192 College of Forestry 
p. 22) found quantities of Amnicola limosa in the stomach 
of Perch from ponds in the Adirondack mountains. 
The lot from Oneida Lake, containing 16 specimens, is far 
from satisfactory because the majority are in the youthful 
stage. The data obtained from these specimens is presented 
below. No. 1, collected in trap net on Grass Island bar, in 
18 feet of water, September 9, 1915; No. 2, obtained in 
market at Syracuse; Nos. 3-16, Lower South Bay, October 
12, 1914, seined in shallow water. 
YoutH. 45-75 mill. long. 
No. 10 (309). 66 mill. long. Stomach empty. 
Platyhelminthes. 2 tapeworms in in- 
FeStime nis M.S. AiAdeed seine eetomeroe ote 45 per cent. 
Macerated matters er sckr = acneier rer 55 per cent. 
No. 11 (309). 71 mill. long. 
Crustacea. 100 Bosmina longirostris... 50 per cent. 
Macerated ma tuer tire ce cra rein 50 per cent. 
No. 12 (309). 68 mill. long. Stomach empty. 
Macerated matter in intestine. 
No. 1/3’ (309). 75 mull. long. 
Inseets. Dragon-fly nymphs, fragments 60 per cent. 
Macerated matter in intestine........ 40 per cent. 
No. 14 (309). 75 mill. long. 
Crustacea. Daphnia hyalina ...... 
AUOFOUE TS oho, Sioersciate oes 
Epischura lacustris, 1 
male, 1 female....... 
45 per cent. 
Insecta. Chironomid larvae (a few) 5 per cent. 
Maceratedwn atte rar erie er asic into iiic ie 50 per cent. 
No. 15 (309). 70 mill. long. 
Crustacea. Daphnia hyalina, many... 20 per cent. 
Platyhelminthes. 12 Planarians...... 50 per cent. 
Macerated matters. ae sete eee ceiomere 30 per cent. 
No. 16 (309)... 45 mill. long. Stomach empty. 
YoutH. 75-100 mill. long. 
No. 3 (309). 98 mill. long. 
Insecta. 5 damsel-fly nymphs ....... 85 per cent. 
Crustacea. Entomostraca, Hyalella .... 5 per cent. 
Macerabed matter ere tscterst tehseususiers soe 10 per cent. 
No. 4 (309). 100 mill. long. 
Insecta. Damsel-fly nymphs, fragments. 100 per cent. 
