1 1262 B 3 17AU1964 0.01260
( 1263 C 7 15AU1964 0.01201
( 1266 0 3 18AU1964 4.17427
{ 1269 E 3 15AU1964 12.27868
( 1271 C 7 22SE1964 0.01959
( 1275 D 2 17SE1964 0.05161
( 1279 E 1 16SE1964 0.03141
( 1283 E 5 16SE1964 1.07270
( 1286 F 2 15SE1964 0.05473
( 1445 B 6 140C1964 0.11742
( 1291 C' 2 16QC1964 0.00245
I 1294 D 3 15GC1964 0.11867
( 1297 D 6 140C1964 C. 01333
( 1301 E 4 130C1964 0.67562
( 1304 F 1 110C1964 0.01729
i nu, a k N01964 0.01804
( 1310 C1 2 10N01964 0.09524
( 1313 0 3 9N01964 C. 22973
( 1316 0 6 9N01964 0.00756
1 1319 E 3 7N01964 0.36656
( 1322 E 6 7N01964 0.31326
( 1325 F 3 6N01964 0.00252
{ 1339 C 5 28MR1967 0.04677
I 1342 A 4 19AP1967 0.71463
( 1345 C 5 25AP1967 1.77378
( 1348 E 5 23AP1967 0.31254
( 1370 A 6 3MY1967 0.00230
( 1375 E 3 7MY1967 0.00722
1
I
(
(
•
46910 CH OC1945 C. 00109
46915 CH 20FE1946 0.26453
46923 CH 22N01946 0.00874
46916 CH 4MY1947 0.00543
46907 CH JL1947 0.16026
46758 EV 5JN1937 C. 79880
46764 EV 17JL1937 0.01612
46769 EV 7SE1937 C. 02171
46750 EV 24SE1937 C. 12726
46767 EV 27CC1937 C. 37136
46762 EV 18MR1938 0.26467
46756 EV 27AP1S38 C. 02015
46766 EV 140E1938 C. 09506
1226 C 7 16MY1964 C.CC761
1229 D 5 14MY1964 0.01692
1232 E 5 16MY1964 C.CC348
1235 C 7 16JN1964 C.C5649
1237 C1 2 8JN1964 C. 47693
1240 D 6 10JN1964 C. 29452
1243 E 6 13JK1964 C. 36541
1246 F 3 11JN1964 0.20917
1440 B 6 11JL1964 9.26621
1250 C 6 10JL1964 3.59712
1253 C' 2 16JL1964 C. 31952
1256 E 2 14JL1964 5.12933
1259 f 2 6JL1964 3.25359
1442 B 6 2AU1944 C. 59707
1264 C1 1 10AU1964 C.OC193
1267 0 6 18AU1964 C. 00216
1270 F 1 10AU1964 0.00272
1272 C1 1 10SE1964 C.OC821
1276 0 3 18SE1964 0.06705
1281 E B 16SE1964 4.94447
1284 E 6 17SE1964 0.01589
1267 F 3 15SE1964 C. 02502
1289 C 7 140C1964 0.01319
1292 0 1 15CC1964 0.05354
1295 0 4 150C1964 C. 06324
1299 E 2 120C1964 0.01571
1302 E 5 130C1964 C. 78144
1305 F 2 linri9A4 C. 00518
1308 C 7 6N01964 0.03954
1311 D 1 BN01964 C. 10835
1314 0 4 9M01964 C. 14067
1317 f. 1 6NC1964 0.20679
1320 E 4 7N01964 0.72389
1323 F 1 6N01964 0.01951
1337 C 3 2MR1967 0.06761
1340 C 7 28HR1967 C.2C361
1343 A 6 19AP1967 0.00208
1346 C 7 21AP1967 C. 23367
1368 A 3 4MY1961 C.OC628
1372 C 5 5MY1967 C. 00355
1376 E 5 6MY1967 C. 01124
188
-------
( 1*11 C 3 31MY1967 0.00*10
( 1*1* E 2 28MY1967 0.02015
t 1*31 A 3 12JN1967 0.72096
t 1*3* C 5 17JNIS67 0.637*2
( 1*37 E 3 15JN1967 0.27454
< 1**7 A * 11J11967 ll.*6145
( 1*50 C 5 16JL1967 9.4A196
( 1*53 E 3 15JH967 4.42332
1 1505 A * 28ALJl<5fe7 0.17S70
( 1510 C 7 29AU1967 0.07588
I 1513 E 5 31AU1967 1.77359
I 1536 E 2 24SE1967 2.290*5
( 1541 E 2 110C1967 C.0106*
i 1380 GS * 9MY1967 0.013*5
1 1383 GS 7 10MY1967 0.01871
( 1387 GS11 12MY1967 0.059*1
J 1391 GS15 12MY1967 0.01*37
1 139* GS16 13MY1967 0.2*082
J 1398 GS22 14MY1967 0.0*55*
( 1557 GS * 30C1967 0.0*111
J^1562 GS10 50C1967 0.007*0
I 1565 GS13 50C1967 0.0101*
( 1571 GS19 60C1967 0.0023*
( 1575 GS28 60C1967 O.OG258
( 1546 LU 1 2GC1967 0.01501
( 1527 TR 1 20SE1967 0.031*5
| 1530 FR 1 2*SE1967 0.01000
< 1551 ES 1 5CC1967 0.17573
1 1553 SG 1 60C1967 0.051*1
( 1351 HI 2 21AP1967 0.7**76
1 1350 BH 2 19AP1967 0.01101
I 1401 HO 2 6PY1967 0.0*116
1 1352 KW 2 21AP1967 2.61123
( 1429 WL 2 29KY1967 0.02123
( 1405 ES 2 12MY1967 0.59965
( 1419 BU 2 23KY1967 O.*0278
I 1422 GA 2 23MY1967 0.4C873
1 1430 MC 2 12JN1967 0.02467
)
)
1
1*12 C 5 31HY1967 0.01263
1*15 E 3 28MY1967 0.0112*
1*32 A * 13JN1967 2.14570
1*35 C 7 13JN1967 2.65210
_1*3B E 5 14JN1967 0.14887
I**6 A 6 10JL1967 0.02122
I*51 C 7 16JL1967 0.7578*
1*5* E 5 15JH967 O.*5609
15Q8 C 3 2SE1967 O.OB79?
1511 E 2 1SE1967 3.86776
1532 A 3 18SE1967 0.00657
1537 E 3 24SE1967 0.66419
15*2 E 3 110C1967 2.13588
1381 GS 5 10MY1967 C.0095*
138* GS 8 10WY1967 C. 01294
1368 GS12 12MY1967 0.00603
1392 GS16 12KY1967 C. 04007
1395 GS19 13HY1967 0.01996
1554 GS 1 30C1S67 0.78275
1558 GS 5 40C1967 0.01189
1563 _ GS11 50C1967 0.01403
1568 GS16 50C1967 0.00577
1572 GS20 60C1967 0.00090
154* MU 1 20C1967 C. 00715
1521 SH 1 18SE1967 C.0115*
1523 SB 1 20SE1967 0.0144*
15*5 UL 1 20C1567 0.01351
1552 SM 1 6UC1967 0.03301
1*28 MU 2 29HY1967 0.00301
1*27 LU 2 29KY1967 1.01695
1*25 RA 2 25MY1967 0.17682
1*02 TR 2 6MY1967 0.0*873
1353 FR 2 23AP1967 0.01055
1*03 C« 2 10MYH67 3.138*8
1407 SM 2 1**Y1967 0.01791
1*20 IH 2 23MY1967 0.33233
1*23 WA 2 25PY1967 0.18*13
1*10 A 6 2*MY1S67 C. 05074
1*13 C 7 25MY1967 C. 00316
1*16 E 5 28MY1961 C.C3936
1*36 t 2 15JN1967 C.5C659
l**6 A 3 11JL1967 4. 79429 )
14*9 C 3 16JH967 12.3C46* )
1452 E 2 14JL1967 3.278*1 )
150* A 3 28AU1967 C.OC2*7 )
1509 C 5 2SE1967 2.11971
1512 E 3 1SE1967 7.69593
1535 C 7 20SE1967 O.G0966
1538 E 5 23SE1967 C. 1*915
1379 GS 3 9HY1967 C.CC309
1382 GS 6 10MY1967 C. 00555
1385 GS 9 10MY1967 C.C0942
1390 CS1* 12HY1967 C. 00587
1393 GS17 13MY1967 C. 01370
1397 GS21 13MY1967 C. 00131
1555 GS 2 30C1967 C. 01*12
1560 GS 6 40C1967 C. 02834
1564 CS12 50C1967 C. 00165
1569 GS17 50C1967 C. 00297
1573 GS2 6OC1967 0.01008
1547 HS 20C1967 C.C0798
1526 HO 20SE1967 C. 02845
1529 KU 20SE1967 C. 05996
1549 PC. 4DC1967 C. 01370
1550 f« 1 5CC1967 C. 18585
1*26 PS 2 29MY1967 C. 06299
1*17 HO 2 22HY1967 C. 02617
1399 PW 2 5HY1967 0.0*081
1400 SB 2 6MY1967 0.04765
1354 GH 2 25AP1967 0.02071
140* CO 2 10KY1967 C.C5081
13*9 CI 2 19AP1967 C.C8981
[ 1421 CM 2 23KV1967 C. 20819
[ 1424 KM 2 25MY1967 0.26645
Synedra faso-Loulata (Agardh) Kutz.
Diatoma fasci.aula.ta Agardh, Disp. Alg. Sveciae, p. 35. 1812.
Synedra faso-Loulata (Agardh) Kutzing, Bacill., p. 68. 1844.
Cells in girdle view broadly rectangular, often occurring in colonies
of 2 or more cells. Valves linear to linear-lanceolate with broadly rounded
to subrostrate ends. Specimens from Lake Michigan 74-220]j long, 4-6p broad.
Striae marginal, appearing rather coarse, 12-15 in lOy. Axial area a broad
lanceolate space without ornamentation. No specially defined central area is
present. A distinct slime pore is usually visible near one end of each valve.
Most reports of this entity come from waters of high conductivity. In
Lake Michigan it has been noted only in polluted harbors and appears to be
associated with appreciable chloride contamination.
_47L._SM
CT NO OF STATIONS 7
1426
1*29
MS 2
HL 2
29MY1967
29MV1967
0.00238 1
0.05249 1
0-1C617 1
( 1521
( 1417
<
SH 1
HO 2
18SE1967
22KY1967
0.00577 (
0.00374 )
1 1428
1 135*
PU 2
GH 2
29MY1967
C. 01808 )
Synedra m-Lnusoula Grun.
Synedra minuscula Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 39,
fig. 13. 1881.
Cells in girdle view elongate rectangular. Valves linear-lanceolate to
lanceolate with more or less sharply attenuated, sometimes slightly protracted,
ends. Specimens from Lake Michigan 15-30U long, 2-3U broad Striae parallel
throughout the length of the valve, finely structured but distinct, 18-20 in
lOy. Axial area narrow, distinct. In the Lake Michigan specimens the cen-
tral area is usually entirely lacking; when present it consists of a small
structureless area surrounded by a few shortened striae.
189
-------
This species is rare in our collections. The specimens observed are
probably ultimately derived from periphyton communities. Previous reports
indicate that this species reaches its greatest abundance in periphyton
communities where it grows attached to filamentous algae.
675 SYM1NUSC TOT HP Of STATICHI!
160973 CH 1876 0.02362
(.46924 CH IOPY1946 0.00071
(46916 CH 4MY1947 0.00136
146913 CH 6AU1947 0.01046
(46771 EV 11JN1937 0.00951
146764 EV 17JL1937 0.07252
<46763 EV 23AU1937 0.18263
14*750 EV 24SE1937 0.09426
146762 EV 16MR1938 0.04411
( 1441 B 6 24JL1964 0. 00220
I 1279 E 1 16SE1964 0.00393
I 1321 E 5 7NC1964 O.OC319
1 1449 C 3 16JL1967 0.00382
< 1536 E 2 24SE1967 0.00273
1 1556 GS 3 3CC1967 0.00521
( 1567 SS15 5CC1967 0.00159
1 154(, LU 1 20C19A7 0.96034
( 1545 WL 1 2CC1967 0.73654
1 15*1 FS, 1 50C1967 0.00799
1 1427 LU 2 29MY1967 0.02421
1 1353 FR 2 23AP1967 0.01055
•
146910 CH CC1945 C. 00109
46923 CH 22N01946 0.00219
46S06 CH MY1947 C. 00199
46922 CH 21AU1947 0.00145
46743 EV 20JN193T 0.03426
46757 EV 25JL1937 0.04333
146752 EV 15SE1937 0.10884
46749 EV 12MR1938 0.01214
146756 EV 27AP1938 0.00168
1255 D 5 15JL1964 0.00513
1285 F 1 15SE1964 0.01747
1370 A 6 3HY1967 O.C0230
145C C 5 16JL1967 0.00190
1540 C 5 4CC1967 0.00496
1558 GS 5 40C1967 0.00793
1544 MU 1 20C1967 0.00715
1526 HD 1 20SE1967 0.01707
1548 CA 1 3CC1967 0.01272
1550 MR 1 50C1967 0.09912
( 1417 HC 2 22HY1967 0.00374
I
[46914 CH 19AP1S46 0.00320
146909 CH HR1947 C. 00*55
46919 CH 5JN1947 Z. 26855
46758 EV 5JN1937 1.39790
46770 EV 9JL1937 C. 01789
46747 EV IAU1937 0.02971
-46760 EV 22SE1937 C.OC492
4676B EV 16MH1936 C. 01470
1439 B 6 5JN1964 C.OC599
1257 E 3 14JL1964 O.CC718
1J«6 F 3 15SE1964 C.01095
1431 A 3 12JN1967 0.00257
1452 E 2 14JL1961 C. 00213
1542 £ 3 110C1967 0.01017
1560 ES 8 4CC1967 C. 00472
1547 M 1 20C1967 C. 07186
1530 FR 1 24SE1967 0.09001
1549 CO 1 40C1967 C. 01370
1351 MI 2 21AP1967 C. 00310
1400 SB 2 6HY1967 C. 00596
Synedra montana Krasske
Synedra montana Krasske ex Hustedt in: Rabenhorst, Kryptog.-Fl. Deutsch-
land, 7(2)2:204, fig. 694. 1932.
Cells in girdle view very narrowly linear for most of their length,
abruptly expanded near the center. Valves very narrow except at the expanded
central portion, often more or less constricted at the center, with subcapi-
tate ends. Specimens from Lake Michigan 80-200y long, 3-4y broad at the
widest part, only 1-1.5y broad near the ends. Frustules are often curved.
Striae distinct, 12-14 in lOu. Axial area variable, often relatively broad
and lanceolate in outline, especially in the larger individuals. Central
area completely lacking in our specimens.
The specimens from Lake Michigan have somewhat coarser structure and a
greater size range than those originally described from the Alps. The
general morphology of the frustule is, however, essentially similar. It
appears that this species is much more common in periphyton communities in
Lake Michigan than it is in the plankton.
708 SYSPECDK TCT NC Of STATIONS 63 ^
_
..
-'
3541 CH 1FE1881 0.00978
46747 EV 1AU1937 0.02971
4675C EV 24SE1S37 0.01414
1440 B 6 11JL1964 0.00369
1259 F 2 6JL1964 0.01239
1298 E 1 120C1564 0.00269
\W! i 5 130C1S64 O.C1620
1305 F 2 110C1964 0.01553
1310 C' 2 1CNQ1964 0.01134
1313 D 3 9N01964 0.00579
1317 E 1 6N01564 0.00574
1321 E 5 7N01S64 0.00319
1324 F 2 6N01964 0.00466
1432 A 4 13JN1967 0.00511
1449 C 3 16JL1967 0.01146
1512 E 3 1SE1967 0.01178
1535 C 7 20SE1967 0.00322
1389 GS13 12MY1S67 0.00516
1554 GS 1 3GC1S67 0.01779
1562 GS10 50C1967 0.00247
1425 RA 2 25MY1967 0.03536
146917 CH 12JA1946 0.00028
146763 EV 23AU1937 C. 06088
(46749 EV 12MR1938 0.02427
1257 E 3 14JL1964 0.00239
1442 B 6 2AU1964 0.00682
1299 E 2 120C1964 0. 00314
1303 E 6 13GC1964 0.00560
1348 C ^ 6N01964 C. 00304
1311 D 1 8N01964 C. 02064
1314 0 4 9N01964 C. 00861
1319 E 3 7N01964 0.00262
1322 E 6 7N01964 0.00667
1225 F 3 6NQ1964 0.00504
1433 C 3 17JN1967 0.00646
1450 C 5 16JL1967 0.00571
1532 A 3 18SE1967 0.00329
1540 C 5 40C1967 0.00496
1393 6S17 13HY1967 0.00822
1557 GS 4 30C1967 0.00747
1526 MC 1 20SE19&7 0.00569
1403 CA 2 10NY1967 0.01308
(46913 CH 6AU1S47 C. 01046
(46760 EV 22SE1937 C. 01477
(46762 EV 18MR1938 C. 04411
1258 F 1 6J11964 C.OC944
1270 F 1 10'AU1964 C. 00272
1300 E 3 13QC1964 C. 00716
1304 F 1 110C1964 C.C0988
1309 C' 1 IONC1964 C. 02251
1312 D 2 8N01964 C.C1242
1316 0 6 9N01964 C. 00756
1320 E 4 7N01964 C.C4137
1323 F 1 6N01964 C. 01254
1348 E 5 23AP1967 C.OC137
1*47 A 4 11JL1967 0.00936
1510 C 7 29AU1967 C.OC316
1533 A 4 19SE1967 0.00464
1379 GS 3 9HY1967 C.OC619
1394 CS18 13MY1967 C.OC344
1558 CS 5 40C1967 C.C1189
1548 CA 1 30C1967 C.C3816
1404 CO 2 10MY1967 C. 03811
190
-------
Synedra ostenfeldU (Krieger) A. Cleve
Synedra aous var. ostenfeldU Krieger, Pflanzenforsch., 10:36, fig. 29-2b.
-1-7 ^ / •
Synedra ostenfeldU (Krieger) A. Cleve-Euler ex Stalberg, Verb. Internat.
Verein. Limnol., 9:194. 1940.
Cells in girdle view linear-lanceolate, narrowing Slightly from the
middle to the rectangular ends. In life several cells are united at one end
to form bushy colonies. Specimens from Lake Michigan 80-170y long, 2-3y
broad. Valves lanceolate with capitate ends, very lightly silicified. Striae
with very delicate structure 16-24 (usually 20-24) in lOji. Axial area rela-
tively broad, indistinctly bordered. Central area lacking in specimens from
Lake Michigan.
This species is quite common in the summer flora of Lake Michigan, es-
pecially in areas that have undergone some degree of eutrophication. It is
variable in morphology and the structures of the valve are so delicate that
thev are difficult to resolve satisfactorily except under optimal conditions.
702 SYSPECOB TOT NC OF STATIONS 271
( 3541 CH 1FE1881 0.01956
(46917 CH 12JA1946 0.00111
146924 CH 10MY1946 O.OC423
(46909 CH MR19/.7 0.02277
(46906 CH MY1947 5.60821
146911 CH 6AU1947 0.01046
(46771 EV 11JN1937 C. 99853
I«t765 EV 30AU1937 0.01673
(46749 EV 12MR1938 O.C8496
(46756 EV 27AP193B 0.89326
(46766 EV 14DE1938 0.03169
1225 C 6 15MY1964 0.24696
1228 0 2 14MY1964 0.21020
1231 E 3 16MY1964 0.34243
1234 8 3 18JN1964 0.12652
1J16 r.i 1 8JN1964 0.09627
1239 0 4 11JN1964 0.05570
1J47 F 3 I3JN1964 0.19033
1245 F 2 UJN1964 0.09681
1248 B 3 24JL1964 0.13794
1249 C 3 8JL1964 0.01358
1252 C1 1 16J1-1964 0.01674
1255 0 5 15JL1964 5.92885
1258 F 1 6JL1S64 0.22182
1261 B 3 2AU1964 0.02944
1443 B 6 16AU1964 0.01186
1266 D 3 18AU1964 0.22099
1269 £ 3 15AU1964 4.98821
1272 C1 1 10SE1964 0.00821
1275 D 2 17SE1964 0.01935
1278 D 6 18SE1964 0.01922
1281 E 3 16SE1964 4.39509
1284 E 6 17SE1964 0.05719
1287 f 3 15SE1964 0.19015
1290 C1 1 160C1964 0.01137
1295 D 4 150C1964 0.05351
1298 E 1 120C1'.64 0.00539
1301 i 4 130C1964 0.09273
1307 B 6 N01964 0.01443
1310 C" 2 10N01964 0.00660
1313 D 3 9N01964 O.C5405
1316 0 6 9N01964 0.20777
1319 E 3 7N01S64 0.85356
1322 E 6 7N01964 0.35325
1337 C 3 2PR1967 0.080B4
1340 C 7 28MR1967 0.66173
1343 A 6 19AP1967 0.12644
1346 C 7 21AP1967 1.02813
1368 A 3 4MY1967 0.65975
137_1 C 3 4MY1967 0.00462
1374 E 2 7MY1967 0.00598
_J408 A 3 23WY1967 0.31302
1411 C 3 31NY1967 0.14360
\it\i, , E. ; 28WY1967 C.47C19
1431 A 3 12JN1967 2.70361
1434 _C_ 5 17JN1967 0_,57722
1437 E 3 15JN1967 1.31887
1447 A 4 11JL1967 1.39175
1450 C 5 16JL1967 3.99S86
1415^ £ 3 15JL1967 7.25425
1505 A 4 28AU1967 0.01031
l"in? C 5 7SE1967 0.847B9
1512 E 3 1SE1967 12.36846
1 _1333 A 4 19SE1967 0.02321
(46921 CH 23NC1945 0.00194
(46915 CH 20FE1946 0.07967
(46923 CH 22N01946 0.00874
(46912 CH AP1947 0.06899
(46919 CH 5JN1947 1.18359
(46922 CH 21AU1947 0.10468
(46743 EV 20JN1937 0.18412
(46750 EV 24SE1937 C. 00471
(46751 EV 30MR1938 0.01117
(46759 EV 19MY1938 C. 07090
1223 B 3 18MY1964 0.06563
1226 C 7 16MY1964 0.45282
1229 D 5 14HY1964 0.14802
1232 E 5 16MY1964 0.08696
1235 C 7 16JN1564 0.28808
1237 C< 2 8JN1964 0.36092
1240 0 6 10JN1964 0.07056
1243 E 6 13JN1964 C. 19001
1246 F 3 11JN1964 0.26893
1440 B 6 11JL1964 3.09540
1250 C 6 10JL1964 1.43885
1253 C' 2 16JL1964 0.44048
1256 E 2 14JL1964 2.17997
1259 F 2 6JL1964 1.19298
1262 B 3 17AU1964 C. 02730
1263 C 7 15AU1964 C. 02002
1267 D 6 18AU1964 0.00216
1444 B 6 19SE1964 0.02122
1273 C' 2 10SE1964 0.09678
1276 D 3 18SE1964 1.13992
1279 E 1 16SE1964 0.02356
1282 E 4 16SE1964 C. 91967
1285 F 1 15SE1964 0.08153
1445 B 6 140C1964 0.03588
1293 0 2 150C1964 0.01415
1296 0 5 140C1964 0.04328
1299 E 2 120C1S64 0.01257
1302 E 5 130C1964 0.12957
1308 C 7 6NQ1964 0.00304
1311 D 1 8N01964 0.00774
1314 C 4 9N01964 0.04306
1317 E 1 6N01964 0.01532
1320 E 4 7NQ1964 C. 28956
1324 F 2 6NC1964 0.00466
1338 C 3 28HR1967 0.15735
1341 A 3 19AP1967 0.45562
1344 C 3 25AP1967 1.15808
1347 E 2 23AP1S67 2.27624
1369 A 4 4MY1967 0.01491
1372 C 5 5KY1967 C. 12058
1375 E 3 7MY1967 0.09865
1409 A 4 23MY1967 0.19044
1412 C 5 31MY1967 0.88391
1415 E 3 28MY1967 0.52615
1432 A 4 13JN1967 1.78809
1435 C 7 13JN1967 0.73880
1438 E 5 14JN1967 0.64633
1448 A 6 10JL1967 C. 01061
1451 C 7 16JL1967 0.15944
1454 £ 5 15JL1967 C. 28006
1506 A 6 29AU1967 0.00523
1?10 C 7 29AU1967 C. 04742
1513 E 5 31AU1967 C.7B038
1534 A 6 19SE1S67 0.00620
469C8 CH 061945 C. 02014
46914 CH 19AP1946 Q-Ql?fll
46920 CH 20DE1946 C.OC062
46916 CH 4MY1947 3.08754
46907 CH JL1947 C. 70519
46758 EV 5JN1937 C. 64903
46747 EV 1AU1937 C. 00743
46744 EV 60C1937 C. 01463
46772 EV 18AP1938 C.C4258
46761 EV 27MY1938 0.10356
1224 8 4 18MY1964 0.02544
1227 C1 2 13MY1964 0.05264
1230 E 2 16HY1964 0. 24004
1233 B 3 5JN2964 C. 36675
1439 B 6 5JN1964 1.11688
1238 0 3 1UN1964 C. 28000
1241 E 2 13JM964 0.15968
1244 F 1 11JN1964 0.04934
1247 B 3 14JL1964 0.02134
1441 B 6 24JL1964 2.62120
1251 C 7 16JL1964 C. 15354
1294 0 2 15JL1964 2.41333
1257 E 3 14JL1964 7.03433
1260 F 3 6JL1964 C. 93588
1442 B 6 2AU1964 1.07472
1265 C' 2 10AU1964 C.C4695
1268 E 2 15AU1964 0.42127
1271 C 7 22SE1964 0.02611
1274 D 1 17SE1964 0.01877
1277 D 4 16SE1964 C. 09295
1280 E 2 16&E1964 0.52420
1283 E 5 16SE1964 1.43435
1286 F 2 15SE1964 0.76620
1289 C 7 140C1964 O.CC879
1294 0 3 150C1964 C. 12526
1297 0 6 140C1964 O.C3808
13CO E 3 130C1964 C. 22552
1303 E 6 130C1964 C.C1119
1309 C' 1 10N01964 C. 00161
1312 0 2 8NO1964 0.00931
1315 D 5 9N01964 C.C5005
1318 E 2 7N01964 C. 02854
1321 E 5 7N01964 C.C4464
1336 C 3 27JA1967 0.00385
1339 C 5 26HR1967 0.43649
1342 A 4 19AP1967 1.38957
1345 C 5 25AP1967 2.5S244
1348 E 5 23AP1967 C. 32077
1370 A 6 3HY1967 C. 03222
1373 C 7 5HY1967 C.C2567
1376 E 5 6MY1967 C. 36541
1410 A 6 24KY1567 C. 51308
1413 C 7 25MY1967 0.10108
1416 E 5 28MY1967 C.2C556
1433 C 3 17JN1967 2.71283
1436 E 2 15JN1967 3.54610
1446 A 3 11J11967 0.68490
1449 C 3 16JC1967 9.62971
1452 £ 2 14JL1967 1.78622
1504 A 3 28AU1967 0.01728
1508 C 3 2SE1967 C. 19583
1511 E 2 1SE1967 0.71830
1532 A 3 18SE1967 0.01643
1535 C 7 20SE1967 C. 00322
191
-------
1536 E 2 24SE1967 0.95435
1540 C 5 40C1967 0.00496
1543 E 5 IOOC1967 0.02873
1379 GS 3 9KY1967 0.02476
1382 GS 6 10HY1967 0.00833
1385 GS 9 10MY1967 0.01648
1388 GS12 12MY1S67 0.01207
1392 GS16 12MY1967 0.04623
1395 GS19 13MY1967 0.01996
1554 GS 1 3DC1967 0.78275
1557 GS 4 30C1967 0.02616
1560 GS 8 40C1967 0.01889
1574 GS22 60C1967 0.00288
1551 «H 1 lft<:E1967 O.nr577
1529 KM 1 20SE1967 0.02398
1548 CA 1 30C1967 0.02544
1552 SM 1 60C1967 0.01321
1426 KS 2 29HY1967 3.86352
1417 HO 2 22HY1967 0.10842
1425 RA 2 25KY1967 0.20334
1402 TR 2 6KY1967 0.4006?
1353 FR 2 23AP1967 0.36920
1403 CA 2 IOMY1967 1.32078
1407 SM 2 14HY1967 0.08957
1419 BU 2 23HY1967 0.45771
1422 GA 2 23MY1967 0.37807
1430 NC 2 12JN1S67 0.02467
1537 " E 3 24SEIS47 9.05719
1541 E 2 11QC1967 C. 18626
1377 GS 1 9MY1967 0.01187
1380 GS 4 9MY1967 0.39348
1383 GS 7 10HY1967 0.10960
1386 GS10 12MY1967 0.01149
1389 GS13 12HY1967 0.00516
1393 GS17 13HY1967 0.04931
1397 GS21 13HY1967 0.00262
1555 GS 2 30C1967 0.05297
1558 GS 5 40C1967 0.03567
1561 GS 9 40C1967 0.00587
1547 MS 1 20C1967 0.01597
1526 MO I 70SE1967 0.05120
1530 FR 1 24SE1967 0.03000
1549 MQ 1 40C1967 C. 01370
1553 SG 1 60C1967 0.00734
1351 HI 2 21AP1967 0.49651
1418 SH 2 22MY1967 0.03110
1399 Pk 2 5MY1967 1.19695
1400 SB 2 6MY1967 0.80415
1354 GH 2 25AP1967 0.12773
1404 MO 2 10HY1967 0.07622
1349 CI 2 19AP1967 0.36281
1420 IH 2 23MY1967 0.52870
1423 WA 2 25MY1967 0,25693
1538 E 5 23SE1967 1.93338
1542 E 3 110C1967 2.13588
1378 GS 2 9MY1967 C.046Z6
1381 GS 5 10MY1967 C. 12641
1384 6S 8 10WY1967 0.12940
1387 CS11 12MY1967 C. 17823
1391 GS15 12MY1967 C.G3B31
1394 GS18 13HY1967 C. 34747
1398 CS22 14MY1967 C. 04554
1556 CS 3 30C1967 C. 02086
1559 CS 7 40C1967 C.1C142
1562 €S10 50C1967 C. 04194
1520 HO 1 18SE1967 C. 01414
15»7 TH k 2CSF1967 £.01258
1545 ML 1 2OC1967 C. 01351
1551 ES 1 50C1967 C. 01598
1428 HU 2 29MY1967 0.02109
1427 LU 2 29HY1967 3.29298
1350 BH 2 19AP1967 0.00220
1401 MO 2 6HY1967 C. 25282
1352 KU 2 21AP1967 0.93627
1429 HL 2 29HY1967 C. 19110
1405 ES 2 12MY19«7 C. 05805
1406 GB 2 13HY1967 C. 00270
1421 CH 2 23MY1967 C. 27758
1424 KM 2 25MY1967 C.5062«
Synedra parasitioa (Wm. Smith) Hust.
Odontidiim ? parasiticum Wm. Smith., Syn. British Diat., vol. 2, p. 19,
supp. pi. 60, fig. 375. 1856.
Fragilapia ? parasitiea (Wm. Smith) Grunow -Cn: Van Heurck, Syn. Diat.
Belgique, pi. 45, fig. 30. 1881.
Synedva parasitica (Wm. Smith) Hustedt in: Pascher, Sussw.-Fl. Mittel-
europas, Heft 10, Aufl. 2, p. 161, fig. 195. 1930.
Cells in girdle view rectangular, on focusing obviously expanded in the
central portion. Valves rhombic-lanceolate with much expanded centers and
narrow, sharply attenuated to subcapitate ends. Specimens from Lake Michigan
10-25y long, 4-6y broad. Axial area broad, lanceolate, without visible orna-
mentation. Striae finely structured, short 16-19 in lOy.
This species often grows attached to some of the larger tychoplanktonic
algae, especially members of the genera Ktzsehia, BuTirel1a3 and Cymatopleura.
