Lake Maxinkuckee, Physical and Biological Survey 297 



toms, Schilbeodes gyrimis, the pectoral spine of one of which had 

 pierced the stomach wall of the red-eye that swallowed it, and was 

 imbedded in the flesh of the body wall. Other small fish that could 

 be identified amongst the food of the red-eyes were Etheostoma 

 iowse, Labidesthes sicculus, and Notropis whipplii. 



On several occasions some of the small red-eyes were kept over 

 night in minnow buckets along with minnows, and in nearly every 

 instance they improved the opportunity and swallowed some of the 

 minnows. From the stomachs of these red-eyes, in addition to the 

 small fish just mentioned, there were taken also specimens of 

 Pimiephales notatus, Notropis cornutus, Fundulus dispar, and 

 Fundulus diaphanns meyiona. 



The larger red-eyes, four inches and over, ate mostly crawfish, 

 minnows, and darters of the various kinds just mentioned. 



For parasites, Ergasilus centrarchidarum was found upon the 

 gill-filaments of even the smallest specimens examined. With rare 

 exceptions the gills of every fish contained some of these parasites, 

 and often 50 to 75 could be obtained from a single fish. To the 

 gill-arches of the larger specimens were attached Achtheres am- 

 bloplitis; these were much less plentiful than the Ergasilus and 

 many of the fish were entirely free from them. 



Leeches were found in the mouth or on the fins of about one- 

 third of the fish, while cestodes and trematodes were nearly always 

 present in the stomach and intestine. 



18. Warmouth Bass. Chxnobryttus gulosus. 



Only three specimens of this fish were examined, and nothing 

 could be determined as to the food of any of them. On the gills 

 of one were found three specimens of Ergasilus centrarchidarum 

 and on another seven. No other parasites were found. 



19. Bluegill. Lepomis pallidns. 



One hundred and fifty of these sunfishes were examined, includ- 

 ing many small ones caught in the minnow seine. 



The smaller ones, like the smaller red-eyes, had eaten mostly 

 plankton. From the stomach of one, three-quarters of an inch in 

 length, were taken many Bosmina, five or six Cyclops, one Daphnia, 

 and much that was indistinguishable. From another fish, two and 

 a half inches long, were secured two green beetles and the re- 

 mains of other insects. In a third, 65 millimeters in length, were 

 many Bosmina. two blue, and 12 red, water mites, and two insects 

 like ants. A fourth, 18 millimeters in length, contained several 

 Cyclops, Bosmina, and Daphnia like the first one, but in addition 

 there were two copepodid larvte of Achtheres. As these larval 



