POOD HABITS OF MALLARD DUCKS. 



35 



Table II. — Items of animal food identified in stomachs of mallard ducks and the number 

 in which found — Continued. 



Kind of food. 



Common 

 mallard. 



Black 

 duck. 



Southern 

 black 

 duck. 



Total number of stomachs examined 



Class Pelecypoda (Bivalves)— Continued. 

 Veneridae. 



Gemma gemma 



Gemma purpurea 



PapMa staminea • 



Sphseriida!. 



Corneocyclas abdita 



Corneocyclas milium 



Corneocyclas splendidula 



Corneocyclas variabile 



Corneocyclas vesiculare , 



Corneocyclas virginicum ? 



Corneocyclas sp 



Sphxrium partumeium 



Splixrium sp 



Cardiidse. 



Cardium gronlandicum 



Unionidse. 



Unto sp 



Nuculidse. 



Nucula delpMnodonta 



Nucula proxima 



Mytilidse. 



Mytilus edulis (common mussel) 



Modiola plicatula. 



SxJBKiNGDOM CHORDATA (Vertebrates). 

 Class Pisces (Fishes). 



Unidentified 



Anguillidaj (eels). 



Anguilla chrysypa 



PcEciliidse (killifishes). 



Fundulus sp 



Cjrprinodontidse (top minnows). 



Cyprinodon variegatus - 



Class Amphibia (Frogs, Toads, akd Salamanders). 

 Ranidee (frogs) 



Class llammalia (Mammals). 



1,725 



1 



1 



3 

 1 

 1 

 1 

 1 



36 



'Bit of mammal bone. 