676 SVPARAS1 TCT KC CF STATIONS 30
146921
( 46924
146905
(46758
I4A7A7
1 1245
( HBfl
( 1393
1 13
-------
Synedra pulohella Ralfs
Synedra pulchella Ralfs ex Kutzing, Bacill., p. 68, pi. 29, fig. 87. 1844.
t-hP PnH vi , slightly narrowed toward
the ends.^ Valves lanceolate to linear-lanceolate with attenuated, rostrate
or subcapxtate ends. Specimens from Lake Michigan 46-100u long, 5-7y broad.
Valves strongly silicified, all structures distinct and robust in appearance.
Axial area narrow, slightly lanceolate, broader toward the mid-portion of the
valve. Central area quadrate extending entirely across the mid-portion of the
valve, distinctly thickened at the margins with an ovoid, less thickened re-
gion occupying the center. This area sometimes contains ornamentation appear-
ing as partially developed striae. Striae well defined, distinctly punctate
parallel through most of the length of the valve, becoming slightly radiate
near the apices, 12-16 in lOy.
This species is most often reported from mineralized inland waters or
from brackish waters. It is very rare in Lake Michigan at the present time
but can be expected to become more abundant in areas receiving heavy pollution
from wastes high in chlorides.
678 SYPULCHE TOT NO OF STATIONS 5
I ISC') A 3
I 1350 BH 2
28AU1967
19AP19b7
0.00247 )
0.00220 1
( 1428
< 1406
MU 2
EB 2
29MY1967
13MY1967
0.01205 )
0.00539 )
I 1426
J
29HY1967 C.01050 >
Synedra rumpens Kutz.
Synedra rumpens Kutzing, Bacill., p, 69, pi. 16, fig,
1844.
6(6), figs. 4-5.
Cells in girdle view linear, very slightly narrowed toward the ends.
Valves linear-lanceolate with somewhat protracted, rostrate to subcapitate
ends. Specimens from Lake Michigan 30-70]4 long, 2-4y broad. Axial area
narrow, linear through most of the length of the valve, in some specimens
widened near the midportian of the valve. Central area a structureless
transverse fascia extending to the margins of the valve, not visibly thickened.
67-5 SYRUPPEN TCT MO OF STATICHS 46_
(6C973 CH 1876 0.07065
(46920 CH 20DE1946 0.00123
146922 CH 21AU1947 0.00097
146765 EV 30A01937 0.00558
(46749 EV 12Hfil938 0.01214
12B4 E 6 17SE1964 0.00635
1313 D 3 9ND1964 0.00579
1318 E 2 7N01964 0.00360
1321 £ 5 7NG1964 0.00638
1342 A 4 19AP1967 0.00180
1396 GS20 13MY1967 0.00143
1547 MS 1 20C1967 0.00798
1531 GH 1 25SE1967 C. 00845
1550 MR 1 50C1967 0.18585
I 1417 HO 2 22MY1967 0.01122
( 1354 GH 2 25AP1967 0.00863
(46917 CH 12JA1946 0.00083
(46916 CH 4MY1947 0.00034
(46764 EV 17JL1937 0.00806
(46752 EV 15SE1937 0.02177
(46768 EV 16MR1938 0.01470
( 1302 E 5 130C1964 0.02429
( 1314 D 4 9N01964 0.00574
1 1319 E 3 7N01964 C. 01571
I 1322 S t 7M01964 C. 00667
( 1371 C 3 4HY1967 0.00231
( 1574 GS22 60C1967 0.0028B
( 1522 BH 1 1SSE1967 0.00365
( 1545 ML 1 20C1967 0.01351
I 1428 MU 2 29HY1967 0.01205
( 1350 8H 2 19AP1967 C. 03084
(
46914 CH 19AP1946 0.00214 }
46919 CH 5JN1947 0.00455 )
46747 EV 1AU1937 C.OC743 )
46750 EV 24SE1937 0.00471
46756 EV 27AP1938 C.OC16S
1311 0 1 BN01964 O.OC516
1317 E 1 6NC1964 C.OC383
1320 E 4 7N01964 C. 01861
1324 F 2 6NC1964 C. 00466
1395 GS19 13MY1967 C. 00117
1544 Ml 1 20C1967 C. 00715
1527 TR 1 20SE1967 0.00629
1549 HO 1 40C1967 C. 01370
1427 IU 2 29MY1967 0.02421
135' ffi 2 23AP1967 C.C1055
Synedra rumpens var. familiaris (Kutz.) Hust.
Synedra familiax"i-s Kutzing, Bacillft, p. 68, pi. 15, fig. 12.
Synedra Twngens var. familiaris (Kutz.) Hustedt in: Pascher,
Mitteleuropas, Heft 10, Aufl. 2, p. 156, fig. 176. 1930.
1844.
Sussw.-Fl.
Valves linear-lanceolate, somewhat constricted in the middle and slightly
swollen on either side of the central area. Striae parallel throughout,
about 18-20 in lOp, appearing more delicate than in the nominate variety.
193
-------
680 SYRUHPVF TCT NO OF STATIONS
146757
1 1236
( 1527
EV
C' 1
TR 1
25JL1937
8JN1964
20SE1967
0.00481 )
0.00175 1
0.00629 1
(46763
1 U22
1 1428
EV
BH 1
HI 2
23AU1937
18SEI967
29HY1967
C. 12175 )
0.00182 I
C.C0301 )
146761
< 1526
( 1350
EV
HO 1
en 2
27«Y1«6
20SE1961
19AP1967
C.CC273 |
C.01138 1
0.00220 I
Synedra rwnpens var. frag-ilc&ioides Grun.
Synedra rumpens var. frag-ilarioides Grunow in: Van Heurck, Syn. Diat,
Belgique, pi. 40, fig. 12. 1881.
Frustules more strongly silicified than in the nominate variety. Striae
10-12 in lOp, visibly cross-lineate. Central area appears thickened and
often contains irregular markings appearing as partially developed striae.
In some specimens the central area is somewhat expanded. Shape, size range
and general morphology of the frustule essentially similar to the nominate
variety.
682 SIROKPVR TOT NO OF STATIONS B
( 1235 C^T 16JN1964 0.00565 } (~1240D~t 10JN1964 0.00767~) ( 1243 1~6 13JN1SA4 O.C0209 F
I 1338 r. 3 28MR19&7 0.00132 » ( 1341 A 3 19AP1967 0.0010S I 1 1343 A 6 19AP1967 C.00069 )
( 134< C 7 21AP1967 0.00134 1 ( 1408 A 3 23HY1567 C.00447 ) I
Synedra martpens var. meneghiniana Grun.
Synedra rumpens var. ? meneghiniana Grunow -in: Van Heurck, Syn. Diat.
Belgique, pi. 40, fig. 13. 1881.
Valves linear with rostrate ends. Striae 13-15 in lOy, without visible
substructure. Other morphologic features of the frustule essentially similar
to the nominate variety.
These entities are all found in periphyton communities in a variety of
habitats. Occasional specimens are noted in offshore plankton collections
from Lake Michigan.
681 SYRUHPVM TOT NO CF STATIONS
19AP1967 0.00217
Synedra ulna (Nitz.) Ehr.
Baoillaria ulna Nitzsch, Neue Schrift. Naturf. Ges. Halle, 3(1):99,
pi. 5. 1817.
Synedra ulna (Nitz.) Ehrenberg, Ber. Akad. Wiss. Berlin 1836:53. 1836.
Cells in girdle view very elongate-rectangular, usually slightly ex-
panded at the ends. Valves linear to linear-lanceolate with rostrate ends.
Specimens from Lake Michigan 75-220u long, 5-8y broad. Axial area narrow,
linear. Central area usually a nyaline fascia reaching both margins of the
valve, in some specimens reduced or entirely lacking. Striae parallel
throughout, finely but distinctly lineate-punctate, 8-12 in lOy. A distinct
"jelly pore" is present at one end of each valve.
This species finds its primary habitat in the periphyton but is often
found in plankton collections, often in considerable abundance. Numerous
varieties have been described. The majority of these are also usually found
in periphyton communities but some are adapted to planktonic existence.
194
-------
683 SYULNA TOT HC OF STATIONS127
i4*q?i
(46914
(46920
I4AQ07
(46745
(46752
(46768
1225
1240
1258
1267
1284
1341
1371
1416
1452
1578
1388
1392
1397
1561
1570
1573
1547
1572
1529
1549
1426
1417
1425
140?
1354
1404
1423
CH
CH
CH
r.H
EV
EV
EV
C 6
E 3
D 6
f 1
D 6
E 6
A 3
C 3
E 5
E 2
GS 2
GS12
GS16
GS21
GS 9
GS1B
GS21
MS 1
BH 1
KM 1
MO 1
fS 2
HD 2
RA 2
TR ?
GH 2
MO 2
WA 2
?3Mnj<)45
15 API 946
200E1946
Jl 1C4T
5JN1937
3Jii<;n
25JL1937
15SE19*7
130C1937
16MR19TH
Z7AP1938
15MY1964
16MY1964
10JN19A4
11JN1964
6JL19A;,
18AU1964
17SE1964
110C1964
19AP1967
4MY1967
28*Y1967
14JL1967
9CY1967
12MY1967
12HY1967
13MY1967
40C1967
50C1967
60C1967
20C1967
18SE1967
2CSE1967
40C1967
29MY1S67
22MY1967
25MY1967
6I»Y1967
25AP1967
10NY1967
25MY1967
-JML1048
_Lt.onn4o
0.64903
_JUi4180
0.06740
__0_.04354
0.02135
0.01470
0.00336
0.0039?
0.00734
O.OC153
0.00346
0.00472
0.00432
0.00318
0.00494
0.00868
0.00231
0.00656
0.00635
0.00421
0.03017
0.02157
0.00065
0.00587
0.00992
0.00112
0.00798
0.04559
0.01199
0.06852
0.45144
0.16B24
0.01768
0.15703
0.19677
0.29217
O.OC428
1 3541
(46SC6
46771
46770
46747
467AO
46767
46762
46761
1226
1232
1243
1246
1259
1270
1285
1337
1342
1373
1431
1453
13 66
1389
1394
1555
1567
1571
1575
1520
1526
1531
1550
1351
1418
1299
1400
1429
L 1405
CH '
— CH
CH
CH
EV
EV
EV
EV
EV
E 5
E 6
F 3
F 2
F 1
F 1
C 3
A 4
C 7
A 3
E 3
GS10
GS13
GS18
GS 2
GS15
GS15
GS28
HO 1
MC 1
GH 1
MR 1
MI 2
SH 2
Ph 2
SB 2
UL 2
ES 2
iFEieai
12JA1946
10MY1946
HY1947
11JN1937
IAU1937
22SE1937
270C193?
27MY193B
16MY1964
13JN1964
11JN1964
6JL1964
10AU1964
15SE1964
2MR1S67
19AP1967
5MY1967
12 JN1967
15JL1967
12MY1967
12HY1967
13MY1967
30C1967
5GC1967
6QC1967
60C1967
18SE1967
20SE1967
25SE1967
5CC1967
21AP1967
22PY1967
5HY1967
6HY1967
29MY1967
12HY1967
0.12716 )
0.00083 1
0.00282 )
0.00199 )
0.03566 ) (
0.13862 )
0.01160 )
0.01090 !
0.00174 I
0.00209 )
0.00598 J
0.00272 )
0.00582 I
0.00147 !
G. 00361 }
0.00285 )
0.00257 J
0.00253 )
0.00287 I
0.00774 )
0.00860 )
C. 00353 )
0.00318 !
C. 00234 )
0.01032 )
0.01414 )
0.00569 )
0.20287 )
C. 56994 )
0.05586 1
0.01555 I
O.C1360 1
1.90612 I
C. 07432 )
0.03870 )
46910
46915
46923
46919
46743
46763
46749
46766
1236
1244
1254
1272
1298
1338
1347
1413
1449
1537
1387
1390
1396
1559
1569
1572
1544
1521
1527
1545
1428
1427
1350
1401
1353
1403
1406
CH
CH
CH
CH
EV
EV
EV
EV
C" 1
f l
0 2
C' 1
E 1
C 3
E 2
C 7
C 3
E 3
GS11
CS14
GS20
GS 7
CS17
C-S20
HI I
SH 1
TR 1
•»L 1
PU 2
LU 2
BH 2
CO 2
FR 2
CA 2
GB 2
OC1945
20FE1946
22N01946
5JN1947
20JN1937
23AU1937
12HR1938
14DE1938
8JN1964
11JM964
15JL1964
6JL1S64
10SE1964
120C1964
28MR1967
23AP1967
25HY1967
16J11961
24SE1967
12KY1967
12MY1967
13MY1967
40C1967
50C1961
6CC1967
20C1961
18SE1961
20SE1967
20C1967
29MY1967
i9HY1967
19AP1967
6HY1967
23AP1967
10MY1967
13MY1967
C. 00109
O.OC569 I
C.C1530 :
C. 05766 )
0.43676
C.C567G
0.04058
C. 01214
C. 03169
C. 00175
C.OC329
0.00192
0.00764
C. 00821
C. 00269
C.OC132
C.OC325
C. 00316
C.CC764
C.OC431
C. 02772
C. 01174
C.OC222
C.OC350
C.OC446
C. 00270
0.00477
C.CC577
0.00629
O.OC676
0.09039
C.C9685
C. 35867
0.01764
C. 01055
O.C1308 }
C. 00539 )
Synedra ulna var. aequali-s (Kutz.) Hust.
FTUstul-ia aequal-is Ktltzing, Syn. Diat., p. 18, fig. 30. 1834.
Synedra ulna var. aequalis (Klltz.) Hustedt in: Rabenhorst, Kryptog.-Fl.
Deutschland, 7(2)2:199, fig. 691A, d. 1932.
Valves linear without special morphological demarcation of the ends.
Other characteristics essentially similar to the nominate variety.
684 SYULNAVA TCT NC CF STATIONS
I 3540 CH
( 1522 BH t
11MY1879
1SSE1967
0.00466 )
0.00182 I
(46743
I 1531
EV
GH 1
20JN1937
25SE1967
0.01285 )
0.00845 >
(46747
( 1350
EV
BH 2
1AU1931
19AP1967
C.OC743 )
C.C1982 )
Synedra ulna var. cmphirhynehus (Ehr.) Grun.
Synedra amp'hir'hynchus Ehrenberg, Phys. Abh. Akad. Wiss. Berlin, 1841:425,
pi. 3(1), fig. 25. 1843.
Synedra ulna var. amp'hiY'hynehus (Ehr.) Grunow, Verh. Zool.-Bot. Ges. Wien,
12:397. 1862.
Valves lanceolate with very narrow and much produced rostrate to capitate
ends. Other morphologic features of the frustule and ornamentation of the
valve essentially similar to the nominate variety. Specimens so far observed
from Lake Michigan are in the lower size range (75-190p long).
This entity is rare in our collections and the specimens observed are
probably derived from periphyton communities.
688 STULNAVM TOT NO OF STATIONS
C 3540
1 1404
CH
MO 2
11MY1879
10MY1967
0.00932 1
0.00421 )
0.01270 I
( 3541
I 1380
(
CH
GS 4
1FE1881
9MY1967
C.0293S )
0.00168 )
( 3507
1 1393
CH
6S17
19FE1881
13MY1967
C. 01132 )
0.00274 )
195
-------
Synedra ulna var. eha.sea.na Thomas
Synedra ulna var. ehaseana Thomas in; Walker and Chase, New and rare dia-
Ser. 1, p. 4, pi. 2, fig. 3.
toms,
1886.
Valves very elongate, narrowly linear-lanceolate, with slightly expanded,
subcapitate ends which are cuneately rounded at the tip. Central area usually
completely lacking, sometimes marked by a few less-developed striae in the
mid-portion of the valve. Specimens from Lake Michigan 380-600+y long, only
3-5p broad. Striae coarse, 8-11 in lOy.
This entity is euplanktonic and is abundant in many collections from
Lake Michigan. It may be viewed as the extreme adaptation to planktonic
existence in this group. In some respects its morphology is distinct from
the S. ulna and some authors (Boyer 1927) consider it to be a separate species.
f,«S SYUINAUC TCT NC CF STATIONS 317
!AD<)73 CH IB76 0.25980
1 3507 CH 19FE1B81 2.51302
(46909 CH DE1945 0.93656
(46914 CH 19AP1946 0.34703
146920 CH 20DE1946 0.32042
(46912 CH AP1947 1.06935
146919 CH 5JN1947 0.69043
(46922 CH 21AU1947 0.34652
146743 EV . 20JM937 2.63766
(46764 EV 17JL1937 1.65995
146763 EV 73AU1937 0.68994
146752 EV 15SE1937 1.21898
(46744 EV 60C1937 0.22435
(46749 EV 12MR193S 0.87339
(46751 EV 30NR1938 2.30013
(46759 EV 19MY1938 0.24983
1223 8 3 1BMY1964 1.42199
1226 C 7 16HY1964 0.89041
1229 0 5 14MV1964 4.73663
1232 E 5 16MY1964 2.75836
1235 C 7 16JN1964 1.84709
1237 C' 2 8JN1964 3.06780
1240 D 6 10JN1964 2.00334
1243 E 6 13JN1964 3.89627
1246 f 3 11JN1964 1.00400
1440 B 6 HJL1964 3.61131
1250 C 6 10JL1964 5.36896
1253 C' 2 16JL1964 5.32682
1256 E 2 14JL1964 3.C776C
1259 F 2 6JL1964 1.73525
1262 8 3 17AU1964 0.29399
1263 C 7 15AU1964 0.56045
1266 D 3 184U1964 7.69608
1269 E 3 15AU1964 5.37192
1271 C 7 22SE1964 0.52382
1274 D 1 17SE1S64 1.09792
1277 D 4 18SE1964 3.03631
1280 E 2 16SE1964 10.17088
1283 E 5 16SE1964 10.87409
1286 F 2 15SE1964 6.12960
1445 8 6 14GC1964 0.68493
1291 C' 2 160C1S64 1.60951
1294 D 3 15QC1964 2.76890
1297 D 6 140C1964 3.01969
1300 E 3 13(1C1964 9.37176
1303 E 6 13QC1964 2.89936
1306 F 3 110C1964 2.84384
1309 C' 1 10N01964 0.02733
131? D 2 8ND1964 0.43458
1315 D 5 9N01964 1.16469
1319 E 2 7N01964 1.77691
1321 E 5 7N01964 2.10049
HJ4 F ? ftMni964 1.08541
1337 C 3 2MR1967 2.53678
1340 C 7 28MR1967 1.01804
1343 A 6 19AP1967 0.17785
H4A C 7 21AP1967 2.11769
1368 A 3 4MY1967 2.63902
1371 C 3 4MY1967 2.15615
1374 E 2 7MY1967 4.04662
1408 A 3 23MY1967 1.56506
1411 C 3 31MY1967 6.12973
1414 E 2 28MY1967 5.32662
1431 A 3 12JM967 1.80240
1434 C 5 17JN1967 1.95598
1437 E 3 15JN1967 5.27548
( 1447 A 4 11JL1967 3.70977
( 1450 C 5 16JL1S67 5.59840
1 1453 E 3 15JL1967 4.60C26
I 1505 A 4 28AU1967 0.07730
( 3540 CH 11HY1879 2.02208
46910 CH OC1945 C. 78101
(46S17 CH 12JA1946 0.99114
146924 CH 10MY1946 0.41269
46S05 CH JA1947 0.51845
I46S16 CH 4MY1947 1.14680
(46SC7 CH JL19-47 1.60262
(46758 EV 5JN1937 2.19670
(46745 EV 3JL1937 4.30512
(46757 EV 25JU937 2.02205
I4A765 EV 30AU1937 0.59J19
(46760 EV 22SE1937 0.6056*
(46748 EV 13QC1937 0.72588
(46768 EV 16HR1938 1.17595
(46772 EV 18AP1938 0.15614
(46761 EV 27HY1938 C. 86667
1224 f- 4 18MY1964 2.19586
1227 C1 2 13HY1964 1.84231
X230 E 2 16MY1964 1.45207
1233 B 3 5JN2964 2.33383
1439 B 6 5JN1964 1.77023
1238 D 3 11JN1964 2.70800
1241 E 2 13JN1964 1.51699
1244 F 1 11JN1964 1.33110
1247 B 3 14JL1964 1.39156
1441 B 6 24JL1964 6.26886
1251 C 7 16JL1964 1.52095
1254 D 2 15JL1964 4.11032
1257 E 3 I4JL1964 4.01962
1260 F 3 6JL1964 1.87176
1442 B 6 2AU1964 6.68714
1264 C' 1 IOAU1964 C.45181
1267 D 6 18AU1964 0.10808
1270 F 1 10AU1964 1.04833
1272 C1 1 10SE1964 2.29857
1275 D 2 17SE1964 1.06445
1278 D 6 18SE1964 2.86714
1281 E 3 16SE1964 11.16823
1284 E 6 17SE1564 0.66724
1287 F 3 15SE1964 3.97318
1289 C 7 140C1964 3.69377
1292 D 1 150C1964 0.14162
1295 0 4 150C1964 1.39137
1298 E 1 12CC1964 0.65974
1301 E 4 130C1964 5.97898
1304 F 1 110C1964 1.84234
1307 B 6 N01964 0.50512
1310 C* 2 10MJ1964 0.34240
1313 D 3 9N01964 1.35135
1316 0 6 9N01964 3.34693
1319 E 3 7N01964 2.68636
1322 E 6 7N01964 2.79935
1325 F 3 6N01964 1.49878
1338 C 3 2BHR1967 2.28222
1341 A 3 19AP1967 1.56862
1344 C 3 25AP1967 2.62387
1347 E 2 23AP1967 1.97362
1369 A 4 4KY1967 2.60912
1372 C 5 5HY1967 4.46872
1375 E 3 7HY1967 4.04245
1409 A 4 23MY1967 6.24868
1412 C 5 31MY1967 4.71420
1415 E 3 28HY1967 4.19571
1432 A 4 13JN1967 4.64902
1435 C 7 13JN1967 2.35532
1438 E 5 14JN1967 2.03341
1448 A 6 10JL1967 1.81786
1451 C 7 16JL1967 1.37790
1454 E 5 15JL1967 1.12022
15C6 A 6 29AU1967 0.01046
( 3541 CH 1FE1881 6.92106 )
(46921 CH 23NO1945 1.72348 )
(46915 CH 20FE1946 1.47954 1
(46923 CH 22N01946 1.27858 )
(46909 CH «R1S47 1.77588 1
(469C6 CH HY1947 C. 73338 )
(46913 CH 6AU1947 1.63163 I
(46771 EV 11JM937 3.C6215 )
(46770 EV 9J11937 1.44322 )
(46747 EV 1AU1937 2.S7936 )
(46769 EV 7SE1937 1.43291 1
(46750 EV 24SE1337 C. 72583 1
(46767 EV 270C1937 C. 43325 )
(46762 EV 18HR1936 3.46273 1
(46756 EV 27AP1S38 C. 51715 1
146766 EV 14DE1938 0.47529 I
1225 C 6 15PY1964 3.56723 )
1228 0 2 14NY1964 2.56861 )
1231 E 3 16HY1964 2.16711 )
1234 B 3 18JN1964 0.7G722 )
1236 C* 1 8JM964 1.51229 )
1239 D 4 1UN1964 1.19060 )
1242 E 3 13JM964 3.00632 1
1245 F 2 11JN1964 1.03727 I
1248 B 3 24JL1964 3.C3460 I
1249 C 3 8JL1964 1.90114 )
1252 C' 1 16JL1964 1.29986 )
1255 0 5 15JL1964 6.46784 I
1258 F 1 6JL1964 2.20403 )
1261 B 3 2AU1964 C. 37287 )
1443 B 6 16AU1964 2.76756 )
1265 C' 2 10AU1964 4.69452 )
1268 E 2 15AU1964 4.59569 )
1444 B 6 19SE1964 7.63891 >
1273 C* 2 10SE1964 3.76364 I
1276 0 3 18SE1964 13.C3C84 )
1279 E 1 16SE1964 2.19692 !
1282 E 4 16SE1964 6.26593 )
1285 F 1 15SE1964 6.25473 )
1288 B 3 15GC1964 C. 06313 )
1290 C' 1 16CC1964 0.13644 )
1253 D 2 150C1964 1.65079 1
1296 D 5 140C1964 0.68652 )
1299 E 2 12DC1964 4.53032 )
1302 E 5 130C1964 4.72103 t
1305 F 2 UOC1964 1.2C760 1
1308 C 7 6NC1964 0.38626 )
1311 D 1 8N01964 C. 24251 I
1314 0 4 9N01964 1.48709 )
1317 E 1 6NC1964 C. 24891 )
1320 £ 4 7NQ1964 3.28025 )
1323 F 1 6MD1964 C. 73171 I
1336 C 3 27JA1967 C. 37163 )
1339 C 5 28MR1967 2.91202 )
1342 A 4 19AP1967 2.6C950 )
1345 C 5 25AP1967 1.45411 I
1348 E 5 23AP1967 0.89650 1
1370 A 6 3MV1967 0.40281 )
1373 C 7 5MV1967 2.66416 1
1376 E 5 6MY1967 1.96762 1
1410 A 6 24MV1967 1.44339 1
1413 C 7 25HY1967 2.50813 )
1416 E 5 28KY1967 2.96967 )
1433 C 3 I7JN1967 3.91422 1
1436 E 2 15JN1967 6.41916 )
1*4* * 3 11JL1967 1.36980 1
1449 C 3 16JL1967 6.06061 1
1*52 E 2 14JL1967 3.87448 t
1504 A 3 28MJ1967 0.6S127 >
1508 C 3 2SE1961 0.69938 1
196
-------
' 1> J
HOI GSll 12MY1967 2.21800
msa G_si4 Lzaii967 0.19965
1JV3 6517 13MY1967 0.24107
iaS6_ GS20 11MY1967 O.OC592
1554 65 1 JOC1967 3.32313
1557 GS 4 3nr.l967 0.5792J
1560 b» a 40C1967 0.33061
1563 GSll 5nr.l
-------
Valves relatively broadly lanceolate, constricted in the center, with
narrowly produced, rostrate ends. Specimens from Lake Michigan 75-180y
long, 6-8y broad. Central area more or less elliptical, either reaching to
the margins of the valve or bordered by shortened striae. Striae somewhat
finer than in the nominate variety, 10-13 in lOy.
This entity is abundant and widely distributed in periphyton collections,
Occasional specimens are noted in plankton collections from Lake Michigan.
Its distinctive morphology may warrant its treatment as a separate species.
691 SYUINAVO TCT NC OF STATIONS
(46923
I. 1522
CH
BH 1
22N01946
18SE1967
0.00437 !
0.00182 i
(46758
I 1531
EV
GH
5JN1937
25SE1967
0.00357 )
0.00845 I
I 1388
< 1550
GSU
ER 1
12HV1967
50C1967
C.00603 )
C.04956 I
Synedra ulna var. daniea (Kutz.) V. H.
Synedra dan-lea Kutzing, Bacill., p. 66, pi. 14, fig. 13. 1844.
Synedra ulna var. daniea (Kutz.) Van Heurck, Syn. Diat. Belgique, p. 151.
1885.
Valves elongate, linear-lanceolate with protracted, subcapitate ends.
Specimens from Lake Michigan 180-350p long, 5-6p broad. Striae coarse, 9-11
in lOp. Central area usually present, rather small and rectangular in out-
line, sometimes containing faint ornamentation with the appearance of par-
tially developed striae.
This entity is common in our collections from Lake Michigan, especially
those taken from areas that have undergone enrichment. In some respects, it
resembles S. ulna var. ohaseana but may be distinguished from that taxon by
its slightly broader valves, the presence of a central area and the shape of
the ends of the valves which are smoothly rounded rather than more or less
lanceolate as in S. ulna var. ahaseana. In several of our collections from
Lake Michigan populations of S. ulna var. danioa occur together with unusual
specimens with elongate expanded ends similar to the specimens Gemeinhardt
(1926) cites as "regeneration forms."
