1881,] BIRDS FROM EASTERN AFRICA. 589 



to Iiihambane, near the mouth of the Limpopo, where the type was 

 collected. 



126. Amblyospiza unicolor. 



Pyronestes albifrons, Sharpe, P. Z. S. 1873, p. 715. 



Pyronestes unicolor, Fischer & Reichenow, J. f. O. 1878, p. 264 ; 

 Fischer, torn. cit. pp. 283, 354 ; id. J. f. O. 1879, pp. 280, 303 ; 

 Fischer & Reichenow, torn. cit. p. 353; Fischer, J. f. 0. 1880, 

 p. 193. 



Lamo ; Pangani ; Usambara mountains. 



This species is confined to East Africa, where as yet it is only 

 known of from the northern half of the Zanzibar province. 



It differs from the South- African P. albifrons in its smaller size 

 and darker colouring. The young, as in the South-African species, 

 has the bill bright yellow, the plumage much paler and more rufous 

 than in the adult, and the breast mottled with whitish. 



127. Passer swainsoni. 



Passer swainsoni (Riipp.), Finsch & Hartl. Vdg. Ostafr. p. 450 

 (pt.) ; Fischer, J. f. O. 1877, p- 180 ; Fischer & Reichenow, J. 

 f. O. 1878, p. 266; Fischer, tom. cit. p. 281 ; id. J. f. 0. 1879, 

 pp. 286, 302. 



Mehnda. 



In Africa there are three closely allied species of Sparrows, which 

 Drs. Finsch and Hartlaub {loc. cit.) unite as one. These are : — 



P. swainsoni, Riipp. 



P. gularis, Less. (The title P. simplex, Licht., was misapplied 

 to this species by Swainson.) 



P. cliffusus. Smith. 



Collectively they range over the whole of Africa south of about 

 1 5° N. lat. 



P. sivainsoni inhabits the north-eastern region to as far south as 

 Zanzibar ; P. yularis, West Africa, from Senegal to the Gold Coast ; 

 P. (Hffusus, the whole of South Africa and the east coast north- 

 ward to Lamo. 



Although P. swainsoni and P. diffusus meet in East Africa, they 

 preserve their identity, and therefore cannot, in my opinion, be re- 

 garded as mere rsices of one species. 



128. Passer diffustjs. Smith. 



Passer diffusus, Nicholson, P. Z. S. 1878, p. 358 ; Cab. J. f. O. 

 1878, p. 228 ; Fischer & Reichenow. J. f. O. 1880, p. 143. 

 Lamo ; Pangani; Dar-es-Salaam. 



129. Crithagra chrysopyga. 



Crilhagra butijracea, Finsch & Hartl. Vog. Ostafr. p. 455 (part) ; 

 Fischer, J. f. O. 1877, pp. 181, 206 : id. J. f. O. 1879, pp.280, 300, 

 303. 



