44 



CLARENCE L. TURNER 



Vol. XXII, No. 2 



TABLE 2. 

 Food of Percina caprodes from inland lakes. 



TABLE 3. 

 Food of Percina caprodes from streams. 



The record of the Lake Erie specimens shows that there are 

 three rather well-defined periods in the food habits. The young- 

 est subsist almost entirely upon entomostraca although minute 

 amphipods and midge larvae are also taken to a limited extent. 

 During the second period amphipods, insect larv^ and ento- 



