The Relation of Mollusks to Fish in Oneida Lake 231 
No. 1. 
No. 8. 
GRoUP 1. INFANCY, body 25 mill. long. 
Stomach (108). 
Harudimesd. leech) 4 mill ong: .5.........-...- 20 
IMSAChas  TOmlaAn ves. eecurra eaten tte eel es, ¢ , 
Bc adnle fica wae eemneaie. Co \ 20 
Intestine with fragments of insects. 
GROUP 2. YOUTH. 
Body 40 mill. long (108). 
Intestine contained mass o! partly digested material 
a few legs of insect larve. 
Body 60 mill. long (108). 
Stomach. 
Crustacea. 100 Hyalella knickerbockeri....... 60 
Insecta. 2 damsel-fly nymphs (Enallagma, ) 
2 Aanx junius, nymphs......... 0) 
2 chironomid Varyeete se. eels 2 
1 caddis-fly larva, fragment..... 
Wematoda. 4 round worms: G:j0a) suede n-- 2 - 10 
Plants. Small pieces of plant leaves...... 10 
Intestine, middle portion. 
Insecta. Wing cases of beetles............... 5 
Legs and fragments of insects....... 55 
Plants. Piece of leaf of tree, 8x5 mill...... 40 
Intestine, near anal end. 
per cent. 
per cent. 
including 
per cent. 
per cent. 
per cent. 
per cent. 
per cent. 
per cent. 
per cent. 
Fragments of insects, including legs and pieces of thorax. 
Body 41 mill. long (108). 
Stomach and intestine empty. 
Body 41 mill. long (108). 
Crustacea. 200 Hyalella knickerbockeri........ 45 
Mollusca. 3 Ancylus parallelus .............. 5 
Insecta. 
10 beetle larve (Cnemidotus)....... 
PL COP SURLOUG arn ac, eae ries a 
Ay AMV ee wars eterno coe er ee ee 
head of small wasp: ..3)0.42 2s: 
Cathbaetis nymphs... ....-:-- 
Gortsa.. dea Ps iste - es. ie ae 
Body 65 mill. long (108). 
Stomach empty. 
Intestine with 4 round worms (Nematoda). 
beetles (Hydrovatus pustulatus) . 
45 per 
9 
0 
6 
wine, -or midgen(fly) 2.25. .-4 she 
6 
] ) per 
2 
1 
per cent. 
per cent. 
r cent. 
r cent. 