686 SYULNAVD TCT NC CF STMECNS 306
(60973 CH 1876 0.04724
I 3507 CH 19FE1681 0.01132
(46908 CH 061945 0.05035
(46914 CH 19AP1946 0.45167
(46920 CH 20DE1946 0.06655
I4&912 CM AP1947 0.13798
(46919 CH 5JN1947 0.02883
146972 CH 21AU1947 0.03829
(46743 EV 20JN1937 0.26548
(46764 EV 17JL1937 0.10475
(46763 EV 23AU1937 0.06088
(46752 EV 15SE1937 0.04354
146744 EV 60C1937 0.54623
(46749 EV 12MR1S38 0.48550
(46751 EV 30MRI938 0.22331
<«A75« EV 19WH938 0. 06752
1 1223 B 3 18MY1964 O.C3750
1 \11b C 7 16MV1964 0.33486
< 1229 D 5 I4MY1964 0.36159
1232 E 5 16HY1964 0.3C436
1235 C 7 16JN1964 0.04236
1237 C1 2 8JN1964 0.164SS
1240 D 6 10JN1964 0.13499
1243 E 6 I3JN1964 0.73081
1246 F 3 11JN1964 0.37053
1440 B 6 11JL1964 0.09950
1250 C 6 10JL1964 C.C7400
1253 C' 2 16JL1964 C. 13465
1256 E 2 14JL1964 0.25647
1259 f 2 6JL1964 0.25719
1262 B 3 17AU1964 0.00630
1 Ufc4 C- 1 10AU1964 0.03282
i
( 3540 CH 11KY1679 0.07455
(46910 CH OC1945 0.07100
(46?17 CH 12JA1946 0.09896
(46924 CH 10MY1946 0.15097
146905 CH JA1947 0.03922
(46916 CH 4KY1947 0.17643
(46S07 CH JL1947 0.54489
(46758 EV 5JN1937 0.08559
(46745 EV 3JU937 0.35528
(46757 EV 25JL1937 0.13480
(46765 EV 30AU1937 0.02789
(16760 EV 22SE1937 0.03447
(46748 EV 130C1937 0.44833
(46768 EV 16MR1938 0.16169
(46772 EV 1SAP1938 0.06388
(46761 EV 27»yj93S 0.50692
1224 B 4 1BKV1964 0.05294
1227 C1 2 13HY1964 0.02632
1230 E 2 16HY1964 0.21633
1233 B 3 5JN2964 0.05239
1439 B 6 5JN1964 0.04995
1238 D 3 11JM964 0.16600
1241 E 2 13JM964 0.12568
1244 F 1 11JN1964 0.06908
1247 B 3 14JL1964 C. 07257
1441 B 6 24JL1964 C. 11674
1251 C 7 16JU964 0.03766
1254 0 2 15JL1964 0.18004
1257 E 3 14JL1964 C. 22491
1260 F 3 6JL1964 0.26739
1442 B 6 2AU1964 0.05800
1265 C' 2 10AU1964 0.07824
1 3541 CH 1FE1881 C. 34193
46921 CH 23N01945 0.10477
(46915 CH 20FE1546 C. 33574
46923 CH 22N01946 0.03497
(46909 CH NR1347 C. 11839
(46906 CH HY1947 0.10354
(46913 CH 6AU1947 C. 03138
46771 EV UJN1937 0.14740
(46770 EV 9JL1937 0.01193
146747 EV 1AU1937 C. 33171
(46769 EV 7SE1937 0.06684
(46750 EV 24SE1931 0.22623
(46767 EV 270C1937 0.01547
(46762 EV 18MR1938 0.06617
(46756 EV 27AP1938 0.03694
(46766 EV J40E1538 O.C4753
1225 C 6 15MY1964 0.42336
1228 D 2 14NY1964 0.10315
1231 E 3 16MY1964 0.33265
1234 B3 18JN1964 0.11527
1236 C* 1 8JN1964 C. 11027
1239 0 4 11JN1964 O.CC150
1242 E 3 13JM964 0.19033
1245 r 2 11JN1964 C.3C427
1248 B 3 24 JL 1564 C. 16355
1249 C 3 6JI.1964 0.046 17 _1
1252 Cf 1 16JL1964 C.CS232
1255 C S 15JL1964 0.11550
1258 F 1 6JL1964 C. 25486
1261 B 3 2AU1964 0.00981
1263 C 7 15AU1964 O.C1201
1266 D 3 18AU1964 G. 22450 1
198
-------
1267 0 6 18AU1S64 0.01513
1270 F 1 ln4i)]Sbl964 0.43096
-}**? -f-6 L40tU6*_ (Ufl22fla_
»tT386
1305 F 2 110C1964 C. 12766
13C8 C 7 6KD1964 0.02129
1313 D 3 9N01964 C. 02510
1316 D 6 9N01964 0.18888
1319 E 3 7N01964 0.02880
1325 F 3 6N01964 0.12595
1338 C 3 28MR1967 0.33850
1341 A 3 19AP1967 0.60749
1344 C 3 254P1967 0.63694
1347 E 2 23AP1967 0.34144
1369 A 4 4MY1967 1.82638
1372 C 5 5MY1967 0.99305
1375 E 3 7MY1967 0.92&39
1410 A 6 24MY1967 3.157*2
1*13 C 7 25fY1967 1.21616
1416 E 5 28MYl9f1 C. 19900
1433 C 3 17JN1967 3.31998
1*36 E 2 15JN1967 2.36648
1446 A 3 11JL1967 0.57238
1449 C 3 16JL1967 1.60495
1452 E 2 14JL1967 0.49815
1504 A 3 28AU1967 0.31354
1508 C 3 2SE1967 0.21181
1511 E 2 ISE1967 0.53719
1532 A 3 18SE1967 0.02957
1535 C 7 20SE1967 0.00322
1538 E 5 23SE1967 0.35353
1543 E 5 IOOC1967 0.03591
1379 GS 3 9HYIS67 C. 5 1993
1382 GS 6 IOMY1967 0.53568
1385 GS 9 10MY1967 1.31855
1388 GS12 12HY1967 2.61146
1391 GS15 12HY1967 2.46133
1394 GS18 13MY1967 0.52293
1«7 CSJ1 13HY1967 D. 00523
1555 GS 2 30C1967 0.12712
1558 GS 5 40C1967 0.06739
1561 GS 9 40C1967 0.1*087
15*4 GS12 50C1967 0.00988
1567 GS1S 50C1967 0.81608
1570 GS18 5QC1967 0.21817
1574 GS22 60C1967 0.37105
1547 MS 1 20C1967 0.02395
1521 SH 1 18SE1967 0.02308
1527 TR 1 20SE1967 0.23899
1531 GH 1 25SE1967 0.04227
1551 ES 1 50C1967 0.03994
1553 SG 1 60C1967 0.02938
1351 HI 2 21AP1967 0.22964
1*18 SH 2 22HY1967 1.83515
1401 HC 2 6MV1967 0.47037
1352 KH 2 21AP1967 0.32640
1429 WL 2 29MY1967 0.19110
1405 ES 2 12MY1967 0.16125
14C6 66 2 13MY1967 0.00270
1421 CH 2 23MY1967 2.58501
14?4 KN 2 25MY1967 0.75939
1269 E ? 15AU196* C. 35356
1275 D 2 17SE1964 C.C2580
1281 E 3 16SE1964 C. 31786
1287 F 3 15SE1964 C.1C508
1294 D 3 150C1964 C.C4615
1300 E 3 130C1964 C. 45463
1306 F 3 110C1964 C. 10810
1310 C1 2 10N01964 C.CC227
1314 0 4 9N01964 0.04306
1317 E 1 6N01964 C.OC191
1320 E 4 7M01964 O.C8687
1336 C 3 27JA1967 C.C2118
1339 C 5 26HR1967 C. 72956
13*2 A 4 19AP1967 C. 25265
13*5 C 5 25AP1967 C. 45611
1348 E 5 23AP1967 C. 31254
1370 A 6 3MY1967 1.39487
1373 C 7 5KY1967 C. 59901
1*08 A 3 23FY1967 2.67406
1411 C 3 31HY1967 2.15402
1414 E 2 28MY1961 C. 94039
1431 A 3 12JN1967 1.56037
1434 C 5 17JN1967 1.67*84
1437 E 3 15JN1967 C. 47 103
14*7 A 4 11JL1967 5.99270
1450 C 5 16JL1967 1.42055
1453 E 3 15JL1967 C. 64707
1505 A 4 28AU1967 0.01031
1509 C 5 2SE1967 C. 54507
1512 E 3 1SE1967 1.00518
1533 A 4 19SE1967 C. 01393
1536 E 2 24SE1967 C. 38174
15*0 C 5 40C1967 0.00496
1377 GS I 9MY1967 2.9527C
1380 GS 4 9MY1967 C. 94165
1383 GS 7 10HY1967 C. 41*35
1386 GS10 12MY1967 C. 29302
1389 CS13 12PY1967 C. 99270
1392 ES16 12HY1567 1.C7868
1395 £S19 13HY1967 C. 20081
1398 ES22 14HY1967 1.41482
1556 GS 3 30C1961 C. 05386
1559 GS 7 4CC1967 C. 54207
1562 GS10 50C1967 C. 63157
1565 6513 50C1967 C. 02028
1568 GS16 50C1967 C. 28860
1571 GS19 60C1967 C. 01815
1575 GS2B 60C1967 0.07354
1546 LU 1 20C1967 C. 01000
1525 PW 1 20SE1967 0.02785
1528 SB 1 20SE1967 0.11551
1545 hL 1 20C1967 C. 02027
1552 SH 1 60C1967 0.07923
1428 KU 2 29HV1967 0.12655
1*27 LU 2 29HY1967 1.41646
1350 BH 2 19AP1967 C. 23568
1402 TR 2 6MY196? 0.2*908
1353 FR 2 23AP1967 0.36920
1403 CA Z 10HY1967 C. 68001
1407 SH 2 14MV1967 0.25676
1419 BU 2 23MY1967 3.51520
1*22 GA 2 23MY1967 1.96189
1430 HC 2 12JN1S67 0.93758
Synedpa ulna var. longissima (Wra. Smith) Brun
Synedra longissima Wm. Smith, Syn. British Diat., vol. 1, p. 72, pi. 12,
fig. 95. 1853.
Synedra ulna var. longissima (Wm. Smith) Brun, Diat. Alpes Jura, p. 126,
pi. 4, fig. 21. 1880.
Valves linear to linear-lanceolate with expanded, bluntly rounded ends.
Prustules are often extremely elongate and many are more or less curved.
Other features as in the nominate variety.
68S SYU1.NAVB TOT HC Cf STATICNS
I 1568 GS16
50C1967 0.00144 ) I 1403 CA 2
0.09154 ) ( 1404 HO 2
10MY1967 C.22866 )
690 SYULNAVN TCT KC OF STATICNS
18SE1967 0.48686 ) I 1531 GH 1
25SE1967 8.25021 I ( 1350
19AP1967 O.C2423 )
199
-------
Synedra ulna var. oxyrhynohus (Kutz.) V. H.
Synedra oxyrhynohus Kutzing, Bacill., p. 66, pi. 14, fig. 8. 1844.
Synedra. ulna var. oxyrhynchus (KUtz.) Van Heurck, Syn. Diat. Belgique,
p. 151. 1885.
Valves linear with narrowly rostrate apices. The maximum length of this
entity is less than 150y and the striae tend to be finer than in the nominate
variety, usually about 14-15 in
693 SYULNAVX TCT NO OF STATIONS 11
146316
(46907
( 1257
CH
CH
E 3
MS 2
4MY1S47
JL1947
14JLI964
29HY1967
0.00034 )
0*00049 )
0.00239 1
0.02100 )
(46SC6
(46922
( 1394
( 1427
CH
CH
ssie
HY1947
21AU1947
13HY1967
29HY1967
C. 00066 )
C. 00048 )
0.00344 )
0.01211 )
(46919
146743
1 1395
(
CH
EV
6519
5JN1947
20JN1937
13HY1967
C. 00303 I
c. 01285 i
0.00239 )
Synedra ulna var. spathulifera (Grun.) V. H.
Synedra spathulifera Grunow in: Van Heurck, Syn. Diat. Belgique, pi. 38,
fig. 4. 1881.
Synedra ulna var. spathulifera (Grun.) Van Heurck, Syn. Diat. Belgique,
p. 151. 1885.
Valves linear through most of their length, at the ends broadly expanded
to a width greater than the center of the valve, then abruptly narrowed to
produced, subcapitate ends. Other features of the morphology and ornamenta-
tion of the frustule are essentially similar to the nominate variety.
This entity is common in some periphyton collections from Lake Michigan.
It is rarely taken in plankton collections and the specimens observed in our
collections are undoubtedly derived from benthic habitats. As pointed out by
other authors (Boyer 1927; Hustedt 1932) this entity is not related to the
"regeneration forms" discussed above.
695 SYULNAVS TCT KC QF STAT1CHS
1467
I 1522 BH
I 1417 HO
2TCC1937 0.003B7 ) ( 125B
6J11964 0.00236 I
18SE1967
22HV1S67
0.00912 I
0.00374 )
( 1531
1 1350
GH 1
BH 2
25SE1967
19AP1967
C.C1469 )
Species inoertae sedis
Synedra sp. (aff. S. hyperborea var. rostellata')
*74 SyHVPFUB TflT Kf! flC
<4690B CH DE1945 0.01007
(46922 CH 21AU1947 0.00046
1441 8 6 24JL1964 O.OC22C
1259 F 2 6JL1964 0.00310
1291 C' 2 160C1564 0.00245
1303 E 6 130C1964 0.00560
1311 D 1 8N01964 0.00516
1320 E 4 7N01964 0.00620
1348 E 5 23AP1967 0.00137
1432 A 4 13JN1967 0.00255
13B1 GS 5 10MY1967 0.00954
I46S15 CH 20FE1946 0.00569
146749 EV 12HR1938 0.01214
( 1257 E 3 14JL1964 0.00239
( 1260 F 3 6JL1S64 0.00382
I 1299 E 2 120C1964 C. 00943
( 1305 F 2 110C1964 0.00345
( 1315 D 5 9N01964 0.01365
I 1321 E 5 7NQ1964 0.00638
( 1370 A 6 3MY1967 0.00460
I 1448 A 6 10JL1967 C.00354
( 1382 GS 6 10MY1967 0.00278
46916 CH 4MV1947 C. 00034 1
46761 EV 27MY1938 C. 00818
1258 F 1 6JL1964 O.OC708
1264 C* 1 10AU1964 0.00193
1300 E 3 13CC1964 C.OC3S8
1307 8 6 N01964 C.CC361
1319 E 3 7MC1964 0.00524
1347 E 2 23AP1967 C.CC650
1376 E 5 6MY1967 C.CC281 1
1539 C 3 40C1961 C. 01006 >
Synedra sp. #7.
704 SYSPECOC TCT NO OF STATIONS
(46919
CH
E 6
5JN1947
17SE1964
o.001:2 )
0.00318 )
0.00278 I
( 1236
I 1285
C1 1
F 1
8JN1964
15SE1964
C.01050 }
0.03494 I
< 1243
( 1287
E 6
f 3
13JN1964
15SE1964
C.OC209 )
0.00500 >
( 1382
10HY1967
200
-------
Synedra sp. #12.
JQ9__i3(S£fUlL_t£rj.C_CF__ST»TiO_NS_ __ I
I .1115. - Q__5_ ---- _$i!01964_ _OifiO*51_J
Synedra sp. #13.
Jlfl _ SVSPECOH TCT NO OF STATICMS _i
I 1258 - E_l --- 6JH964 O.OC473 1
a "capitate var. fossil-is" (not validly described)
-44! - S*£APJVF TCT NC HF -; T ar irjit
J— L4M - S&-Z _ 6MY1967
Genus Tabellaria Ehr.
Ehrenberg, Ber. Akad. Wiss. Berlin, 1840:217. 1840.
All members of the genus Tabellaria reported below occur in plankton
collections from Lake Michigan in abundance. The populations observed are
highly variable and specific determinations are often obtained with difficulty.
It appears probable that some of these variable populations may contain more
than one genetic entity, however we have found no way that they can be con-
sistently separated on the basis of morphologic characteristics visible with
the light microscope. Knudson (1952) has revised the genus, largely on the
basis of the type of colony formation. In our experience this is the least
stable of all morphologic characteristics. Any of the entities reported be-
low will, in some instances, adopt any or all of the colony forms reported
by Knudson.
Tabellapia fenestrata (Lyngb.) Kutz.
Diatoma fenestratum Lyngbye, Tent. Eydropht. Danicae, p. 180, pi. 61,
fig. E(3). 1819.
Tabellaria fenestrata (Lyngb.) Kutzing, Bacill., p. 127, pi. 18, fig. 2.
1844.
Cells in girdle view elongate-rectangular with rounded ends, united by
gelatinous pads at the corners into zig-zag or, more rarely, linear or stel-
late colonies. Usually four conspicuous septae, lying in the valvar plane,
are evident. Valves elongate, linear, slightly expanded at the middle and
at the ends. Expanded areas subequal, middle only slightly broader than
the ends. Valves of specimens from Lake Michigan 24-134y long, 4-8y broad at
the middle. Striae fine, 18-22 in IQy, perpendicular to the midline through-
out. Axial area narrow, linear, without any specially demarcated central
area. At the ends of the valves there are pore fields composed of very fine
and irregularly arranged puncta. A conspicuous slime pore is present just to
one side of the axial area near the center of the valve. In some populations
very fine marginal spines are present at the margins of the valve.
-711 TAFENEST TCT ME OF STATIONS 320
1 3507
1 46 9Q 8
U6914
(46920
(46912
CH
CH
CH
CH
1876
19FE1881
DE1945
19AP1946
20DE1946
AP1947
5.IN1947
9.84B8<> 1
69.66266 )
37.96576 )
15.09508 )
10.85439 )
11.95815 )
3.79660 )
( 3540
146910
nem
146924
(469C5
(46916
146907
CK
CH
CH
CH
CH
CH
CH
11MY1879
GC1945
12JA1946
10MV1946
JA1947
4MY1947
JL1947
52.13623 )
12.17613 )
34.79790 )
8.50570 )
29.91420 )
6.04276 )
23.87903 )
( 3541
(46921
(46915
(46923
(46909
(46906
(46913
CH
CH
CH
CH
CH
CH
CH
1FE1881
23N01945
20FE1946
22N01946
MR 1947
HV1947
6AU1947
53.07639 1
36.46599 )
30.14282
21.67785
42.02904
2.97666
10.53237
201
-------
1*6922 CH 21AU1947 33.39197
146743 EV 20JN1937 18.52385
146764 EV 17JL1937 18.72682
(46763 EV 23AU1937 26.13635
(46752 EV 15SE1937 19.5C369
(46744 EV ADr.1937 1?. 01717
(46749 EV 12MR1938 7.13675
(46751 EV 30MR1938 4.06431
146759 EV 19MY1938 4.15935
( 1223 B 3 18MY1964 6.54270
1 1226 C 7 16KY1964 31.96346
1 1229 D 5 J4MY1964 26.C5147
1 1232 E 5 16MY1964 21.12769
I 1235 C 7 16JN1964 41.51721
1 1237 C' 2 8JN1964 34.46764
J _L240 D 6 10JN1964 16.42863
( 1243 E 6 13JN1S64 17.97794
1 1246 F 3 11JN1964 44.34351
I 1440 B 6 11JL1964 19.60422
( 1250 C 6 10JL1964 14.10072
( 1253 C' 2 16JL1964 21.24794
( 1256 f 2 14JL19S4 13.5S273
1 1259 f 2 6JL1964 19.73846
1 1262 8 3 17AU1964 14.8467C
{ 1263 C 7 15AU1964 28.58286
C 1266 D 3 18AU1964 11.54062
( 1269 E 3 15AU1964 5.56378
1 1271 C 7 22SE1564 68.55127
( 1274 D 1 17SE1964 28.90254
1 1277 n 4 1HSF1964 49.44850
( 1280 E 2 16SE1964 11.91366
1 1283 f 5 I6.1EI964 18.45041
« 1286 F 2 155E1964 19.15498
1 1445 B 6 140C1964 46.57533
I 1291 C' 2 16CC1964 39.72408
( 1294 p 3 150C1964 41.07195
1 1297 0 6 140C1964 51.31183
1 1500 F ^ 13DC1964 23.80525
1 1303 E 6 13CC1964 25.85914
1 H«6 F 3 110C1964 9.89523
1 1309 C1 1 10N01964 15.64510
1 1312 n 2 8ND1964 25.42293
( 1315 R 5 9MG1964 48.40764
1 131B F 7 7ND15A4 26.50153
( 1321 E 5 7N01964 16.75923
I 1324 F 2 6NC1964 12.55445
< 1337 C 3 2MR1967 8.43634
I 1340 C 7 28HR1967 4.47938
( 1343 A 6 19AP1967 1.8480C
( 1346 C 7 21AP1967 8.13160
< 1368 A 3 4MY1567 17.81337
( 1371 C 3 4MY1967 14.8668C
( 1374 E 2 7MY1967 10.04184
( 1408 A 3 23MY1967 35.95695
I 1411 C 3 31MY1967 19.24260
I 1414 E 2 28MY1967 14.1C579
( 1431 A 3 12JN1967 34.42593
1 1434 C 5 17JN1967 7.74614
( 1437 E 3 15JN1967 4.33343
( 1447 ._A_..4_ 11JL1967 10.64278
1 1450 C 5 16JL1967 8.93078
t 1453 . E 3 15JLLS67 1.50393
( 1505 A 4 28AU1S67 31.36203
( 1509 C 5 2SE1967 10.24528
1 1512 E 3 1SE1967 4.35768
< 1533 . .A 4 .._ _ 19SE1967 . 32..49_466.
( 1536 E 2 24SE1S67 25.57669
1 1539 C 3 40C1967 28.52972
1 1543 E 5 10CC1567 4B. 77171
( 1379 GS 3 9MV1967 37.91161
( 1382 G.S 6 10MY1967 20.98309
[ 1385 GS 9 IOMY1967 34.94148
( 1388 GS12 12NY1967 24.91704
( 1391 GS15 12MY1967 26.48087
I 1394 GS18 13M.Y1967 13.72691
I 1397 GS21 13MY1567 C. 64097
I 1555 GS 2 30C1967 24.71751
( 1558 GS 5 .. 4CC1967 11.93119
( 1561 GS 9 4DC1967 29.17180
( 1564 -G512 5CC1S67 8.87155
< 1567 GS15 50C1967 22.67242
( 1570 . GSia._ ..... 5CC1967 8.23002
( 1573 GS21 60C1967 0.26206
( 1544 CU 1. ... ._2CC1967 ._ 0,15012..
1 1546 LU 1 2CC1967 1.60C56
( 1522 BH 1 18SE1967 0.00912
( 1526 HO 1 20SE1967 5.27963
( 1529. .. Kij.J. 2.0SE1967.... 6_..523_5.t
( 1545 «L 1 20C1967 2.91912
1 1551 iS I... 5GC1967 3.45075
< 1553 SG 1 60C1967 0.41863
( 1351 Ml 2 21AP1967 1.39022
( 1418 SH 2 22MY1967 35.83203
( 1399 Pw 2_ 5MY1967 8.70511
( 1400 SB 2 6MY1967 6.67143
1 1354 GH 2 25AP1967 0.66281
( 1404 PO 2 10CY1967 21.13820
( 1349 CI 2 19AP1967 2.64387
( 1421 CH 2 23MY1967 36.64122
1 1424 KN 2 25MY1967 17.05301 )
(46758 EV 5JN1937 11.08337
(46745 EV 3JL1937 28.67293
(46757 EV 25JL1937 32.62241
(46765 EV 30AU1937 44.66257
(46760 EV 22SE1937 18.47456
146748 EV 13CC1937 1.19556
(46768 EV 16HR1938 6.58533
(46772 EV 18AP1938 3.57700
(46761 EV 27MY1938 15.26218
1224 B 4 18MY1964 7.68552
1227 C' 2 13CY1964 40.76105
1230 E 2 16MY1964 24.23766
1233 B 3 5JM2964 25.67216
1439 B 6 5JN1964 14.68531
1238 0 3 11JN1964 '8.96000
1241 E 2 13JN1964 12.21279
1244 f I 11JN1964 39.52721
1247 B 3 14JL1964 34.95966
1441 B 6 24JL1964 12.79764
1251 C 7 16JL1964 40.55855
1254 D 2 15JL1964 8.84888
1257 E 3 14JL1964 3.01471
1260 F 3 6JL1964 25.40251
1442 8 6 2AU1964 20.30023
1264 C1 I 10AU1964 36.62727
1267 0 6 1BAU1964 43.57976
1270 F 1 10AU1964 17.91695
1272 C1 1 10SE1964 26.73209
1275 0 2 17SE1964 23.93393
1278 D 6 18SE1964 52.99973
1261 E 3 16SE1964 8.79017
1284 E t 17SE1964 17.57060
1287 F 3 15SE1964 19.61569
1289 C 7 140C1964 56.94560
1292 D 1 150C1964 37.04532
1295 0 4 15CC1964 40.78963
1298 E 1 120C1964 32.42136
1301 E 4 130C1964 17.92810
1304 F 1 110C1964 9.50805
1307 B t N01964 30.30740
1310 C' 2 10N01964 2C.COOOO
1313 D 3 9N01964 38.24324
1316 D 6 9N01964 24.06316
1319 E 3 7N01964 21.26044
1322 E t 7N01964 11.43067
L125 F 3 6NC1964 27.15433
1338 C 3 28HR1967 8.97816
1341 A 3 19AP1967 19.51552
1344 C 3 25AP1967 14.93920
1347 £ 2 23AP1S67 8.99114
1269 A 4 4HY1967 9.91464
1372 C 5 5PY1967 12.41311
1375 E 3 7MY1967 14.99074
1409 A 4 23^Y1967 25.20363
1412 C 5 31MY1967 10.31231
1415 t 3 2Bf«YlS67 11.01767
1432 A 4 13JM967 10.01328
1435 C 7 13JM967 11.49244
1436 f 5 14JN1S67 7.87945
1448 A 6 10JL1967 62.63483
1451 C 1 16JL1S67 26.59343
1454 E % 15JL1967 36.82736
1506 A t 29AU1967 61.51591
1510 C 7 29AIH967 48.46664
1513 E 5 31AU1967 13.47927
1534 A 6 19SE1967 31.92380
1537 E 3 24SE1S67 11.77435
1540 C 5 40C1967 39.95631
1377 GS 1 SMY1967 12.46784
1380 GS 4 9MY1967 39.31393
1383 GS 7 10MY1967 26.57185
1386 GS1C 12MY1967 22.52226
1389 GS13 12MY1967 12.81489
1392 GS16 12CY1967 15.10155
1395 GS19 13MY1967 2.87714
1398 GS22 14HY1967 37.82979
1556 GS 3 3CC1967 4C. 15225
1559 GS 7 40C1967 14.93320
1562 GS10 50C1967 23.31375
1565 GS13 5QC1967 3.90427
1568 GS16 50C1967 2.82824
1571 _GS_19 6CC1967 1.59811
1574 GS22 60C1967 24.96692
1547 MS 1 20C1967 5.23752
1520 HD I 18SE1967 15.61601
1523 RA 1 19SE1967 17.12177
1527 TR 1 20SE1967 1.91195
1530 FR 1 24SE1967 11.52115
1546 CA 1 30C1967 7.32731
1552 Sf 1 60C1967 0.66669
1428 MU i 29HY1967 1.01238
1427 LU 2 29MY1967 17.62711
135C 6H 2 19AP1967 0.35242
1401 MO i 6MY1967 5.26811
1352 KW 2 21AP1967 6.32194
1429 WL 2 29FY1967 5.26595
1405 ES 2 12HY1967 7.32714
1419 BU 2 23KY1967 33.96022
1422 GA 2 23HY1967 35.72267
1430 MC 2 12JM967 72.63754
(46771 EV 11JN1937 3.46156 1
(46770 EV 9JL1«« 39.40839 I
(46747 EV 1AU1937 16.912It
(46769 EV 7SF1937 21.88449
(46750 EV 24SE1937 16.73969
(46767 EV 270C1937 6.06553
(46762 EV 18WU938 8.02823
146756 EV 27AP1938 2.16263
— -
46766 EV 140E1938 JJ.3JJ9M
1225 C 6 15KY1964 22.77538
1228 D 2 14HY1964 27.79344
1231 E 3 16MY1964 6.C8874
1234 B 3 18JK1964 32.66982
1236 C1 1 8JN1964 26.71007
1239 D 4 11JN1964 22.82564
1242 E 3 13JN1964 2.51776
1245 F 2 11JM964 4S.SS575
1248 B 3 24JL1964 35.5876C
1249 C 3 8JL1964 32.12927
1252 C1 1 16J11964 38.8S634
1255 0 5 15JL1964 6.46784
1258 f 1 6JL1964 19.32651
1261 6 3 2AU1964 38.46455
1443 B 6 16AU1964 S. 94323
1265 C* 2 10AU1964 3C.2C142
1268 E 2 15AU1964 15.12747
1444 8 6 19SE1964 11.45836
1273 C1 2 10SE1964 21.45276
1276 0 3 18SE1964 23.46892
1279 E I 16SE1964 28.B6087
1282 E 4 16SE1964 27.14680
1285 F 1 15SE1964 11.41459
1288 B 3 15CC1964 11.73320
1290 C1 1 160C1964 27.85674
1293 0 2 15OC1964 47.87283
1296 D 5 14OC1964 56.73367
1299 E 2 12CC1964 31.C0847
1302 E 5 130C1964 11.62037
1305 F 2 110C1964 8.C9095
1308 C 7 6NO1964 50.67064
1311 D 1 GN01964 24.74C72
1314 0 4 9NO1964 32.15341
1317 E 1 6KC1964 24.66109
1320 E 4 7ND1964 17.95242
1323 F 1 6N01964 9.17073
1336 C 3 27JA1S67 78.56202
1339 C 5 2SMR1967 21.82452
1342 A 4 19AP1967 2C. 21185
1345 C 5 25AP1967 12.55287
1348 E 5 23AP1967 14.77-724
1370 A 6 3MY1967 14.82334
1373 C 7 5MY1967 9.1E47E
1376 E 5 6HY1967 34.63008
1410 A 6 24HY1967 29.99548
"1413 C 7 25MY1967 "'7.29696'
1416 E 5 28HY1967 21.12444
1433 C 3 17JM967 23.96330
1436 E 2 15JN1967 7.CS220
1446 A 3 11JL1S67 27.22469
1449 C 3 16JL1967 6.15232
1452 £ 2 14JL1567 16.24303
1504 A 3 28AU1967 46.48808
1508 C 3 2SE1967 42.24281
1511 E 2 1SE1967 12.67766
1532 A 3 18SE1967 .36.1C262
1535 C 7 20SE1967 63.99072
1538 E 5 23SE1967 37.89426
1541 E 2 110C1967 28.68393
1378 GS 2 9HY1967 25.14090
1381 GS 5 10MY1967 36.39746
1384 CS 8 10MY1967 It. 24567
1387 C-S11 12MY1967 26.06146
1390 GS14 12HYi"967 "2C/14091
1393 GS17 13MY1967 21.47710
1396 GS20 13KY1967 C. 06289
1554 GS 1 30C1967 19.92456
1557 GS 4 30C1967 14.91031
1560 GS 8 40C1967 IS. 18=153
1563 GS11 5OC1967 2C. 62386
1566 6S14 50C1967 It. 56577
1569 GS17 50C1967 6.03511
1572 CS20 60C1S67 C.C5C47
1575 GS28 60C1967 1.08376
1524 PI 20SE1967 36.87915
1521 SH 18SE1967 5.9C815
1525 FU 20SE1967 47.68138
1528 SB 2CSE1967 30.03175
1531 CH 25SE1967 1.75824
1549 C£ 1 4CC1967 21.70755
1550 PR 1 50C1967 2.77537
1426 CS 2 29MY1967 10.75066
1417 HO 2 22HY1967 3.40960
1425 RA 2 25HY1967 17.11607
14C2 TR 2 6HY1967 4.85163
1353 FR 2 23AP1967 46.24472
1403 CA 2 10HY1967 22.17862
1407 Sf 2 14KY1967 6.68776
1420 IH 2 23MY1967 3S. 39577
1423 MA 2 25HY1967 16.77274
202
-------
ia fenestrata var. geniculata A. Cleve
rS^a ^ 3en™^« A. Clave, Ofv. K. Svenska Vet.-Akad.
., 8:831, fig. 1-5. 1399.
Distinguished from the nominate variety by valves which are rather
strongly bent in the apical axis. In most specimens the midportion of the
valve is more strongly expanded on the side opposite the arc of the ends.
This entity is highly variable in both frustule structure and colony forma-
tion. Jhe valves are often somewhat constricted near the central and terminal
expansions. Perhaps best treated as a separate species of subspecies
(Skabitschewsky 1960).
l\l TAFENEVC TOT kr CF SIATinm ??f
(6C973 CH 1876 0.0236?
1 350T CH 19FE1881 0.29432
(46917 CH 12JA1946 0.01636
(46924 CH 10MY1946 0.00141
(46905 CH JA1947 0.00123
(46916 CH 4MY1947 0.00068
(46922 CH 21AU1947 0.01551
(46743 EV 20JN1937 0.01713
(46764 EV 17JL1937 O.OC806
(46765 EV 30AU1937 0.02231
( 1223 B 3 18HY1964 O.OC156
( 1226 C 7 16MY1964 0.01142
I 1229 0 5 14MY1964 0.03806
( 1232 E 5 16MY1964 O.C6261
( 1235 C 7 16JN1964 0.01130
( 1237 C1 2 8JN1964 0.00258
( 1241 E 2 13JN1964 0.00444
( 1244 F 1 11JN1964 0.02193
t 1247 B 3 14JL1964 0.02134
( 1441 B 6 24JL1964 0.01762
( 1251 C 7 16JL1964 0.00579
( 1254 D 2 15JL1964 0.01341
I 1257 E 3 14JL1964 0.00718
( 1260 F 3 6JL1964 0.05346
( 1442 B 6 2AU1964 0.02388
( 1265 C' 2 10AU1964 0.1073C
( 1268 E 2 15AU1964 O.C4650
( 1444 B 6 19SE1964 O.OC90S
( 1273 C' 2 10SE1964 0.09678
( 1276 D 3 18SE1964 0.06705
( 1279 E 1 16SE1964 0.54973
( 1282 E 4 16SE1964 0.06648
1 1285 F 1 15SE1964 0.48337
( 1288 B 3 150C1964 0.01306
( 1290 C1 1 16DC1964 0.06822
( 1293 D 2 150C1964 0.03302
J 1296 D 5 140C1964 O.C1967
( 1299 E 2 120C1S64 0.04084
[ 1302 E 5 130C1964 0.02429
( 1305 F 2 110C1964 0.03105
1 1300 C 7 6ND1964 C. 04562
( 1311 D 1 SN01964 0.05160
( 1314 D 4 9N01964 0.04306
( 1317 E 1 6N01964 0.08042
t 1:120 E 4 7NQ1S64 0.03102
( 1323 F 1 6NO1964 0.05854
1 1337 C 3 2MR1967 0.00147
( 1342 A 4 19AP1967 0.00180
I 1346 C 7 21AP1967 0.00534
I 3540 CH 11HY187S C. 40069
(46910 CH OC1945 0.00218
(46515 CH 20FE1946 0.05121
(46S23 CH 22N01946 0.00219
(46909 CH HR1947 0.01821
(46919 CH 5JN1947 0.00303
(46758 EV 5JN1937 0.00357
(46745 EV 3JL1937 0.04180
(46757 EV 25JL1937 0.05296
(46767 EV 270C1937 0.00387
( 1224 B 4 18MY1964 O.G0196
( 1368 A 3 4MY1967 0.00628 !
