4. uRiA. 579 



Alca arm SchL 3fus. Pays-Bas, vi. Urinat. p. IG (1867) 



p'l02 ' '''• ^^•^""'^^"' ^'^"^'t' i'orh. hd. Lk. Christ. 1868, 

 Lomvia svarbag, Coues, P. Ac. Philad. 1868, p 80 



nR77\ In \ ^ [Ussun ; Id. Bull. Soc. Z. Fr. li p 51 



Sill i i' vf rfi- ^«^^^"^V■^P• ^^'^ (1««9) [S. Greenland]; 

 p 307 Vl^n\ rp^' l-^'^X^SbO) [Magdalen Is.]; ^.'ereV/, Auk, viii 



[btrait ot Eehale] ; Be Haven, Auk xiii n 171 n«Qr\ r\7- " • t 

 i?«./«-, ^«A-, xivl p. 197 (1897r[Indfanaf ^^ ^'^^'^ ^^ "'^"""^ ' 

 Lomvia arra, Coues Key N. Am. B. p. 346 (1872) ; Barroios P 



p^I0o(18/9); Elhott, Seal-Is. Alaska, p. 135 (1881); Goss Tr 

 Kansas Acad. vm. p. 69 (1883) TBird Rnr-l-l a-J >-,' • 

 Corwin r, 117 ns«Q\ <^} ^ J- }^°- -'^'OCiiJ ; Aelson, Cruise 



Alca brunnichii, i^ei7^^«, Ibis, 1877, p. 410 [Greenland! 

 Una lomvia arra, Stejn. Bull. U.S. Nat. Mm. xxix. p. 17 (1885) 

 [Commander Is.]; Turner, Auk, ii. p. 159 (1885) Nearer Is 



Lonni. am briimichii, oicitr, AiJ:, ii. p. 38 (1885) [Long I. 



Lomvia brunnichii, Pearson, Ibis, 1896 n ''-^^ rr?rv,.„,.„ i i i 

 1898, pp. 204-207 [ Waigats, '£]! ' ^^ ' ^^ °' '^ ' ^^'"^'"'^^ ' 



Adult in hreedinrj-plumage. Differs from fT. ^^-ojYe not only in 

 having the beak shorter and stouter and the culmen more stron-ly 

 curved, but the upper parts are also greyish-black, in stronger contrast 

 to the sides of the head, chin, and throat, which are deep smoky- 

 brown ; the sides of the maxillary tomia are bare to the an-le of 

 the gape and not concealed by feathers, as is invariably the c^e in 

 U.troile. Tail composed of 12 feathers. Total length about 19 

 inches, culmen from feathers on forehead to tip l-5o-l-y from -ipe 

 to tip 2-0-J3-1, greatest depth of both mandibles at base 0-5-U%5 



J0T2 3 ' '■'"'■''' ''""' '■''-'■'"' "^^^^^ t- ^^^ '1-^ 

 Adidt in non-hreeding plumage. Very similar to U. troiU but 



apparently does not assume the white patches on each side of the 



occiput, all specimens examined haying the sides of the head dark 



to the postorbital crease. 



Young in down. Very similar to the young of U troile 

 According to Dr. Stojneger the young bird about six months old 



lias tlie basal part of the tomia feathered. 



2p 2 



