10 Food of Fishes of Winona Lake 



51 mm. Partially digested mass of fish flesh. 

 40 mm. 5 odonata larvae. 

 Eupomotis gibbosus L. (sunfish). 



55 mm. 25 Chironomus larvae; some insect fragments; 4 Planorbis; 



3 Physa; a few algal filaments; some silt. 

 65 mm. 1 Tanapus larvae; 1 Planorbis; a few insect fragments. 

 25 mm. 7 Chironomus larvae; 1 nematoda; 3 ostracoda; 1 Ceratopogon; 



a few pieces of plant tissue. 

 64 mm. 48 Chironomus larvae; 1 Ceratopogon; 1 ephemerid larvae; 3 

 Physa. 

 Notropis heterodon Cope (variable-toothed minnow). 



50 mm. Unicellular algae; filamentous algae; 1 microscopic beetle. 

 Esox vermiculatus Le Sueur (grass pike). 

 95 mm. 3 Leuceruthrus. 



Collection 6 



August 2. 1919. Rushes; sand; three feet; clear; cloudy and foggy; 10:00 

 a. m. ; seine. 



Fishes examined in this collection 



Lepomis pallidus Mitchill (bluegill). 



90 mm. 3 Ephemerida larvae; 4 Tanypus; 2 rotifera; 1 damsel-fly; 

 5 Chironomus larvae; 2 cladocera; 3 Physa. 

 Labidesthes sicculus (skipjack) Cope. 



77 mm. Empty. 



76 mm. Empty. 



76 mm. Fragments of small insects. 



68 mm. Empty. 



75 mm. Empty. 



80 mm. Fragments of plant tissue. 



Collection 7 



August 7, 1919. Potamogeton, Elodea, rushes; peat very soft; three feet; 

 clear; cloudy; 3:00 p. m. ; seine. 



Fishes examined in this collection 



Perca flavescens Mitchill (yellow perch). 



115 mm. 10 Ephemerida larvae; 5 Hyalella. 

 75 mm. 1 Physa; some plant tissue. 

 80 mm. 3 odonata larvae; 1 tricoptera. 



82 mm. 2 Dytiscus larvae; 1 Hyalella; 1 Physa; some insect fragments; 



1 ostracoda; 1 Chironomus larvae; 1 odonata nymph. 



83 mm. 2 tricoptera larvae; 4 Chironomus larvae; 1 Physa; 3 ephemerida 



larvae; 10 tricoptera cases; several insect legs and pieces of plant 

 tissue. 



84 mm. About one-third of the content consists of Potamogeton; 7 



Tricoptera larvae; 2 Hyalella; 1 ostracoda; 5 Chironomus larvae; 

 mass of macerated insect larvae. 



