FOOD HABITS OF SHOAL-WATER DUCKS. 



57 



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. 



Total number of stomachs examined 



417 

 21 



255 

 2 



653 



61 



319 



8 



41 

 1 



790 



35 



1 



1 

 1 



17 



413 



Class Crustacea— Continued. 

 Order OSTRACODA. 



Unidentified ostraeods (bivalved crustaceans) 



Cytheridae. 



1 



Cyprididae. 





























Order AMPHIPODA. 





2 



11 



1 

 1 



4 





5 



Corophiidae. 





















Gammaridae. 





1 





















2 













1 











4 



13 









Orchestiidae. 











1 











1 



1 















1 





1 





Podoceridae. 





1 





Order c6pEPODA. 





1 

 2 











Order ISOPODA. 











4 

 1 



1 



Oniscidae. 



1 









1 



Asellidae. 



Asellus sp. (asel) 











1 

















1 



Order DECAPODA. 



Suborder Macrura. 

 Crangonidae. 



Unidentified shrimps 













2 





Crangonyx gracilis (shrimp) 









1 







Astacidae. 



Unidentified crawfishes 



2 









4 



2 



Cambarus propinquus '. 











1 



Cambarussp 















1 



Suborder Brachyura. 

 Unidentified crabs 



2 





1 



1 





18 

 10 





Pilumnidae. 



Hexapanopeus angustifrons 





Neopanope texana (Say crab) 



1 













