NATATOIfES. 



RAZOR-BILL. 



473 

 ALCA DM. 





THE RAZOR-BILL. 



Alca torda. 



Alca torda, The Razor-bill Auk, PENN. Brit. Zool. vol. ii. p. 148. 



* 150. 



MONTAGU. Ornith. Diet. 



11 



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

 179. 



FLEM. Brit. An. p. 130. 

 Auk, SELBV, Brit. Ornith. vol. ii. p. 435. 



JENYNS, Brit. Vert. p. 260. 

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



Pinyouin macroptere, TEMM. Man. 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 forming with it a 



