Dec, 1921 



FOOD OF OHIO DARTERS 



53 



TABLE 12. 

 Food of Etheostoma coeruleum. 



Summary of Food in Etheostoma cceruleiim. 

 1. Entomostraca are taken to a limited extent by the younger 

 specimens but are a negligible factor in the food of the older 

 fish. 2. May fly larvae and midge larvae are the chief food in 

 all stages over 15 mm. in length. 3. Larger insect larvae, snails, 

 and crayfish enter into the food of the larger specimens. 



H. Etheostoma variatum Kirtland. 



Only six specimens of this fish were taken. Three were 

 taken in Little Darby Creek and three in Big Walnut Creek, 

 both branches of the Scioto. One was 33 mm. in length, one 34 

 mm., two were 35 mm., one was 36 mm. and one 58 mm. Not 

 enough data was secured to warrant any definite statement 

 concerning their food habits, but many fly larvae and midge 

 larvae formed the only food of four and the main food for the 

 remaining two. One had eaten 20 per cent of sand and debris 

 and the other had taken a few mites in addition to may fly and 

 midge larvae. 



Summary of food in Etheostoma variatum. 



1. In six specimens may fly and midge larvae formed almost 

 the only food. 



