366 



ALCADE. 



NATATORES. 



ALCAD.E. 



THE RAZOR-BILL. 



Alca tordti. The Bazor-h'dl Aiik, Penn. Brit. Zool. vol. ii. p. 148. 



pica, 

 torda, 

 pirn, 

 lord a. 



Black-billed 



Razor-bill 



Black-hilled 



Razor-bill 



Black-billed 



Razor-bill 



150. 



Mont. Ornitb. Diet. 



Bewick, Brit. Birds, vol. ii. p. 176. 



17Q 



iy >? ?? >> • ' ^. 



Fi.EM. Brit. An. p. 130. 

 ,, „ „ Auk, Selby, Brit. Ornith. vol. ii. p. 435. 

 „ ,, ,, Jenyns, Brit. Vert. p. 260. 



,, ,, billed Auk, Gould, Birds of Europe, pt. xii. 

 Pingouin macrnptere, Tejim. INIan. d'Ornith. vol. ii. p. 936. 



Alca. Generic Characters. — Bill straight, large, compressed, very much 

 curved towards the point, basal half of both mandibles covered with feathers, 

 grooved towards the point, the superior mandible hooked, the under one form- 

 ing with it a salient angle. Nostrils lateral, marginal, linear, near the middle 