( 1376 E 5 6MY1967 0.01687 1
( 14H C 3 31MY1967 0.00410 >
1 141A E 5 28MY1967 0.00219 )
( 1448 A 6 10Jtl967 0.00354 1
1 1451 C 7 16J11967 0-00394 )
( 1454 E 5 15JH967 0.03601 1
( 1510 C 7 29AU1967 0.00632 )
( 1513 E 5 31AU1967 0.29898 1
1 T q^ £_j> 74.SE 1 967 n- 776 a 2
( 1540 C 5 40C1967 0.00496 )
( 1543 E 5 10GC1967 0.00718 >
( 1379 GS 3 9MY1S67 C. 04023 1
( 1385 GS 9 10MY1967 0.03296 I
_L_1388 GS12 12MY1967 0.03017 J
( 1391 GS15 12MY1967 0.00958 )
t 1557 GS 4 3GC1967 0.02990 )
<_.154P Si_-8 4001367 ..._0.iUlS.J
1 1563 GS11 5CC1967 0.01637 I
( 1-jAO ffMft 5CC1967 a. 00144
( 1571 GS19 6CC1967 0.00059
( 1546 LU 1 20C1567 0,0100.0 J
( 1530 ~FR 1 24SE1S67 C. 24002
( 1427 i,U i 29PY1967 0.0 1111,.-! ..„
( 1405 """ ES ~Z 12MY1S67 0.00645 1
( 1227 C* 2 13HY1964 0.00548
1230 E 2 16KY1964 0.00889
1233 B 3 5JM2964 0.01667
1439 B 6 5JN1964 0.00799
1239 D 4 11JN1964 0.02321
1242 E 3 13JM964 C. 00150
1245 F 2 11JN1964 0.01037
1248 B 3 24JL1964 0.01379
1249 C 3 8JL1964 0.00815
1252 C' 1 16JL1S64 0.08647
1255 D 5 15JL1964 0.01797
1258 F 1 6JL1964 C. 02360
1261 B 3 2AU1964 0.00589
1443 B 6 16AU1964 0.00593
1266 0 3 18AU1964 0. 04911
1269 E 3 15AU1964 0.02193
1271 C 7 22SE1964 0.01306
1274 0 1 17SE1964 0.36128
1277 0 4 18SE1964 0.05577
1280 E 2 16SE1964 C. 10212
1263 E 5 16SE1964 0.06743
1286 F 2 15SE1964 0.52539
1445 B 6 140C1964 0.03588
12S1 C° 2 160C1964 0.01712
1294 D 3 150C1964 0.01319
1297 D 6 140C1964 0.01333
1300 E 3 130C1964 0.02148
1303 E 6 130C1564 C. 00560
1306 F 3 110C1964 C. 03603
1309 C' 1 10N01964 0.14150
1312 D 2 8N01964 C. 09002
1315 D 5 9NC1964 0.03165
1318 E 2 7N01964 0.05327
1321 E 5 7N01964 0.02554
1324 F 2 6N01964 0.04891
1338 C 3 28NR1967 0.00264
1343 A 6 19AP1967 C. 00069
1347 E 2 23AP1967 0.00163
1371 C 3 4MY1967 0.00462
1409 A 4 23NY1967 0.00298
1414 E 2 28HY1967 0.00336
1438 I 5 14JN1967 C.C0363
1449 C 3 16JL1967 0.14903
1452 £ 2 14JL1967 0.00213
1504 A 3 28AU1967 0.00741
1511 E 2 ISE1967 0.04298
1534 A 6 19SE1967 0.00931
iqn F 1 P4SE1967 0.31916
1541 E 2 110C1967 C. 22663
1377 GS 1 9CY1967 0.00396
1380 GS 4 9HY1967 0.06558
1183 GS 7 10HY1967 0.07218
1386 GS10 12MY1967 0.02585
1389 GS13 12HY1967 0.012B9
1393 GS17 13MY1S67 C. 00274
1555 GS 2 30C1967 0.61794
1558 GS 5 4QC1967 0.03567
1561 GS 9 40C1967 _ C.10565_
T564 GS12 50C1967 0.00165
1569 GS17 5QC1967 0.00297
1574 GS22 60C1967 0.03164
1526 HO 1 20SE1967 0.00569
"1545 hi T ~ "20C1<67 C. 00676
1352 KW 2 21AP1S67 0.00859_
1421 "CH"2 " 23HY1967 C. 01735
( 3541 CH 1FE1681 C. 44018
(46921 CH 23N01945 0.00259
(46914 CH 19AP1946 C. 00214
(46920 CH 200E1946 C. 00062
(46912 CH AP1947 C. 01150
(46907 CH JL1947 0.04566
(46771 6V 11JN1937 C.OC238
(46770 EV 9JL1937 C. 03578
(46747 EV 1AU1937 C.OC743
(46761 EV 27«Y1S38 C.00545
1225 C 6 15MY1964 C.CC392
1228 0 2 14NY1964 C.OC973
1231 E 3 16NY1964 C. 02201
1234 B 3 18JM964 O.C2530
1236 C1 1 8JN1964 0.00525
1240 D 6 10JM964 C.CC153
1243 E 6 13JN1964 0.01879
1246 F 3 11JM964 C.C2968
1440 6 6 11JL1964 C. 01843
1250 C 6 10JU964 0.01644
1253 C1 2 16JL1964 C.C3B80
1256 E 2 14JL1564 C.CC550
1259 F 2 6JL1964 C. 02789
1262 B 3 17AU1964 C.C8190
1264 C1 1 10AU1964 C. 13516
1267 0 6 18AU1964 0.08214
1270 F 1 10AU1964 C. 07352
1272 C1 1 10SE1964 C. 25859
1275 0 2 17SE1964 C. 24515
1278 0 6 18SE1964 0.22676
1281 E 3 16SE1964 C. 05494
1284 E 6 17SE1964 0.06355
1287 F 3 15SE1964 C. 45536
1269 C 7 140C1964 0.03078
1292 D I 150C1964 C.C2609
1295 0 4 150C1964 C. 02378
1298 E 1 120C1964 0.02154
1301 E 4 130C1964 C. 05741
1304 F 1 UOC1964 0.03704
1307 B 6 N01964 0.21287
1310 C1 2 10NC1964 C. 11338
1313 0 3 9NC1964 0.02896
1316 D 6 9NC1964 C. 01133
1319 E 3 7NC1964 0.01047
1322 E 6 7NC1964 C. 01333
1325 F 3 6N01964 C. 03778
1340 C 7 28HR1967 C.CC218
1345 C 5 25AP1961 C.CC195
1343 E 5 23AP1967 C.CC546
1375 E 3 7MY1967 0.00241
1410 A 6 24MY1967 C.C1126
1415 E 3 28MY1967 C.OC225
1446 A 3 11JL1967 C. 00734
1450 C 9 1&JL1967 C.CC190
1453 E 3 15JL1967 C. 00253
1509 C 5 2SE1967 C. 01514
1512 E 3 1SE1967 C. 06675
1535 C 7 20SE1967 C. 00322
1538 E 5 23SE1967 C.C3867
1542 E 3 11CC1967 C. 18308
1378 GS 2 9MY1967 C. 01262
1384 GS 8 10MY1967 C. 01294
1387 CS11 12MY1967 C.C4357
1390 CS14 12MY1967 C. 00567
1398 CS22 14KY1967 C.C1214
1556 GS 3 30C1967 C. 01043
1559 GS 7 40C1967 C. 16067
1562 GS10 50C1967 0.01727
1567 CS15 50C1967 C. 02382
1570 GS18 50C1967 C. 01963
1547 PS 1 2QC1967 C. 03992
1528 SB 1 20SE1967 C.C1444
1549 CCf 1 40"C1967 C.04111
1404 'S 2 10HY1967 C. 12703
1422 GA 2 " " 23KY196"7 C.OC511
_
203
-------
Tabellaria fenestrata var. intermedia Grun.
Tdbellaria fenestvata var. intermedia Grunow in\ Van Heurck, Syn. Diat.
Belgique, pi. 52, fig. 6-8. 1881.
Distinguished from the nominate variety by its shorter valves which are
usually much wider in girdle view and which usually contain more than 4 septae,
Maximum length of observed specimens less than lOOy. Perhaps best treated
as a separate species.
713 TAFENEVI TCT NO CF STATICNS
( 3540
(46919
1511
15*1. .
1381
1386
1554
1557
1560
1548. __
CH
CH
E 2
E 2
GS 5
....G.U2. -
GS 1
GS 4
GS 8
CA L
11KY1879
5JN1947
1SE1967
11CC1967
10KY1967
12WY1S67
3QC1967
3CC1967
40C1967
30C1967
0.07455 )
0*00303 (
O.OC614 )
C.OC532 I
O.C0239 1
0,_0_L207 1
0.00356 )
0.00374 1
0.00945 )
0,01272 )
3541
1449
1513
1542
1282
1389
1555
1558
1574
134S
CH
C 3
E 5
E 3
GS 6
GS13
GS 2
GS 5
GS22
CI 2
1FE1881
16JL1S67
31AU1967
11CC1967
10MYT967
12fY1967
30C1967
40C1S67
60C1967
19AP1967
0.03513 t (46912
C. 03439 1 ( 1454
C. 02027 )
C. 01017 1
0.00278 )
C. 00516 ) _ _
0.01412 )
C. 00793 )
CH
E 5
1537 £ 3
1380 CS 4
1366 CS10
1393 _ «S17
1556
1559
0.00288 1 1 1547
0.00359 I (
CS 3
CS 7
KS 1
AP1S47
15JL1967
24SE1967
9XY1967
12PY1967
13KY1967
30C1967
40C1967
20C1967
C.C1150
C. 00200
C.OC863
C.CC336
C. 005 7 5
C._C_C274._
C.OC521
C. 01049
C.OC798
Tabellaria floooulosa (Roth) Kutz.
Conferva flocoulosa Roth, Catalecta Bot., Fasc. 1, p. 192, pi. 4, fig. 4;
pi. 5, fig. 6. 1797.
Tabellaria floooulosa (Roth) Kutzing, Bacill., p. 127, pi. 17, fig. 21.
1844.
Cells in girdle view short, rectangular with rounded ends, united by
gelatinous pads at the corners into zig-zag colonies. Usually more than 8
conspicuous septae, lying in the. valvar plane, are evident in each cell.
Valves linear, strongly expanded at the middle and less expanded at the ends.
Valves often slightly asymmetric to the transverse axis, being wider at one
side of the central expansion than at the other. Valves of specimens from
Lake Michigan 15-65u long, 7-12p broad at the widest extremity. Striae fine,
perpendicular to the midline throughout, 18-20 in lOy. Axial area narrow,
linear, in some instances lanceolately widened at the middle of the valve.
At the ends of the valves there are pore fields composed of very fine, irre-
gularly arranged puncta. A conspicuous slime pore is present, usually lying
to one side of the axial area at about the level of the beginning of the
central expansion. In asymmetric valves the slime pore is usually toward
the broader end of the valve. In some populations fine marginal spines are
present at the ends of the valves.
714 TAFICCCU TCT NC OF STATIONS 318
(60973
( 3507
(46.908
(46914
(46920
(46912
(46919
146922
146743
(46764
(46763
(46752
146744
(46749
(46751
(46759
1223
1226
1229
1232
1235
1237
CH
CH
CH
CH
CH
CH
CH
CH
-6V
EV
EV
EV
EV
EV
EV
EV
B
C
D
E
C
C1
1,876
19FE1881
CE1945
19AP1S46
20Dtl946
AP1947
5JN1947
21AU1947
20JN1937
17JL1937
23AU1937
15SE1937
6CC1937
12MR193B
30WR1938
19CY1938
3 18MY1964
7 16HY1964
5 14MY1964
5 16MY1964
7 16JN1964_
2 8JN1964
1.A2966
7.99185
5.23666
3.5C443
2.12282
2.98954
0.78906
3.43370
5.27533
11.0556C
4.54545
4.48411
2 .73.117 .
4.41801
2.07682
1.98514
13.01664
6.12633
6.66089
6.4524C
23.72412..
11.36891
1 3540
(46910
(46917
146924
(469C5
I46S16
(469C7
46758
(46745
(46757
(46765
(46760
(46748
(46768
(46772
(46761
1224
1227
1230
1233
1439
( 1238
CH
CH
Cl-
CH
CH
CH
CH
EV
EV
EV
EV
EV
EV
EV
EV
EV
B 4
C' 2
E 2
E 3
B 6
D 3
1.1MY1879
QC1945
12JA1946
10MY1946
JA1947
4HY1947
JL1947
5JN1937
3JL1937
25JL1937
30AU1937
22SE1937
130C1937
16MR1S38
18AP1938
27NY1938
18MY1964
13M1964
16MY1964
5JN2964
5JN1964
11JN1964
17.06192
0.78101
3.15362
2.24688
8.16644
1.10269
4.87196
3.19521
12.87356
7.00977
12.18070
4.27397
0.44833
1.96972
3.37828
3.96817
4.39173
7.82981
7.C5290
21.17119
13.84615
2.66000
< 3541
(46921
(46915
(46923
(469C9
(469C6
(46913
(46771
(46770
(46747
146769
(46750
(46767
(46762
(46756
(46766
( 1225
I 1228
( 1231
( 1234
( 1236
( 1239
CH
CH
CH
Ch
CH
CH
Ch
EV
EV
EV
EV
EV
6V
EV
EV
EV
C
D
E
B
C*
0
1FE1881
23N01945
20FE1946
22NG1946
HR1947
HY1S47
6AU1947
11JN1937
9JL1937
1AU1937
7SE1937
24SE1937
27CC1937
18NR1938
27AP1938
14DE1S38
6 15NY1964
2 14MY1964
3 16HY1964
3 18JN1964
1 8JN1964
4 11JM964
14.47716 >
1.67028 )
4.62642 )
4.83018 )
8.87936 )
C. 56082 )
C.C5230 )
2.26332 )
18.53529 )
2.77248 1
1C. 94225 )
9.23787 )
2.92445 )
2.24967 )
C. 89326 )
6.65399 )
3.56723 )
4.06727 )
5.82135 )
15.54129 )
22.89203 )
13.32173 )
204
-------
- { ffiO B_6 10JN1964 l?.3tm ( , ,,..
. .... - ° 13JN1964 13.30076 )
1 1246 F 3 11JN1964 19.24*41 i
JL1Z5J! C 6 10JL1964 14.10072
I.IZ56 E 2 14.^1 1«*4 4.2317(1
I 1262 B 3 pifljo^ ";"ijo
1 126* P 3 18AU1964 3.19209
1 1271 C 7 22SE1964 20.56-;™
1 I277 D 4 16SE1964 15.61537
I 1283 E 5 16SE1964 7.72*4*
( 1286 F 2 15SE1964 8.42820
1 1*15 B 6 140C1964 18.94977
I IZSl L- 2 160C1964 11.98571
( 1294 D 3 15DC1964 15.22893
1 1300 E 3 l*nri
-------
Thalassiosira fluviatilis Hust.
Thalassiosira fluviatilis Hustedt, Ber. Deutsch. Bot. Ges., 43:565, figs.
1-4. 1926.
Cells short cylindric with either concave or convex valve faces. Speci-
mens from Lake Michigan 12-27y in diameter. Ornamentation of the valve sur-
face composed of fine areolae which are arranged in single, more or less
sinuous, rows of varying lengths. A corona of short submarginal spines,
about 14 in lOy, is present and in addition a single (very rarely 2 or 3)
much larger spine arises just interior to the level of the smaller spines.
Usually 2-5 more or less conspicuous slime pores occur around the center of
the valve about one-fourth the distance from the center to the edge of the
valve.
Previous records indicate that this species is a halophilous freshwater
form of wide distribution. It is occasionally in samples from regions of
Lake Michigan subjected to chloride contamination. In rare instances it
occurs in considerable abundance.
715 THFLUVIA ICT MO OF STATIONS
( 1544 KU 1 20C1967 0.00238 ) I 1522 BH 1 18SE1961 0.11123 I ( 1531 GM 1 25SE-1967 C.0253i
1 1350 BH 2 19AP1967 O.OOZ20 I ( ....
Thalassiosira levandeiri. Van Goor
Thalassiosira levanderi Van Goor, Rec. Trav. Bot. NSerlandis, 21:322,
fig. 11. 1924.
Cells cylindrical with slightly convex valve surfaces, specimens from
Lake Michigan 8-19y in diameter. Ornamentation of the valve surface com-
posed of irregularly-arranged areolae, about 20-22 in 10y near the center of
the valve, becoming finer near the margins. At the margins of the valve
there is a corona of spines, about 10 in 10y. These spines appear to be of
two varieties, larger, tubular spines rather evenly spaced with 3-4 smaller,
apparently solid spines between. Two to three conspicuous slime pores occur
near the center of the valve.
Only occasional specimens of this entity have been noted in collections
from Lake Michigan.
Coll: 1197.
Thalassi.osi2>a'visuz>gis Hust.
Thalassiosira visurgis Hustedt, Abh. Naturw. Ver. Bremen, 34(3):207,
pi. 1, figs. 1-4. 1957.
Cells cylindric with slightly convex valve faces. Specimens from Lake
Michigan 14-23u in diameter. Ornamentation of the valve surface composed
of more or less radially-arranged areolae, about 16 in 10y near the center of
the valve, becoming slightly finer near the margins. A submarginal corona
of small spines, 14-15 in lOy, is present and in addition 2 (rarely 1-4)
much larger spines arise just interior to the circlet of smaller spines.
These spines are usually about 120° from one another. Usually a single
slime pore is present near the geometric center of the valve.
206
-------
The limited number of previous reports available indicates that this
entity occurs in inland waters of relatively high dissolved solids content
as well as in brackish water.
7P _ THSEE_CgA_JJiI_hDJBf_«ATlEKS ____ 12
I 131t E_L 6tini9**__a»fl£m i_ ( 1557 GS 4
I 1560 GS 8 40C1967 0.00472 ) ( 1563 GSTT
I 1544 MU 1 20C1967 O.OC238 I 1 1531 GH 1
3CC1S67 C.00747 I ( 1559
5CC1967 0.00234 ) ( 1575 GS28
SE1967 C.202B7 ) ( 1515 HI 1
40C1967 C.C035C 1
60C1967 C.00129 )
20C1S67 C.OC676 1
( 1548
CA 1
30C1S67 0.01272 I ( 14C1
«C 2
6HY1967 C.00588 ) ( 1422
23MY1967 C.00511 1
Genus Tropidoneis Cleve
Cleve, Diatomist, 1:22. 1890.
Although most members of the genus Tvopidoneis are restricted to marine
or brackish-water habitats, the single representative that occurs in our
collections is widely reported from strictly freshwater situations. It
reaches its maximum abundance in benthic communities but apparently adopts
planktonic existence with facility and is often taken in plankton collections.
Tropi-done-Ls lep-idopteva var. proboseidea Cleve
Trop-Ldone-Ls *iepi,doptera var. probosaidea Cleve, K. Svenska Vet.-Akad.
Handl., Ny Foljd, 26(2):25. 1894.
718 TRLEFIVP 1CT ND Cf STATIONS
146750
L 155.3
EV
24SE1?37 O.OC471 ) 146762 EV
1967 0.00734 I I 1421 CH 2
18KR1938
23HY1967
0.02206 I
0.01735 I
< 1571
I
CS19
60C1967 C.CC059 )
Species inoertae sedis
Tropidoneis sp. #1.
TGT HC CF ST/iTICN!
i_JZ40
73.202 SEC. CPU TIME
O.CC153 ) I 1268
IStU1964 0.00274 ) I
207
-------
CONCLUSIONS
It is apparent from the areal and temporal distribution of dominant
plankton diatoms in Lake Michigan that certain entities are associated
with certain broadly defined conditions of water quality. Certain taxa,
notably Cyolotella eomta, C. opereulata, C. ocellata and Melosira distorts,
are apparently relatively important constituents of only extremely oligo-
trophic floras and are rapidly replaced in disturbed portions of the lake.
These entities, with the exception of M. distorts, are still found in the
offshore flora of Lake Michigan although they appear to be relatively
less abundant than they previously were, particularly in the southern.
basin of the lake. Reduction in the relative abundance of these entities
is among the first indications of disturbance of the ecosystem that ap-
pears in phytoplankton assemblages.
Several entities which are relatively more abundant in the plankton
flora appear to be somewhat more tolerant of changing conditions but are
rapidly reduced in abundance with extensive chemically measurable change.
Notable examples of this tendency are found among some of the modern off-
shore plankton dominants such as Tabellaria fenestrata, Melosira islandioa,
Rhizosolenia eriensis, Stephanodisaus transilvaniaus, Synedra ulna var.
ohaseana, C. mioniganiana and C1. kuetzingiana. Decline in relative abun-
dance of these taxa is the first indication of serious disturbance of
areas within the Lake Michigan ecosystem.
Other entities which are relatively abundant in undisturbed portions
of the lake appear to be favored by slight increases in trophic level and
flourish in moderately disturbed portions of the lake. They initially
show an increase in relative abundance only to decline if pollution in-
creases. Some notable examples of this tendency are Astevionella formosa,
Fragilavia arotonensis, Stephanodisous alpinus, S. minutus, S. niagarae,
S. hantzschii, Synedva delicatissima, S. ulna var. danioa, S. ostenfeldii
and S. filiformis. Decline in the relative abundance of these species in
the plankton flora is usually accompanied by obvious decline in water
quality and disturbance in higher trophic levels of the ecosystem such
as the fish and benthic invertebrate faunas.
A number of species which were formerly apparently able to thrive
only in naturally eutrophic estuaries and inshore areas of the lake are
favored by increasing pollution and are able to flourish in highly dis-
turbed portions of the open lake. Some of the more abundant entities
showing this pattern of distribution are Melosira granulata and its varie-
ties, Fragilaria eapuaina and its varieties, F. constmens, F. intermedia
and Stephanodisous tenuis. Within this group Melosira granulata appears
to be less successful in the offshore flora than might be expected from
its usual dominance in smaller eutrophic lakes, probably due to its tem-
perature tolerance. Its varieties appear to favor even higher trophic
levels and become most abundant in extremely disturbed environments. On
the other hand, the varieties of Fragilaria aapuoina appear to be better
208
-------
adapted to existence in the offshore flora than the nominate variety. The
species in this group presently are dominant in highly disturbed areas
such as the nearshore waters of the southern basin of Lake Michigan and
Green Bay. Most of them are best adapted to the ecosystem of smaller
lakes, and with further disturbance of the system they will likely be re-
placed by entities in the following category. The single exception to
this is Stephanodiseus tenuis which is well adapted to existence in the
Great Lakes and which has become dominant in the plankton floras of Lake
Ontario and Lake Erie.
The final general group of dominant plankton species includes those
taxa which were apparently not able to live in Lake Michigan in its ori-
ginal condition and which have been introduced following pollution. In-
cluded in this group are such species as Asterionella blea'kleyi, Diatoma
tenue var. elongatwn, Stephanodiseus binderanus, S. subtilis, Nitzsehia
dissipata and finally the species of Thalassiosira and Coseinodiseus now
present. Within this group Diatoma tenue var. elongatum, Nitzsehia dis-
sipata, Stephanodiseus binderanus and 5. subtilis first appear in our
samples from the late 1930rs. Ahlstrom (1936) reported Diatoma tenue
var. elongatum from samples taken in the early 1930's and it is possible
that some of the populations he reported as Stephanodiseus hantzsehii
may belong to either S. binderanus or S. subtilis. Nitssehia dissipata
is a very widely distributed organism and seems to become moderately
abundant in eutrophic lakes in many localities. Perhaps the most interest-
ing taxon in this group from the standpoint of direct effects on water
quality is S. binderanus. From the time of its introduction, probably
sometime in the early 1930's, it increased in abundance to the point that
it caused serious problems with short filter runs at the Chicago filtra-
tion plant in the mid and late 1950Ts (Vaughn 1961). At the present time
it is dominant in the spring flora at some stations in the extreme southern
basin and in Green Bay. It also seems to be increasing at the offshore
stations as a considerable increase was noted between comparable-stations
in 1964 and 1967. It should be pointed out that estimates of the increase
in abundance in this particular nuisance organism are probably highly con-
servative because its peak abundance is associated with the development of
the thermal bar (Stoermer 1968). The final series of taxa, members of the
genera Fhalassiosira and Coseinodiseus, which appear to have been intro-
duced into Lake Michigan sometime after 1945, apparently represent the
end members of the pollution sequence in the Great Lakes, so far as the
plankton diatom flora is concerned. At the present time the distribution
of these entities in Lake Michigan is quite restricted. Coseinodiseus
subsalsus has become one of the dominant species in Lake Erie and can be
expected to increase dramatically as pollution of the lake continues.
Consideration of distribution and relative abundance of the major
components of the plankton flora leads one to the conclusion that Lake
Michigan is probably at the present time about at the "break point" be-
tween rather moderate and transient algal nuisances, largely confined to
the inshore waters, and drastic and most likely irreversible changes in
the entire ecosystem. As pointed out above, all of the plankton diatoms
associated with extreme water quality degradation in the Great Lakes
209
-------
system are now present in Lake Michigan. While the end members of the
sequence are now present in only negligible numbers, the apparently ac-
celerating increase in S. bi-nderanus is disturbing both from the stand-
point of its direct effect on water quality and because of the effects
on the total system its presence indicates. Based on our qualitative
evaluation of floristic changes in Lake Michigan it appears that rever-
sal of the present trends will depend largely upon actions taken within
the next, at most, ten years. It should be emphasized here that the
samples available to us tend to introduce a conservative bias to these
considerations. The early samples are all from the area which was ear-
liest and most severely affected. Many of our recent samples come from
the areas of the lake furthest removed from, and least affected by man's
activities. This, unfortunately, shows only the worst conditions in Lake
Michigan at the early dates and a spectrum including the best conditions
in the recent samples. While local pollution problems affecting the
qualitative aspects of the plankton diatom flora have been present for
a long time, it should be pointed out that the floras of these inshore
areas have now been very drastically altered and, more importantly, that
the effects of pollution now are becoming increasingly evident through-
out the system.
The areal distribution of the major plankton dominant taxa follows
the trends one would expect from consideration of the location of major
effluent sources with one striking exception. The plankton floras of
southern Green Bay and local areas surrounding.harbors and major stream
mouths most strongly differ from the flora of the open lake. The ex-
treme southern crescent of the lake, from Chicago to Benton Harbor,
Michigan, is also obviously and strongly affected. Somewhat surprisingly,
it also appears that the Ludington-Manistee-Frankfort area of the northern
Michigan coast is apparently quite substantially disturbed. From the
qualitative aspects of the flora it is suggested that this disturbance
is largely the result of shifts in the conservative element balance rather
than particularly high nutrient levels. From considerations of effluent
sources and the morphometry of Lake Michigan, it is tempting to assume
that the southern basin of the lake might be much more strongly affected
by pollution than the northern basin. Our results tend to indicate that
this is only partially true. It appears that the nearshore floras of
the southern basin are more strongly affected than similar areas in the
northern basin. On the other hand, more recent blooms of introduced or-
ganisms appear at stations in the northern basin also.
One of the striking observations from the present study is the large
number of rare species that were recorded from our collections. We en-
tered this study with the apparently rather naive assumption that the
offshore plankton of" Lake Michigan would not be available to other than
euplanktonic forms and thus the plankton assemblages would resemble true
oceanic plankton more than limnoplankton. This assumption proved to be,
at best, only partially correct. On a quantitative basis it is true that
ten or less entities usually comprise more than ninty percent of the total
assemblage. It is also true, however, that these major dominants rarely
exceed twenty percent of the species noted at a given station. In a given
210
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assemblage a certain fraction of these minor species are euplanktonic
forms present in low abundance. In almost all collections there are also
sizable fractions of entities that are obviously derived from habitats
other than the plankton. As would be expected, these entities are most
abundant in collections taken from shallow water areas but they are also
represented in the majority of collections taken even from midlake sta-
tions. The significance of this component of the flora is very difficult
to determine. Included in it are a large number of apparent new records
for the United States and a number of entities which are apparently un-
described. I have previously speculated (1967) that one of the effects
of nutrient pollution in Lake Michigan is to render the plankton environ-
ment more accessible to entities which find their primary habitat in ben-
thic assemblages. The results of this study would tend to support this
contention. Any assessment of the impact this component of the flora
has on practical problems in water quality control, or even of their
value as indicators of environmental conditions, is extremely difficult
at the present time. A good deal of further work will be necessary be-
fore this information can be reduced to a useful context. It is, how-
ever, obvious that any realistic attempt to treat the factors operational
in the Great Lakes ecosystem must account for this component of the biota
which has never, as yet, been investigated in a systematic manner.
Prior to 1966 slightly less than 350 taxa of diatoms had been reported
from Lake Michigan. Removal of the obvious synonyms from this list re-
duces this number to something less than 300. In the present study more
than 700 morphologically distinguishable entities were noted. Considering
the fact that only plankton collections, which are depauperate in species
compared to periphyton collections, were examined, it is obvious that our
knowledge of the biological operators at this level of the Lake Michigan
ecosystem is still quite primitive. There is still need for critical
taxonomic revision of some of the genera present. This is particularly
true of some of the highly variable planktonic genera such as Synedra and
Fragilaria. Even for the entities well enough known so that it is pos-
sible to make firm statements about their taxonomic relationships, there
is still a critical lack of knowledge regarding life cycles and quantita-
tive environmental requirements. Of the entities treated here, the com-
plete life cycles of less than twenty are fully known. For even fewer is
there any trustworthy experimental information regarding nutrient and other
environmental requirements. If we are ever to be able to gain the neces-
sary insight to understand and manage large aquatic ecosystems, such as
Lake Michigan, such information must be forthcoming. It is hoped that
this study will furnish part of the necessary background to implement such
studies.
When working with large, complex and variable assemblages as was
necessary in this study, it is tempting to seek some measure of the dis-
tribution of populations within the various assemblages which will furnish
insight into the factors affecting them. One of the obvious statistical
devices to employ in this context is diversity analysis. One approach to
this has been used by a group at the Academy of Natural Sciences of Phila-
delphia with apparent success in determining the effects of pollution on
211
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stream diatom populations (Patrick, Hohn and Wallace 1954; Patrick 1963,
1964). In the present study, preliminary analysis of the method utilized
by these workers indicated serious difficulty in applying it to plankton
diatom populations in Lake Michigan. Their diversity calculations are
based on the log normal population model advanced by Preston (1948).
Hutchinson (1967) has pointed out that in plankton assemblages tolerable
fit to a log normal curve may be achieved but that the mode remains at
the origin even if very large assemblages are considered. In our analy-
sis we adopted an information theory based diversity estimate which has
been used, with apparent success, in determining shifts in subfossil dia-
tom populations (Stockner and Benson 1967; Stoermer and Yang 1968). The
results of this analysis are presented in appendix "A." Although this
manipulation brought to light some points of interest, it is emphasized
that diversity alone furnishes very little information regarding the
trophic status of Lake Michigan plankton diatom populations. If all the
assemblages are considered, the modal diversity values fall at 1.80 and
the modal redundancy values fall at 0.60. If localities are considered
it is apparent that the extremes, both high and low, of diversity and re-
dundancy are found in harbor collections. If the offshore stations are
considered it is apparent that the range of diversity values recorded at
a given sampling station on successive sampling dates is, in most in-
stances, fully as great as the difference between any two offshore sampl-
ing stations at a given date. On the basis of our observations there is
a slight tendency for the average diversity, as measured by the index
employed, to increase with eutrophication in Lake Michigan and for re-
dundancy values to be reduced. This picture is complicated by the fact
that most areas of the lake that are appreciably affected are also in
nearshore localities which are more easily invaded by entities arising
from benthic communities.
The following picture emerges from our consideration of diversity
plankton diatom assemblages in Lake Michigan. Before the influence of
man's activities, nutrients were at such low levels that many potential
occupants of the habitat were effectively excluded. This is reflected
in assemblages of rather low diversity. In addition plankton populations
are strongly affected by seasonal succession. The dominant populations
wax and wane during the seasonal cycle and these shifts are strongly re-
flected in diversity estimates derived from samples taken at successive
points in time. It will be noted that the spring bloom tends to depress
diversity and the progression of this bloom can be traced from south to
north during 1964 and 1967 by reference to the diversity values given in
appendix "A." During this stage in succession average diversity values
will be low and extremes, both high and low, will be minimized. With
addition of nutrients to such an environment it will be rendered avail-
able to more taxa, but the added nutrients will also allow increased popu-
lation densities of the dominant taxa during blooms. This produces the
effect that we presently- see in Lake Michigan. There is a slight average
increase in diversity but the extreme high and low values found in speci-
fic spot samples both exceed those found in the unaltered environment.
As further nutrients are added, the favored species will occur in in-
creasing densities but fewer taxa will be added to the total assemblage.
