179 



GENUS LI. 

 ALCA. 



Bill short, compressed, convex, furrowed trans- 

 versely, and not serrated. 



1. IMPENNIS. GREAT AUK, NORTHERN PEN- 

 GUIN, OR GAIR FOWL. 



A. rostro compresso-andpiti sulcato, macula ovata 

 utrinque ante cculos. Lath. 



The bill is 4j inches long and black, the space be- 

 tween the bill and eyes is occupied by a white spot ; 

 the head, back of the neck, and upper parts are covered 

 with short, glossy, black feathers, except a white streak 

 across the wing ; the under side of the body is white ; 

 the wings are short ; the legs black, short, and placed 

 near the vent. 



Length 3 feet. 



The female lays one egg, which is white, blotched 

 with dark rusty spots. 



RAZOR-BILL, MURRE, FALK, 



MARROT, OR SCOUT. 



A. rostro sulcis quatuor, linea utrinque alba a rostro 

 ad oculos (avis adulta.) Lath. 



" The bill is black, strong, curved towards the 



