The Relation of Mollusks to Fish in Oneida Lake 1738 
The stomach was practically empty as was also the in- 
testine, the latter containing only a piece of molluscan shell 
and a few unicellular plants. 
No. 18 (8). 130 mill. long. Stomach empty. 
Hankinson (1908, p. 205, 249) examined specimens in 
April, May, July and August, and found the food to consist 
of midge larvee, filamentous alge (Spirogyra), entomostra- 
cans and Protozoa (Arcella). 
* Notropis heterodon (Cope). Minnow. 
One specimen in eighteen had eaten univalve Mollusea. 
Entomostraca and insects form the principal food. Mollus- 
can food is not over one per cent. (Forbes, 1885, a, p. 85). 
Notropis whipplii (Girard). Steel Colored Minnow. 
One specimen in 33 had eaten a small Lymnea; less than 
one per cent. molluscan food (Forbes, 1885, a, p. 87). 
* Tctalurus punctatus (Rafinesque). Channel Cat; Fiddler. 
Forbes (1888, b, p. 457) examined 43 specimens of this 
species, taken during spring, summer and autumn. The 
range of food may be expressed as follows: 
Vegetation (filamentous alge, Potamogeton, Lemna)..... 25 per cent. 
“NIGHTS eS Pacts pane Sener ep Chat rial ACLS CRI IAG AICHE a OR cre erie 15 per cent. 
Insecta (Chironomus, Hexagenia, Odonata, Ephemeride).. 44 per cent. 
Miscellaneous (worms, Bryozoa, fish).................. 16 per cent. 
Among the last item may be mentioned a dead rat, pieces 
of ham, pieces of dead fish and other animal debris. 
Of the mollusks, eight genera were represented, as noted 
below: ' 
Pleurocera, taken in September. 
Campeloma, taken in October. 
Lioplex subcarinata, taken in September. 
Amnicola, taken in October. 
Vivipara, taken in April, September and October. 
Planorbis, taken in October. 
Unionidae, taken in September. 
Anodonta, taken in August and October. 
