]G8 CLANGULA. 



very slender, with a broad lobiform membrane connected at 

 the base with the bilobatc marginal membrane of the inner 

 toe ; anterior toes long, the third nearly double the length of 

 the tarsus ; interdigital membranes full. Claws small, arcu- 

 ate, compressed, rather obtuse, that of the middle toe curved 

 outwards, internally expanded, and rounded. 



I'lumage dense, blended, soft ; on the head very soft and 

 rather long ; wings short, narrow, convex, pointed ; the 

 second quill longest, but scarcely exceeding the first ; inner 

 secondaries elongated, and curved outwards. Tail short, 

 graduated, of sixteen stiffish pointed feathers. 



These birds inhabit the cold and temperate regions of the 

 north. They feed chiefly on mollusca, for which they dive ; 

 have a quick direct flight, sit rather lightly on the water, 

 and are more active than the Scoters, which they, however, 

 resemble in their habits. 



