2, 8TERC0RAKIUS. 325 



Gillett, Ibis, 1870, p. 307 (Novaya Zemlya) ; Coues, Key N. Arner. 

 B. p. 309 (1872) ; Gotdd, B. Gt. Brit. v. pi. 79 (1873); Coues in 

 Elliott's I'ryUhff Group, no. 540 (1873); id. B. N.-W. p. 607 

 (1874) ; Eaton, Zool. s. s. p. 3812 (1874: Spitzbergen) ; A. Netcton, 

 Arctic Mail. p. 107 (1875) ; Saunders, P. Z. S. 1876, p. 324 (revi- 

 .siou) ; Seeb. ^^ H-Broim, Bns, 187(>, p. 455 (outside Golaievskai 

 banks); Colletf, N. May. Natiirv. 1877, p. 207 ; Saunders, Bull. 

 Soc. Zool. Fr. 1877, p. 205 (S. Spain); id. P. Z. S. 1877, p. 800 

 (luosima, Japan, ' Challenp-er ') ; Dresser, B. Eur. viii. p. 463, 

 pi. GIO (1877); Saunders, Journ. Linn. Soc. xiv. p. 392 (1878: 

 distribution); Kumlien, Bull. U.S. Nat. Mus. xv. p. 94 (1879: 

 Disco) ; Dalyleish, Pr. Nat. H. Soc. Glasg. 1881, p. 275 ; Saunders, 

 Voy. ' Challeriyer; Birds, p. 140 (1881 : Japan) ; Ridgw. Bull. 

 U.S. Nat. Mus. no. 21, p. 53 (1881) ; Feilden in Markham's 

 Polar Pecon. p. 334 (1881 : Novava Zemlya, breeding) ; Coues, 

 Check-list N. Amer. B. p. 119 (1882) ; Elliott, Seal Is. of Alaska, 

 p. 132 (1882) ; Bean, Pr. U.S. Nat. Mus. 1882, p. 168 (Pt. 

 Belcher, Alaska) ; Saunders, P. Z. S. 1882, p. 527 (Callao Bay) ; 

 Seebohm (Henke), Ibis, 1882, p. 386 (Kanin Penins., breeds) ; 

 B. O. U. List Brit. B. p. 194 (1883) ; Ridqw. Cat. Fish. Exhib. 

 p. 35 (1883) ; Nelson, Cruise ' Concin,' p. 110 (1883) ; Stearns, 

 Pr. U.S. Nat. Mus. vi. p. 121 (1883 : Labrador) ; Oates, B. Brit. 

 Burin, ii. p. 413 (1883 : Moulmein) ; Coues, Key N. Amer. B. 2nd 

 ed. p. 735 (1884); Stejn. Auk, 1884, p. 174 (nomencl.); Seeb. 

 Ibis, 1884, p. 32 (Tokio Bay, Japan) ; Saunders, Ibis, 1884, p. 391 

 (S.W. France) ; Saunders, \th ed. Fan: Brit. B. iii. p. 668 (1884) ; 

 Sharpe, ed. Layard's B. S. Afr. p. 695 (1884) ; Biichner, Beitr. 

 Russ. Reiches, (2) ii. p. 132 (1885: St. Petersburg); Murdoch, 

 Rep. Evped. Pt. Barrow, p. 126 (1885) ; Giglioli, Avif. Ital. p. 435 

 (1886) ; Taczan. Orn. Perou, iii. p. 458 ' (1886) ; Feilden, Tr. 

 Nonvieh Soc. iv. p. 351 (1887 : Hudson Str.) ; Saload. Ucc. Ital. 

 p. 290 (1887) ; H-Br. Sr Buckl. Faun. Sutherl. S)-c. p. 235 (1887) ; 

 J. R. H. MacFarl. Ibis, 1887, p. 206 (Callao Bay) ; Tait, t. c. 

 p. 396 (Portuj^al) ; Booth, Rouyh Notes, iii. (1887); H-Br. 4- 

 Buckl. Faun. Outer Hebr. p. 151 (1888) ; Saunders, Man. Brit. B. 

 p. 673 & p. 736 (1889) ; Giglioli, 1" Resoc. Av. Ital. p. 650 (1889) ; 

 id. 2° Resoc. p. 661 (1890) ; Reichenotv, Syst. Verz. Vog. Beutschl. 

 p. 64 (1889) ; Stevenson Sf Southw. B. Norfolk, iii. p. 348 (1890) ; 

 Buckl. S( H-Br. Faun. Orkneys, p. 237 (1891) ; iid. F. Argyll ^ 

 Inn. Hebr. p. 194 (1892) ; Hartert, Ibis, 1892, p. 521 "(East 

 Prussia) ; Collett, N. Mag. f. Naturv. Bd. xxxv. p. 297 (1894) ; 

 Irhy, Orn. Strs. Gibr. 2nd ed. p. 302 (1895). 



Stercorarius pomarhinus, 31almgren, CEfv. Fork. Ak. Stockh. 1804, 

 p. 411 (1864 : Spitsbergen). 



Stercorarius catarractes, Wright, Ibis, 1864, p. 150 (Malta). 



Stercorarius striatus {ex Briss.), Olphe-Gall. Orn. Eur. Occid. fase. x. 

 p. 7 (1886). 



Coprotberes pomatorliinus, Heine ^ Reichenotv, Nomencl. Mus. Hein. 

 p. 360 (1890). 



Adult in breeding-plumage. Forehead, cheeks, and crown sooty 

 black ; acuminate feathers of the entire neck white, edged with 

 warm straw-yellow ; feathers of the lower neck blackish, often 

 tipped with grey, while those of the upper breast are chiefly white, 

 barred with black, which forms more or less of a dark collar ; 

 mantle, upper tail-coverts, and rectrices dark umber-brown ; 

 primaries similar, but whitish at their concealed bases, shafts chiefly 



