ANAS NIGRA. 
SCOTER. 
Generic Character. ^S'^^ Anas Cygtius, (ferns). 
Synonyms. 
Anas Nigra. ^ Lin, Syjl. u p. 196. 7. 
Scoter or Black Diver. Br. Zool, 2. 273. Ih.foL 
253. Laih. Syn. 6. p. 480. 36. Mont. Orn, Bi^l. 
Bewick's Br. Birds^ Ft. 2./>. 288. 90, 
JL H E length of this fpecies is about twenty-one Inches> 
the breadth two feet eight inches, and it weighs about 
three pounds and a half : bill Ihort, broad, and flattened 
at the tip, the bafe is furnifhed with a hard protuberance, 
which projedts nearly three-fourths of an inch in height, 
it is divided in the centre by a deep furrow ; edges of the 
bill ferrated, the fides of the upper mandible are furrowed 
near the edges, the furrow is irregular, and has much the 
appearance of a feam clumfily fewed ; the bill is not furnifhed 
with a nail at its extremity, as is common with moil of the 
genus ; feet large and broad, and placed far behind ; the tail 
confifts of fixteen ftiarp-pointed feathers, of which the two 
middle ones are the longefl. Colour of the female dufky 
black, intermixed with brown and grey, the bill is formed as 
in the male, but the protuberance is not fo large, the colour 
of this knob is fubjed to vary ; we have feen it quite red, and 
in others green^ but this may proceed from difference of age. 
The 