212
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This would produce further spread in the possible values from spot samples,
but average diversity values from many samples taken during a given sea-
son would closely approximate the values derived from samples from the un-
altered environment. With gross pollution the plankton habitat would be
denied to many species and those tolerant of such conditions would occur
in very high density, hence diversity would be strongly depressed.
In previous studies related to water quality, diversity information
has largely been used to detect exactly these conditions. This would cer-
tainly not be a viable context for the Great Lakes. Because of the ex-
tremely long residency time of water in the lakes and because their main
utility lies in their aesthetic appeal and as a source for very high-quality
potable water, adequate indicative criteria of water quality should be based
on more subtle assessments. If the problem of time course considerations
could be escaped, diversity measurements would be of much greater value in
plankton studies, It should be pointed out that this is exactly the case
in studies of fossil assemblages where an integration of the yearly flor-
istic succession is obtained. It would appear that this is the reason why
diversity measurements are a much more satisfactory tool in these studies.
213
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SUMMARY
1. The present study shows a considerably more diverse diatom flora
in Lake Michigan than had been reported previously. Contrary to expecta-
tions, a substantial number of the entities taken in plankton collections
are obviously derived from benthic communities.
2. There has been an increase in the relative numbers of entities
associated with degradation of water quality during the period of study.
Certain entities associated with moderate to high levels of pollution
which were not noted in earlier collections were apparently introduced
prior to 1937 and now cause nuisances in certain inshore areas and are
becoming increasingly abundant at offshore stations throughout the lake.
Certain entities associated with extreme degradation of water quality in
the Great Lakes system were introduced into Lake Michigan between 1947
and 1964. Although now present in only low numbers, they indicate the
pollution of Lake Michigan is reaching critical levels.
3. Extreme differences exist, particularly at certain times of the
year, between the coastal areas and open waters of the lake in terms of
both abundance and species composition of the phytoplankton flora.
4. On the basis of the plankton diatom assemblages present, it
appears that the most strongly affected areas of Lake Michigan arei the
extreme southern crescent of the lake, from Chicago, Illinois, to Benton
Harbor, Michigan; the southern portion of Green Bay; the northern Michigan
coast in the Ludington-Manistee-Frankfort area. In addition, local pro-
blems exist around most of the major harbors.
5. Our study suggests that diversity estimates, based -on single
plankton collections, offer relatively little information regarding the
condition of the waters sampled.
214
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ACKNOWLEDGMENTS
We wish to acknowledge the helpful cooperation of the Limnology De-
partment of the Academy of Natural Sciences of Philadelphia for loan of
much of the material used in this project as well as access to their uni-
que reference collections of specimens and literature. Particular appre-
ciation is extended to Dr. C. W. Reimer of that institution for pointing
out sources of material and for many helpful discussions regarding the
taxonomic problems met with during the study.
At various phases of the project several individuals gave us material
help in machine processing of data. In this regard we wish to acknow-
ledge the contributions of Dr. V. E. Noble, now of the Naval Oceanographic
Office, Washington, Dr. J. C. K. Huang, now of the Scripps Institution of
Oceanography, La Jolla, and Mr. R. Rossmann and Dr. J. A. Robbins of the
Great Lakes Research Division staff.
215
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Appendix A
List of Collections
Collections listed without alphabetical prefix are housed in the
collection of the Great Lakes Research Division. Those with the prefix
ANSP are the property of and are housed at the Academy of Natural Sciences,
Philadelphia. In the case of collections in which the diatom assemblage
has been analyzed in detail the following characteristics are listed: the
total number of species present, the total number of specimens in the as-
semblage, an estimate of diversity computed as „_ _ * . , . where pi
th i=1
represents an estimate of the proportion of the i species, and an esti-
mate of redundancy computed as R= 1-H/lnS. Other collections have been examined
in greater or lesser detail but have not been counted.
221
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804 Shore plankton from beach near entrance to Wilderness St. Park,
Michigan. Coll: E. F. Stoermer. 28 Sept. 1965.
810 Surface plankton from north side of Mackinaw City Public Dock,
Mackinaw City, Michigan. Coll: E. F. Stoermer. 28 Sept. 1965.
826 Surface plankton from river side of breakwater, Elk River. Coll:
E. F. Stoermer. 29 Sept. 1965.
827 Surface plankton from Lake Michigan side of breakwater, Elk River,
Michigan. Coll: E. F. Stoermer. 29 Sept. 1965.
841 Surface plankton, Muskegon Lake, Michigan, near harbor entrance.
Coll: E. F. Stoermer. 4 Oct. 1965.
842 Surface plankton, Lake Michigan, 7 mi at 210° from White Lake,
Michigan, inlet, 9 mi 300° from Muskegon, Michigan, inlet. Coll:
E. F. Stoermer. 5 Oct. 1965.
844 Plankton, surface, Station A-3. 42°05t30IlN; 86°43'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
845 Plankton, 5 meters, Station A-3. 42°05r30"N; 86043'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
846 Plankton, 15 meters, Station A-3. 42°05'30"N; 86043'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
847 Plankton, surface, Station A-4. 42003'30tfN; 87°06t30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
848 Plankton, 5 meters, Station A-4. 42°03'30"N;P87°06'30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
849 Plankton, 15 meters, Station A-4. 42°03'30"N; 87°06'30"W. Coll:
E, T. Stoermer. 12 Nov. 1965 (500 ml).
850 Plankton, surface, Station A-6. 41052'00"N; 87°27'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
851 Plankton, 5 meters, Station A-6. 41°52fOO"N; 87°27fOO"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
852 Plankton, 15 meters, Station A-6. 41°52I00"N; 87°27fOO"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
853 Plankton, surface, Station C-3. 42°49I10IIN; 86°28t25"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
854 Plankton, 5 meters, Station C-3. 42°49I10"N; 86°28f25"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
855 Plankton, 15 meters, Station C-3. 42049'10"N; 86°28f25"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
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856 Plankton, surface, Station C-5. 42°49'00"N; 86°50'00"W. Coll-
E. F. Stoermer. 12 Nov. 1965 (500 ml).
857 Plankton, 5 meters, Station C-5. 42°49I00"N; 86°50'00"W. Coll-
E. F. Stoermer. 12 Nov. 1965 (500 ml).
858 Plankton, 15 meters, Station C-5. 42°49'00"N; 86050'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
859 Plankton, surface, Station C-7. 42047'30"N; 87°34'30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
860 Plankton, 5 meters, Station C-7. 42°47I30"N; 87°34'30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
861 Plankton, 15 meters, Station C-7. 42°47'30"N; 87°34'30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
862 Plankton, surface, Station D-2. 43°56fOO"N; 86°39'30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500ml).
863 Plankton, 5 meters, Station D-2. 43°56tOO"N; 86°39f30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
864 Plankton, 15 meters, Station D-2. 43°56fOO"N; 86°39'30"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
865 Plankton, surface, Station D-4. 43°48'00"N; 87°03'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
866 Plankton, 5 meters, Station D-4. 43°48tOO"; 87°03fOO"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
867 Plankton, 15 meters, Station D-4. 43°48'00"N; 87003'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
868 Plankton, surface, Station D-5. 43°38'40"N; 87°31I00"W. COIL-
ED F. Stoermer. 12 Nov. 1965 (500 ml).
869 Plankton, 5 meters, Station D-5. 43<"38'4011N; 87031'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
870 Plankton, 15 meters, Station D-5. 43°38'40"N; 87°31'00"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
871 Plankton, surface, Station E-2, 44°37rOO"N; 86*21I42"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500ml).
872 Plankton, 5 meters, Station E-2. 44°37I00"N; 86°21'42"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500ml).
873 Plankton, 15 meters, Station E-2. 44°37'00"N; 86°21T42"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
874 Plankton, surface, Station E-3. 44°34'00"N; 86°40*OOf'W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
223
-------
875 Plankton, 5 meters, Station E-3. 44°34'00"N; 86°40tOO"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
876 Plankton, 15 meters, Station E-3. 44°34'00"N; 86°40fOO"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
877 Plankton, surface, Station E-5. 44°25I30"N; 87°10'18"W. Coll;
E. F. Stoermer. 12 Nov. 1965 (500 ml).
878 Plankton, 5 meters, Station E-5. 44025'30"N; 87°10'18"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
879 Plankton, 15 meters, Station E-5. 44°25'30"N; 87°10'18"W. Coll:
E. F. Stoermer. 12 Nov. 1965 (500 ml).
883 #25 net surface plankton, 8 mi. at 269° off Grand Haven, Michigan.
Coll: E. F. Stoermer. 12 Jan. 1966.
896 Plankton from Grand River in town of Spring Lake, Ottawa County,
Michigan. Coll: E. F. Stoermer. 13 April 1966.
898 Plankton, surface, Station A-3. 42°05'30"N; 86°43?00"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
899 Plankton, 5 meters, Station A-3. 42°05!30"N; 86°43'00"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
900 Plankton, 15 meters, Station A-3. 42°05'30"N; 86°43'00"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
901 Plankton, surface, Station A-4. 42°03'30"N; 87°06'30"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
902 Plankton, 5 meters, Station A-4. 42°03I30"N: 87006'30"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
903 Plankton, 15 meters, Station A-4. 42°03I30"N: 87°06t30"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
904 Plankton, surface, .Station A-6. 41°52fOO"N; 87°27!00"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
905 Plankton, 5 meters, Station A-6. 41°52I00"N; 87027fOO"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
906 Plankton, 15 meters, Station A-6. 41°52tOO"N; 87027'00"W. Coll:
E. F. Stoermer. 28 March 1966 (500 ml).
907 Plankton, surface, Station C-3. 42°49'10"N; 86°28I25"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
908 Plankton, 5 meters, Station C-3. 42°49110"N; 86°28'25"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
909 Plankton, 15 meters, Station C-3. 42°49f10"N; 86028'25"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml). • ,
224
-------
910 Plankton, surface, Station C-5. 42t>49'00"N; 86°50'00"W Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
911 Plankton, 5 meters, Station C-5. 42°49'00"N; 86°50'00"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
912 Plankton, 15 meters, Station C-5. 42°49'00"N; 86050'00"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
913 Plankton, surface, Station C-7. 42°47'30"N; 87°34'30"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
914 Plankton, 5 meters, Station C-7. 42°47'30"N; 87034'30"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
915 Plankton, 15 meters, Station C-7. 42°47'30"N; 87°34I30"W. Coll:
E. F. Stoermer. 20 March 1966 (500 ml).
916 Plankton, surface, Station D-2. 43°56'00"N; 86°39T30"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
917 Plankton, 5 meters, Station D-2. 43°56'00"N; 86039'30"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
918 Plankton, 15 meters, Station D-2. 43°56'00"N; 86039'30"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
919 Plankton, surface, Station D-4. 43°48tOO"N; 87°03'00"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
920 Plankton, 5 meters, Station D-4. 43°48tOO"N; 87°03tOO"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
921 Plankton, 15 meters, Station D-4. 43°48'00"N; 87°03'00"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
922 Plankton, surface, Station D-5. 43038'40"N; 87°31'00"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
923 Plankton, 5 meters, Station D-5. 43°38'40"N; 87°31'00"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
924 Plankton, 15 meters, Station D-5. 43°38'40"N; 87°31'00"W. Coll:
E. F. Stoermer. 3 April 1966 (500 ml).
925 Plankton, surface, Station E-2. 44°37'00"N; 86°21f42VW. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
926 Plankton, 5 meters. Station E-2. 44°37'00"N; 86°21'42"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
927 Plankton, 15 meters, Station E-2. 44°37'00"N; 86°21'42"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
928 Plankton, surface, Station E-3. 44°34tOO"N; 86°40'00"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
225
-------
929 Plankton, 5 meters, Station E-3. 44°34'00"N; 86°40'00"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
930 Plankton, 15 meters, Station E-3. 44°34'00"N; 86°40fOO"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
931 Plankton, surface, Station E-5. 44025'30"N; 87°10'18"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
932 Plankton, 5 meters, Station E-5. 44°25'30"N; 87°10'18"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
933 Plankton, 15 meters, Station E-5. 44°25'30"N; 87°10'18"W. Coll:
E. F. Stoermer. 6 April 1966 (500 ml).
938 Plankton, surface, Station A-3. 42005'30"N; 86°43'00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
939 Plankton, 5 meters, Station A-3. 43°05'30"N; 86043'00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
940 Plankton, 15 meters, Station A-3. 42°05I30"N; 86043'00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
941 Plankton, surface, Station A-4. 42°03'3Q"N; 87°06'30"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
942 Plankton, 5 meters, Station A-4. 42°03I30"N; 87°06'30"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
943 Plankton, 15 meters, Station A-4. 42°03'30"N; 87°06'30"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
944 Plankton, surface, Station A-6. 41°52'00"N; 87°27'00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
945 Plankton, 5 meters, Station A-6. 41°52'00"N; 87°27I00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
946 Plankton, 15 meters, Station A-6. 41°52rOO"N; 87°27'00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
947 Plankton, surface, Station B-3. 42°24'00"N; 86°35'20"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
948 Plaakton, 5 meters, Station B-3. 42024'00"N; 86°35I20"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
949 Plankton, 15 meters, Station B-3. 42°24'00"N; 86°35f20"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
950 Plankton, surface, Station B-4. 42°23'30"N; 87°01'30"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
951 Plankton, 5 meters, Station B-4. 42°23t30"H; 87°01t30"W. Coll:
C. F. Powers. 25 April 1966 (500ml).
226
-------
952 Plankton, 15 meters, Station B-4. 42°23I30"N; 87°01'30"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
953 Plankton, surface, Station B-6. 42°22'30"N; 87°30'00"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
954 Plankton, 5 meters, Station B-6. 42022'30"N; 87°30'00"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
955 Plankton, 15 meters, Station B-6. 42°22'30"N; 87"30'00"W. Coll:
C. F. Powers. 25 April 1966 (500 ml).
956 Plankton, surface, Station C-3. 42°49I10"N; 86°28'25"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
957 Plankton, 5 meters, Station C-3. 42°49'10"N; 86°28f25"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
958 Plankton, 15 meters, Station C-3. 42°49'10"N; 86°28'25"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
959 Plankton, surface, Station C-5. 42°49'00"N; 86°50'00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
960 Plankton, 5 meters, Station C-5. 42°49'00"N; 86°50tOO"W. Coll:
E. F. Stoermer. 28 April 1966 (500ml).
961 Plankton, 15 meters, Station C-5. 42°49'00"N; 86°50'00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
962 Plankton, surface, Station C-7. 42°47'30"N; 87°34'30"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
963 Plankton, 5 meters, Station C-7. 42047'30HN; 87°34I30"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
964 Plankton, 15 meters, Station C-7. 42°47'30"N; 87°34'30"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
965 Plankton, surface, Station D-2. 43056'00"N; 86°39'30"W. Coll.
E. F. Stoermer. 28 April 1966 (500 ml).
966 Plankton, 5 meters, Station DT2. 43°56'00"N; 86039'30"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
967 Plankton, 15 meters, Station D-2. 43°56'00"N; 86°39'30"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
968 Plankton, surface, Station D-4. 43°48'00"N; 87°03'00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
969 Plankton, 5 meters, Station D-4. 43048'00"N; 87°03!00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
970 Plankton, 15 meters, Station D-4. 43°48'00"N; 87°03'00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
227
-------
971 Plankton, surface, Station D-5. 43°38'40"N; 87°31'00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
972 Plankton, 5 meters, Station D-5. 43°38'40"N; 87°31'00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
973 Plankton, 15 meters, Station D-5. 43°38'40"N; 87031'00"W. Coll:
E. F. Stoermer. 28 April 1966 (500 ml).
974 Plankton, surface, Station E-2. 44°37I00"N; 86°21I42"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
975 Plankton, 5 meters, Station E-2. 44°37'00"N; 86°21'42"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
976 Plankton, 15 meters, Station E-2. 44037'00MN; 86°21'42"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
977 Plankton, surface, Station E-3. 44°34'00"N; 86°40'00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
978 Plankton, 5 meters, Station E-3. 44°34'00"N; 86°40'00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
979 Plankton, 15 meters, Station E-3. 44°34'00"N; 86°40I00"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
980 Plankton, surface, Station E-5. 44°25f30"N; 87°10f18"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
981 Plankton, 5 meters, Station E-5. 44°25f30"N; 87°10'18"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
982 Plankton, 15 meters, Station E-5. 44025'30"N; 87°10'18"W. Coll:
E. F. Stoermer. 26 April 1966 (500 ml).
983 Plankton, surface, Station A-3. 42°05130"N; 86°43'00"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
984 Plankton, 5 meters, Station A-3. 42°05f30"N; 86°43'00"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
985 Plankton, 15 meters, Station A-3. 42°05'30"N; 86°43'00"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
986 Plankton, surface, Station A-4. 42°03I30"N; 87°06'30"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
987 Plankton, 5 meters, Station A-4. 42°03'30"N; 87°06'30"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
988 Plankton, 15 meters, Station A-4. 42°03t30"N; 87°06'30"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
989 Plankton, surface, Station A-6. 41°52'00"N; 87°27I00"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
228
-------
990 Pla;kt°^ 5 ^ters, Station A-6. 4l°52'00"N; 87°27'00"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
991 J-lankton, 15 meters, Station A-6. 4l°52'00"N; 87°27'00"W. Coll:
E. F. Stoermer. 15 May 1966 (500 ml).
992 Plankton, surface, Station B-3. 42024'00"N; 86°35'20"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
993 Plankton, 5 meters, Station B-3. 42°24'00"N; 86°35'20"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
994 Plankton, 15 meters, Station B-3. 42024'00"N; 86°35'20"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
995 Plankton, surface, Station B-4. 42°23'30"N; 87°01'30"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
996 Plankton, 5 meters, Station B-4. 42°23'30"N; 87°01'30"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
997 Plankton, 15 meters, Station B-4. 42°23f30"N; 87°01'30"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
998 Plankton, surface, Station B-6. 42°22f30"N; 87°30'00"W. Coll:
C. F. Powers. 16 May 1966 (500ml).
999 Plankton, 5 meters, Station B-6. 42°22'30"N; 87°30'00"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
1000 Plankton, 15 meters, Station B-6. 42°22'30"N; 87°30'00"W. Coll:
C. F. Powers. 16 May 1966 (500 ml).
1001 Plankton, surface, Station C-3. 42°49'10"N; 86°28'25"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1002 Plankton, 5 meters, Station C-3. 42°49'10"N; 86°28'25"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1003 Plankton, 15 meters, Station C-3. 42°49'10"N; 86e28'25"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1004 Plankton, surface, Station C-5. 42°49'00"N; 86°50'00"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1005 Plankton, 5 meter, Station C-5. 42°49'00"N; 86°50'00"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1006 Plankton, 15 meters, Station C-5. 42°49'00"N; 86°50'00"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1007 Plankton, surface, Station C-7. 42°47'30"N; 87°34'30"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1008 Plankton, 5 meters, Station C-7. 42°47'30"N; 87°34f30"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
229
-------
1009 Plankton, 15 meters, Station C-7. 42°47'30"N; 87°34'30"W. Coll:
E. F. Stoermer. 16 May 1966 (500 ml).
1010 Plankton, surface, Station D-2. 43°56'00"N; 86039'30"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1011 Plankton, 5 meters, Station D-2. 43°56tOO"N; 86°39'30"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1012 Plankton, 15 meters, Station D-2. 43056'00"N; 86°39I30"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1013 Plankton, surface, Station D-4. 43°48'00"N; 87°03'00"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1014 Plankton, 5 meters, Station D-4. 43°48'00"N; 87°03'00"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1015 Plankton, 15 meters, Station D-4. 43°48'00"N; 87°03'00"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1016 Plankton, surface, Station D-5. 43-l'38t40"N; 87031'00"W. Coll:
E. F. Stoermer. 17 May 1966 (500 mi).
1017 Plankton, 5 meters, Station D-5. «°38I40IIN; 87°31'00"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1018 Plankton, 15 meters, Station D-5. 43°38f40"N; 87°31I00"W. Coll:
E. F. Stoermer. 17 May 1966 (500 ml).
1019 Plankton, surface, Station E-2. 44°37'00"N; 86°21'42"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1020 Plankton, 5 meters, Station E-2. 44°37'00"N; 86021'42"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1021 Plankton, 15 meters, Station E-2. 44°37'00"N; 86°21'42"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1022 Plankton, surface, Station E-3. 44034'00"N; 86°40'00"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1023 Plankton, 5 meters, Station E-3. 44°34'00"N; 86°40'00"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1024 Plankton, 15 meters, Station E-3. 44°34'00"N; 86°40'00"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1025 Plankton, surface, Station E-5. 44°25'30"N; 87°10'18"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1026 Plankton, 5 meters, Station E-5. 44°25130"N; 87°10'18"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
1027 Plankton, 15 meters, Station E-5. 44°25I30"N; 87°10'18"W. Coll:
E. F. Stoermer. 20 May 1966 (500 ml).
230
-------
1033 Plankton (#25 net), Garden Creek, near outlet in town of Garden,
Delta County, Michigan. Sec. 17, R18W, Twp 39N. Coll: E. F. Stoermer.
20 June 1966.
1035 Plankton near shore (#25 net), fishing access site near town of
Garden, Delta County, Michigan. Sec. 18, R18W, T39N. Coll: E. F.
Stoermer. 20 June 1966.
1042 Shore plankton (#25 net), Sack Bay, Delta County, Michigan. Sec. 30,
R19W, T38N. Coll: E. F. Stoermer. 20 June 1966.
1044 Shore plankton (#25 net), Sand Bay, near Fayette State Park, Delta
County, Michigan. Sec. 9, R19W, T38N. Coll: E. F. Stoermer. 20
June 1966.
1046 Shore plankton (#25 net), Fayette Harbor, Fayette State Park, Delta
County, Michigan. Sec. 4, R19W, T38N. Coll: E. F. Stoermer. 20
June 1966.
1056 Plankton, Harbor of Manistique, Schoolcraft County, Michigan. Sec. 12,
R16W, T41. Considerable wood detritus, depauperate algal flora. Coll:
E. F. Stoermer. 21 June 1966.
1060 Plankton - from ferry dock, St. Ignace, Mackinac County, Michigan.
Sec. 18, R3W, T40N. Coll: E. F. Stoermer. 21 June 1966.
1092 Shore plankton from harbor, Cross Village. Sec. 33, R6W, T38N. Emmet
County, Michigan. Coll: E*. F. Stoermer. 23 June 1966.
1094 Shore plankton, City Park, Harbor Springs. Sec. 13, R6W, T35N. Emmet
County, Michigan. Coll: E. F. Stoermer. 23 June 1966.
1095 Shore plankton, tile outlet just east of "Irish Marina." Sec. 18, R5W,
T35N. Harbor Springs, Emmet County, Michigan. Coll: E. F. Stoermer.
23 June 1966.
1096 Plankton, Petoskey Harbor,, Sec. 31, R5W, T35N. Emmet County, Michigan.
Coll: E. F. Stoermer. 23 June 1966.
1100 Plankton ship channel, Charlevoix. Sec. 27, R8W, T34N. Charlevoix
County, Michigan. Coll: E. F. Stoermer. 23 June 1966.
1102 Plankton, Lake Charlevoix, Charlevoix City Dock. Sec. 26, R8W, T34S.
Charlevoix County, Michigan. Coll: E. F. Stoermer. 23 June 1966.
1105 Plankton, river side of breakwater, Elk Rapids. Sec. 20, R9W, T29N.
Antrim County, Michigan. Coll: E. F. Stoermer. 23 June 1966.
1108 Shore plankton, harbor of Traverse City. Sec. 6, R10W, T27N. Grand
Traverse County, Michigan. Coll: E. F. Stoermer. 23 June 1966.
1114 Plankton, Lake Michigan, 100 yds from confluence of Platte River.
Sec. 20, R15W, T27N. Benzie State Park, Benzie County, Michigan. Coll:
E. F. Stoermer. 23 June 1966.
231
-------
1116 Plankton, Platte River, at confluence with Lake Michigan. Sec. 20,
R15W, T27N. Benzie State Park, Benzie County, Michigan. Coll: E. F.
Stoermer. 23 June 1966.
1121 Plankton, Lake Michigan just outside Frankfort breakwater. Sec. 28,
R16W, T26N. Benzie County, Michigan. Coll: E. F. Stoermer. 24 June 1966.
1122 Plankton, Frankfort Harbor, just inside breakwater. Sec. 28, R16W, T26N.
Benzie County, Michigan. Coll: E. F. Stoermer. 24 June 1966.
1125 Plankton just outside breakwater, Manistee. Sec. 3, R17W, T21N. Manis-
tee County, Michigan. Coll: E. F. Stoermer. 24 June 1966.
1126 Plankton just inside breakwater, Manistee. Sec. 3, R17W, T21N. Manistee
County, Michigan. Melosira dominant. Coll: E. F. Stoermer. 24 June 1966.
1128 Plankton inside harbor, Ludington. Sec. 16, R18W, T18N. Mason County,
Michigan. Coll: E. F. Stoermer. 24 June 1966.
1130 Plankton just outside harbor, Ludington. Sec. 16, R18W, T18N. Mason
County, Michigan. Coll: E. F. Stoermer. 24 June 1966.
1132 Shore plankton shallow water in Muskegon Lake, pier across from State
Park office. Sec. 22, R17W, T10N. Muskegon State Park, Muskegon County,
Michigan. Coll: E. F. Stoermer. 25 June 1966.
1135 Plankton, Muskegon Lake, just inside ship channel. Sec. 28, R17W, T10N.
Muskegon County, Michigan. Coll: E. F. Stoermer. 25 June 1966.
1139 Plankton, inside Muskegon north piers. Sec. 29, R17W, T10N, Muskegon
County, Michigan. Coll: E. F. Stoermer. 25 June 1966.
1141 Plankton, outside Muskegon north pier. Sec. 29, R17W, T10N. Muskegon
County, Michigan. Coll: E. F. Stoermer. 25 June 1966.
1142 Plankton, 10 yds off campground beach, Muskegon State Park. Sec. 17,
R17W, T10N. Muskegon County, Michigan. Coll: E. F. Stoermer. 25 June
1966.
1143 Plankton 100 yds off campground beach, Muskegon State Park. Sec. 17,
R17W, T10N. Muskegon County, Michigan. Coll: E. F. Stoermer. 25 June
1966.
1144 Surface #20 net tow, Lake Michigan. Station GA-la. 41°38.4'N; 87°19.0'W.
Coll: A. Strong. 19 May 1966.
1145 Surface #20 net tow, Lake Michigan. Station GA-lb. 41°38.4'N; 87°19.0'W.
Coll: A. Strong. 19 May 1966.
1164 Vertical #20 net tow, 55ft depth. Sleeping Bear Bay, Lake Michigan.
Coll: Robert Anderson. 21 June 1966.
1192 Surface #20 net tow. Station PM-1. 45°46f30"N; 85°08I45"W. Lake
Michigan. Coll: E. F. Stoermer. 21 Sept. 1966.
232
-------
1193 Surface #20 net tow Station PM-2. 45'24.0'N; 85°15.0'W. Lake Michi-
gan. Mostly zooplankton. Coll: E. F. Stoermer. 21 August 1966.
1194 Surface #20 net tow. Station PM-3. 45°17.2'N; 85°55.0'W. Lake Michi-
gan. Coll: E. F. Stoermer. 21 August 1966.
1195 Surface #20 net tow. Station PM-4. 45°01I18"N; 85°55'00"W. Lake
Michigan. Coll: E. F. Stoermer. 22 August 1966.
1196 Vertical #20 net tow. Station MP-2. 44057'48"N; 86°03'06"W. Lake
Michigan. Coll: E. F. Stoermer. 22 August 1966.
1197 Vertical #20 net tow. Station AEC-1. 42°36.01N; 86°59.0'W. Lake Michi-
gan. Coll: E. F. Stoermer. 19 Sept. 1966.
1198 Vertical #20 net tow. Station AEC-2. 42°46.5'N; 87°02.5'W. Lake Michi-
gan. Coll: E. F. Stoermer. 19 Sept. 1966.
1199 Vertical #20 net tow. Station AEC-3. 43°18.5'N; 86°42.5'W. Lake Michi-
gan. Coll: E. F. Stoermer. 20 Sept. 1966.
1200 Vertical #20 net tow. Station AEC-4. 43°54.4'N; 86°49.0'W. Lake Michi-
gan. Coll: E. F. Stoermer. 20 Sept. 1966.
1201 Vertical #20 net tow. Station AEC-5. 44008.7'N; 86°42.6'W. Lake Michi-
gan. Coll: E. F. Stoermer. 21 Sept. 1966.
1202 Vertical #20 net tow. Station AEC-6. 44°20.0'N; 86°43.1'W. Lake Michi-
gan. Coll: E. F. Stoermer. 21 Sept. 1966.
1203 Vertical #20 net tow. Station AEC-7. 44°28.7'N; 86°43.1'W. Lake Michi-
gan. Coll: E. F. Stoermer. 21 Sept. 1966.
1204 Vertical #20 net haul. Station A-l. 42°06'30"N; 86°32'00"W. Lake
Michigan. Coll: J. Ayers. 26 Sept. 1966.
1205 Vertical #20 net haul. Station A-2. 42006'00"N; 86°37'00"W. Lake
Michigan. Coll: J. Ayers. 26 Sept. 1966.
1206 Vertical #20 net haul. Station A-3. 42°05'30"N; 86°43'00"W. Lake
Michigan. Coll: J. Ayers. 27 Sept. 1966.
1207 Vertical #20 net haul. Station A-4. 42°03'30"N; 87°06I30"W. Lake
Michigan. Coll: J. Ayers. 27 Sept. 1966.
1208 Vertical #20 net haul. Station A-5. 41°57fOO"N; 87°18'30"W. Lake
Michigan. Coll: J. Ayers. 27 Sept. 1966.
1209 Vertical #20 net haul, Station A-6. 41°52»00"N; 87°27'00"W. Lake
Michigan. Coll: J. Ayers. 27 Sept. 1966.
1210 Vertical #20 net haul. Station C-l. 42049'40"N; 86°14f50"W. Lake
Michigan. Coll: J. Ayers. 26 Sept. 1966.
1211 Vertical #20 net haul. Station C-2. 42°49f40"N; 86°18'25"W. Lake
Michigan. Coll: J. Ayers. 26 Sept. 1966.
233
-------
1212 Vertical #20 net haul. Station C-3. 42049'10"N; 86028'25"W. Lake
Michigan. Coll: J. Ayers. 26 Sept. 1966 (Extremely sparse phyto-
plankton).
1213 Vertical #20 net haul. Station C-4. 42048'50"N; 86°41t30"W. Lake
Michigan. Coll: J. Ayers. 28 Sept. 1966.
1214 Vertical #20 net haul. Station C-5. 42049'00"N; 86°50'00"W. Lake
Michigan. Coll: J. Ayers. 28 Sept. 1966.
1215 Vertical #20 net haul. Station C-6. 42°47'40"N; 87°26'50"W. Lake
Michigan. Coll: J. Ayers. 28 Sept. 1966.
1216 Vertical #20 net haul. Station C-7. 42°47'30"N; 87°34t30"W, Lake
Michigan. Coll: J. Ayers. 28 Sept. 1966.
1217 Vertical #20 net haul. Station E-l. 44037'30"N; 86°1S'12"W. Lake
Michigan. Coll: J. Ayers. 2 Oct. 1966.
1218 Vertical #20 net haul. Station E-2. 44°37'00"N; 86°21'42"W. Lake
Michigan. Coll: J. Ayers. 2 Oct. 1966.
1219 Vertical #20 net haul. Station E-3. 44°34'00"N; 86°40I00"W. Lake
Michigan. Coll: J. Ayers. 2 Oct. 1966.
1220 Vertical #20 net haul. Station E-4. 44°30'18"N; Se^S'lS'^. Lake
Michigan. Coll: J. Ayers. 2 Oct. 1966.
1221 Vertical #20 net haul. Station #-5. 44°25'30"N; 87°10t18"W. Lake
Michigan. Coll: J. Ayers. 1 Oct. 1966.
1222 Vertical #20 net haul. Station E-6. 44°27'48"N; 87°26'25"W. Lake
Michigan. Coll: J. Ayers. 1 Oct. 1966.
