1877.] 159 [Barrows. 



Coll. La Fresnaye, No. 8142, Society's Coll., No. 9216; N. America. 

 Coll. La Fresnaye, No. 8143, Society's Coll., No. 9217; Arctic 

 Ocean. 



No. , winter plumage. 



No. , summer plumage; Dr. Wra. Ingalls. 



No. , July; Sukkertoppen, Greenland. 



No. , Mass. T. Jackson. 



16. Uria columba. 



Uria grylle, variety B, Latham. Cepphus columba Pall., 1811. Uria 

 columba Cassin. 



Very similar to the preceding, averaging a little larger. The bill 

 is stouter and more obtuse. The general color is about the same ; 

 the white spot on the wing is interrupted, and sometimes entirely 

 severed, by a band of black. The. under wing is never pure white 

 but is sometimes very light, as is shown by some of the Museum 

 specimens. The tail feathers are fourteen in number. This species 

 seems to replace U. grylle on the Pacific coast. Length 13 in. Wing 

 7 in. Tail 2-2^ in. Six specimens. 



No. 46534; 6\ skin; Sitka. 



No. 54291; $; « Kodiak. 



No. 54746; « " 



No. 54748; « « 



No. 54750; " " 



Duplicate, no number; Bryant's Coll. 



17. Uria carbo. 



Cepphus carbo Pallas, 1811. Uria carbo Gray, Cassin, Coues, etc. 

 Alca carbo Schlegel. No specimen. 



Genus Lomvia (Ray) Brandt. 



Size large ; bill rather long, slightly curved, considerably com- 

 pressed ; culmen gently convex ; rictus straight at first, but de- 

 flected toward the tip; gonys slightly concave. Upper mandible 

 with a tooth at tip from which a little groove runs backward on the 

 side of the mandible parallel with the culmen. Nasal fossae very 

 short, almost completely filled with feathers, beneath which the nos- 

 trils are just visible. There is a long furrow in the feathers behind 

 the eye. Tarsus shorter than middle toe ; almost entirely scutellate 

 in front. Colors — dark above ; white below. Secondaries white 

 tipped. 



PROCEEDINGS B. S. N. H. — VOL. XIX. 11 NOVEMBER, 1877. 



