17. SPERMOPHILA. 101 



edged with olive-brown ; crown of head like the back ; lores and 

 feathers round eye ashy whitish ; ear-coverts dull ashy brown ; 

 cheeks and under surface of body whitish, washed with yellow ; 

 the fore neck and sides of body light ashy brown ; thighs pale ashy 

 brown, internally white ; under tail-coverts white, with an olive- 

 yellow tinge ; under wing-coverts white, tinged with yellow ; 

 axillaries olive-yellow ; quills below dusky, ashy along the inner 

 web, which is whitish towards the base : " bill brownish, with the 

 lower mandible greyish horn-colour, fleshy underneath ; feet dark 

 lead-colour ; iris dark brown " (Jelshi). Total length 4-3 inches, 

 culmen 0-35, wing 2-35, tail 1*7, tarsus 0-6. 



The sexes, as determined by Prof. Nation, are alike. The female 

 measures : — Total length 4-5 inches, culmen 0-4, wing 2-25, tail 1*8, 

 tarsus 0*6. 



Young specimens, according to Dr. Taczanowski, differ from the 

 adults in having a faint tinge of brownish on the upper parts, this 

 tint being also apparent on the whitish under surface ; the white 

 bands on the wings are less pronounced and have a reddish tinge, as 

 well as the margins of the scapular plumes. 



Hab. Peru. 



a, b. c? $ ad. ; Lima, Peru (Prof. Nation). Sclater Coll. 



c. Juv. sk. 

 d. tf ad. sk. Callacate, Peru (J. Stolzmann). Sclater Coll. 



7. Spermophila obscura. 



Spermophila obscura, Tacz. P. Z. S. 1874, p. 519 ; id. Orn. Perou. 



hi. p. 17 (1886). 

 Spermophila omata, 5 ( nec Licht.), Salvin, Ibis, 1880, p. 353. 



Adult male. General colour above uniform brown, slightly washed 

 with olive ; lesser and median wing-coverts like the back ; greater 

 coverts, bastard-wing, primary- coverts, and quills dusky brown, 

 edged with lighter brown , somewhat reddish brown on the quills ; 

 tail-feathers brown, washed externally with olive-brown ; head a 

 little more ashy brown than the back ; lores and eyelid pale ashy 

 whitish ; sides of face dull ashy brown ; cheeks, throat, and under 

 surface of body ashy, a little washed with olive-brown on the 

 flanks ; centre of breast and abdomen dull whitish ; thighs ashy 

 fulvous ; under tail-coverts dusky, edged with fulvous ; axillaries 

 like the breast : under wing-coverts dusky, broadly edged with pale 

 fulvous ; quills dusky below, ashy fulvous along the inner web : 

 " upper mandible blackish brown, the lower one paler and approach- 

 ing fleshy yellow ; feet fleshy : iris dusky brown " (Jelsl-i). Total 

 length 3-8 inches, culmen 0-4, wing 24, tail 1-55, tarsus 0*65. 



Adult female. Similar to the male, but a little browner grey : 

 " bill brown, the upper mandible darker ; legs and feet flesh-colour ; 

 iris wood-brown " (H. Dwnford). Total length 4 inches, culmen 

 0-4, wing 2-25, tail 1-75, tarsus 0-65. 



Both specimens have slight traces of a wing-bar formed by lighter 

 brown tips to the median wing-coverts. The Salta specimen is a 