1223 #20 net sample, vertical haul, 83 m., Station B-3. 42024'00"N;
86°35'30"W. Coll: C. F. Powers. 18 May 1964.
26 spp. 63995 spec. H=0.848 R=0.740
1224 #20 net sample, vertical haul, 141 m., Station B-4. 42°23'30"N;
87°01t30"W. Coll: C. F. Powers. 18 May 1964.
33 spp. 51005 spec. H=0.721 R=0.794
1225 #20 net sample, vertical haul, Station C-6. 42°47'40"N; 87°26'50"W.
Coll: C. F. Powers. 15 May 1964.
40 spp. 25510 spec. H=1.368 R=0.629
1226 #20 net sample, vertical haul, Station C-7. 42°47'30"N; 87°34t30"W.
Coll: C. F. Powers. 16 May 1964.
42 spp. 26280 spec. H=1.520 R=0.593
1227 #20 net sample, vertical haul, Station C^2. 43°12'00"N; 86031'00MW.
Coll: C. F. Powers. 13 May 1964.
40 spp. 91190 spec. H*=1.264 R=0.657
234
-------
1228
1229
1230a
1231
1232
1233
1234a
1235a
1236
1237a
1238
1239
1240
1241
#20 net sample, vertical haul, Station D-2. 43°56'00"N; 86°39'30"W.
Coll: C. F. Powers. 14 May 1964.
46 spp, 51379 spec. H=1.243 R-0.675
#20 net sample, vertical haul, Station D-5. 43°38t40MN; 87031'00"W.
Coll: C. F. Powers. 14 May 1964.
52 spp. 47291 spec, H=1.638 R=0.585
#20 net sample, vertical haul, Station E-2. 44°37fOO"N; 86°21t42"W.
Coll: C. F. Powers. 16 May 1964.
50 spp. 33745 spec. H=1.416 R=0.638
#20 net sample, vertical haul, Station E-3. 44°34tOO"N; 86°40'00"W.
Coll: C. F. Powers. 16 May 1964.
51 spp. 40884 spec. H=1.225 R=0.688
#20 net sample, vertical haul, Station E-5. 44°25'30"N; 87°10f18"W.
Coll: C. F. Powers. 16 May 1964.
59 spp. 57498 spec. H=1.659 R=0.593
#20 net sample, vertical haul, Station B-3. 42°24'00"N; 86°35'30"W.
Coll: C. F. Powers. 5 June 1964.
37 spp. 41991 spec. H=1.673 R=0.537
#20 net sample, vertical haul, Station B-3. 42°24'001IN; 86°35'30"W.
Coll: C. F. Powers. 18 June 1964.
38 spp. 35568 spec. H=1.574 R=0.567
#20 net sample, vertical haul, Station C-7. 42°47'30"N; 87°34'30"W.
Coll: C. F. Powers. 16 June 1964.
35 spp. 35407 spec. H=1.446 R=0.593
#20 net sample, vertical haul, Station^'-!. 43°08'00"N; 86°23'00"W.
Coll: C. F. Powers. 8 June 1964.
64 spp. 57132 spec. H=1.668 R=0.599
#20 net sample, vertical haul, Station C'-2. 43°12'00"N; 86°31fOO"W.
Coll: C. F. Powers. 8 June 1964.
49 spp. 38790 spec. H=1.674 R=0.570
#20 net sample, vertical haul, Station D-3. 43054'00"N; 86°51'30"W.
Coll: C. F. Powers. 11 June 1964.
44 spp. 50000 spec. H=0.972 R=0.743
#20 net sample, vertical haul, Station D-4. 43°48'00"N; 87°03'00"W.
Coll: C. F. Powers. 11 June 1964.
39 spp. 86175 spec. H=1.240 R=0.661
#20 net sample, vertical haul,. Station D-6. 43°44'00"N; 87°38'00"W.
Coll: C. F. Powers. 10 June 1964.
83 spp. 65191 spec. H=1.398 R=0.684
#20 net sample, vertical haul, Station E-2. 44°37'00"N; 86°21'42"W.
Coll: C. F. Powers. 13 June 1964.
56 spp. 67634 spec. H=1.418 R=0.648
235
-------
1242 #20 net sample, vertical haul, Station E-3. 44°34'00"N; 86°40'00"W.
Coll: C. F. Powers. 13 June 1964.
44 spp. 66726 spec. H=0.629 R=0.834
1243 #20 net sample, vertical haul, Station E-6. 44827'48"N; 87026'25"W.
Coll: C. F. Powers. 13 June 1964.
78 spp. 47892 spec. H=1.655 R=0.620
1244 #20 net sample, vertical haul, Station F-l. 45°21'45"N; 85°19'45"W.
Coll: C. F. Powers. 11 June 1964.
89 spp. 91203 spec. H=1.500 R=0.666
1245a #20 net sample, vertical haul, Station F-2. 45°28'30"N; 85026'00"W.
Coll: C. F. Powers. 11 June 1964
68 spp. 28922 spec. H=1.490 R=0.647
1246a #20 net sample, vertical haul, Station F-3. 45°33I40"N; 85°3Q'W\}.
Coll: C. F. Powers. 11 June 1964.
54 spp. 16733 spec. H=1.554 R=0.610
1247a #20 net sample, vertical haul, Station B-3. 42°24'00"N; 86°35'30"W.
Coll: C. F. Powers. 14 July 1964.
28 spp. 23427 spec. H=1.572 R-0.528
1248 #20 net sample, vertical haul, Station B-3. 42°24'00"N; 86035f30"W.
Coll: C. F. Powers. 24 July 1964.
34 spp. 50748 spec. H=1.626 R=0.539
1249 #20 net sample, vertical haul, Station C-3. 42°49'10"N; 86°28'25"W.
Coll: C. F. Powers. 8 July 1964.
27 spp. 36820 spec. H=1.520 R=0.539
1250a #20 net sample, vertical haul, Station C-6. 42°47'40"N; 87°26I50"W.
Coll: C. F. Powers. 10 July 1964.
42 spp. 24325 spec. H=1.838 R=0.508
1251 #20 net sample, vertical haul, Station C-7. 42°47'30"N; 87°34'30"W.
Coll: C. F. Powers. 16 July 1964.
37 spp. 34518 spec. H=1.422 R=0.606
1252 #20 net sample, vertical haul, Station C'-l. 43°08'00"N; 86°23'00"W.
Coll: C. F. Powers. 16 July 1964.
55 spp. 35850 spec. H=1.682 R=0.580
1253 #20 net sample, vertical haul, Station C'-2. 43°12'00"N; 86°31'00"W.
Coll: C. F. Powers. 16 July 1964.
43 spp. 43816 spec. H=1.647 R=0.562
1254 #20 net sample, vertical haul, Station D-2. 43°56fOO"N; 86P39'30"W.
Coll: C. F. Powers. 15 July 1964.
56 spp. 52210 spec. H=1.722 R=0.572
1255 #20 net sample, vertical haul, Station D-5. 43°38'40"N; 87031'00"W.
Coll: C. F. Powers. 15 July 1964.
55 spp. 38962 spec. H=2.048 R=0.489
236
-------
1256 #20 net sample, vertical haul, Station E-2. 44°37'00"N; 86°21'42"W.
Coll: C. F. Powers. 14 July 1964.
73 spp. 54588 spec. H=1.533 R=0.638
1257 #20 net sample, vertical haul, Station E-3. 44°34>00"N; 86°40'00"W.
Coll: C. F. Powers. 14 July 1964.
63 spp. 41795 spec. H=1.464 R-0.647
1258 #20 net sample, vertical haul, Station F-l. 45°21'45"N; 85019'45"W.
Coll: C. F. Powers. 6 July 1964.
117 spp. 42377 spec. H-1.984 R=0.583
1259 #20 net sample, vertical haul, Station F-2. 45°28'30"N; 85°26'00"W.
Coll: C. F. Powers. 6 July 1964.
78 spp. 32272 spec. H=1.988 R=0.544
1260 #20 net sample, vertical haul, Station F-3. 45°33'40"N; 85°30'45"W.
Coll: C. F. Powers. 6 July 1964.
89 spp. 52357 spec. H=2.012 R=0.552
1261 #20 net sample, vertical haul, Station B-3. 42°24'00"N; 86°35'30"W.
Coll: C. F. Powers. 2 August 1964.
31 spp. 50956 spec. H=1.278 R=0.628
1262 #20 net sample, vertical haul, Station B-3. 42°24'00"N; 8603513Q"V.
Coll: C. F. Powers. 17 August 1964.
31 spp. 47620 spec. H=1.254 R=0.635
1263 #20 net sample, vertical haul, Station C-7. 42°47'30"N; 87°34'30"W.
Coll: C. F. Powers. 15 August 1964.
20 spp. 24980 spec. H=1.214 R=0.595
1264 #20 net sample, vertical haul, Station C'-l. 43°08'00"N; 86023'00"W.
Coll: C. F. Powers. 10 August 1964.
74 spp. 51792 spec. H=1.705 R=0.604
1265 #20 net sample, vertical haul, Station C'-2. 43°12'00"N; 86°31fOO"W.
Coll: C. F. Powers. 10 August 1964.
52 spp. 44733 spec. H=1.571 R=0.602
1266 #20 net sample, vertical haul, Station D-3. 43°54'00"N; 86°51'30"W.
Coll: C. F. Powers. 18 August 1964.
44 spp. 28508 spec. H-2.259 R=0.403
1267 #20 net sample, vertical haul, Station D-6. 43°44'00"N; 87°38'00"W.
Coll: C. F. Powers. 18 August 1964.
38 spp. 46260 spec. H=1.289 R=0.646
1268 #20 net sample, vertical haul, Station E-2. 44°37'00"N; 86°21'42"W.
Coll: C. F. Powers. 15 August 1964.
82 spp. 36556 spec. H=2.081 R=0.528
1269 #20 net sample, vertical haul, Station E-3. 44°34'00"N; 86°40'00"W.
Coll: C. F. Powers. 15 August 1964.
50 spp. 36486 spec. H=2.007 R=0.487
237
-------
1270
1271a
1272
1273a
1274a
1275
1276a
1277
1278a
1279a
1280a
1281a
1282
1283a
#20 net sample, vertical haul, Station F-l. 45021'45"N; 85°19'45"W.
Coll: C. F. Powers. 10 August 1964.
84 spp. 36725 spec. H=1.817 R=0.590
#20 net sample, vertical haul, Station C-7. 42°47'30"N; 87°34'30"W.
Coll: C. F. Powers. 22 Sept. 1964.
39 spp. 15317 spec. H=0.984 R=0.731
#20 net sample, vertical haul, Station C'-l. 43°08'00"N; 86°23'00"W.
Coll: C. F. Powers. 10 Sept. 1964.
57 spp. 24363 spec. H=1.732 R=0.572
#20 net sample, vertical haul, Station C'-2. 43°12'00"N; 86°31'00"W.
Coll: C. F. Powers. 10 Sept. 1964.
39 spp. 18599 spec. H=1.703 R=0.535
#20 net sample, vertical haul, Station D-l. 43°57'00"N; 86033'00"W.
Coll: C. F. Powers. 17 Sept. 1964.
49 spp. 21313 spec. H=1.700 R=0.563
#20 net sample, vertical haul, Station D-2. 43°56'00"N; 86°39f30"W.
Coll: C. F. Powers. 17 Sept. 1964.
52 spp. 15501 spec. H=1.770 R=0.552
#20 net sample, vertical haul, Station D-3. 43°54'00"N; 86°51'30"W.
Coll: C. F. Powers. 18 Sept. 1964.
28 spp. 8948 spec. H=1.860 R=0.442
#20 net sample, vertical haul, Station D-4. 43°48'00"N; 87C03'00"W.
Coll: C. F. Powers. 18 Sept. 1964.
29 spp. 16138 spec. H=1.446 R=0.571
#20 net sample, vertical haul, Station D-6. 43°44fOO"N; 87°38'00"W.
Coll: C. F. Powers. 18 Sept. 1964.
44 spp. 26019 spec. H=1.388 R=0.633
#20 net sample, vertical haul, Station E-l. 44037f30"N; 86018'12"W.
Coll: C. F. Powers. 16 Sept. 1964.
109 spp. 25467 spec. H=1.832 RO.610
#20 net sample, vertical haul, Station E-2. 44°37'00"N; 86°21'42"W.
Coll: C. F. Powers. 16 Sept. 1964.
42 spp. 14689 spec. H=1.558 R=0.583
#20 net sample, vertical haul, Station E-3. 44°34'00"N; 86°40tOO"W.
Coll: C. F. Powers. 16 Sept. 1964.
40 spp. 25483 spec. H=1.951 R=0.471
#20 net sample, vertical haul, Station E-4. 44°30I18"N; 86°55'18"W.
Coll: C. F. Powers. 16 Sept. 1964.
34 spp. 9025 spec. H=1.772 R=0.497
#20 net sample, vertical haul, Station E-5. 44°25'30"N; 87°10'18"W.
Coll: C. F. Powers. 16 Sept. 1964.
38 spp. 16314 spec. H=2'.064 R=0.432
238
-------
1284a
1285a
1286a
1287a
1288a
1289
1290a
1291a
1292a
1293a
1294a
1295
1296
1297a
#20 net sample, vertical haul, Station E-6. 44°27'48"N- 87°26'25"W
Coll: C. F. Powers. 17 Sept. 1964. '
77 spp. 31473 spec.
H-1.900
R=0.563
#20 net sample, vertical haul, Station F-l. 45°21'45"N- 85°19'45"W
Coll: C. F. Powers. 15 Sept. 1964.
151 spp, 17171 Spec. H=2.374 R=0.527
#20 net sample, vertical haul, Station F-2. 45°28'30"N; 85°26'00"W.
Coll: C. F. Powers. 15 Sept. 1964.
44 spp. 9136 spec. H=1.864 R=0.507
#20 net sample, vertical haul, Station F-3. 45°33'40"N; 85°30'45"W.
Coll: C. F. Powers. 15 Sept. 1964.
48 spp. 19984 spec. H=1.821 R=0.530
#20 net sample, vertical haul, Station B-3. 42°24'00"N; 86°35I30"W.
Coll: C. F. Powers. 15 Oct. 1964.
35 spp. 45938 spec. H=1.406 R=0.605
#20 net sample, vertical haul. Station C-7. 42°47'30"N; 87°34'30"W.
Coll: C. F. Powers. 14 Oct. 1964.
40 spp. 22741 spec. H-1,343 R=0.636
#20 net sample, vertical haul, Station C'-l. 43°08'00"N; 86°23'00"W.
Coll: C. F. Powers. 16 Oct. 1964.
32 spp. 26385 spec. H=1.331 R=0.616
#20 net sample, vertical haul, Station C'-2. 43°12T00"N; 86°31'00"W.
Coll: C. F. Powers. 16 Oct. 1964.
29 spp. 40878 spec. H=1.340 R=0.602
#20 net sample, vertical haul, Station D-l. 43°57fOO"N; 86°33'00"W.
Coll: C. F. Powers. 15 Oct. 1964.
30 spp. 26832 spec. H=1.381 R=0.594
#20 net sample, vertical haul, Station D-2. 43°56'00"N; 86°39'30"W.
Coll: C. F. Powers. 15 Oct. 1964.
34 spp. 21202 spec. H=1.408 R=0.601
#20 net sample, vertical haul, Station D-3. 43°54'00"N; 86051'30"W.
Coll: C. F. Powers. 15 Oct. 1964.
37 spp. 30337 spec. H=1.564 R=0.567
#20 net sample, vertical haul, Station D-4. 43°48'00"N; 87°03'00"W.
Coll: C. F. Powers. 15 Oct. 1964.
33 spp. 16818 spec. H=1.605 R=0.541
#20 net sample, vertical haul, Station D-5. 43°38'40"N; 87°31'00"W.
Coll: C. F. Powers. 14 Oct. 1964.
31 spp. 25417 spec. H=1.306 R=0.620
#20 net sample, vertical haul, Station D-6. 43°44'00"N; 87°38'00"W.
Coll: C. F. Powers. 14 Oct. 1964.
60 spp. 52522 spec. H=1.512 R=0.631
239
-------
1298 #20 net sample, vertical haul, Station*E-l. 44°37I30"N; 86°18'12'W.
Coll: C. F. Powers. 12 Oct. 1964.
48 spp. 37136 spec. H=1.461 R=0.622
1299a #20 net sample, vertical haul, Station E-2. 44°37'00"N; 86°21'42"W.
Coll: C. F. Powers. 12 Oct. 1964.
50 spp. 31830 spec. H=1.677 R=0.571
1300 #20 net sample, vertical haul, Station E-3. 44°34'00"N; 86°40'00"W.
Coll: C. F. Powers. 13 Oct. 1964.
61 spp. 27935 spec. H=2.000 R=0.513
1301a #20 net sample, vertical haul, Station E-4. 44°30'18"N; 86°55'18"W.
Coll: C. F. Powers. 13 Oct. 1964.
46 spp. 22646 spec. H=1.953 R=0.490
1302a #20 net sample, vertical haul, Station E-5. 44025'30"N; 87010'18"W.
Coll: C. F. Powers. 13 Oct. 1964.
61 spp. 24698 spec. H=2.049 R=0.502
1303 #20 net sample, vertical haul, Station E-6. 44°27I4811N; 87°26'25"W.
Coll: C. F. Powers. 13 Oct. 1964.
54 spp. 17866 spec. H=2.097 R=0.474
1304a #20 net sample, vertical haul, Station F-l. 45°21f45"N; 85°19'45"W.
Coll: C. F. Powers. 11 Oct. 1964.
83 spp. 40492 spec. H=1.038 R=0.765
1305a #20 net sample, vertical haul, Station F-2. 45°28I30"N; 85°26'00"W.
Coll: C. F. Powers. 11 Oct. 1964.
74 spp. 57966 spec. H=0.870 R=0.798
1306a #20 net sample, vertical haul, Station F-3. 45°33'40"N; SS'SO^'W.
Coll: C. F. Powers. 11 Oct. 1964.
56 spp. 36078 spec. H=0.998 R=0.752
1307 #20 net sample, vertical haul, Station B-6. 42°22'30"N; 87°30'00"W.
Coll: C. F. Powers. Probably Nov. 1964.
39 spp. 27716 spec. H=1.493 R=0.593
1308a #20 net sample, vertical haul, Station C-7. 42°47'30"N; 87°34f30"W.
Coll: C. F. Powers. 6 Nov. 1964.
42 spp. 32879 spec. H=1.366 R=0.635
1309a #20 net sample, vertical haul, Station C'-l. 43°08'00"N; 86°23'00"W.
Coll: C. F. Powers. 10 Nov. 1964.
35 spp. 62192 spec. H=1.202 R=0.662
1310 #20 net sample, vertical haul, Station C'-2. 43°12'00"N; 86°31'00"W.
Coll: C. F. Powers. 10 Nov. 1964.
32 spp. 44100 spec. H=1.371 R=0.604
1311 #20 net sample, vertical haul, Station D-l. 43°57'00"N; 86°33tOO"W.
Coll: C. F. Powers. 8 Nov. 1964.
41 spp. 38762 spec. H=10362 R=0.633
240
-------
1312
1313
1314a
1315
1316
1317
1318a
1319
1320a
1321
1322a
1323a
1324
1325a
1331
#20 net sample, vertical haul, Station D-2. 43°56'00"N; 86°39'30"W.
Coll: C. F. Powers. 8 Nov. 1964.
33 spp. 32215 spec. H=1.410 R=0.597
#20 net sample, vertical haul, Station D-3. 43°54'00"N; 86°51'30"W.
Coll: C. F. Powers. 9 Nov. 1964.
38 spp. 51800 spec. H=1.493 R=0.590
#20 net sample, vertical haul, Station D-4. 43°48'00"N; 87°03'00"W.
Coll: C. F. Powers. 9 Nov. 1964.
31 spp. 34833 spec. H=1.482 R=0.568
#20 net sample, vertical haul, Station D-5. 43°38I40"N; 87°31fOO"W.
Coll: C. F. Powers. 9 Nov. 1964.
33 spp. 21980 spec. H=1.404 R=0.598
#20 net sample, vertical haul, Station D-6. 43°44fOO"N; 87°38'00"W.
Coll: C. F. Powers. 9 Nov. 1964.
48 spp. 26472 spec. H=1.608 R=0.585
#20 net sample, vertical haul, Station E-l. 44037'30"N; 86°18'12"W.
Coll: C. F. Powers. 6 Nov. 1964.
48 spp. 52228 spec. H=1.394 R=0.640
#20 net sample, vertical haul, Station E-2. 44°37tOO"N; 86°21'42"W.
Coll: C. F. Powers. 7 Nov. 1964.
51 spp. 52563 spec. H=1.544 R=0.607
#20 net sample, vertical haul, Station E-3. 44°34'00"N; 86°40'00"W.
Coll: C. F. Powers. 7 Nov. 1964.
43 spp. 38193 spec. H=1.620 R=0.569
#20 net sample, vertical haul, Station E-4. 44°30f18"N; 86055'18"W.
Coll: C. F. Powers. 7 Nov. 1964.
63 spp. 48350 spec. H=1.646 R=0.603
#20 net sample, vertical haul, Station E-5. 44°25'30"N; 87°10'18"W.
Coll: C. F. Powers. 7 Nov. 1964.
50 spp. 31326 spec. H=1.616 R=0.587
#20 net sample, vertical haul, Station E-6. 44°27'48"N; 87°26'25"W.
Coll: C. F. Powers. 7 Nov. 1964.
57 spp. 30007 spec. H=1.674 R=0.586
#20 net sample, vertical haul, Station F-l. 45°21'45"N; 85°19'45"W.
Coll: C. F. Powers. 6 Nov. 1964.
56 spp. 71750 spec. H=1.152 R=0.714
#20 net sample, vertical haul, Station F-2. 45°28'30"N; 85°26'00"W.
Coll: C. F. Powers. 6 Nov. 1964.
49 spp. 42933 spec. H=1.192 R=0.694
#20 net sample, vertical haul, Station F-3. 45°33'40"N; 85°30'45"W.
Coll: C. F. Powers. 6 Nov. 1964.
33 spp. 39699 spec. H=1.346 R=0.615
Plankton, #20 net vertical haul. Sta. MIL-ID. Milwaukee, Wisconsin.
Coll: J. Ayers. 21 July 1965.
241
-------
1332 Vertical #20 net haul. Sta. MHKE-16. Milwaukee, Wisconsin. Lk. Mich.
Coll: J. Ayers. 23 July 1965.
1333 Oblique #20 net haul. Sta. MIL-KE. Milwaukee, Wisconsin. Lk. Mich.
Coll: J. Ayers. 24 July 1965.
1334 Oblique #20 net haul. Sta. MIL-35. Milwaukee, Wisconsin. Lk. Mich.
Coll: J. Ayers. 27 July 1965.
1335 #20 net oblique haul. Sta. MH-29. Milwaukee, Wisconsin. Lk. Mich.
Coll: J. Ayers. 28 July 1965.
1336 Vertical #20 net haul. Sta. C-3. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: C. F. Powers. 27 Jan. 1967.
41 spp. 51933 spec. H=0.893 R=0.759
1337 Vertical #20 net haul. Sta. C-3. 42049'10"N; 86°28'25"W. Lake Mich.
Coll: C. F. Powers. 2 March 1967.
60 spp. 68039 spec. H=1.884 R=0.540
1338a Vertical #20 net haul. Sta. C-3. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: C. F. Powers. 28 March 1967.
58 spp. 75628 spec. H=2.002 R=0.507
1339 Vertical #20 net haul. Sta. C-5. 42°49'00"N; 86050'00"W. Lake Mich.
Coll: C. F. Powers. 28 March 1967.
52 spp. 32074 spec. H=1.747 R=0.558
1340a Vertical #20 net haul. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: C. F. Powers. 28 March 1967.
67 spp. 137519 spec. H=1.793 R=0.574
1341a Vertical #20 net haul. Sta. A-3-A. 42°05'30"N; 86°43'00"W. Lake Mich.
Coll: E. Dunster. 19 April 1967.
102 spp. 92183 spec. H=1.700 R=0.632
1342 Vertical #20 net haul. Sta. A-4-A. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 19 April 1967.
72 spp. 55413 spec. H=1.930 R=0.549
1343 Vertical #20 net haul. Sta. A-6-A. 41°52'00"N; 87°27'00"W. Lake Mich.
Coll: E. Dunster. 19 April 1967.
77 spp. 143939 spec. H=1.409 R=0.676
1344a Vertical #20 net haul. Sta. C-3-E. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 25 April 1967.
48 spp. 60445 spec. H=1.324 R=0.658
1345a Vertical #20 net haul. Sta. C-5-E. 42°49I00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 25 April 1967.
60 spp. 51303 spec. H=2.073 R=0.494
1346a Vertical #20 net haul. Sta. C-7-E. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 21 April 1967.
76 spp. 74893 spec. H=1.471 R=0.660
242
-------
1347a
1348a
1349
1350a
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
Vertical #20 net haul. Sta. E-2-E. 44037'00"N; 86°21'40"W. Lake Mich.
Coll: E. Dunster. 23 April 1967.
53 spp. 61505 spec. H=1.760 R=0.557
Vertical #20 net haul. Sta. E-5-E. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: E. Dunster. 23 April 1967.
72 spp. 72950 spec. H=1.758 R=0.589
Vertical #20 net haul. Off Chicago—Pierhead, Illinois. CI: 41053.3'N;
87°35.4'W. Lake Mich. Coll: E. Dunster. 19 April 1967.
70 spp. 27838 spec. H=1.752 R=0.588
Surface #20 net tow. Benton Harobr, Michigan. BH: 42°06.9'N; 86°29.7'W.
Lake Mich. Coll: E. Dunster. 19 April 1967.
237 spp. 45401 spec. H=2.572 R=0.530
Surface #20 net tow. Milwaukee entrance, Wisconsin. MI: 43°01f6'N;
87°52.9'W. Lake Mich. Coll: E. Dunster. 21 April 1967.
72 spp. 32225 spec. H=2.123 R=0.504
Surface #20 net tow. Kewaunee Harbor entrance, Wisconsin KW: 44°27.5'N;
87°29.6'W. Lake Mich. Coll: E. Dunster. 21 April 1967.
80 spp. 11642 spec. H=2.635 R=0.399
Surface #20 net tow. Frankfort off piers, Michigan. FR: 44°37.8'N;
86°15.0'W. Lake Mich. Coll: E. Dunster. 23 April 1967.
49 spp. 9480 spec. HKL.876 R=0.518
Surface #20 net tow. Outside, Grand Haven pierheads, Michigan. GH:
43°03.5'N; 86Q15.4'W. Lake Mich. Coll: E. Dunster. 25 April 1967.
133 spp. 57942 spec. H=1.693 R=0.654
Vertical #20 net tow. Sta. #1, off Grand Haven. 43°08.6'N; 86°19.6'W.
Lake Mich. Coll: V. E. Noble. 28 April 1967.
Vertical #20 net tow. Sta. #2, off Grand Haven. 43°08.6'N; 86°19.8'W.
Lake Mich. Coll: V. E. Noble. 28 April 1967.
Vertical #20 net tow. Sta. #3, off Grand Haven. 43°03.8'N; 86°20.0'W.
Lake Mich. Coll: V. E. Noble. 28 April 1967.
Vertical #20 net tow. Sta. #4, off Grand Haven. 43°03.8'N; 86°19.5'W.
Lake Mich. Coll: V. E. Noble. 29 April 1967.
Vertical #20 net tow. Sta. #5, off Grand Haven. 43°03.7'N; 86°18.9'W.
Lake Mich. Coll: V. E. Noble. 29 April 1967.
Vertical #20 net tow. Sta. #6, off Grand Haven. 43°03.7fN; 86°15.9'W.
Lake Mich. Coll: V. E. Noble. 29 April 1967.
Vertical #20 net tow. Sta. #7, off Grand Haven. 43°01.9'N; 86°1606'W.
Lake Mich. Coll: V. E. Noble. 30 April 1967.
Vertical #20 net tow. Sta. #8, off Grand Haven. 43°02.1'N; 86°16.3'W.
Lake Mich. Coll: V. E. Noble. 30 April 1967.
243
-------
1363 Vertical #20 net tow. Sta. #9, off Grand Haven. 43°02.6'N; 86°16.0'W.
Lake Mich. Coll: V. E. Noble. 30 April 1967.
1364 Vertical #20 net tow. Sta. #10, off Grand Haven. 43°02.6'N; 86°15.4'W.
Lake Mich. Coll: V. E. Noble. 30 April 1967.
1365 Vertical #20 net tow. Sta. #11, off Grand Haven. 43°02.5'N; 86°18.0'W.
Lake Mich. Coll: V. E. Noble. 30 April 1967.
1366 Vertical #20 net tow. Inside Grand Haven Piers -A, Mich. Lake Mich.
Coll: V. E. Noble. 29 April 1967.
1367 Vertical #20 net tow. Inside Grand Haven Piers -B, Mich. Lake Mich.
Coll: V. E. Noble. 29 April 1967.
1368a Vertical #20 net haul. Sta. A-3-E. 42°05'30"N; 86043'00"W. Lake Mich.
Coll: E. F. Stoermer. 4 May 1967.
48 spp. 31830 spec. H-1.731 R=0.553
1369 Vertical #20 net haul. Sta. A-4-E. 42°03130"N; 87°06'30"W. Lake Mich.
Coll: E. F. Stoermer. 4 May 1967.
46 spp. 26829 spec. H=1.103 R=0.712
1370 Vertical #20 net haul. Sta. A-6-E. 41°52tOO"N; 87°27'00"W. Lake Mich.
Coll: E. F. Stoermer. 3 May 1967.
53 spp. 43445 spec. H=1.349 R=0.660
1371a Vertical #20 net haul. Sta. C-3-E. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: E. F. Stoermer. 4 May 1967.
40 spp. 43318 spec. H=1.236 R=0.665
1372a Vertical #20 net haul. Sta. C-5-E. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. F. Stoermer. 5 May 1967.
45 spp. 28196 spec. H=1.458 R=0.617
1373 Vertical #20 net haul. Sta. C-7-E. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. F. Stoermer. 5 May 1967.
40 spp. 35058 spec. H=1.011 R=0.726
1374 Vertical #20 net haul. Sta. E-2-E. 44°37'00"N; 86°21'42"W. Lake Mich.
Coll: E. F. Stoermer. 7 May 1967.
59 spp. 33460 spec. H=1.676 R=0.589
1375a Vertical #20 net haul. Sta. E-3-E. 44°34'00"N; 86°40I00"W. Lake Mich.
Coll: E. F. Stoermer. 7 May 1967.
57 spp. 41559 spec. H=1.418 R=0.649
1376 Vertical #20 net haul. Sta. E-5-E. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: E. F. Stoermer. 6 May 1967.
55 spp. 35576 spec. H=1.764 R=0.560
1377a Vertical #20 net haul. Sta. GS-67-1. 44°46.9'N; 86°13.7'W. Lake Mich.
Coll: E. F. Stoermer. 9 May 1967.
39 spp. 25265 spec. H=1.462 R=0.601
244
-------
1378 Vertical #20 net haul. Sta. GS-67-2. 45°00.6N; 85°56.5W. Lake Mich.
Coll: E. F. Stoermer. 9 May 1967.
34 spp. 23781 spec. H=1.693 R=0.520
1379 Vertical #20 net haul. Sta. GS-67-3. 45°04.4N; 85°26.6W. Lake Mich.
Coll: E. F. Stoermer. 9 May 1967.
54 spp. 32312 spec. H=1.748 R=0.562
1380a Vertical #20 net haul. Sta. GS-67-4. 45°25.2N; 85°19.0W. Lake Mich.
Coll: E. F. Stoermer. 9 May 1967.
63 spp. 59470 spec. H=1.872 R=0.548
1381a Vertical #20 net haul. Sta. GS-67-5. 45°30.5N; 85°23.5W. Lake Mich.
Coll: E. F. Stoermer. 10 May 1967.
55 spp. 41926 spec. H=1.783 R=0.555
1382 Vertical #20 net haul. Sta. GS-67-6. 45°33.0N; 85°34.5W. Lake Mich.
Coll: E. F. Stoermer. 10 May 1967.
