The Relation of Mollusks to Fish in Oneida Lake 183 
Five genera of mollusks are listed. 
Amnicola, taken in October. 
Vivipara, taken in July and November. 
Physa, taken in November. 
Planorbis, taken in November. 
Spherium, taken in October. 
The food of the young consists of Entomostraca (57 per 
cent.) and Chironomus larvie (37 per cent.). A few water- 
spiders and amphipods make up the balance. As the fish 
increases in size, less Entomostraca are eaten and more in- 
sects, specimens two and three inches long having the ratios, 
Chironomus larvee (30 per cent.), Cortxa (25 per cent.), 
Neuroptera (14 per cent.), Crustacea (about 30 per cent. ). 
Hankinson (1908, p. 212) found the Bluegills of Walnut 
Lake to feed upon eaddis-fly larvee, crawfish, midge larve 
and pup, Heptagenia, Hexagenia, and WSialis nee until 
the middle of May, after which crawfish, grasshoppers, 
crickets, beetles, and other land insects, together with ento- 
mostracans, were the chief articles of diet. No mollusks are 
recorded. Reighard (1915, p. 233) found a very large per- 
centage of vegetation in three specimens, including Hlodea 
and Chara. Bryozoan statoblasts, heads, wings and legs of 
insects, apparently adult Diptera, were also present. Mar- 
shall and Gilbert (1905, p. 518) examined 30 specimens, 20 
of which contained food; 9 contained plant tissue, 13 plank- 
ton, 9 insect larvae, 2 Gammarus, 1 leeches, and 1 snails, 
mostly Physa ancillarva 
* Lepomis megalotis (Rafinesque). Long Hared Sunfish. 
The food of this sunfish is said by Forbes (1880, a, p. 
53) to be as follows, based on the examination of three speci- 
mens: Chironomus larve (60 per cent.), mollusks (16 per 
eent.), Allorchestes, Asellus, Corixa, gyrinid larvee, and a 
few chrysomelid larve. One specimen (taken in June) con- 
tained the remains of an Anodonta. Hankinson (1908, p. 
212) records, from three specimens, May-fly larvee, dragon- 
fly larvee, caddis-fly larvee, and leeches. 
