24 



REVIEW OF AMERICAN BIRDS. 



[part I. 



Turdus leucaiiclien. 



Tardus leucauchen, Sclater, P. Z. S. 1858, 447.— Sclatek, Ibis, 1S59, 

 6. — Ib. Catal. Am. Birds, 18(J1, 3, no. US. 



Hab. Guatemala. Mexico? 



Description of No. 30,647. (Compared with type.) Above black- 

 ish ash, with tinge of olivaceous ; wings and tail blackish brown, 

 almost black. Beneath pale brownish ash ; axillars and under wing 

 coverts tinged with yellowish ; flanks rather darker ; middle of abdo- 

 men and crissum white. Inner edges of the quills towards base not 

 lighter than elsewhere, but brown. Chin and upper throat white, 

 the feathers streaked centrally with black ; a conspicuous pure white 

 patch at lower end of throat. Legs horn color ; bill yellowish, 

 tinged with brown along culmen towards the tip. 



Length, 9.25 (skin) ; wings, 4.80 ; tail, 4.20 ; bill, from nostril, .50 ; 

 tarsus, I.IG; middle toe and claw, 1.10; longest primary (4th and 

 5th), 1.10, longer than the shortest; 2d intermediate between 6th 

 and 7th. 



Specimens from Costa Rica, compared with 30,647, are smaller; 

 the back more olivaceous ; the median line of the belly whiter; the 

 crissal feathers longer and more edged with plumbeous ; the bill 

 more tinged with brown. A triangular yellowish spot in the larger 

 coverts apparently indicates a slight immaturity. 



Locality. 



"Mexico." 



Choctun, Vera Paz, 

 [Guat. 

 Guatemala. 

 Dota Alts., Costa 

 " [Rica. 



When 

 Collected. 



Jan. 1860. 

 Jan.27, '64. 



Keceived fiom 



E. Verreaux. 

 0. Salvin. 



Cab. of G. N. Law- 

 J. Carniol. [rence. 



Collected by 



30.647. "Coinp.ired with type." 33,263. Length, 9; extent, 13. Ins yellowish-brown. 

 33,264. Iris brown. 



Turdus assimilis. 



Turdus assimilis, Cab. Mus. Hein. 1850, 4.— Sclater, P. Z. S. 1857, 202 ; 

 1859, 370 (eggs).— Ib. Catal. Am. Bi/ds, 1861, 3, no. 15. 



Hab. Mexico (Vera Cruz, Orizaba, Oaxaca;. Guatemala. 



No. 22,351. Upper parts uniformly yellowish-olive, very much 

 as in the brighter varieties of Turdus swainsonii. Wing and tail 

 feathers (concealed portions) brown, of similar shade, without the 



