LITTLE AUK. 



465 



NATATORES. 



ALCAD^E. 



THE LITTLE AUK, 



OR COMMON EOTCHE. 



Mergulus melanoleucos. 



Alca alle, Little Auk, PENN. Brit. Zool. vol. ii. p. 158. 



MONTAGU, Ornith. Diet. 



BEWICK, Brit. Birds, vol. ii. p. 185. 



Merguhis melanoleucos, Common Botch, FLEM. Brit. An. p. 135. 



SELBY, Brit. Ornith. vol ii. p. 430. 



JENYNS, Brit. Vert. p. 259. 



Little Auk, GOULD, Birds of Europe, pt. iv. 



Uria alle, Guillemot nain, TEMM. Man. d'Omith. vol. ii. p. 928. 



MERGULUS. Generic Characters. Bill shorter than the head, thick, broader 

 than high at the base ; culmen arched ; upper mandible indistinctly grooved ; 

 under one with the symphisis very short and oblique ; tips of both mandibles 

 notched. Commissure arched. Nostrils lateral, round, situated at the base of 

 the bill, and partly covered with small feathers. Legs abdominal, short ; feet of 

 three toes, all directed forwards, and united by a membrane. Wings and tail 

 short. 



VOL. III. 



H H 



