110 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Mcrula tristis assimilis Chapman, Bull. Am. ^lus. N. II., x, Feb. 24, 1898, 19 

 (Jalapa; song; crit.). 



Flanesticus assimilis Bonaparte, Compt. Rend., xxxviii, 1854, 4. 



Turdus tristis (not Merula tristis Swainson) Sclater, Proc. Zool. Soc. Lend., 1856, 

 294 (Cordova, Vera Cruz), 1859, 330, part (monogr.). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, i, 1879, 15, part (Orizaba, etc., Vera Cruz; Teotal- 

 cingo and Juquila, Oaxaca?). — Seebohm, Cat. Birds Brit. Mus., v, 1881, 211, 

 part (in synonymy). — Sharpe, Bull. Brit. Orn. Club, no. 1, 1898, p. xxvi, 

 part (crit.); Ibis, 1898, 289, part (do.). 



[Turdus] tristis Sclater and Salvin, Nom. Av. Neotr., 1873, 1, part. 



Merula tristis Ferrari-Perez, Proc. U. S. Nat. Mus., ix, Sept. 15, 1886, 131 

 (Jalapa). 



[Merula] tristis Sharpe, Hand-list, iv, 1903, 123, part. 



[Flanesticus] tristis Heine and Reichenow, Nom. Mus. Hein., 1890, 3, part 

 (Jalapa). 



FLANESTICUS TRISTIS CNEPHOSA (Bangs). 



SALVIN'S THRUSH. 



Similar to P. t. assimilis, but more decidedly olive (less brown) 

 above, the color of upper parts averajrino; clear olive, but varying 

 from brownish olive to grayish olive in extremes; the chest, sides, 

 and flanks averaging light hair brown. 



Adult maZe.— Length (skins), 208-232 (215); wing, 113-125.5 

 (121.9); tail, 79-103 (92.9); exposed culmen, 19-21 (19.7); tarsus, 

 28 5-32 (30); middle toe, 19-23 (20.5).« 



Adult female.— Length (skins), 212-217 (214); wing, 117-120 

 (118.1); tail, 87-93 (91.1) ; exposed culmen, 19-20.5 (19.9); tarsus, 

 28.5-30.5 (29.5); middle toe, 19-21 (19.9).'' 



o Fourteen specimens. 

 i> Five specimens. 



Specimens from different geographic areas compare m average measurements as 

 follows : 



I am not able to discover any difference in coloration between specimens from dif- 

 ferent localities, except such as indicate individual variation, which is consideral^le. 



