BIRDS OF NOETH AND MIDDLE AMEEICA. 627 



V, 1S39, 638; Synopsis, 1839, 327; Birds Am., 8vo ed., vii, 1844, 152, pi. 446.— 

 BoxAPARTE, Geog. and Comp. List, 1838, 63.— Giraud, Birds Long Is., 1844, 

 3G0.— Gray, List Birds Brit. Mus., Anseres, 1844, 171.— Jardine, Contr. 

 Orn., 1849, 86 (Bermudas, in autumn). — Hurdis, Jardine's Contr. Orn., 

 1850, 13 (Bermudas, 1 spec, Jan., 1849).— Cabaxis, Journ. fiir Orn., 1857, 236 

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

 Gundlach, Journ. fiir Orn., 1862, 94 (Cuba; crit.). — Schlegel, Mus. Pays- 

 Bas, vi, no. 23 (Lari), 1863, 22. 



L[anis] zonorhynchus Gray, Gen. Birds, iii, 1846, 654. — Bonaparte, Consp. Av., 

 ii, 1857, 224.— Martens, Journ. fiir Orn., 1859, 222 (Bermudas). 



[Lams] zonorhynchus Bonaparte, Compt. Rend., xlii, 1856, 771. — Gray, Hand- 

 list, iii, 1871, ill, no. 10949. 



[Larus {Glaucus)] zonorhynchus Bruch, Journ. fiir Orn., 1853, 102. 



[Gavina] zonorhynchus Bonaparte, Naumannia, 1854, 212. — Bruch, Journ. fiir 

 Orn., 1855, 282 (monogr.). 



[Larus (Glaucus)] occidentalis (not Larus occidentalis Audubon) Bruch, Journ. fiir 

 Orn., 1853, 101, pi. ii, fig. 20 (California). 



[Laroides] occidentalis Bruch, Journ. fiir Orn., 1855, 282 (monogr. j. 



[Gavina] bruchi Bonaparte, Naumannia, 1854, 212. 



[Larus (Gavina)] hruchii Bruch, Journ. fiir Orn., 1855, 283 (monogr.). 



[Larus zonorhjnchus] a. mexicanus Bonaparte, Consp. Av., ii, 1857, 224. 



[Larus zonorhynchus] b. bruchi Bonaparte, Consp. Av., ii, 1857, 224 (w. North 

 America.). 



[Larus] bruchi Bonaparte, Compt. Rend., xlii, 1856, 771. 



LARUS CANUS Linnasus. 



MEW GULL. 



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 gray (between pale and light neutral gray, and inter- 

 mediate in tone between that of L. argentatus and L. calijornicus), 

 the secondaries fading into white terminally (for about 20-25 mm.); 

 outermost primary black with a subterminal area of white, including 

 both webs and shaft, for a space of about 50-57 mm.; second primary 

 similar, but the white space smaller (about 25-32 mm. long), and the 

 basal portion more distinctly slaty; third primary usually'* without 

 any white except at tip, the basal portion abruptly gray; fourth 

 primary similar to third but the gray involving about basal half of 

 exposed portion and more sharply defined against the black; fifth 

 primary light gray, tipped with white and with a large subterminal 

 area of black, 25 mm. or more in Icjigth (extending anteriorly along 

 edges for about 19 mm. more), the light gray on inner web becoming 

 white or nearly so where touching the black subterminal area; sixth 

 primary with a subterminal black bar, about 12.7 mm, wide; remaining 

 (proximal) primaries light gray (like back, etc.), passing terminally 

 into white; bill greenish yellow (more olivaceous in dried skins), 

 purer yellow terminally; rictus and naked orbital ring vermilion red 



a In some examples, perhaps very old birds, there is a roundish spot of white on 

 inner web, about 38 mm. from tip. 



