142 Wisconsin Academy of Sciences, Arts, and Letters, 
Table 1.—Continued. 
Organism 
Lake Winnebago 
Lake Butte 
des Morts 
Fox 
River, 
Omro 
2 ^ 
§ 
no 
a 
SSeo 
Oo* 
a 
_Os 
|| 
a 
kO 
Is 
.1 a 
fi 
a 
ilii 
§ 
1 
o 
bS 
a 
ec 
t 
o 
6.22 
3.33 
1.86 
3.91 
.47 
1.99 
13.73 
23.01 
.93 
4.93 
4.97 
M, truncatum . 
2.48 
.62 
P. variabile . 
.66 
9.15 
1.92 
74.63 
19.37 
P. compressum . 
35.28 
13.52 
29.59 
.47 
68.39 
19.99 
P. c. pdlvcidum . 
.93 
6.84 
1.33 
11.86 
28.97 
.47 
17.36 
58.17 
P. 8. cristaium . 
1.28 
.93 
3.33 
P. medianutn . 
.66 
1.28 
.93 
8.71 
P. vesiculare . 
1.28 
7.37 
P. elavatutn . 
1.28 
1.92 
3.33 
P. punctatum simplex 
1.28 
P. saraenH . 
1.28 
4.93 
1.99 
.62 
P. pauperculum . 
28.75 
.93 
1.33 
4.37 
P. tenuissimum . 
8.69 
4.93 
54.52 
1.24 
P. adatnsi affine . 
.66 
3.73 
P. faUax . 
.93 
P. strengi . 
1.92 
.62 
P. griseolum . 
1.33 
P. walkeri . 
1.33 
P. milium . 
.66 
. 
P. splendidulum . 
4.03 
P. glabellum . 
1.86 
P. decorum . 
1.24 
P. virginicum . 
.62 
P. minusculum . 
2.48 
P. species . 
6.35 
5.79 
4.93 
26.21 
4.97 
PI. acuta . 
38.26 
5.19 
.93 
4.26 
2.66 
L. subcarinata . 
.93 
1.99 
3.73 
102.03 
C. rufum . 
3.73 
31.24 
B. tentaculata . 
31.37 
1.92 
7.37 
25.77 
13.46 
161.45 
53.59 
