572 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Rissa tridactyla Dall and Bannister, Trans. Chicago Ac. Sci., i, 1869, 305 (Sitka, 

 Amak, etc., Alaska; Plover Bay, Siberia). — Finsch, Abh. Nat. Ver. 

 Brem., iii, 1872, 84 (Alaska).— Dall, Proc. Calif. Ac. Sci., v, 1873, 32 (Shu- 

 magin Islands, Alaska; habits). — Blakiston and Pryer, Trans. Asiat. 

 Soc. Japan, viii, 1880, 190; x, 1882, 105.— Taczanowski, Bull. See. Zool. 

 France, 1883, 398 (Kamchatka, etc.); Mem. Acad. St. Petersb., xxxix, 1893. 

 1049 (e. Siberia).— Saunders, Cat. Birds Brit. Mus., xxv, 1896, 305, 458, part, 



[Rissa] tridactyla Forbes and Robinson, Bull. Liverp. Mus., ii, no. 2, 1899, 58. 

 part (Kamchatka). 



[Larus (Rissa)] bmchyrhijnchus (not Lams brachyrhynchus Richardson, 1831, nor 

 Gould, 1843) Bruch, Journ. fiir Orn., 1853, 103 (North America). 



Rissa brachifrhyncha Taczanowski, Bull. Soc. Zool. France, 1876, 204; Orn. 

 Faun. Vost. Sibir., 1877, 65. 



Rissa 7iivea (not ol Grxy , 1845) Bonaparte, Naumannia, 1854, 212 (nomen nudum) . 



[Larus (Rissa)] niveus Bruch, Journ. fiir Orn., 1855, 285 (excl. syn.). 



R[issa] kotzebui (not oi Bonaparte, 1854!) Bonaparte, Consp. Av., ii, 1857, 226. 



Rissa kotzebui Goues, Proc. Ac. Nat. Sci. Phila., 1862, 305 (monogr.). — Elliot, 

 Illustr., New and Unfig. N. Am. Birds, pt. 11, 1868, pi. 53, left-hand fig., 

 and text. — Stejneger, Proc. U. S. Nat. Mus., 1883, 60. 



[Rissa] kotzebui Gray, Hand-list, iii, 1871, 117, no. 11019. 



[Larus tridictylus] var. kotzebui Coues, Key N. Am. Birds, 1872, 314. 



Larus tridactylus . . . var. kotzebui Coues, Check List, 1873, no. 552a. 



Larus tridactylus var. kotzebui Coues, Birds Northwest, 1874, 646; in Elliott's 

 Affairs in Alaska, 1875, 199 (Pribilof Islands). — Elliott, Mon. Pribylov 

 Group, 1882, 132 (breeding; very numerous). 



Rissa tridactyla kotzebuei Ridgway, Cat. Aquat. and Fish-eating Birds, May> 

 1883, 29. 



Rissa tridactyla kotzbuei Ridgway, Proc. U. S. Nat. Mus., iii, Aug. 24, 1880, 206 

 (Cat. N. Am. Birds, no. 658a); Nom. N. Am. Birds, 1881, no. 658a.— Bean, 

 Proc. U. S. Nat. Mus., 1882, 167 (Bering Sea).— Nelson, Cruise 'Corwin' in 

 1881 (1883), 105 (rocky shores Bering Sea; habits).— Goss, Auk, ii, 1885, 

 222 (Port Townsend, Washington, March 2, 1882). — Southwick and Jencks, 

 Auk, ii, 1885, 313 (Nicasio, California). 



[Rissa] kotzebuii Bonaparte, Compt. Rend., xlii, 1856, 771. 

 * Rissa tridactyla kotzebuii Coues, Check List, 2d ed., 1882, no. 783. 



R[issa] t[ridactyla] kotzebuii Coues, Key N. Am. Birds, 2d ed., 1884, 748. 



Larus kotzebuei Nelson, Bull. Nutt. Orn. Club, v, Jan., 1880, 35, in text (St. 

 Michaels, Alaska). 



[Rissa tridactyla] b. pollicaris Baird, Brewer, and Ridgway, Water Birds N. Am., 

 ii, 1884, 202 (no type-locality indicated and no diagnosis; but intended as 

 subspecific designation of the North Pacific form; ex Stejneger, manuscript). 



Rissa tridactyla pollicaris Stejneger, Bull. U. S. Nat. Mus., no. 29, 1885, 78 (Com- 

 mander Islands, Kamchatka, breeding; crit., etc.). — Turner, Auk, ii, 



1885, 158 (Nearer Islands, Alaska); Contr. N. H. Alaska, 1886, 124 (St. 

 Michaels, etc., habits). — American Ornithologists' Union, Check List, 



1886, and 2d ed., 1895, no. 40a; 3rd ed., 1910, p. 36.— Nelson, Rep. N. H. 

 Coll. Alaska, 1887, 49 (habits).— Townsend, Cruise 'Corwin' in 1885(1887), 

 98 (Pribilof Islands; Otter Island).— Palmen, 'Vega '-Exped., Bd. v, 1887, 361 

 (Bering Sea).— Ridgway, Proc. U. S. Nat. ]\Ius., xvi, 1893, 663 (Middleton 

 I., Alaska).— Taczanowski, Mem. Acad. St. Petersb., xxxix, 1893, 1052 

 (e. Siberia). — Anthony, Auk, xii, 1895, 177 (San Diego, California, Feb.); 

 XV, 1898, 267 (San Geronimo Island, Lower California; regular but not com- 

 mon winter visitant off San Diego and about Los Coronados Islands). — Thayer 

 and Bangs, Proc. New Engl. Zool. Club, v, 1914, 9 (breeding westward to 



