FOOD HABITS OF SHOAL-WATER DUCKS. 



67 



Table II. — Items of animal food identified in the stomachs of the ducks treated in this 

 bulletin and number of stomachs in which found— Continued. 



Kind of food. 



Gad- 

 wall. 



Bald- 

 pate. 



Green- 

 winged 

 teal. 



Blue- 



winged 

 teal. 



Cinna- 

 mon 

 teal. 



Pin- 

 tail. 



Wood 

 duck. 





417 



255 



653 



319 



41 



790 



5 



12 

 13 



1 



12 

 10 



413 



Class Gastropoda — Continued. 

 Columbellidae. 

































Turbonillidae. 















Pyramidellidae. 





























Auriculidae. 



1 













Olividae. 



1 













littorinidae. 











1 





Littorina irrorata 



1 













Cerithiidae. 



Bittium nigrum 











3 

 1 



5 

 11 



4 

 8 





























































Cerithidea tenuis , 















Rissoidae. 





2 











BUMnella texana 



2 













Bithinella sp . 













1 



Fluminicola nuttalliana 













1 







1 













Assimineidae. 



Assiminea affinis 











1 

 1 





Valvatidae. 



Valvata virens 















Valvata tricarinata 





1 



2 

 3 



1 







Neritidae. 



Neritina reclivata 







11 



40 



7 



15 



1 





Neritina virginea 



25 



1 



12 











Neritina sp 









Subkingdom CHORDATA (Vertebrates). . 

 Class Pisces (Fishes). 

 Unidentified, teeth, scales, etc 



2 



3 



3 

 2 





5 



Poeciliidae. 



Fundulus sp 





Class Amphibia (Feogs, Toads, and Sala- 

 manders). 

 Ranidae (frogs). 



Unidentified 









2 



Rana sp 



I 









1 







1 











