618 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



and Bagg, Trans. Oneida Hist. Soc, iii, 1886, 104 (Herkimer and Hamilton 

 counties, New York, breeding). — Evermann. Auk, iii. 1886, 88 (Ventura 

 Co., California). — Seton, Auk, iii, 1886, 147 (Lake Winnipeg, etc., w. 

 Manitoba, breeding). — Nelson, Rep. N. H. Coll. Alaska. 1887. 54 (upper 

 Yukon River).— Bryant (W. E.). Proc. Calif. Ac. Sci.. 2d ser., ii, 1889. 251 

 (Cerros Island, Lower California). — Scott. Auk, vii. 1890, 306 (Dry Tortugas, 

 Florida, March).— Thompson. Proc. U. S. Nat. Mus., xiii, 1890, 468 (Mani- 

 toba). — Macfarlane, Proc. U. S. Nat. Mus., xiv, 1891, 418 (Mackenzie, 

 breeding along Arctic coast). — Cory, Cat. West Ind. Birds, 1892, 82, 135 

 (New Providence Island. Bahamas; Cuba). — Mackay. Auk, ix, 1892, 221-228 

 (habits in New England). — Rhoads, Auk. x. 1893, 71 (coast of Washington 

 and Brit. Columbia). — Allen, Auk, x, 1893, 125 (range). — Grinnell (J)., 

 Pub. 2. Pasadena Ac. Sci., 1898, 6 (coast Los Angeles Co., California, winter; 

 Santa Catalina Island, Dec). — Nelson, North Am. Fauna, no. 14, 1899. 23 

 (San Juanita Island, Tres Marias, May 22). — Hantzsch. Joiurn. fiir Orn., 

 1908, 327 (Labrador). — Wood and Gaige, Pub. 4, Mich. Geol. and Biol. 

 Surv., 1911, 276 (breeding in Michigan n. of lat. 44° N.). 



L[arus] argentatus smithsonianus Ridgway, Man. N. Am. Birds, 1887, 31. 



L[arus] a[rgentatus] smithsonianus Coues, Key N. Am. Birds, 2d ed., 1884, 743. 



[?] Lnrus ocddentalis (not of Audubon) Jardine. Contr. Orn.. 1849, 86 (Bermudas; 

 3 specs.). — HuRDis, Jardine's Contr. Orn., 1850. 13 (Bermudas, in winter). — 

 Bland, An. Rep. Smithson. Inst, for 1858 (1859). 289 (Bermudas). 



L[anis] occidenialis M.\rtens. Journ. fiir Orn.. 1859, 222 (Bermudas). 



LARUS VEG-ffi (Palmen). 



VEGA GTTLL. 



Similar to L. argentatus, but color of back, etc., decidedly darker. 



Adults in summer^ (sexes alike). — Head, neck, rump, upper tail- 

 coverts, tail and entire under parts, including axillars and under wing- 

 coverts, immaculate pure white; back, scapulars, and wings uniform 

 light neutral gray (about the same shade as in L. californicus) , the 

 tertials, secondaries, and proximal primaries passing terminally into 

 white (this about 31-32 mm. wide on secondaries, where rather 

 abruptly defined); outermost primary black, the terminal portion, for 

 about 57 mm., abruptly white, this white area usually interrupted 

 by a subterminal spot or bar of black (appearing terminal when the 

 white at apex is worn off); second primary (from outside) black, 

 abruptly tipped with white, the inner web with a largo oval or rounded 

 spot of white preceding the subterminal black; third primary similar 

 but becoming gray basally, only the tip white, the gray on inner web 

 paler than that on outer web and becoming still, paler distally, where 

 sharply defined against the subterminal black area and reaching to 

 within a])out 63.5-70 mm. of tip of the quill; fourth primary similar, 

 but the black more restricted, the gray "wedge'" on inner web becom- 

 ing decidedly white distally; fifth primary similar, but with the black 

 still more restricted, and gray of outer web lighter; sixth primary 

 gray (like back, etc.), passing into white terminally and crossed near 

 tip by a band or broad bar of black; seventh piimary similar to sixth. 



