NORTHWESTERN LAKES OF THE UNITED STATES. 
137 
Table 13. — Geographical distribution of plankton Crustacea in lakes examined — Continued. 
Species. 
Lake 
Union, 
Wash., 
Dec. 7, 
18S6. 
(Aug. 
10, 1913, 
2 
p.m.i). 
Lake 
Wash- 
ington, 
Wash., 
Nov. 24, 
1806. 
(Aug. 
9, 1913, 
4 
p.m.i). 
Alturus 
Lake, 
Wash., 
July 23, 
1896. 
Crater 
Lake, 
Oreg. , 
Aug. 21, 
1896. 
(Aug. 
1,1913, 
11 
a. m.i). 
Tsilt- 
coos 
Lake, 
Oreg., 
Dec. 1, 
1896. 
Lake 
Tahoe, 
Calif., 
July 22, 
1913, 
9 a.m. 
Marsh. 
July 23, 
1913, 
4 p.m. 
Truckee 
River, 
July 23, 
1913, 
5 p.m. 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
( 2 ) 
( 2 ) 
( 2 ) 
Alona affinis Leydig 1860 
( 2 ) 
( 2 ) 
quadranguiaris 0. F. Muller 1785 
Bosmina longirostris var. brevicomis O. F. Muller 1785 
longispina Leydig 1860 
Camptocercus rectirostris Schoedler 1862 
Ceriodaphina recticulata Jurine 1820 
Chydorus sphaericus O. F. Muller 1785 
X 
( 2 ) 
( 2 ) 
( 2 ) 
x ( 2 ) 
( 2 ) 
( 2 ) 
( 2 ) 
( 2 ) 
( 2 ) 
( 2 ) 
-(*y 
( 2 ) 
X 
v trick's var. americanus Marsh 1893 
Daphnia longispina var. hyalina Leydig 1860 
X 
X 
X 
X 
X 
tuiIp.v. nrnhahlv midrlfindorffiana 
( 2 ) 
X 
X 
Diaphanosoma brachyunun Lieven 184S 
leuchtenbergianum Fischer 1850 
Diaptomus ashlandi Marsh 1893 
sp. (no mature males) 
Drepanothrix dentata Sars 1861 
Epischura nevadensis Lilljeborg 1889 
Eurycercuslamcllatus O. F. Muller 1785 
Graptoleberistustudinaria Fischer 1848 
Hyalella azteca knickerbockeri Bate 1862 
Oxyurella tenuicaudis Sars 1862 
PleiirnxnsriAnt.irji1a.fiis Rir^e 1877 
X 
( 2 ) 
X( 2 ) 
X 
x(») 
m 
( 2 ) 
X 
( s ) 
( 2 ) 
8 
( 2 ) 
procurvatus Birge 1878... 
( 2 ) 
striatus Schoedler 1863.. 
PnlvnhemiiQ neriimlns TJnnA 1761 
X 
Scapholeberis mucronata O. F. Mailer 1785 
Sida crystallina O. F. Muller 1785 
( 2 > 
(s ) 
Species. 
Fallen 
Leaf 
Lake, 
Calif., 
July 25. 
1913, 
10 a. m 
math 
Lake, 
Oreg., 
’ July 29, 
1913, 
’ 3 p.m. 
Green 
Lake, 
Wash., 
Aug. 9, 
1913, 
11 a. m. 
Para- 
dise 
Lake, 
Wash., 
Aug. 13, 
1913, 
' 11 a. m. 
Lake 
Sam- 
ma- 
mish, 
Wash., 
1 Aug. 13, 
1913, 
’ 10 a. m, 
Cottage 
Lake, 
Wash., 
Aug. 13, 
, 1913, 
4 p.m. 
> Swan 
Lake, 
Wash., 
, Aug. 14 
1913, 
10 a.m 
Cow 
Lake, 
Wash., 
, Aug. 14 
1913, 
. 2 p.m. 
Lake 
Cres- 
cent, 
Wash., 
' Aug. 17, 
1913, 
9 a. m. 
Alona quadranguiaris O. F. Muller 1785 
x 
Bosmina longirostris O. F. Muller 1785 
X 
X 
longispina Leydig 1860 
X 
obtusirostris Sars 1861 
X 
X 
X 
Cyclops bieuspidatus Claus 1857 
X 
X 
X 
modestus Herrick 1883 
X 
viridis var. parcus Herrick 1882 
X 
X 
Daphnia longispina O. F. Muller 1785 
X 
X 
longispina var. hyalina Leydig 1860 
X 
X 
X 
pulex De Geer 1778 
X 
Diaphanosoma leuchtenbergianum Fischer 1850 
X 
X 
X 
X 
X 
X 
x 
Diaptomus ashalndi Marsh 1893 
Oregon ensis Lilljeborg 1889 
X 
X 
washingtonensis Marsh 1907 
X 
Epischura nevadensis Lilljeborg 1889 
nevadensis var Columbia Forbes 1893 
X 
X 
x 
x 
X 
X 
X 
Scapholeberis mucronata O. F. Muller 1785 
x 
1 Record of specimen for date in parentheses in boxhead. * Record of specimen for a different date. 
