The Food of Fresh-Water Fishes. 



473 



foOD OF ^i\A]-R\Y>x,.— Continued. 



Number of 

 Specimens Examined. 



KINDS OF FOOD. 



Ratios in which each Element of 

 Food was found. 



Acrididse 



7. iVcm-op^era (larvpe) 



Phryganeidse 



Sialidje 



Odonata 



Libelluliiiie 



AgrioninEe 



Ephemeridte 



Hexagenia 



IV. Arachnida 



Y. Crustacea 



1. Decfi/JorZa (Cambarus) 



2. Amp/iipoda ( Allorchestes) 



3. Isrqooda ( Asellus) 



P]NTOMOSTRACA 



4. Cladocera 



5. Ostracoda 



6. Cupepoda 



VI. Vermes , 



Hirudinei 



Xeniatodes 



VII. Eryozoa (Pluraatella). 



VIII. Porifera (Spongilla). 



IX. Protozoa (Difflugia) . . . 



VEGETABLE FOOD 



Miscellaneous 



Aquatic 



Lemna 



Wolffia 



Potamogeton 



Algse .' 



Distillery slops 



MUD 



.30 



.07 



.23 



.23 



.101 



.10 

 .02 

 .06 



+ j 



+ 



.01 



.01 



.02; 



.10 



.01 



.10 



.01 



+ 



.01 



.01 



+ 



.08 



.05 



+ 



.19 



.02 



.08 



.07 



.02 



.01 



+ 



.01 



.01 



.01 



+ 

 + 

 + 

 + 



.04 



+ 

 .03 



+ 



+ 



+ 



.02 



.01 



+ 



