180 FISHERIES OF THE UNITED STATES. [42] 



761. Uria coSmnba (Pall.). Pigeon Guillemot. [727.] North 

 Pacific (both sides), breeding south to California. 



a. No. 62707. 9 ad. Popoff Straits, Alaska, June 24, 1872 ; W. H. Dall. 



76S. Uria carbo(Pall.). Sooty Guillemot. [728.] Northern Japan 

 to Unalashka. 



763. Lomvia troile (Linn.). Common Guillemot. [729, 730.] 



North Atlantic ; in America, south in winter to coast 

 of New England. 



a. No. 517. $ ad. Labrador?; Prof. S. F. Baird. 



763a. Lomvia troile californica (Bryant). California Guil- 

 lemot. Pacific coast of North America, breeding- 

 south to Farallone Islands, California. 



a. No. 64305. $ ad. Saint George's Island, Alaska, June 20, 1872 ; H. 

 W. Elliott. 



764. Lomvia arra (Pall.). Thick-billed Guillemot. Northern 



parts of North Pacific ; Bering's Sea. 



a. No. 64309. Ad. Prybilov Islands, Alaska ; H. W. Elliott. 



b. No. 68334. Pullus. Walrus Island, Alaska ; Lieut. G. R. Adams, U. 



S.N. 



764a. Lomvia arra brnennichi (Schleg.). Bruennich's Guil- 

 lemot. [731.] North Atlantic; south in winter to 

 New Jersey; Arctic Ocean. 



a. No. 71016. Ad. N. lat. 62° 24', W. Ion. 65° ; Lieut. W. A. Minfzer, 



U. S. N. 

 fc. No. 18255. Juv. Groawater Bay, Labrador, July 25 ; Dr. E. Coues. 



