582 ALCiE. 



Uria arctiea, Brekvi, Lehrb. Eur. Vog. pt. ii. p. 923 (1824). 



Una motzfeldi, Benicken, Isis, 1824, p. 889 [Greenland]. 



Uria iinicolor, Faber, Lns, 1824, p. 981 [Greenland] ; Brehn, Ibis, 

 1826, p. 988; id. Handb. Vog. DeutscM. p. 985 (1831); Schinz, 

 Europ. Faun. i. p. 360 (1840). 



White- winged Guillemot, Steph. in Shale's Gen. Zool. xii. pt. ii. p. 250, 

 pi. 64 (1824), 



Uria scapularis, Steph. in Shaw's Gen. Zool. xii. pt. ii. p. 250 (1824) 

 [part]. 



Guillemot, Mont. Orn. Diet. 2nd ed. p. 233 (1831). 



Cepbus arcticus, Brehni, Handh. Vog. Deutschl. p. 988 (1831). 



Cephus gTj'lle, Brehm, Handb. Vog. Deutschl. p. 987, pi. xlv. fig. 2 

 (1831) ; Schinz, Nat. Vog. p. 221, pi. 102 (1853). 



Grj'lle groenlandicus, Gray [ex Brisson), List Gen. B. p. 77 (1840), 



Ceppbus giylle, Naum. Nat. Vog. Deutschl. xii. p. 461, pi. 330 

 (1844) ; Reichenh. Natutores, pi. ix. fig. 2234 (1850) ; Collett, 

 Forh. Vid. Selsk. Christ. 1868, p. 191 ; Baird, Brew. 4' Bidgto. 

 Water-B. N. Amer. ii. p. 492 (1884) ; Stejn. P. U.S. Nat. Mus. vii, 

 p. 228 (1884); A. 0. U. Check-l. p. 81 (1886) ; Ridgio. Man. N. Am. 

 B. p. 16 (1887) ; Chamberlain, Auk, vi. p. 213 (1889) [S. Green- 

 land] ; Bish02}, Auk, vi. p. 145 (1889) [Magdalen Is.] ; Warren, B. 

 Pennsylvania, p. 9 (1890) ; Stone, P. Ac. Philad. 1892, p. 145 

 [Disco] ; Sharpe, Handb. B. Gr. Brit. iv. p. 123, pi. cviii. (1897), 



Uria mandti, Beichcrib. {nee Licht.), Natatores, pi. viii. fig. 47 

 (1850). 



Ceppbus mandtii, Beichenb. (nee Licht.), Natatores, pi. ix. fig. 2233 

 (1850). 



Ceppbus grylle,'var. variegata, Reichcnb. Natatores, pi. ix. fig. 2235 

 (1850). 



Ceppbus carbo, Newton {nee Pall.), Ibis, 1865, p. 518 footnote [Ice- 

 land]. 



Grylle columba, Fitz. Atl. Nat. Vog. fig. 341 (1864) ; Fritsch, Nat. 

 Vog. Europa's, p. 495 (1870), Atl. pi. 59. figs. 2, 3 (1871). 



Alca gi'ylle, Schl. Mus. Pays-Bas, \i. Urinat. p. 17 (1867) [we^Kam- 

 scbatka] ; Seebohm, Hist. Brit. B. iii. p. 383 (1885). 



Ceppbus motzfeldi, Baird, Brew. ^- Bidgw. Water-B. N. Am. ii. 

 p. 497 (1884) ; Stejn. P. U.S. Nat. Mus. vu. p. 229 (1884) ; Bidgio. 

 Man. N. Am. B. p. 17 (1887). 



Alca mansfeldi, Seebohm, B. Japan, p. 276 (1890). 



Adult in hreeding-plumage. General colour sootj'-black with a 

 slight oil-green gloss ; greater and median wing-coverts white, the 

 former with the basal half black, sometimes showing as a narrow 

 black band beyond the tips of the overlying coverts ; basal third of 

 the inner webs of the primaries and secondaries, as weU as the under 

 wing-coverts and axillaries, white. Iris dark brown: bill black ; 

 inside of mouth, legs, and feet vermilion-red. Total length about 

 13 inches, culmen from feathers on forebead to tip 1*4, from gape to 

 tip l"95-2, greatest depth of both mandibles at base of culmen 0-4, 

 wing 6-6"2, tail 2, tarsus 1-25-1-3, middle toe and claw l*7-l'7o. 



Adult in non-breeding plumage. In less mature examples the 

 underparts, including the chin, throat, cheeks, fore-neck, and rest of 

 underparts, are mostly pure white; the top of the head, back, scapulars, 

 and upper tail-coverts black, fringed or barred with white, the rump 

 only being mostly white ; and the wings are similar to those of the 

 adult in summer plumage. Tail composed of 12 feathers. As age 