64 spp. 36026 spec. H-1.553 R=0.626
1383 Vertical #20 net haul. Sta. GS-67-7. 45°34.5N; 85°41.2W. Lake Mich.
Coll: E. F. Stoermer. 10 May 1967.
61 spp. 37408 spec. H=10855 R=0.549
1384 Vertical #20 net haul. Sta. GS-67-8. 45°44.7N; 85°46.5W. Lake Mich.
Coll: E. F. Stoermer. 10 May 1967.
67 spp. 54095 spec. H=1.651 R=0.607
1385 Vertical #20 net haul. Sta. GS-67-9. 45°54.6N; 86°11.5W. Lake Mich.
Coll: E. F. Stoermer. 10 May 1967.
50 spp. 42471 spec. H=1.660 R=0.576
1386 Vertical #20 net haul. Sta. GS-67-10. 45°34.0N; 86°25.7W. Lake Mich.
Coll: E. F. Stoermer. 12 May 1967.
62 spp. 34810 spec. H=1.614 R=0.609
1387 Vertical #20 net haul. Sta. GS-67-11. 45°31.7N; 86°41.4W. Lake Mich.
Coll: E. F. Stoermer. 12 May 1967.
106 spp. 26248 spec. H=2.075 R=0.555
1388 Vertical #20 net haul. Sta. GS-67-12. 45°47.1N; 86°36.1W. Lake Mich.
Coll: E. F. Stoermer. 12 May 1967.
126 spp. 16575 spec. H=2.212 R=0.543
1389 Vertical #20 net haul. Sta. GS-67-13. 45°43.8N; 86°41.6W. Lake Mich.
Coll: E. F. Stoermer. 12 May 1967.
103 spp. 38783 spec. H-1.644 R=0.645
1390 Vertical #20 net haul. Sta. GS-67-14. 45°40.5N; 86°48.8W. Lake Mich.
Coll: E. F. Stoermer. 12 May 1967.
78 spp. 17030 spec. H=1.823 R=0.582
1391 Vertical #20 net haul. Sta. GS-67-15. 45°36.2N; 86°58.5 W. Lake Mich.
Coll: E. F. Stoermer. 12 May 1967.
66 spp. 20883 spec. H=2.091 R=0.501
245
-------
1392 Vertical #20 net haul. Sta. GS-67-16. 45°47.4N; 87°02.2W. Lake Mich.
Coll: E. F. Stoermer. 12 May 1967.
93 spp. 32447 spec. H=2.114 R=0.534
1393 Vertical #20 net haul. Sta. GS-67-17. 45°34.ON; 87°09.0W. Lake Mich.
Coll: E. F. Stoermer. 13 May 1967.
71 spp. 36504 spec. H=2.077 R=0.513
1394a Vertical #20 net haul. Sta. GS-67-18. 45°23.5N; 87°17.5W. Lake Mich.
Coll: E. F. Stoermer. 13 May 1967.
108 spp. 58134 spec. H=1.955 R=0.583
1395 Vertical #20 net haul. Sta. GS-67-19. 45°05.0N; 87°32.3W. Lake Mich.
Coll: E. F. Stoermer. 13 May 1967.
82 spp. 85154 spec. H=1.423 R=0.677
1396 Vertical #20 net haul. Sta. GS-67-20. 44°40.2N; 87°52.8W. Lake Mich.
Coll: E. F. Stoermer. 13 May 1967.
78 spp. 135155 spec. H-1.359 R=0.688
1397 Vertical #20 net haul. Sta. GS-67-21. 44°54.7N; 87°25,8W. Lake Mich.
Coll: E. F. Stoermer. 13 May 1967.
70 spp. 152893 spec. HKL.296 R-0.695
1398 Vertical #20 net haul. Sta. GS-67-22. 44°46.6N; 87°17.4W. Lake Mich.
Coll: E. F. Stoermer. 14 May 1967.
77 spp. 32937 spec. H=1.873 R=0.569
1399a Surface #20 net tow. Harbor entrance, Port Washington, Wisconsin.
PW: 43°23.2'N; 87°51.7'W. Coll: E. F. Stoermer. 5 May 1967.
64 spp. 14704 spec. H=2.041 R=0.509
1400a Surface #20 net tow. Harbor entrance, Sheboygan, Wisconsin, Lake Mich.
SB: 43°45.0'N; 87°41.5'W. Coll: E. F. Stoermer. 6 May 1967.
96 spp. 16788 spec. H=2.297 R=0.497
1401 Surface #20 net tow. Harbor entrance, Manitowoc, Wisconsin, Lake Mich.
MO: 44°05.6rN; 87°38.6'W. Coll: E. F. Stoermer. 6 May 1967.
101 spp. 17008 spec. H=2.029 R=0.560
1402 Surface #20 net tow. Harbor entrance, Two Rivers, Wisconsin, Lake Mich.
TR: 44°Q8.6'N; 87°33.6'W. Coll: E. F. Stoermer. 6 May 1967.
108 spp. 18468 spec. H=2.055 R=0.561
1403 Surface #20 net tow. Harbor entrance, Charlevoix, Michigan, Lake Mich.
CA: 45°19.3'N; 85°15.9'W. Coll: E. F. Stoermer. 10 May 1967.
123 spp. 7653 spec. H=2.859 R=0.406
1404 Surface #20 net tow. Harbor entrance, Manistique, Michigan, Lake Mich.
MQ: 45°56.7'N; 86°14.8fW. Coll: E. F. Stoermer. 10 May 1967.
163 spp. 7872 spec. H=2.327 R=0.543
1405 Surface #20 net tow. Harbor entrance, Escanaba, Michigan, Lake Mich.
ES: 45°44.7'N; 87°02.2'W. Coll; E. F. Stoermer. 12 May 1967.
92 spp. 15504 spec. H=1.534 R<=0.661
246
-------
1406a
1407
1408a
1409a
1410a
1411a
1412a
1413a
1414a
1415
1416
1417
1418a
14l9a
Surface #20 net tow. Harbor entrance, Green Bay, Wisconsin. Lake Mich.
GB: 44°39.2'N; 87°54.1'W. Coll: E. F. Stoermer. 13 May 1967.
75 spp. 37095 spec.
H=0.513
May
R=0.881
Surface #20 net tow. Harbor entrance, Sturgeon Bay, Wisconsin, Lake Mich.
SM: 44°47.5'N; 87°18.6'W. Coll: E. F. Stoermer. 14 May 1967.
116 spp. 16747 spec.
H=2.393
May
R=0.497
Vertical #20 net tow. Sta. A-3-E. 42°05'30"N; 86043'00"W. Lake Mich.
Coll: E. Dunster. 23 May 1967.
48 spp. 22363 spec. H=1.694 R=0.562
Vertical #20 net tow. Sta. A-4-E. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 23 May 1967.
32 spp. . 33606 spec. H=1.553 R-0.556
Vertical #20 net haul. Sta. A-6-E. 41°52'00"N; 87l27fOO"W. Lake Mich.
Coll: E. Dunster. 24 May 1967.
48 spp. 17736 spec. H=1.555 R=0.598
Vertical #20 net haul. Sta. C-3-E. 42°49'10"N; 86028'25"W. Lake Mich.
Coll: E. Dunster. 31 May 1967.
48 spp. 24373 spec. H-1.558 R=0.597
Vertical #20 net haul. Sta. C-5-E. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 31 May 1967.
44 spp. 23758 spec. H=1.480 R=0.609
Vertical #20 net haul. Sta. C-7-E. 42047'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 25 May 1967.
37 spp. 31657 spec. H=1.185 R=0.672
Vertical #20 net haul. Sta. E-2-E. 44°37'00"N; 86°21'42"W. Lake Mich.
Coll: E. Dunster. 28 May 1967.
37 spp. 29775 spec. H=1.363 R=0.623
Vertical #20 net haul. Sta.E-3-E. 44°34'00"N; 86040'00"W. Lake Mich.
Coll: E. Dunster. 28 May 1967.
38 spp. 44474 spec. H=1.244 R=0.658
Vertical #20 net haul. Sta. E-5-E. 44°2V30"N; 87°10'18"W. Lake Mich.
Coll: E. Dunster. 28 May 1967.
58 spp. 45729 spec. H-1.472 R=0.637
Surface #20 net tow. Harbor entrance, Holland, Michigan, Lake Mich.
HO: 42°46.4'N; 86°12.9'W. Coll: E. Dunster. 22 May 1967.
138 spp. 26748 spec. H=2.574 R=0.478
Surface #20 net tow. Harbor entrance, South Haven, Michigan, Lake Mich.
SH: 42°24.0'N; 86°17.3'W. Coll: E. Dunster. 22 May 1967.
50 spp. 6430 spec. H=1.829 R=0.532
Surface #20 net tow. Harbor entrance, Buffington, Indiana, Lake Mich.
BU: 41°38.8'N; 87°24.6'W. Coll: E. Dunster. 23 May 1967.
42 spp. 5462 spec. H=2.098 R=0.439
247
-------
1420 Surface #20 net tow. Harbor entrance, Indiana Harbor, Indiana, Lake
Mich. IH: 41°40.9'N; 87°26.5'W. Coll: E. Dunster. 23 May 1967.
40 spp. 6620 spec. H=1.938 R=0.475
1421a Surface #20 net tow. Harbor entrance, Calumet Harbor, Indiana, Lake
Mich. CH: 41°43.5fN; 87°2906'W. Coll: E. Dunster. 23 May 1967.
48 spp. 5764 spec. H=2.011 R=0.480
1422a Surface #20 net tow. Harbor entrance, Gary, Indiana, Lake Mich.
GA: 41°37.5'N; 87°19.4'W. Coll: E. Dunster. 23 May 1967.
69 spp. 19573 spec. H=2.037 R=0.519
1423 Surface #20 net tow. Harbor entrance, Waukegan, Illinois, Lake Mich.
WA: 42°21.7'N; 87°48.8'W. Coll: E. Dunster. 25 May 1967.
80 spp. 23353 spec. H=2.195 R=0.499
1424a Surface #20 net tow. Harbor entrance, Kenosha, Wisconsin, Lake Mich.
KN: 42°35.7'N; 87°48.5'W. Coll: E. Dunster. 25 May 1967.
42 spp. 7506 spec. H=2.214 R=0.408
1425 Surface #20 net tow. Harbor entrance, Racine, Wisconsin, Lake Mich.
RA: 42°44.1'N; 87°46.3'W. Coll: E. Dunster. 25 May 1967.
41 spp. 11311 spec. H=2.111 R=0.432
1426 Surface #20 net tow. Harbor entrance, Manistee, Michigan, Lake Mich.
MS: 44°15.1'N; 86°20.8'W. Coll: E. Dunster. 29 May 1967.
135 spp. 9525 spec. H=2.896 R=0.410
1427 Surface #20 net tow. Harbor entrance, Ludington, Michigan, Lake Mich.
LU: 43°57.2'N; 86°27.8'W. Coll: E. Dunster. 29 May 1967.
96 spp. 8260 spec. H=2.726 R=0.403
1428a Surface #20 net tow. Harbor entrance, Muskegon, Michigan, Lake Mich.
MU: 43°13.5'N; 86°20.8'W. Coll: E. Dunster. 29 May 1967.
96 spp. 33189 spec. H=1.346 R=0.705
1429a Surface #20 net tow. Harbor entrance, White Lake, Michigan, Lake Mich.
WL: 43°22.5'N; 86°25.3'W. Coll: E. Dunster. 29 May 1967.
75 spp. 9421 spec. H=2.399 R=0.444
1430a Surface #20 net tow. Michigan City, Indiana, Lake Mich. MC: 41°43.7'N;
87°54.7'W. Coll: J. Ayers. 12 June 1967.
18 spp. 4053 spec. H=0.969 R=0.665
1431 Vertical #20 net tow. Sta. A-3-E. 42°05f30"N; 86°43'00"W. Lake Mich.
Coll: J. Ayers. 12 June 1967.
44 spp. 38837 spec. H=1.760 R=0.535
1432 Vertical #20 net tow. Sta. A-4-E. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: J. Ayers. 13 June 1967.
55 spp. 39148 spec. H=1.876 R=0.532
1433 Vertical #20 net tow. Sta. C-3-E. 42°49'10"N; 86°28t25"W. Lake Mich.
Coll: J. Ayers. 17 June 1967.
48 spp. 15482 spec. H=2.321 R=0.400
248
-------
1434
1435
1436
1437
1438
1439a
1440a
1441a
1442a
1443
1444a
1445a
1446a
1447a
Vertical #20 net tow. Sta. C-5-E. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: J. Ayers. 17 June 1967.
45 spp. 33436 spec.
H=1.453
R=0.618
Vertical #20 net tow. Sta. C-7-E. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: J. Ayers. 13 June 1967.
46 spp. 31673 spec. H=1.695 R=0.557
Vertical #20 net tow. Sta. E-2-E. 44037'00"N; 86°21'42"W. Lake Mich.
Collz.j. Ayers. 15 June 1967.
42 spp. 27636 spec. H-1.894 R=0.493
Vertical #20 net tow. Sta. E-3-E. 44°34'00"N; 86°40'00"W. Lake Mich.
Coll: J. Ayers. 15 June 1967.
31 spp. 37153 spec. H=1.293 R=0.623
Vertical #20 net tow. Sta. E-5-E. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: J. Ayers. 14 June 1967.
38 spp. 27540 spec. H=1.307 R=0.641
Vertical #20 net tow. Sta. B-6. 42°22'30"N; 87030'00"W. Lake Mich.
Coll: C. F. Powers. 5 June 1964.
52 spp. 50050 spec. H=1.787 R=0.548
Vertical #20 net tow. Sta. B-6. 42°22'30"N; 87°30fOO"W. Lake Mich.
Coll: C. F. Powers. 11 July 1964.
46 spp. 27137 spec. H=2.152 R=0.438
Vertical #20 net tow. Sta. B-6. 42°22'30"N; 87°30tOO"W. Lake Mich.
Coll: C. F. Powers. 24 July 1964.
41 spp. 45399 spec. H=1.842 R=0.504
Vertical #20 net tow. Sta. B-6. 42°22'30"N; 87030'00"W. Lake Mich.
Coll: C. F. Powers. 2 Aug. 1964.
32 spp. 29310 spec. H=1.895 R=0.453
Vertical #20 net tow. Sta. B-6. 42°22'30"N; 87030'00"W. Lake Mich.
Coll: C. F. Powers. 16 Aug. 1964.
23 spp. 50586 spec. H=1.361 R=0.566
Vertical #20 net tow. Sta. B-6. 42°22'30"N; 87°30I00"W. Lake Mich.
Coll: C. F. Powers. 19 Sept. 1964.
27 spp. 32989 spec. H=1.523 R=0.538
Vertical #20 net tow. Sta. B-6. 42°22'30"N; 87°30'00"W. Lake Mich.
Coll: C. F. Powers. 14 Oct. 1964.
40 spp. 30660 spec. H-1.500 R=0.593
Vertical #20 net tow. Sta. A-3. 42°05'30"N; 86°43'00"W. Lake Mich.
Coll: E. Dunster. 11 July 1967.
45 spp. 40882 spec. H=2.143 R=0.437
Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 11 July 1967.
35 spp. 42752 spec. H=2.284 R=0.358
249
-------
1448a Vertical #20 net tow. Sta. A-6. 41°52I00"N; 87°27'00"W. Lake Mich.
Coll: E. Dunster. 10 July 1967.
32 spp. 28275 spec. H-1.311 R=0.622
1449a Vertical #20 net tow. Sta. C-3. 42°49t10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 16 July 1967.
64 spp. 26169 spec. H=2.568 R=0.383
1450a Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50fOO"W. Lake Mich.
Coll: E. Dunster. 16 July 1967.
49 spp. 52515 spec. H=2.278 R=0.415
1451a Vertical #20 net tow. Sta. C-7. 42°47I30"N; 87°34f30"W. Lake Mich.
Coll: E. Dunster. 16 July 1967.
52 spp. 50802 spec. H=2.193 R=0.445
1452a Vertical #20 net tow. Sta. E-2. 44°37fOO"N; 86°21t42"W. Lake Mich.
Coll: E. Dunster. 14 July 1967.
68 spp. 46974 spec. H=2.464 R=0.416
1453a Vertical #20 net tow. Sta. E-3. 44°34'00"N; 86°40'00"W. Lake Mich.
Coll: E. Dunster. 15 July 1967.
47 spp. 39563 spec. H=U843 R=0.521
1454a Vertical #20 net tow. Sta. E-5. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: E. Dunster. 15 July 1967.
46 spp. 49990 spec. H=1.858 R=0.515
1455 Surface #20 net tow. CH-1, Chicago, Illinois, Lake Mich. Coll: E.
Dunster. 10 July 1967.
1504a Vertical #20 net tow. Sta. A-3. 42°05'3p"N; 86°43'00"W. Lake Mich.
Coll: E. Dunster. 28 Aug. 1967.
45 spp. 40505 spec. H=1.404 R=0.631
1505 Vertical #20 net tow. Sta. A-4. 42°03f30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 28 Aug. 1967.
19 spp. 19406 spec. H=1.484 R=0.496
1506 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27'00'%. Lake Mich.
Coll: E. Dunster. 29 Aug. 1967.
17 spp. 19117 spec. H=1.123 R=0.603
1508 Vertical #20 net tow. Sta. C-3. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 2 Sept. 1967.
23 spp. 25022 spec. H=1.530 R=0.512
1509 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°40'00"W. Lake Mich.
Coll: E. Dunster. 2 Sept. 1967.
30 spp. 19814 spec. H=2.066 R=0.393
1510 Vertical #20 net tow. Sta. C-7. 42°47t30"N; 87°34I30"W. Lake Mich.
Coll: E. Dunster. 29 Aug. 1967.
25 spp. 31630 spec. H=1.375 R=0.573
250
-------
1511 Vertical #20 net tow. Sta. E-2. 44°37fOO"N; 86°21'42"W. Lake Mich.
Coll: E. Dunster. 1 Sept. 1967.
59 spp. 32577 spec. H=2.351 R=0.423
1512 Vertical #20 net tow. Sta. E-3. 44°34'00MN; 86040'00"W. Lake Mich.
Coll: E. Dunster. 1 Sept. 1967.
59 spp. 25468 spec. H=2.396 R=0.412
1513 Vertical #20 net tow. Sta. E-5. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: E. Dunster. 31 Aug. 1967.
33 spp. 19734 spec. H=1.813 R=0.482
1520 Surface #20 net tow. Holland, Michigan, Lake Mich. HO: 42°46.4'N;
86°12.9'W. Coll: J. Ayers. 18 Sept. 1967.
76 spp. 21209 spec. H=1.917 R=0.557
1521 Surface #20 net tow. South Haven, Michigan, Lake Mich. SH: 42°24.0'N;
86°17.3fW. Coll: J. Ayers. 18 Sept. 1967.
89 spp. 17332 spec. H=1.451 R=0.677
1522 Surface #20 net tow. Benton Harbor, Michigan, Lake Mich. BH: 42°06.9'N;
86°29.7'W. Coll: J. Ayers. 18 Sept. 1967.
102 spp. 54841 spec. H=1.452 R=0.686
1523a Surface #20 net tow. Racine, Wisconsin, Lake Mich. RA: 42°44.1'N;
87°46.3'W. Coll: J. Ayers. 19 Sept. 1967.
54 spp. 10840 spec. H=1.653 R=0.586
1524 Surface #20 net tow. Milwaukee, Wisconsin, Lake Mich. MI: 43°01.6'N;
87°52.9'W. Coll: J. Ayers. 20 Sept. 1967.
38 spp. 4568 spec. H=1.595 R=0.561
1525a Surface #20 net tow. Port Washington, Wisconsin, Lake Mich. PW: 43°
23.2'N; 87°51.7'W. " Coll: J. Ayers. 20 Sept. 1967.
27 spp. 7181 spec. H-1.426 R=0.567
1526 Surface #20 net tow. Manitowoc, Wisconsin, Lake Mich. MO: 44°05.6'N;
87°38,>6TW. Coll: J. Ayers. 20 Sept. 1967.
121 spp. 17577 spec. H=2.230 R=0.535
1527 Surface #20 net tow. Two Rivers, Wisconsin, Lake Mich. TR: 44°08.6'N;
87°33.6'W. Coll: J. Ayers. 20 Sept. 1967.
135 spp. 15900 spec. H=1.820 R=0.629
1528a Surface #20 net tow. Sheboygan, Wisconsin, Lake Mich. SB: 43°45.0'N;
87041.5'W. Coll: J. Ayers. 20 Sept. 1967.
65 spp. 6926 spec. H=2.057 R=0.507
1529 Surface #20 net tow. Kewaunee, Wisconsin, Lake Mich. KW: 44°27.5'N;
87°29.6'W. Coll: J. Ayers. 20 Sept. 1967.
95 spp. 8339 spec. H=2.389 R=0.475
1530a Surface #20 net tow. Frankfort, Michigan, Lake Mich. FR: 44°37.8'N;
86°15.0fW. Coll: J. Ayers. 24 Sept. 1967.
94 spp. 9999 spec. H=1.856 R=0.591
251
-------
1531 Surface #20 net tow. Grand Haven, Michigan, Lake Mich. GH: 43°03.5'N;
86°15.4'W. Coll: J. Ayers. 25 Sept. 1967.
70 spp. 11830 spec. H=1.762 R=0.585
1532 Vertical #20 net tow. Sta. A-3. 42°05'30"N; 86°43fOO"W. Lake Mich.
Coll: J. Ayers. 18 Sept. 1967.
49 spp. 30441 spec. H=1.380 R=0.645
1533 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°OSI30"W. Lake Mich.
Coll: J. Ayers. 19 Sept. 1967.
49 spp. 21542 spec. H=1.362 R=0.650
1534 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27fOO"W. Lake Mich.
Coll: J. Ayers. 19 Sept. 1967.
39 spp. 32233 spec. H=1.433 R=0.609
1535 Vertical #20 net tow. Sta. C-7. 42°47f30"N; 87°34t30"W. Lake Mich.
Coll: J. Ayers. 20 Sept. 1967.
32 spp. 31067 spec. H=1.109 R=0.680
1536 Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86°21f42"W. Lake Mich.
Coll: J. Ayers. 24 Sept. 1967.
85 spp. 36674 spec. H=2.199 R=0.505
1537a Vertical #20 net tow. Sta. E-3. 44°34'00"N; 86°40'00"W. Lake Mich.
Coll: J. Ayers. 24 Sept. 1967.
63 spp. 23186 spec. H=2.575 R=0.378
1538a Vertical #20 net tow. Sta. E-5. 44°25'30"N; 87°10'18MW. Lake Mich.
Coll: J. Ayers. 23 Sept. 1967.
70 spp. 18103 spec. H=2.003 R=0.529
1539a Vertical #20 net tow. Sta. C-3. 42°49'10"N; 86°28'25"\1. Lake Mich.
Coll: C. F. Powers. 4 Oct. 1967.
31 spp. 19874 spec. H=1.462 R=0.574
1540 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: C. F. Powers. 4 Oct. 1967.
41 spp. 20147 spec. EN1.401 R=0.623
1541a Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86°21I42"W. Lake Mich.
Coll: E. F. Stoermer. 11 Oct. 1967.
85 spp. 18791 spec. H=1.854 R=0.583
1542 Vertical #20 net tow. Sta. E-3. 44°34'00"N; 86"40'00"W. Lake Mich.
Coll: E. F. Stoermer. 11 Oct. 1967.
72 spp. 19664 spec. H=2.417 R=0.435
1543 Vertical #20 net tow. Sta. E-5. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: E. F. Stoermer. 10 Oct. 1967.
52 spp. 13922 spec. H=1.460 R-0.631
1544 Surface #20 net tow. Muskegon, Michigan, Lake Mich. MU: 43°13.5'N;
86°20.8'W. Coll: E. F. Stoermer. 2 Oct. 1967.
Ill spp. 41967 spec. H=0.821 R=0.826
252
-------
1545 Surface #20 net tow. White Lake, Michigan, Lake Mich. WL: 43°22.5'N;
86°25.3'W. Coll: E. F. Stoermer. 2 Oct. 1967.
159 spp. 14799 spec. HN2.579 R=0.491
1546 Surface #20 net tow. Ludington, Michigan, Lake Mich. LU: 43°57.2'N;
86027.8fW. Coll: E. F. Stoermer. 2 Oct. 1967.
129 spp. 19993 spec. H=1.155 R=0.762
1547
Surface #20 net tow. Manistee, Michigan, Lake Mich. MS: 44°15.1'N;
86°20.8'W. Coll: E. F. Stoermer. 2 Oct. 1967.
71 spp. 12525 spec. H=1.339 R=0.686
1548 Surface #20 net tow. Charlevoix, Michigan, Lake Mich. CA: 45°19.3'N;
85°15.9'W. Coll: E. F. Stoermer. 3 Oct. 1967.
50 spp. 7861 spec. H=1.328 R=0.661
1549 Surface #20 net tow. Manistique, Michigan, Lake Mich. MQ: 45°56.7'N;
86°14.8fW. Coll: E. F. Stoermer. 4 Oct. 1967.
85 spp. 7297 spec. H=2.287 R=0.485
1550 Surface #20 net tow. Marinette, Wisconsin and Menominee, Michigan.
Green Bay. MR: 45°05.8'N; 87°35.1'W. Coll: E. F. Stoermer. 5 Oct. 1967.
233 spp. 8071 spec. H=3.574 R=0.344
1551 Surface #20 net tow. Escanaba, Michigan, Little Bay De Noc. ES: 45°
44.7'N; 87°02.2'W. Coll: E. F. Stoermer. 5 Oct. 1967.
77 spp. 12519 spec. H=1.980 R=0.544
1552 Surface #20 net tow. Sturgeon Bay, Wisconsin, Lake Mich. SM: 44°
47.5'N; 87°18.6'W. Coll: E. F. Stoermer. 6 Oct. 1967.
88 spp. 15145 spec. H=1.850 R=0.587
1553 Surface #20 net tow. Sturgeon Bay, Wisconsin, Green Bay. SG: 44°
50.IN; 87°22.9'W. Coll: E. F. Stoermer. 6 Oct. 1967.
114 spp, 13616 spec. H=2.024 R=0.573
1554a Vertical #20 net tow. Sta. GS-1A. 44°46.9'N; 86°13.7'W. Lake Mich.
Coll: E. F. Stoermer. 3 Oct. 1967.
91 spp. 28106 spec. H=2.212 R=0.510
1555 Vertical #20 net tow. Sta. GS-2A. 45°00.6'N; 85°56.5'W. Lake Mich.
Coll: E. F. Stoermer. 3 Oct. 1967.
81 spp. 28320 spec. H=1.973 R=0.551
1556 Vertical #20 net tow. Sta. GS-3A. 45°04.4fN; 85°26.6'W. Lake Mich.
Coll: E. F. Stoermer. 3 Oct. 1967.
56 spp. 19177 spec. H-1.767 R=0.561
1557 Vertical #20 net tow. Sta. GS-4A. 45°25.2'N; 85°19.0'W. Lake Mich.
Coll: E. F. Stoermer. 3 Oct. 1967.
81 spp. 26760 spec. H-1.705 R=0.612
1558 Vertical #20 net tow. Sta. GS-5A. 45°30.5'N; 85°23.5'W. Lake Mich.
Coll: E. F. Stoermer. 4 Oct. 1967.
69 spp. 25228 spec. H-1.775 R=0.581
253
-------
1559 Vertical #20 net tow. Sta. GS-7A. 45°34.5'N; 85°41.2'W. Lake Mich.
Coll: E. F. Stoermer. 4 Oct. 1967.
68 spp. 28594 spec. H=1.682 R=0.601
1560 Vertical #20 net tow. Sta. GS-8A. 45°44.7'N; 85*46.5'W. Lake Mich.
Coll: E. F. Stoermer. 4 Oct. 1967.
63 spp. 21173 spec. H=1.992 R=0.519
1561 Vertical #20 net tow. Sta. GS-9A. 45°54.6'N; 86°11.5'W. Lake Mich.
Coll: E. F. Stoermer. 4 Oct. 1967.
49 spp. 17037 spec. H=1.859 R=0.522
1562 Vertical #20 net tow. Sta. GS-10A. 45°34.0'Nj 86°25.7'W. Lake Mich.
Coll: E. F. Stoerraer. 5 Oct. 1967.
54 spp. 40534 spec. H=1.882 R=0.528
1563 Vertical #20 net tow. Sta. GS-11A. 45°31.7IN; 86°41.4'W. Lake Mich.
Coll: E. F. Stoermer. 5 Oct. 1967.
60 spp. 42766 spec. H=1.711 R=0.582
1564 Vertical #20 net tow. Sta. GS-12A. 45°47.1'N; 86°36.1'W. Lake Mich.
Coll: E. F. Stoermer. 5 Oct. 1967.
46 spp. 60756 spec. H=1.066 R=0.722
1565 Vertical #20 net tow. Sta. GS-13A. 45°43.8'N; 86°41.6'W. Lake Mich.
Coll: E. F. Stoermer. 5 Oct. 1967.
155 spp. 19722 spec. H=1.653 R=0.672
1566 Vertical #20 net tow. Sta. GS-14A. 45°40.5'N; 86°48.8'W. Green Bay.
Coll: E. F. Stoermer. 5 Oct. 1967.
70 spp. 54510 spec. H=1.493 R=0.649
1567 Vertical #20 net tow. Sta. GS-15A. 45°36.2'N; 86°58.5'W, Green Bay.
Coll: E. F. Stoermer. 5 Oct. 1967.
115 spp. 62984 spec. H=1.832 R=0.614
1568 Vertical #20 net tow. Sta. GS-16A. 45°47.4'N; 87°02.2'W. Little
Bay De Noc. Coll: E. F. Stoermer. 5 Oct. 1967.
73 spp. 69301 spec. H=1.517 R=0.646
1569 Vertical #20 net tow. Sta. GS-17A. 45°34.0'N; 87°09.0'W. Green Bay.
Coll: E. F. Stoermer. 5 Oct. 1967.
106 spp. 67273 spec. H=1.685 R=0.639
1570 Vertical #20 net tow. Sta. GS-18A. 45°23.5'N; 87°17.5'W. Green Bay.
Coll: E. F. Stoermer. 5 Oct. 1967.
57 spp. 10084 spec. H=1.813 R=0.552
1571 Vertical #20 net tow. Sta. GS-19A. 45°05.1'N; 87°32.3'W. Green Bay.
Coll: E. F. Stoermer. 6 Oct. 1967.
102 spp. 170827 spec. H=1.233 R=0.733
1572 Vertical #20 net tow. Sta. GS-20A. 44°40.2'N; 87°52.9'W. Green Bay.
Coll: E. F. Stoermer. 6 Oct. 1967.
66 spp. 110952 spec. H=1.146 R=0.727
254
-------
1573 Vertical #20 net tow. Sta. GS-21A. 44°55.3fN; 87°26.0'W. Green Bay.
Coll: E. F. Stoermer. 6 Oct. 1967.
91 spp. 89293 spec. H=1.423 R=0.685
1574 Vertical #20 net tow. Sta. GS-22A. 44°46.6'N; 87°17.2'W. Lake Mich.
Coll: E. F. Stoermer. 6 Oct. 1967.
161 spp. 34766 spec. H=2.155 R=0.576
1575 Vertical #20 net tow. Sta. GS-28A. 44°52.2'N; 87039.0'W. Green Bay.
Coll: E. F. Stoermer. 6 Oct. 1967.
98 spp. 77508 spec. H=1.465 R=0.680
1580 Surface #20 net tow. Indiana Harbor, Indiana, Lake Mich. Coll: J.
Ayers. 8 Nov. 1967.
1581 Surface #20 net tow. Gary, Indiana, Lake Mich. Coll: J. Ayers.
8 Nov. 1967.
1582 Surface #20 net tow. Calumet Harbor, Indiana, Lake Mich. Coll: J.
Ayers. 10 Nov. 1967.
1583 Surface #20 net tow. Michigan City Harbor, Indiana, Lake Mich.
Coll: J. Ayers. 10 Nov. 1967.
1584 Surface #20 net tow. Chicago Harbor, Illinois, Lake Mich. Coll: J.
Ayers. 10 Nov. 1967.
