592 
BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Club, i, 1876, 41 (regular winter visitant to Lake Michigan, n. e. Tlinois).— 
KumuEn, Bull. U. 8. Nat. Mus., no. 15, 1877, 97 (Cumberland Sound and s. 
Greenland).—SaunpDErs, Proc. Zool. Soc. Lond., 1878, 166 (monogr.); ed, 
Yarrell’s Brit. Birds, iii, 1884, 642; Man. Brit. Birds, 1889, 665; Cat. Birds 
Brit. Mus., xxv, 1896, 295 (Mount’s Bay, Cornwall; Towyn, Wales; Iceland, 
winter; Greenland; Newfoundland, Dec.)—Ripe¢way, Proc. U. 8. Nat. 
Mus., iii, 1880 (Cat. N. Am. Birds no. 661), 206; Nom. N. Am. Birds, 1881, 
no. 661.—Maynarp, Birds E. N. Am., 1881, 483 (Boston Harbor, rare in 
winter).—Banes, (A. E. and O.), Bull. Nutt. Orn. Club, vi, 1881, 124 (Boston, 
Massachusetts, Jan. 31, 1880).—Merriam, Bull. Nutt. Orn. Club, vi, 1881, 
235 (Lewis Co., New York, rare winter vistant).—Cory, Bull. Nutt. Orn. 
Club, vii, 1882, 60 (near Boston, Nov., 1881).—Brewsrer, Bull. Nutt. Orn. 
Club, viii, 1883, 125 (Maine).—Bairp, Brewer, and Ripeway, Water Birds 
N. Am., ii, 1884, 216—Fiscuzr and Prtzztn, MT. Orn. Ver. Wien, 
1886, 210 (Jan Mayen Land, breeding).—Sresonm, Hist. Brit. Birds, iii, 
1885, 333.—Ltirxen, Ornis, 1885, 145 (Denmark).—Gr6npat, Ornis, 1886, 
370 (Iceland).—AmERIcAN OrniTHOLOGISTS’ Union, Check List, 1886, and 
2d ed., 1895, no. 43; 3d ed., 1910, p. 36.—FxitpEen, Trans. Norw. Soc., iv, 
1887, 351 (Digges Island, breeding).—Harviz-Brown and Bucx.ey, Fauna 
Sutherl., 1887, 234; Fauna Outer Hebrides, 1888, 149.—GreEzty, Rep. Exped. 
Lady Franklin Bay, ii, 1888, 22 (Smith Sound).—CuamBERLAINn, Auk, vi, 
1889, 215 (s. Greenland).—_Stevenson and SouTHwELL, Birds Norfolk, iii, 
1890, 336.—CLarKE (W. E.), Zoologist, 1890, 50 (Jan Mayen Land, breeding 
habits); Proc. Roy. Phys. Soc. Edinb., xiv, 1899, 164-167 (descr. white 
stage).—Bucxiry and Harvis-Brown, Fauna Orkney Is., 1891, 234— 
GATKE, Vogelw. Helgoland, 1891, 567——HaceErur, Birds Greenland, 1891, 
46.—MacFaruane, Proc. U. S. Nat. Mus., xiv, 1891, 418 (not found in 
Mackenzie).—Ogitviz, Zoologist, 1892, 114 (Aldeburgh).—Harrert, Ibis, 
1892, 521 (e. Prussia, 1 spec.).—Litrorp, Col. Figs. Brit. Birds, 1893, pt. 
xxvi—GurneEy, Zoologist, 1894, 85 (Norfolk, England).—Dvusors, Vertebr. 
Belg., Ois., ii, 1894, 580, pl. 290—Portrer, Auk, xii, 1895, 76 (Stamford, 
Connecticut, Feb. 16 and March 8, 1894).—Scuatow, Journ. fiir Orn., 1895, 
464 (w. Greenland; descr. eggs); Végel der Arktis, 1904, 145 (synonymy, 
range, etc.).—Ames, Auk, xviii, 1901, 106 (Toronto, Ontario, Dec. 2, 1898).— 
Dwieut, Auk, xxiii, 1906, 34 (crit.)—Fiemine, Auk, xxiii, 1906, 442 (To- 
ronto,-Dec. 12, 1898).—Presir, N. Am. Fauna, no. 27, 1908, 264 (Felix 
Harbor, Boothia; Melville Island; Arctic coast, breeding; Cambridge Bay, 
Victoria Land, breeding).—Jonzs, Wilson Bull., xxi, 1909, 68 (Lorain, 
Ohio, Dec. 22, 1888).—Cooxg, Bull. 292, U. 8. Dept. Agric. (Biol. Surv.), 
1915, 25, fig. 9 (range and migrations). 
| Larus] leucopterus Rernuarpt, Journ. fiir Orn., 1854, 443 (Greenland).—Gray, 
Hand-list, iii, 1871, 112, no. 10962.—Covuzs, Key N. Am. Birds, 1872, 311.— 
Suarpr, Hand-list, i, 1899, 142.—Forsrs and Rosrnson, Bull. Liverp. 
Mus., ii, no. 2, 1899, 58 (Davis Strait; Iceland; Barra Firth, Shetland Islands; 
crit.). 
Larus] leucopterus KeysEr.ine and Brasivus, Wirb. Eur., 1840, pp. xevi, 243.— 
Housou, Naturh. Tidssk., iv, 1843, 418 (Greenland).—Gray, Gen. Birds, 
ili, 1846, 654.—Brasrus, Journ. fiir Orn., 1865, 382 (crit.)—-Netson, Bull. 
Essex Inst., viii, 1876, 145 (regular winter resident on Lake Michigan, north- 
east Illinois).—Covrs, Key N. Am. Birds, 2d ed., 1884, 741.—Rmeway, 
Man. N. Am. Birds, 1887, 26. 
Laroides leucopterus Bruum, Isis, 1830, 993; Vég. Deutschl., 1831, 746; Nau- 
mannia, 1855, 294.—Bonaparts, Naumannia, 1854, 211. 
[Larotdes] leucopterus Brucn, Journ. fiir Orn., 1855, 281 (monogr.). 
