626 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Barrp, Cat. N. Am. Birds, 1859, no. 664; Rep. U.S. and Mex. Bound. Surv., 
ii, pt. ii, 1859, 27 (Brazos, Texas).—Coorrr and Suoxuny, Rep. Pacific 
R. R. Surv., xii, pt. ii, 1860, 273 (Puget Sound, Washington).—Covzs, 
Proc. Ac. Nat. Sci. Phila., 1861, 246 (coast Labrador); 1862, 302 (monogr.); 
Check List, 1873, no. 548; 2d ed., no. 778; Birds Northwest, 1874, 636; 
Bull. U. 8. Geol. and Geog. Surv. Terr., iv, 1878, 655 (near Mouse River, N. 
Dakota).—Buaxiston, Ibis, 1862, 10 (Saskatchewan River).—Hensnaw, 
Ann. Lyc. N. Y., xi, 1875, 18 (Utah); Zool. Exped. W. 100th Merid., 1875, 
485 (Provo, Utah, Nov. 30); Auk, ii, 1885, 232 (Santa Barbara to San Diego, 
California, in winter); Birds Hawaiian Is., 1902, 127 (1 spec., exact locality 
unknown).—Ripeway, Orn. 40th Parallel, 1877, 638 (Pyramid Lake, Nevada, 
Dec.); Proc. U. S. Nat. Mus., iii, 1880 (Cat. N. Am. Birds), 207; Nom. N. 
Am. Birds, 1881, no. 669.—BENpirE, Proc. Bost. Soc. N. H., xix, 1877, 148 
(Malheur Lake, e. Oregon, breeding).—Saunpvers, Proc. Zool. Soc. Lond., 
1878, 176 (monogr.); Cat. Birds Brit. Mus., xxv, 1896, 273 (Santa Ana, near 
Guadalajara, Jalisco, Nov.; Presidio de Mazatlan, Sinaloa, Jan., Feb.; 
Guaymas, Sonora, Dec.; etc.).—Remp, Zoologist, 1877, 489 (Bermudas, nce); 
Bull. U. S. Nat. Mus., no. 25, 1884, 266 (Bermudas, 1 spec., Jan. 1, 1849),— 
Sennett, Bull. U. 8. Geol. and Geog. Surv. Terr., iv, 1878, 64 (Galveston, 
Texas).—Maynarp, Birds E. N. Am., 1881, 485.—Bztpine, Prov. U. 8. 
Nat. Mus., v, 1883, 545 (Cape San Lucas district, Lower California),—Batrp, 
Brewer, and Ripeway, Water Birds N. Am., ii, 1884, 244.—Drew, Auk, 
ii, 1885, 18 (Colorado, 6,000-9,500 ft.).—Amzrican OrniTHOLOGISTS’ UNION, 
Check List, 1886, and 2d ed., 1895, no. 54; 3rd ed., 1910, p. 39.—Szton, Auk, 
iii, 1886, 147 (w. Manitoba, breeding).—Townsenp, Proc. U. 8. Nat. Mus., 
x, 1887, 192 (Summit Lake, near Mt. Lassen, California, 1 spec., June 5).— 
Fertpen, Trans. Norwich Soc., iv, 1887, 351 (Hudson Bay).—THompson, 
Proc. U.‘S. Nat. Mus., xiii, 1890, 468 (Winnipeg, Lake Winnipeg, etc:, 
Manitoba, breeding).—Cory, Cat. West Ind. Birds, 1892, 82, 135 (Cuba).— 
Cooxs; Bull. 56, Col. Agric. Exp. Sta., 1900, 192 (San Luis Lakes, Colorado, 
7,500 ft., breeding); Bull. 292, U. S. Dept. Agric. (Biol. Surv.), 1915, 43, 
fig. 22 (range and migrations)—BrewsteR, Bull. Mus. Comp. Zool., xli, 
no. 1, 1902, 21 (Cape district, Lower California, in winter).—Satvin and Gop- 
MAN, Biol. Centr.-Am., Aves, iii, 1903, 424 (Guaymas, Sonora; Mazatlan and 
Presidio de Mazatlan, Sinaloa; Guadalajara and Santa Ana near Guadalajara, 
Jalisco; Gulf of Tehuantepec; Oaxaca; Bermudas; Cuba).—Presie, North 
Am. Fauna, no. 27, 1908, 267 (breeding n. to Great Slave Lake, Mackenzie).— 
Woop and Gates, Pub. 4, Mich. Geol. and Biol. Surv., 1911, 277 (breeding 
near Neebish Islands, Upper Peninsula, Michigan).—Grinneut (J.), Pacific 
: Coast Avif., no. 11, 1915, 22 (California; winter visitor, whole State). 
[Larus] delawarensis Gray, Hand-List, iii, 1871, 111, no. 10948.—Covuzs, Key N. 
Am. Birds, 1872, 318.—Cory, List Birds West Ind., revised ed., 1886, 33 
(Cuba?).—Swarpz, Hand-list, i, 1899, 142—Forsrs and Rosinson, Bull. 
Liverp. Mus., ii, no. 2, 1899, 58. 
Larus] delawarensis Ripaway, Ann. Lyc. N. Y., x, 1874, 391 (Illinois in winter); 
Man. N. Am. Birds, 1887, 32.—Covrs, Key N. Am. Birds, 2d ed., 1884, 
745.—Bryan, Key Birds Hawaiian Group, 1901, 7 (Hawaiian Islands, acci- 
dental). ‘ 
Larus canus (not of Linneus) Bonararte, Specchio Comp., 1827, 69; Ann. Lyc. 
N. Y., ii, 1828, 359. 
Larus argentatoides (not of Brehm) Bonaparte, Ann. Lyc. N. Y., ii, 1828, 360 
(New York). 
Larus zonorhynchus RicHarpson, in Swainson and Richardson, Fauna Bor.-Am., 
ii, 1831, 421 (Saskatchewan, Manitoba)—Nuttatt, Man. Orn. U. 8. and 
Can., Water Birds, 1834, 300.—AupuBon, Orn. Biog., iii, 1835, 98, pl. 212; 
