744 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
tarsus 1.4-1.5 [35.6-38.1 mm.], middle toe and claw 1.9-2.1 [48.3- 
53.3 mm.,].”’ ¢ ‘ 
“Adult in nonbreeding pluwmage.—Chin, throat, foreneck, and 
under parts white, inner web of flank feathers gray. 
“Immature (February).—Resembles the adult in winter plumage, 
but the foreneck is grayish and the feathers of the sides, flanks, and 
belly are mostly fringed at the extremity with dark brown. 
“Quite young bird (August).—Has the upper parts as in the adult, 
the white ring around the eye nearly obsolete, the foreneck, chest, 
sides, and flanks dark smoky-black, and the rest of the under parts 
white, widely fringed with brownish-black.” 
Coasts and islands of northeastern Siberia (Olga Bay; Usuri; Abrek 
Bay; Cape Shipunski; coast of Taiganose Peninsula, south of Chaibook 
Point, breeding), Kamchatka (Bering Island, April 28, 1883, four speci- 
mens), and northern Japan (Sakhalin Island; Bay of Sendai, eastern 
coast of Hondo; Yezo; Hakodate; Uraga, near Yokohama; Kuril 
Islands’); Sea of Okotsk?; Unalaska Island, Alaska??? 
Cepphus carbo Pautas, Zoogr. Rosso-Asiat., ii, 1826, 350, pl. 79 (‘‘especially 
abundant in the caves around Unalaska, wherefrom I have received numer- 
ous specimens”).‘-—RzIcHENBACH, Natatores, 1850, pl. 111, figs. 2937-2939.— 
Newton, Ibis, 1865, 519 (crit.)—Srrsnecer, Proc. U. 8. Nat. Mus., vii, 
1884, 225, 226, 227, 229 (geographic range; synonymy); x, 1887, 118 (Bering 
Island; Bull. U. 8. Nat. Mus., no. 29, 1885, 22 (Bering Island; 4 specs., 
April 28, 1883).—Barrp, Brewer, and Ripeway, Water Birds N. Am., 
ii, 1884, 496 —AmERICAN OrNITHOLOGISTS’ Unton, Check List, 1886, 350 
(hypothetical list, no. 3); 2d ed., 1895, 326.—GieLioxt1 and Satvaport, Proc. 
Zool. Soc. Lond., 1887, 593 (Olga Bay, e. Siberia; crit.)—TaczaNowskI, 
Mém. Ac. St. Petersb., xxxix, 1893, 1224 (e. Siberia).—Atzen, Bull. Am. 
Mus. N. H., xxi, 1905, 224 (coast Taiganose Peninsula, south of Chaibook 
Point, n. e. Siberia, breeding).—CiarK (A. H.), Proc. U. S. Nat. Mus., 
XXxXvili, 1910, 33 (Sakhalin Island, Japan).—Brooxs (W. S.), Bull. Mus. 
Comp. Zool., lix, 1915, 370 (Cape Shipunski, Siberia, May 21, 1913). 
Clepphus] carbo Ripaway, Man. N. Am. Birds, 1887, 17. 
Uria carbo Brannt, Bull. Ac. Sci. St. Petersb., ii, 1837, 346; Mélang. Biol., vii, 
1869, 206.—Goutp, Birds Asia, vii, 1851, pl. 71 and text.—MippENDoRFr, 
Sibir. Reise, ii, pt. 2, 1853, 239, pl. 23, fig. 6—Cassin, in Baird, Rep. Pacific 
R. R. Surv., ix, 1858, 913; ed. 1860 (‘‘Birds N. Am.’’), atlas, pl. 97; Proc. 
Ac. Nat. Sci. Phila., 1862, 323 (Bay of Sendai, e. coast Hondo, Japan).— 
Scurenck, Reis. Amur-land, i, 1860, 496, pl. 16, fig. 1 (egg).—Barrp, Cat. 
N. Am. Birds, 1859, no. 728.—Covss, Proc. Ac. Nat. Sci. Phila., 1868, 73, 
fig. 15 (monogr.); Check List, 1873, no. 633; 2d ed., 1882, no. 873.—HoMEYER, 
Journ. fiir Orn., 1870, 435 (Okotsk Sea).—Swinnog, Ibis, 1875, 458 (Hako- 
date, Japan).—Taczanowsx1, Journ. fiir Orn., 1876, 203 (Usuri, e. Siberia); 
Orn, Faun. Vost. Sibir., 1877, 73; Bull. Soc. Zool. France, 1877, 51 (Abrek 
2 Not having seen a specimen of this species (except a head, only, in the U.S 
National Museum collection), I quote the above descriptions from Grant, Cat. Birds 
Brit. Mus., xxvi, 1898, 598. : 
> Translation. See Stejneger, Proc. U. S. Nat. Mus., vii, 1884, 226, where probable 
error in statement of locality is explained. e 