1589 Vertical #20 net tow. 1/4 mi west of GH pierhead. Lake Mich. Coll:
E. Dunster. 19 March 1968.
1590 Vertical #20 net tow. 2.8 mi N GH pierhead, 3/4 mi from shore. Lake
Mich. Coll: E. Dunster. 19 March 1968.
1591 Vertical #20 net tow. Open water area in center of ice flow 1 1/4 mi
from shore. Lake Mich. Coll: E. Dunster. 19 March 1968.
1592 Vertical #20 net tow. Sta. C-l. 42°49'40"N; 86°14'50"W. Lake Mich.
Coll: E. Dunster. 26 March 1968.
1593 Vertical #20 net tow. Sta. C-2. 42°49'40"N; 86°18f25"W. Lake Mich.
Coll: E. Dunster. 26 March 1968.
1594 Vertical #20 net tow. Sta. C-3. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 26 March 1968.
1595 Vertical #20 net tow. Sta. A-l. 42°06I30"N; 86°32'00"W. Lake Mich.
Coll: E. Dunster. 5 April 1968.
1596 Vertical #20 net tow. Sta. A-l. 42°06f30"N; 86°32'00"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
1597 Vertical #20 net tow. Sta. A-2. 42°06'00"N; 86°37'00"W. Lake Mich.
Coll: E. Dunster. 5 April 1968.
1598 Vertical #20 net tow. Sta. A-2. 42°06'00"N; 86°37'00"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
255
-------
1599 Vertical #20 net tow. Sta. A-3. 42005'30"N; 86°43'00"W. Lake Mich.
Coll: E. Dunster. 5 April 1968.
1600 Vertical #20 net tow. Sta. A-3. 42°05'30"N; 86043'00"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
1601 Vertical #20 net tow. Sta. A-4. 42*03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 5 April 1968.
1602 Vertical #20 net tow. Sta. A-4. 42*03'30"N; 87°06f30"W. Lake Mich.
Coll: E. Dunster. 17 April 1968.
1603 Vertical #20 net tow. Sta. A-5. 41°57I00"N; 87°18'30"W. Lake Mich.
Coll: E. Dunster. 3 April 1968.
1604 Vertical #20 net tow. Sta. A-5. 41°57'00"N; 87018'30"W. Lake Mich.
Coll: E. Dunster. 17 April 1968.
1605 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87027'00"W. Lake Mich.
Coll: E. Dunster. 3 April 1968.
1606 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27'00"W. Lake Mich.
Coll: J. Ayers. 13 June 1967.
1607 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27I00"W. Lake Mich.
Coll: E. Dunster. 17 April 1968.
1608 Vertical #20 net tow. Sta. C-l. 42°49'40"N; 86°14'50"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
1609 Vertical #20 net tow. Sta. C-2. 42°49f40"N; 86°18'25"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
1610 Vertical #20 net tow. Sta. C-3. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
1611 Vertical #20 net tow. Sta. C-4. 42°48'50"N; 86°41'30"W. Lake Mich.
Coll: E. Dunster. 2 April 1968.
1612 Vertical #20 net tow. Sta. C-4. 42°48'50"N; 86°41'30"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
1613 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 2 April 1968.
1614 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 16 April 1968.
1615 Vertical #20 net tow. Sta. C-6. 42°47'40"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 2 April 1968.
1616 Vertical #20 net tow. Sta. C-6. 42°47'40"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 17 April 1968.
1617 Vertical #20 net tow. Sta. C-7. 42047'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 2 April 1968.
256
-------
1618 Vertical #20 net tow. Sta. C-7. 42°47f30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 17 April 1968.
1619 Vertical #20 net tow. Sta. E-l. 44°37t30"N; 86°18'12"W. Lake Mich.
Coll: E. Dunster. 22 April 1968.
1620 Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86"21I42"W. Lake Mich
Coll: E. Dunster. 22 April'1968.
1621 Vertical #20 net tow. Sta. E-3. 44034'00"N; 86040'00"W. Lake Mich
Coll: E. Dunster. 22 April 1968.
1622 Vertical #20 net tow. Sta. E-4. 44°30f18"N; 86°55'18"W. Lake Mich
Coll: E. Dunster. 22 April 1968.
1623 Vertical #20 net tow. Sta. E-5. 44°25I30"N; 87°10'18"W. Lake Mich.
Coll: E. Dunster. 21 April 1968.
1624 Vertical #20 net tow. Sta. E-6. 44027'48"N; 87°26'25"W. Lake Mich.
Coll: E. Dunster. 21 April 1968.
1625 One minute surface #20 net tow 1 mile from Grand Haven, Michigan pier-
heads bearing 260°. Sta. 1. Lake Mich. Coll: E. F. Stoermer. 7 May
1968.
1626 One minute surface #20 net tow 2 miles offshore from Grand Haven,
Michigan pierheads bearing 260°. Sta. 2. Lake Mich. Coll: E. F.
Stoermer. 7 May 1968.
1627 One minute surface #20 net tow 3 miles offshore from Grand Haven,
Michigan pierheads bearing 260°. Sta. 3. Lake Mich. Coll: E. F.
Stoermer. 7 May 1968.
1628 One minute surface #20 net tow 4 miles offshore from Grand Haven,
Michigan pierheads bearing 260°. Sta. 4. Lake Mich. Coll: E. F.
Stoermer. 7 May 1968.
1629 One minute surface #20 net tow 5 miles from Grand Haven,^Michigan
pierheads bearing 260°. Sta. 5. Lake Mich. Coll: E. F. Stoermer.
7 May 1968.
1630 Surface #20 net tow in Port Sheldon thermal discharge. Coll: E. F.
Stoermer. 7 May 1968.
1631 Surface #20 net tow in Muskegon, Michigan plume 1/2 mi from pierheads.
Coll: E. F. Stoermer. 7 May 1968.
1632 Vertical #20 net tow. Sta. A-l. 42°06'30"N; 86°32'00"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
1633 Vertical #20 net tow. Sta. A-2. 42°06'00"N; 86°37'00"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
1634 Vertical #20 net tow. Sta. A-3. 42°05'30"N; 86°43'00"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
257
-------
1635 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 14 May 1968.
1636 Vertical #20 net tow. Sta. A-5. 41°57fOO"N; 87°18'30"W. Lake Mich.
Coll: E. Dunster. 14 May 1968.
1637 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27'00"W. Lake Mich.
Coll: E. Dunster. 14 May 1968.
1638 Vertical #20 net tow. Sta. C-l. 42°49t40"N; 86°14'50"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
1639 Vertical #20 net tow. Sta. C-l. 42°49'40"N; 86°14f50"W. Lake Mich.
Coll: E. Dunster. 27 May 1968.
1640 Vertical #20 net tow. Sta. C-2. 42°49'40"N; 86°18'25"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
1641 Vertical #20 net tow. Sta. C-2. 42°49'40"N; 86018'25"W. Lake Mich.
Coll: E. Dunster. 27 May 1968.
1642 Vertical #20 net tow. Sta. C-3. 42°49t10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
1643 Vertical #20 net tow. Sta. C-3. 42°49I10"N; 86028'25"W. Lake Mich.
Coll: E. Dunster. 27 May 1968.
1644 Vertical #20 net tow. Sta. C-4. 42°48'50"N; 86°41'30"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
1645 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 13 May 1968.
1646 Vertical #20 net tow. Sta. C-5. 42049'00"N; 86050'00"W. Lake Mich.
Coll: E. Dunster. 27 May 1968.
1647 Vertical #20 net tow. Sta. C-6. 42°47'40"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 14 May 1968.
1648 Vertical #20 net tow. Sta. C-6. 42°47f40"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 27 May 1968.
1649 Vertical #20 net tow. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 14 May 1968.
1650 Vertical #20 net tow. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 27 May 1968.
1651 Vertical #20 net tow. Sta. E-l. 44C37'30"N; 86°18'12"W. Lake Mich.
Coll: E. Dunster. 15 May 1968.
1652 Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86°21f42"W. Lake Mich.
Coll: E. Dunster. 15 May 1968.
258
-------
1653 Vertical #20 net tow. Sta. E-3. 44034'00"N; 86°40'00"W. Lake Mich.
Coll: E. Dunster. 15 May 1968.
1654 Vertical #20 net tow. Sta. E-4. 44°30I18"N; 86°55'18"W. Lake Mich.
Coll: E. Dunster. 15 May 1968.
1655 Vertical #20 net tow. Sta. E-5. 44°25I30"N; 87010'18"W. Lake Mich.
Coll: E. Dunster. 15 May 1968.
1656 Vertical #20 net tow. Sta. E-6. 44°27'48"N; 87°26t25"W. Lake Mich.
Coll: E. Dunster. 15 May 1968.
1657 Vertical #20 net tow. Sta. A-l. 42°06'30"N; 86°32'00"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1658 Vertical #20 net tow. Sta. A-2. 42006'00"N; 86°37'00"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1659 Vertical #20 net tow. Sta. A-3. 42°05'30"N; 86°43'00"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1660 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 16 July 1968.
1661 Vertical #20 net tow. Sta. A-5. 41°57'00"N; 87018'30"W. Lake Mich.
Coll: E. Dunster. 16 July 1968.
1662 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27'00"W. Lake Mich.
Coll: E. Dunster. 16 July 1968.
1663 Vertical #20 net tow. Sta. C-l. 42°49'40"N; 86°14'50"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1664 Vertical #20 net tow. Sta. C-2. 42°49'40"N; 86°18'25"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1665 Vertical #20 net tow. Sta. C-3. 42°49'10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1666 Vertical #20 net tow. Sta. C-4. 42°48'50"N; 86°41?30"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1667 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 15 July 1968.
1668 Vertical #20 net tow. Sta. C-6. 42°47'50"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 16 July 1968.
1669 Vertical #20 net tow. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 16 July 1968.
1670 Vertical #20 net tow. Sta. E-l. 44°37'30"N; 86°18'12"W. Lake Mich.
Coll: E. Dunster. 18 July 1968.
259
-------
1671 Vertical #20 net tow. Sta. E-2. 44°37/00"N; 86°21'42"W. Lake Mich.
Coll: E. Dunster. 18 July 1968.
1672 Vertical #20 net tow. Sta. E-3. 44°34fOO"N; 86°40fOO"W. Lake Mich.
Coll: E. Dunster. 17 July 1968.
1673 Vettical #20 net tow. Sta. E-4. 44°30'18"N; 86°55'18"W. Lake Mich.
Coll: E. Dunster. 17 July 1968.
1674 Vertical #20 net tow. Sta. E-5. 44°25'30"N; 87°1Q'I8"W. Lake Mich.
Coll: E. Dunster. 17 July 1968.
1675 Vertical #20 net tow. Sta. E-6. 44°27'48"N; 87°26'25"W. Lake Mich.
Coll: E. Dunster. 17 July 1968.
1676 Vertical #20 net tow. Sta. A-l. 42°06'30"N; 86°32'00"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1677 Vertical #20 net tow. Sta. A-2. 42°06'00"N; 86°37'00"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1678 Vertical #20 net tow. Sta. A-3. 42°05'30"N; 84°43'00"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1679 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 7 Aug. 1968.
1680 Vertical #20 net tow. Sta. A-5. 41°57'00"N; 87°18'30"W. Lake Mich.
Coll: E. Dunster. 7 Aug. 1968.
1681 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27'00"W. Lake Mich.
Coll: E. Dunster. 7 Aug. 1968.
1682 Vertical #20 net tow. Sta. C-l. 42°49'40"N; 86°14'50"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1683 Vertical #20 net tow. Sta. C-2. 42°49'40"N; 86°18'25"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1684 Vertical #20 net tow. Sta. C-3. 42°49t10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1685 Vertical #20 net tow. Sta. C-4. 42°48150"N; 86°41'30"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1686 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 6 Aug. 1968.
1687 Vertical #.20 net tow. Sta. C-6. 42°47'40"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 8 Aug. 1968.
1688 Vertical #20 net tow. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 8 Aug. 1968.
1689 Vertical #20 net tow. Sta. E-3. 44°34'00"N; 86°40I00"W. Lake Mich.
Coll: E. Dunster. 9 Aug. 1968.
260
-------
1690 Vertical #20 net tow. Sta. E-4. 44°30'18"N; 86°55'18"W. Lake Mich.
Coll: E. Dunster. 9 Aug. 1968.
1691 Vertical #20 net tow. Sta. E-5. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: E. Dunster. 9 Aug. 1968.
1692 Vertical #20 net tow. Sta. E-6. 44°27'48"N; 87°26'25"W. Lake Mich.
Coll: E. Dunster. 9 Aug. 1968.
1693 Vertical #20 net tow. Sta. A-l. 42°06'30"N; 86°32fOO"W. Lake Mich.
Coll: E. Dunster. 12 Sept. 1968.
1694 Vertical #20 net tow. Sta. A-2. 42°06'00"N; 86°37'00"W. Lake Mich.
Coll: E. Dunster. 12 Sept. 1968.
1695 Vertical #20 net tow. Sta. A-3. 42°05'30"N; 86°43'00"W. Lake Mich.
Coll: E. Dunster. 12 Sept. 1968.
1696 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 13 Sept. 1968.
1697 Vertical #20 net tow. Sta. A-5. 41°57'00"N; 87°18'30"W. Lake Mich.
Coll: E. Dunster. 13 Sept. 1968.
1698 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87027'00"W. Lake Mich.
Coll: E. Dunster. 13 Sept. 1968.
1699 Vertical #20 net tow. Sta. C-l. 42°49'40"N; 86°14'50"W. Lake Mich.
Coll: E. Dunster. 11 Sept. 1968.
1700 Vertical #20 net tow. Sta. C-2. 42049f40"N; Se'lS^S'-'W. Lake Mich.
Coll: E. Dunster. 11 Sept. 1968.
1701 Vertical #20 net tow. Sta. C-3. 42049'10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 12 Sept. 1968.
1702 Vertical #20 net tow. Sta. C-4. 42°48'50"N; 86041'30"W. Lake Mich.
Coll: E. Dunster. 12 Sept. 1968.
1703 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 12 Sept. 1968.
1704 Vertical #20 net tow. Sta. C-6. 42°47'40"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 13 Sept. 1968.
1705 Vertical #20 net tow. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 13 Sept. 1968.
1706 Vertical #20 net tow. Sta. E-l. 44°37'30"N; 86°18'12"W. Lake Mich.
Coll: E. Dunster. 14 Sept. 1968.
1707 Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86°21'42"W. Lake Mich.
Coll: E. Dunster. 14 Sept. 1968.
261
-------
1708 Vertical #20 net tow. Sta. E-3. 44°34'00"N; 86°40'00"W. Lake Mich.
Coll: E. Dunster. 14 Sept. 1968.
1709 Vertical 020 net tow. Sta. E-4. 44'30'18"N; 86°55'18"W. Lake Mich.
Coll: E. Dunster. 14 Sept. 1968.
1710 Vertical #20 net tow. Sta. E-5. 44'25'30"N; 87°10'18"W. Lake Mich.
Coll: E. Dunster. 14 Sept. 1968.
1711 Vertical #20 net tow. Sta. E-6. 44°27'48"N; 87°26'25"W. Lake Mich.
Coll: E. Dunster. 14 Sept. 1968.
1712 Vertical #20 net tow. Sta. A-l. 42°06'30"N; 86°32'00"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1713 Vertical #20 net tow. Sta. A-2. 42°06'00"N; 86°37'00"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1714 Vertical #20 net tow. Sta. A-3. 42°05"30"N; 86°43'00"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1715 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 8^°06'30"W. Lake Mich.
Coll: E. F. Stoermer. 8 Oct. 1968.
1716 Vertical #20 net tow. Sta. A-5. 41°57'00"N; 87°18f30"W. Lake Mich.
Coll: E. F. Stoermer. 8 Oct. 1968.
1717 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27'00"W. Lake Mich.
Coll: E. F. Stoermer. 8 Oct. 1968.
1718 Vertical #20 net tow. Sta. C-l. 42°49'40"N; 86°14'50"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1719 Vertical #20 net tow. Sta. C-2. 42°49'40"N; 86°18'25"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1720 Vertical #20 net tow. Sta. C-3. 42°49'10"N; 86028'25"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1721 Vertical #20 net tow. Sta. C-4. 42°48'50"N; 8604l'30"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1722 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. F. Stoermer. 7 Oct. 1968.
1723 Vertical #20 net tow. Sta. C-6. 42C47'40"N; 87°26'50"W. Lake Mich.
Coll: E. F. Stoermer. 8 Oct. 1968.
1724 Vertical #20 net tow. Sta. C-7. 42047'30MN; 87034'30"W. Lake Mich.
Coll: E. F. Stoermer. 8 Oct. 1968.
1725 Vertical #20 net tow. Sta. E-l. 44°37'30"N; 86°18'12"W. Lake Mich.
Coll: E. F. Stoermer. 11 Oct. 1968.
262
-------
1726 Vertical #20 net tow. Sta. E-2. 44037'00"N; 86021'42"W. Lake Mich.
Coll: E. F. Stoermer. 11 Oct. 1968.
1727 Vertical #20 net,tow. Sta. E-3. 44°34'00"N; 86°40'00"W. Lake Mich.
Coll: E. F. Stoermer. 11 Oct. 1968.
1728 Vertical #20 net tow. Sta. E-4. 44°30'18"N; 86055'18"W. Lake Mich.
Coll: E. F. Stoermer. 11 Oct. 1968.
1729 Vertical #20 net tow. Sta. E-5. 44°25I30"N; 87°10'18"W. Lake Mich.
Coll: E. F. Stoermer. 11 Oct. 1968.
1730 Vertical #20 net tow. Sta. E-6. 44°27'48"N; 87°26'25"W. Lake Mich.
Coll: E. F. Stoermer. 10 Oct. 1968.
1731 Vertical #20 net tow. Sta. A-3. 42°05'30"N; 86°43100"W. Lake Mich.
Coll: E. Dunster. 8 Nov. 1968.
1732 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: E. Dunster. 13 Nov. 1968.
1733 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87027'00"W. Lake Mich.
Coll: E. Dunster. 13 Nov. 1968.
1734 Vertical #20 net tow. Sta. C-l. 42°49I40"N; 86°14I50"W. Lake Mich.
Coll: E. Dunster. 10 Nov. 1968.
1735 Vertical #20 net tow. Sta. C-2. 42049'40"N; 86°18'25"W. Lake Mich.
Coll: E. Dunster. 10 Nov. 1968.
1736 Vertical #20 net tow. Sta. C-3. 42°49t10"N; 86°28'25"W. Lake Mich.
Coll: E. Dunster. 10 Nov. 1968.
1737 Vertical #20 net tow. Sta. C-4. 42°48'50"N; 86°41'30"W. Lake Mich.
Coll: E. Dunster. 10 Nov. 1968.
1738 Vertical #20 net tow. Sta. C-5. 42°49'00"N; 86°50'00"W. Lake Mich.
Coll: E. Dunster. 10 Nov. 1968.
1739 Vertical #20 net tow. Sta. C-6. 42°47'40"N; 87°26'50"W. Lake Mich.
Coll: E. Dunster. 10 Nov. 1968.
1740 Vertical #20 net tow. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: E. Dunster. 10 Nov. 1968.
1741 Vertical #20 net tow. Sta. E-l. 44°37'30"N; 86°18'12"W. Lake Mich.
Coll: E. Dunster. 9 Nov. 1968.
1742 Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86°21'42"W. Lake Mich.
Coll: E. Dunster. 9 Nov. 1968.
1743 Vertical #20 net tow. Sta. E-3. 44°34'00"N; 86°40'00"W. Lake Mich.
Coll: E. Dunster. 9 Nov. 1968.
263
-------
1744 Vertical #20 net tow. Sta. E-4. 44°30'18"N; 86°55'18"W. Lake Mich.
Coll: E. Dunster. 9 Nov. 1968.
1800 Vertical #20 net tow. Sta. E-l. 44°37I30"N; 86°18'12"W. Lake Mich.
Coll: E. Dunster. 9 Aug. 1968.
1801 Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86°21'42"W. Lake Mich.
Coll: E. Dunster. 9 Aug. 1968.
1802 Vertical #20 net tow. Sta. A-l. 42°06'30"N; 86°32'00"W. Lake Mich.
Coll: J. Ayers. 24 April 1969.
1803 Vertical #20 net tow. Sta. A-2. 42°06'00"N; 86°37'00"W. Lake Mich.
Coll: J. Ayers. 25 April 1969.
1804 Vertical #20 net tow. Sta. A-3. 42005'30"N; 86043'00"W. Lake Mich.
Coll: J. Ayers. 25 April 1969.
1805 Vertical #20 net tow. Sta. A-4. 42°03'30"N; 87°06'30"W. Lake Mich.
Coll: J. Ayers. 25 April 1969.
1806 Vertical #20 net tow. Sta. A-5. 41°57'00"N; ^"IS'SO1^. Lake Mich.
Coll: J. Ayers. 25 April 1969.
1807 Vertical #20 net tow. Sta. A-6. 41°52'00"N; 87°27'00"W. Lake Mich.
Coll: J. Ayers. 25 April 1969.
1808 Vertical #20 net tow. Sta. C-l. 42C49'40"N; 86°14'50"W. Lake Mich.
Coll: J. Ayers. 23 April 1969.
1809 Vertical #20 net tow. Sta. C-2. 42°49'40"N; 86°18'25"W. Lake Mich.
Coll: J. Ayers. 23 April 1969.
1810 Vertical #20 net tow. Sta. C-3. 42°49f10"N; 86°28'25"W. Lake Mich.
Coll: J. Ayers. 23 April 1969.
1811 Vertical #20 net tow. Sta. C-6. 42°47'40"N; 87°26'50"W. Lake Mich.
Coll: J. Ayers. 26 April 1969.
1812 Vertical #20 net tow. Sta. C-7. 42°47'30"N; 87°34'30"W. Lake Mich.
Coll: J. Ayers. 26 April 1969.
1813 Vertical #20 net tow. Sta. E-l. 44°37t30"N; 86°18'12"W. Lake Mich.
Coll: J. Ayers. 27 April 1969.
1814 Vertical #20 net tow. Sta. E-2. 44°37'00"N; 86°21f42"W. Lake Mich.
Coll: J. Ayers. 27 April 1969.
1815 Vertical #20 net tow. Sta. E-3. 44°34'00"N; 86°40'00"W. Lake Mich.
Coll: J. Ayers. 27 April 1969.
1816 Vertical #20 net tow. Sta. E-4. 44°30'18"N; se'SS'lS'^. Lake Mich.
Coll: J. Ayers. 27 April 1969.
264
-------
1817
1818
ANSP 60973
ANSP 3540
ANSP 3541
ANSP 3507
ANSP 46910a
ANSP 46921a
ANSP 46908a
ANSP 46917a
ANSP 46915a
ANSP 46914a
ANSP 46924a
ANSP 46923a
ANSP 46920a
ANSP 46905a
Vertical #20 net tow. Sta. E*5. 44°25'30"N; 87°10'18"W. Lake Mich.
Coll: J. Ayers. 27 April 1969!
Vertical #20 net tow. Sta. E-6. 44°27'48"N; 87026'25"W. Lake Mich.
Coll: J. Ayers. 27 April 1969.
Lake Michigan. 1876.
88 spp. 4234 spec..
H=2.065
R=0.539
Diatomaceae. Chicago Water Supply. Coll: B. W. Thomas. 11 May 1879.
66 spp. 21463 spec. H=1.539 R=0.633
Chicago Water Supply. Coll: B. W. Thomas. 1 Feb. 1881.
89 spp. 10223 spec. H=1.765 R=0.607
Chicago Water Supply. Coll: B. W. Thomas. 19 Feb. 1881.
38 spp. 8834 spec. H=1.159 R=0.681
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239246. Coll: K. E. Damann. Oct. 1945.
62 spp. 91551 spec. H=1.282 R=0.689
Plankton tow in Lake Mich. 111. From Field Museum Sheet #1239302.
Coll: K. E. Damann. 23 Nov. 1945.
106 spp. 154634 spec. H=1.801 R=0.614
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239241. Coll: K. E. Damann. Dec. 1945.
32 spp. 9932 spec. H=1.762 R=0.492
Plankton tow in Lake Mich. 111. From Field Museum Sheet #1239297.
Coll: K. E. Damann. 12 Jan. 1946.
108 spp. 360701 spec. H=1.640 R=0.650
Plankton tow in Lake Mich. 111. From Field Museum Sheet #1239277.
Coll: K. E. Damann. 20 Feb. 1946.
87 spp. 17575 spec. H=1.982 R=0.556
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239263. Coll: K. E. Damann. 19 April 1946.
103 spp. 93661 spec. H=2.055 R=0.557
Plankton tow in Lake Mich. 111. From Field Museum Sheet #1239315.
Coll: K. E. Damann. 10 May 1946.
113 spp. 141756 spec. H=1.777 R=0.624
Plankton tow in Lake Mich. From Field Museum Sheet #1239312. Coll:
K. E. Damann. 20 Nov. 1946.
104 spp. 45758 spec. H=2.103 R=0.547
Plankton tow in Lake Mich. From Field Museum Sheet #1239301. Coll:
K. E. Damann. 20 Dec. 1946.
110 spp. 324569 spec. H=1.227 R=0.739
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239231. Coll: K. E. Damann. Jan. 1947.
82 spp. 81596 spec. H=1.631 R=0.630
265
-------
ANSP 46909a
ANSP 46912a
ANSP 46916a
ANSP 46906a
ANSP 46919a
ANSP 46907a
ANSP 46913
ANSP 46922a
ANSP 46758a
ANSP 46771a
ANSP 46743a
ANSP 46745a
ANSP 46770a
ANSP 46764a
Plankton tow in Lake Mich» Chicago, 111. From Field Museum Sheet
#1239244. Coll: K. E. Damann. March 1947.
96 spp. 21963 spec. H=1.942 R=0.575
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239257. Coll: K. E. Damann. April 1947.
44 spp. 8698 spec. H=1.851 R=0.511
Plankton tow in Lake Mich. 111. From Field Museum Sheet #1239296.
Coll: K. E. Damann. 4 May 1947.
122 spp. 294734 spec. H=2.059 R=0.571
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239232. Coll: K. E. Damann. May 1947.
Ill spp. 150672 spec. H=2.428 R=0.485
Plankton tow in Lake Mich. 111. From Field Museum Sheet #1239300.
Coll: K. E. Damann. 5 June 1947.
130 spp. 65909 spec. H=2.534 R=0.479
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239234. Coll: K. E. Damann. July 1947.
106 spp. 202793 spec. H=2.083 R=0.553
Plankton tow in Lake Mich. Chicago, 111. From Field Museum Sheet
#1239258. Coll: K. E. Damann. 6 Aug. 1947.
36 spp. 9562 spec. H=0.947 R=0.736
Plankton tow in Lake Mich. 111. From Field Museum Sheet #1239309.
Coll: K. E. Damann. 21 Aug. 1947.
136 spp. 206338 spec. H=1.859 R=0.622
Net collection. Lake Mich. Evanston, 111. From Field Museum Sheet
#1120598. Coll: E. S. Ford. 5 June 1937.
154 spp. 28042 spec. H=2.595 R=0.485
Net collection. Lake Mich. Evanston, 111. From Field Museum Sheet
#1120613. Coll: E. S. Ford. 11 June 1937.
63 spp. 42062 spec. H=1.821 R=0.561
Net collection. Lake Mich. Evanston, 111. From Field Museum Sheet
#1120580. Coll: E. S. Ford. 20 June 1937.
92 spp. 23354 spec. H=2.095 R=0.537
Net collection. Lake Mich. Evanston, 111. From Field Museum Sheet
#1120584. Coll: E. S. Ford. 3 July 1937.
34 spp. 4785 spec. H=1.878 R=0.467
Net collection. Lake Mich. Evanston, 111. From Field Museum Sheet
#1120612. Coll: E. S. Ford. 9 July 1937.
72 spp. 16768 spec. H=l,642 R=0.616
Net collection. Lake Mich. Evanston, 111. From Field Museum Sheet
#1120606. Coll: E. S. Ford. 17 July 1937.
155 spp. 12410 spec. H=2.570 R=0.490
266
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ANSP 46757a
ANSP 46747a
ANSP 46763a
ANSP 46765a
ANSP 46769a
ANSP 46752a
ANSP 46760a
ANSP 46750a
ANSP 46744a
ANSP 46748a
ANSP 46767a
ANSP 46749a
ANSP 46768a
ANSP 46762a
Net collection.
#1120597. Coll:
141 spp.
Net collection.
#1120586. Coll:
156 spp.
Net collection.
#1120605. Coll:
128 spp.
Net collection.
#1120607. Coll:
59 spp.
Net collection.
#1120611. Coll:
29 spp.
Net collection.
#1120591. Coll:
113 spp.
Net collection.
#1120602. Coll:
75 spp.
Net collection.
#1120589. Coll:
90 spp.
Net collection.
#1120583. Coll:
73 spp.
Net collection.
#1120587. Coll:
83 spp.
Net collection.
#1120609. Coll:
104 spp.
Net collection.
#1120588. Coll:
71 spp.
Net collection.
#1120610. Coll:
109 spp.
Net collection.
#1120604. Coll:
107 spp.
Lake Mich. Evanston, 111. From Field Museum Sheet
E. S. Ford. 25 July 1937.
20771 spec. H-1.752 R=0.646
Lake Mich. Evanston, 111. From Field Museum Sheet
E. S. Ford. 1 Aug. 1937.
40397 spec. H=1.733 R=0.657
Lake Mich. Evanston, 111. From Field Museum Sheet
E. S. Ford. 23 Aug. 1937.
4928 spec. H=2.571 R=0.470
Lake Mich. Evanston, 111. From Field Museum Sheet
L. H. Trffany. 2nd Daily. 30 Aug. 1937.
17930 spec. H=1.486 R=0.636
Lake Mich. Evanston, 111. From Field Museum Sheet
L. H. Trffany. 7 Sept. 1937.
4606 spec. H=1.334 R=0.604
Lake Mich. Evanston, 111. From Field Museum Sheet
E. S. Ford. 15 Sept. 1937.
4594 spec. H=2.229 R=0.528
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 22 Sept. 1937.
20309 spec. H=1.723 R=0.601
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 24 Sept. 1937.
21217 spec. H=1.872 R=0.584
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 6 Oct. 1937.
20504 spec. H=1.705 R=0.603
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 13 Oct. 1937.
4684 spec. H=1.169 R=0.735
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 27 Oct. 1937.
25851 spec. H=1.329 R=0.714
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 12 March 1938.
8239 spec. H=1.829 R=0.571
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 16 March 1938.
6803 spec. H=1.661 R=0.646
Lake Mich. Evanston, 111. From Field Museum Sheet
W. A. Daily. 18 March 1938.
4534 spec. H=2.210 R=0.527
267
-------
ANSP 46751a
ANSP 46772a
ANSP 46756a
ANSP 46759a
ANSP 46761a
ANSP 46766a
Net collection.
#1120590. Coll:
63 spp.
Net collection.
#1120614. Coll:
34 spp.
Net collection.
#1120596. Coll:
71 spp.
Net collection.
#1120601. Coll:
63 spp.
Net collection.
#1120603. Coll:
72 spp.
Net collection.
#1120608. Coll:
58 spp.
Lake Mich. Evanston, 111. From
W. A. Daily. 30 March 1938.
8956 spec. H=1.615
Lake Mich. Evanston, 111. From
W. A. Daily. 18 April 1938.
14090 spec. H=1.361
Lake Mich. Evanston, 111. From
W. A. Daily. 27 April 1938.
59557 spec. H=1.772
Lake Mich. Evanston, 111. From
W. A. Daily. 19 May 1938.
29620 spec. 11=0.938
Lake Mich. Evanston, 111. From
W. A. Daily. 27 May 1938.
36692 spec. H=1.669
Lake Mich. Evanston, 111. From
K. Seamann. 14 Dec. 1938.
6312 spec. H=2.121
Field Museum Sheet
R=0.610
Field Museum Sheet
R=0.614
Field Museum Sheet
R=0.584
Field Museum Sheet
R=0.774
Field Museum Sheet
R=0.610
Field Museum Sheet
R=0.478
t> U. S. GOVERNMENT PRINTING OFFICE : 1970 O - 408-661
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