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DIVISION 2. 
BEAK EQUAL AT THE BASE. 
ANAS MARILA. 
SCAUP DUCK. 
Black; shoulders waved cinereous ; bel- 
ly and spot on the wings white. 
Anas Marila, Lin. Gme. 
Anas frgenata, (female) Sparman. 
Le Millouman, Buffon. 
, Scaup Duck, Pen. Lath. Mont. Bew. 
White Faced Duck (female) British 
Miscellany. 
These birds are supposed to have derived 
their name for feeding on Scaup or broken 
shell-fish. 
Most naturalists have stated that the fe- 
male of the Scaup Duck was similar in 
plumage to the other sex ; but the truth is 
that the dissimilarity is so great between 
the sexes, as to have occasioned the female 
