18 Food of Fishes of Winona Lake 



65 mm. long; a mass of about 15 cmm. of portions of damsel-flies; 

 heads; about 15 pairs of wings, legs and abdomen. 



175 mm. 5 fish (Labidesthes sicculus Cope) 82, 77, 85, 63 and 76 mm. 

 long; fragments of 3 damsel-flies. 



344 mm. 2 chelipeds; 20 mm. x 5 mm. of a large cray-fish. 

 Pomoxis sparoides Lacepede (black crappie). 



162 mm. About 72 cmm. of half-digested macerated fragments of adult 

 insects and insect larvae, unable to identify the insects to which the 

 fragments belong but most of them appear to be parts of tricoptera ; 

 2 tricoptera; the abdomen and wings of a dipteron; 1 insect. 



136 mm. Stomach well filled with fragments of tricoptera larvae; re- 

 mainder fragments of adult insects and insect larvae, stomach well 

 filled. 



131 mm. Stomach well filled with fragments of adult insects and tricoptera 

 larvae; 1 rhyncophora beetle very small. 



129 mm. Head portion of a tricoptera larva. 

 Dorosoma cepedianum Raf. (hickory shad). 



368 mm. Stomach completely filled with mud containing very small ani- 

 mals and plants such as algal filaments, ostracods, and fragments of 

 cladocera. 



374 mm. Stomach completely filled with mud containing very small ani- 

 mals and plants such as algal filaments, ostracods, and fragments of 

 cladocera. 

 Esox lucius Lacepede (pike). 



399 mm. Empty. 

 Chaenobryttus gulosus Cuv. and Val. (Warmouth bass). 

 86 mm. Small portion of encrusted plant tissue. 



Collection 23 



July 20, 1920. Algae, Chara, and Potamogeton; blue mud very oozy; 

 twelve feet; muddy; clear; 3:00 p. m. ; seine. 



Fishes examined in this collection 



Lepomis pallidus Mitchill (bluegill). 



120 mm. Stomach filled with plant tissue and elytra 6 mm. long of a 

 beetle. The plant tissue apparently Myriophyllum. 



113 mm. 1 Dytiscid larva; 3 tricoptera larva worms; small mass of plant 

 tissue; 4 Simulium larvae; 6 Chironomus larvae; a mass of half- 

 digested insect and larvae fragments. 



Ill mm. Stomach well filled with a conglomerated mass of half-digested 

 plant and animal tissue; many fragments of insect legs; pieces of 

 chitinous covering. 



117 mm. 2 Chironomus larvae; 1 piece of plant tissue 15 mm. x 2 mm.; 

 remainder of stomach filled with partially digested fragments of a 

 grasshopper. 



119 mm. A few fragments of odonata nymphs; tricopteron larva; head 

 of adult damsel-fly; 1 Chironomus larva; fragments of haliplidae 

 beetle larvae; 4 complete laiwae; a portion of a very small water 

 beetle 2 mm. in diameter; 4 cmm. of Potamogeton plant tissue; 

 numerous insect legs and leg fragments. 



