The Food of Fresh-Water Fishes. 



469 



Food of Smaller Families.— Continued. 



Number of 

 Specimens Examined 



10 



KIXDS OF FOOD. 



Ratios in which each Element of Food was found. 



Terrestrial 



Homoptera 



Aquatic 



Corisa 



6. Orthoptera (Tettix) . . . 



7. Ncnroptera (larvte). . . 



Phrygaiieidas 



Odonata 



Libel lulinfe 



Agrion 



Epheineridte 



Ilexagenia 



V. Arachnida 



VI. Crustacea 



1. Decapoda (Cambarus) 



2. -1 inphlpoda 



3. Isopoda ( Asellus) 



Em'O.mo.straca 



4. Cladrtcera 



5. Ostracoda (Cypris) 



6. (Jopepoda 



VII. Vermes (leech) . . . 



VIII. BllYOZOA 



(Plumatella) 



IX. Protozoa 



(Dillliigia) 

 VEGETABLE FOOD 



Miscellaneous 



Terrestrial 



Aquatic 



Lemna 



Wolffia 



Algte 



Nostoc 



Distillery .Slops 



MUD andSxIND 



17 



.02 



+ 

 + 



.29 



.25 

 .02 

 .15 

 .04 

 .04 



+ 



+ 



+ 



+ 



.15 



.13 

 .02 

 .07 

 .02 

 .02 



+ 



+ 



+ 



.11 

 .11 



.50 



.50 



+ 



+ 



+ 

 .04 



.04 



+ 

 .04 



+ 



+ 



.32 



.16 



+ 



+ 

 + 

 + 



.16 

 .64 



+ 

 + 



+ 

 + 

 + 

 .66 



.66 

 ..33 



+ 



+ 



+ 



.01 



.01 

 .01 



+ 



.41 

 .38 

 .01 



4- 



.02 

 + 



.02 



+ 



..S3 

 .33 



