632 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



of pule gray or grayish white; marks on eyelids dull pale yellowish, 

 and an indistinct pale dull yellowish supraloral streak. 



Adult >/w//t'.— Length (skins), 118.6-i;3.S.2 (125.7); wing, 59.4-65 

 (62.2); tail, 52.8-63 (55.6); exposed culmen, 10.9-11.7 (11.4); tarsus, 

 20.6-22.9 (21.6); middle toe, 12.7-13.7 (13.2).^ 



Adult female.^l^Qngih. (skins), 117.6-128 (123.2); wing, 5-1.6-59.9 

 (56.9); tail, 48.5-57.9(52.1); exposed culmen, 10.7-12.2 (11.2); tarsus, 

 20.1-21.3 (20.6); middle toe, 12.2-12.9 (12.7).' 



Western United States and British Columbia; breeding in mountains 

 from Pacific coast ranges to Rock}^ Mountains, north to British Colum- 

 bia (including Vancouver Island), south at least to Arizona (Fort 

 Whipple), New Mexico, and western Texas ("Castle Hill to Pecos 

 River"); during migrations east to western Nebraska (Sioux County), 

 central Texas (Gainesville; San Antonio), etc. ; south in winter to Cape 

 St. Lucas and over whole of Mexico and Central America to Colombia 

 (Bogota; Santa Elena). 



Sylvia tohniei TowNSEND (J. K.), Narrative, Apr., 1839, 343 (Columbia R. ; type 



incoll. U. S. Nat. Mus.)." 

 Sylvia iolnKxlTowTsisEyi), Joiirn. Ac. Nat. Sci. Phila., viii, 1839, (pub. 1840), 149, 



153, 159. 

 Trichas tolmxi Nuttall, Man. Orn. U. S. and Can., 2.1 ed., i, 1840, 460. 

 Trichas tolmcei Heermann, Journ. Ac. Nat. Sci. Phila., ii, 1853, 263 (California). 

 Trichas tolmieii Heermann, Rep. Pacific R. R. Surv., x, 1859, 40 (California). 

 Geothlypis tobniei Stone, Auk, xvi, Jan., 1899, 82, in text. — American Ornitholo- 

 gists' Union Committee, Auk, xvi, 1899, 122. — Crawford, Proc. Nebr. Orn. 

 Union, 2d ann. meet., 1901, 78 (Sioux Co., \v. Nebraska, 1 si)ec.. May 22). — 

 Bangs, Proc. New Engl. Zool. Club, iii, 1902, 61 (Boquete, Chiriqui, Jan. ?0). 

 Sylvia viacgillivrayi Audubon, Orn. Biog., v, 1839, 75 [pi. 399, figs. 4, 5] (Colum- 

 bia R.; type in coll. U. S. Nat. Mus.). 

 Trichas viacgillivrayi Audubon, Synopsis, 1839, 64; Birds Am., oct. ed., ii, 1841, 



74, pi. 100. 

 T[i^ichas'] macgillimayi Gray, Gen. Birds, i, 1848, 197. 

 \_Trichas'\ viacgillivrayi Bonaparte, Consp. Av., i, 1850, 310. — Gray, Ilanddist, i, 



1869, 242, no. 3505. 

 Sltjlvicohi'] macgillivrayi Maximilian, Journ. fiir Oni., vi, 1858, 118 (u]»per INIis- 



souri). 

 Geothlypis macgillivrayi Baird, Rep. Pacific R. R. Surv., ix, 1858, 244; ed. 1860 

 (Birds N. Am. ), pi. 99, fig. 4; Cat. N. Am. Birds, 1859, no. 173; Rep. U. S. and 

 Mex. Bound. Surv., ii, pt. 2, 1859, 10 (Monterey, Nuevo Leon, May); 

 Review Am. Birds, 1865, 227 (Orizaba, Vera Cruz; Coban and Duenas, 

 Guatemala).— Xantus, Proc. Ac. Nat. Sci. Phila., xi, 1859, 191 (FortTejon, 

 California).— Henry, Proc. Ac. Nat. Sci. Phila., xi, 1859, 106 (New Mexico).— 

 Cooper and Suckley, Rep. Pacific R. R. Surv., xii, pt. ii, 1860, 17" (Puget 

 Sound, etc. , Washington ; Fort Laramie, Wyoming). — Cabanis, Journ. fiir 

 Orn., 1861,84 (Costa Rica).— Sclater, Cat. Am. Birds, 1862, 27 (Jalapa, Vera 

 Cruz; Guatemala). — Coues, Ibis, 1865, 163 \Arizona); Proc. Ac. Nat. Sci. 

 Phila., xviii, 1866, 70 (Fort Whipple, Arizona, breeding); Check List, 1873, 

 no. 99; 2d ed., 1882, no. 143; Birds Col. Val., 1878, S12.— Brown, Ibis, 1868, 



^ Nine specimens. '^ Six specimens. 



^The same specimen afterwards became the type of Sylvia inacgillivray, Audubon! 



