FOOD OF BULLHEADS 

 Table 11. — Lake Tetonkaha {10), August 9, 1926, 12 inches 



37 



Table 12. — Lake Oakwood {11), August 11, 1926, 8 inches 



1 Empty. 



Table 13. — Average per cent volume of the principal foods 



The preceding data show that bullheads have a decided preference 

 for animal food in the form of crustaceans and ijisect larvae. Bivalve 

 mollusks and snails are quite common in their diet. Depending on 

 the lake, from 89 to 99 per cent of the food eaten by bullheads in the 



