180 SERINUS. 



g^. With a small amount of dull yellow on 



the wings and tail, confined to the 



margins of the quills and tail-feathers. 



«'". Crop more uniform brown than the 



flanks ; throat mostly brown with the 



chin blackish. 



i*. Breast whiter ; flanks more strongly 



streaked burtoni. 2. o ^ 



h*. Breast more isabelline ; flanks less 



streaked albifrons. ^ ^ ^ 



k^. Crop strongly streaked like the flanks. 

 I*. Throat white. 

 g^. No shade of yellow on the lower 



back striolatus. -z. / / 



h^. Lower back washed with yellow, 

 e^. Darker; below more strongly 



streaked flaviventris, ? . 



/". Paler; below less strongly 



streaked mberbis, ? . 



??i* . Throat and a broad eyebrow, yellow ivhytei. -^ . .. 

 d'^. No yellow on the wings or tail. 



h". Smaller ; wing not more than 2-7 inches. 



l^. Tail chestnut or bright cinnamon . . alario. 2 i 2 

 m^. Tail earthy brown. 



re*. Lower back pure white leucopygius. 2 I 4 



0*. Lower back bright yellow. 

 i^. Some white ends to the tail- 

 feathers aiujoleiisis. .2 / j 



k^. No white ends to the tail-feathers. 

 g^. Plumage more streaked ; flanks 



streaked rciclienoivi. j^i a 



h^. Plumage less streaked ; flanks 

 uniform. 

 I a''. Chin and throat entirely 



^/ white \anthopygius. i 2, o 



' 6'. A yellow patch on the throat flavigula. ;, , 



i". Larger ; wing not less than 2'8 inches. 

 n^. Paler; rump yellowish, 

 p*. Paler; rump bright yellow . . . crocopygms. 2. i. i_ 

 2*. Darker; rump only washed with 



yellow albigularis. z 2. 3 



0*. Darker; rump brown like the mantle leit,copterus. 2. s. v 



