50 



CLARENCE L. TURNER 



Vol. XXII, No. 2 



Summary of Food Habits in Cottogaster copelandi. 



1. Midge larvae and may fly larvae are the principal articles 

 of diet. 2. Comparatively large quantities of algae and bottom 

 debris are eaten. 3. Entomostraca are taken only in very small 

 quantities. 



E. Boleichthys fusiformis Girard. 



This fish was taken mainly in the inland lakes, and in some, 

 like the Portage Lakes near Akron, it was the most abundant 

 darter. A few specimens were taken in Lake Erie near Put-in- 

 Bay, but none were taken from the streams of the state. 



TABLE 9. 



Food of Boleicthys fusiformis. 



An examination of the accompanying table shows that 

 Boleichthys is a typical darter as far as its food habits go. 

 Beginning with a diet of pure entomostraca they turn to larger 

 food as they grow larger. Amphipods, midge larvae and other 

 larger insect larvaj begin to appear next in the diet while at the 

 same time the entomostraca become less important in the food. 



