Ploceidae of the Ethiopian Region. 45 



and a white speculum on the wing. In the immature birds 

 the bill is yellow, and there is no white forehead or speculum ; 

 the upper parts are more rufous and somewhat mottled, and 

 the underparts white, or nearly so, mottled with dark brown. 

 To a bird in this plumage must be referred Conjphegnathus 

 schiffi, Bp. (Consp. i. p. 451) ; but to which of the four 

 species, an examination of the type can alone decide. 



Key to the Species. 



a. Larger and darker. The white of the forehead 



never extending back over the entire front half 



of the crown. The white speculum much larger, 



about 0'4 inch broad. 



a}. Darker and generally smaller : wing SG 



hiches. The head and neck with scarcely 



any rufous shade 181. A. unicolor. 



6\ Paler and generally larger : wing .3'6 to 4 

 inches. The head and neck decidedly more 

 rufous than the back. 

 6^. Head and neck deep chestnut-brown. Wing 



3-9 to 4 inches 182. A. alhifrons. 



c^. Head and neck lighter chestnut. Wing 



3-6 to 3'7 inches 183. A. melanotis. 



h. Smaller and paler : wing 3'3 to 3-35 inches. 

 Head and neck fawn-colour. The white on 

 the head extending over the entire front half of 

 the crown. The white speculum much smaller, 

 about 0'2 inch broad. Abdomen slate-colour. . 184. A. capitalbus. 



181. Amblyospiza unicolor. 



Pyrenestes alhifrons, Sharpe (nee Vigors), P. Z. S. 1873, 

 p. 713, Mombas. 



Pyrenestes unicolor, Fisch. & Reichen. J. f. O. 1878, p. 264, 

 Zanzibar. 



Amblyospiza unicolor, Shelley, P. Z. S. 1881, p. 589. 



Coryphegnathus unicolor, Fisch. J. f. O. 1885, p. 134. 



Hab. E. Africa : Zanzibar Province, between about 1° and 

 6° 30' S. lat. 



182. Amblyospiza albifrons. 



Pyrrhula albifrons. Vigors, P.Z. S. 1831, p. 92, Inland from 

 Delagoa Bay. 



