24 



REVIEW OP AMERICAN BIRDS. 



[part I. 



Turdus leucaiictaen. 



Turdus leucauchen, Solater, P. Z. S. 1858, 447— Sclater, Ibis, 1859, 

 6.— Ib. Catal. Am. Birds, 1861, 3, no. 16. 

 Hab. Guatemala. Mexico? 



Description of No. 30,64T. (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, 1.16 ; 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. 



Smith- 



tsoniao 



No. 



22,360 

 32,684 

 20,688 

 30,647 



33,263 

 33,264 



Locality. 



"Mexico." 



Choctun, Vera Paz, 

 " [Guat. 



Guatemala. 



Bota Mts., Costa 

 " [Rica. 



When 

 Collected. 



Received from 



Jan. 1S60. 

 Jan.'27, '64. 



B. Verreanx. 



0. Salvin. 



Cab. of G. N. Law- 

 J. Carniol. [rence. 



Collected by 



30,647. "Compared witb type." 33,263. Length, 9 ; extent, 13. Iris yeUowish-brown. 

 33,264. Iris brown. 



Turdus assimilis. 



Turdus assimilis, Cab. Mus. Heiu. 1850, 4. — Solater, P. Z. S. 1857, 202 ; 

 1859, 370 (eggs).— Ib. Catal. Am. Birds, 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 



