636 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult v;w</e^.— Length (skins), i 18-137 (129); wing, 57. 5-63 (61); 

 tail, -13.5-51(48.1); exposed culmen, 15.5-18(16.6); tarsus, 21-23 (21.9); 

 middle toe, 13-16(14.6)." 



Adult female.— \uQ^\gM\ (skins), 115-126 (120.5); wing, 54-56 (55.5); 

 tail. 40.5-45 (43.1); exposed culmen, 15.5-16 (15.9); tarsus, 20-21 (20.6); 

 middle toe, 13-15(13.7).^ 



Western Mexico, in States of Sinaloa (Mazatlan; Plomosas), Jalisco 

 (Barranca Ibarra; Itzatlan; San Sebastian; Guadalajara; Las Palmas; 

 Tuxpan) and Colima (Manzanillo; plains of Colima), and Territory of 

 Tepic (Tepic; San Bias). 



IThryolhorus'] sinaloa Baird, Review Am. Birds, Aug., 1864, 122 (diagnosis). 



Thrijophilus sinaloa Bairb, Review Am. Birds, Sept., 1864, 130 (Mazatlan, Sina- 

 loa; coll. U. S. Nat. Mus.).— Lawrence, Mem. Bost. Soe. N. H., ii, 1874, 

 268 (Mazatlan, Sinaloa; Colima; habits; descr. nest and eggs). — Salvin and 

 Godjman, Biol. Centr.-Am., Aves, i, 1880, 83. — Sharpe, Cat. Birds Brit. 

 Mus., vi, 1881, 218.— JouY, Proc. U. S. Nat. Mus., xvi, 1894, 777 (Barranca 

 Ibarra, Jalisco; habits). 



[TJiri/ophilus'] dnnloa Sclater and Salvin, Nom. Av. Neotr., 1873, 6. 



[Troglodytes'] sinaloa Gray, Hand-list, i, 1869, 190, no. 2598. 



THRYOPHILUS SINALOA CINEREUS Brewster. 

 ASHY WREN. 



Similar to T. s. sinaloa, but decidedly paler and grayer, the general 

 color of upper parts much nearer to broccoli brown than raw umber, 

 the rump and upper tail-coverts between cinnamon and wood brown, 

 the flanks wood l)rown or Isabella color. ^ 



Adult 7)1 ale.— Ijength (skins), 124-131 (130); wing, 59.5-64.5 (61.6); 

 tail, 46-50 (48.3); exposed culmen, 16-17.5 (16.6); tarsus, 21-22.5 

 (21.7); middle toe, 13.5-15 (14).^^ 



Adult female. — Length (skin), 119.5; wing, 57; tail. 42.5: exposed 

 culmen, 15; tarsus, 21.5; middle toe, 14.'' 



Northwestern Mexico, in States of Sonora (Alamos; Ysleta), Chi- 

 huahua (Hacienda de San Rafael; Durasno; Batopilas), and Durango 

 (Chacala). 



Thryophilus sinaloa cinereus Brewster, Descr. Sup. New Species Birds W. N. 

 Am. and Mex., Jan. 31, 1889, 96; Auk, vi, Apr., 1889, 96 (Alamos, Sonora, 

 Mexico; coll. W. Brewster). 



« Ten specimens. 



6 Four specimens. 



c Several of the specimens examined show more or less speckling of dusky on the 

 lower abdomen, a feature which I find in only one example of a much larger series 

 of T. s. sinaloa, and in that indicated but slightly. Two of the supposed characters 

 of T. s. cinereus mentioned in the original description, stouter bill and grayer under 

 parts, I am unable to verify. 



'■^ Seven specimens. 



« One specimen. 



