672 BULLETIN 50, UJSTITED STATES NATIONAL MUSEUM. 



G[eolUypvi] irichas ocddentalis Eidgway, Man. N. Am. Birds, 1887, 523, p?.rt. 

 Oeothlypis trichas arizela Oberholsee, Auk, xvi, July, 1899, 257 (Fort Steilacoom, 



Washington; coll. U. S. Nat. Mus.). 

 Geothhipia trichas scirpicola Grinnell (J. ), Condor, iii. May, 1901, 65 (El Monte, 



Los Angeles Co., California; coll. J. Grinnell). 



GEOTHLYPIS TRICHAS MODESTA Nelson. 

 SAN BIAS TELLOW-THROAT. 



SiDiilar in size and coloration to G. t. arizela but with the bill decid- 

 edly larger (as large a.s in G. t. occidentalis)\ much duller in color 

 than G. t. occidentalism with yellow of under parts either paler, less 

 orange, or less extended, and with olive-green of upper parts duller 

 and grayer. 



Adult wmZ*'.— Length (skins), 111-125 (118.2); wing, 52-58.5 (55.3); 

 tail, 17-54 (51.1); exposed culmen, 11-12 (11.1); tarsus, 19-21.5 (20.8); 

 middle toe, 12-14 (13.5.)^ 



Adult /tfwa/.'.— Length (skins), 111-117 (115.3); wing, 52; tail, 

 45..5-50 (48.2); exposed culmen, 10-11 (10.3); tarsus, 19-20 (19.5); 

 middle toe, 12.5-14(13.2.)' 



Western and central Mexico, in Territory of Tepic and States of 

 Sonora (Ortiz), Sinaloa, Jalisco, and Colima (also States of Puebla and 

 Tlaxcala ?). 



(?) Geothlypis trichas (not Tardus trichas Linnaeus) Sclater, Proc. Zool. See. 



Lond., 1856, 292 (Mexico). — Dugbs, La Naturaleza, i, 1870, 140 (Guanajuato). 

 Geothlypis trichis Lawrence, Mem. Boat. Soc. N. H., ii, 1874, 269, part (Tepic).— 



B.MRD, Brewer, and Eidgway, Hist. N. Am. Birds, i, 1874, 297, part.— 



Salvin and Godman, Biol. Centr.-Am., Aves, i, 1881, 150, part (Tepic; 



Guanajuato ?). 

 [Geothlypis] trichas Sclater and Salvin, Nom. Av. Neotr., 1873, 9, part. 

 (?) Geothlypis trichas ocddentalis (not of Brewster ?) Ferrari-Perez, Proc. U. S. 



Nat. Mus., ix, 1886, 137 (Huexotitla, Puebla, Jan.; Laguna del Eosario, 



Tlaxcala, Jan. ). 

 Oeothlypis trichas modestus Nelson, Auk, xvii, July, 1900, 269 (San Bias, Tepic, 



w. Mexico; coll. U. S. Nat. Mus.). 



GEOTHLYPIS TRICHAS SINUOSA Grinnell. 

 SALT HARSH YELLOW-THROAT. 



Siniilar to G. t. a/rizela, but much smaller and slightly darker, espe- 

 cially on sides and flanks. 



Adult male.—L&n^th (skins), 105-111 (107.2); wing, 50-54 (52.6); 

 tail, 45-50 (48.3); exposed culmen, 10-10.8 (10.2); tarsus, 19-20.5 

 (19.9); middle toe, 12-13.5 (12.5).' 



•Ten specimens. '■'Three specimens. ' Five specimens. 



