THE LONG-BILLED FRANCOLINS. I41 



of the belly, sides, and flanks similar, but with dull chestnut 

 margins ; bill dusky ; naked skin round eye and on throat 

 orange-red, shading into yellow ; feet dusky-red. 



Male. — With a pair of sharp spurs, sometimes supplemented 

 by a second blunt pair. Total length, 15 inches; wing, 8'i ; 

 tail, y6 ; tarsus, 2*5. 



Female. — Somewhat smaller and devoid of spurs. 



Range. — North-east Africa; Bogosland, Abyssinia, Shoa, and 

 North Somali-land. 



IX. CABANIS' BARE-THROATED FRANCOLIN. PTERNISTES 

 INFUSCATUS. 



Ptemistes infuscatus, Cabanis, J. f. O. 1868, p. 413, and in 

 V. d. Decken's Reis. iii. p. 44, pi. 14 (1869); Ogilvie- 

 Grant, Cat. B. Brit. Mus. xxii. p. 182, pi. viii. fig. 2 



(■893)- 



Adult Male and Female. — Like P. leucoscepus, but distinguished 

 by having the feathers of the chest brown, shading into chest- 

 nut towards the base, and each with narrow zvhite shaft-stripes 

 forming a triangular white patch at the extremity, so that the 

 predominating colour is broivn instead of white. 



Range. — This is a more southern representative of P. 

 leucoscepus, and it is probable that the two forms intergrade in 

 Somali-land. The typical form is found in East Africa from 

 Mamboio northwards to Kilimanjaro, the Teita district, and 

 Southern Somali-land. 



THE LONG-BILLED FRANCOLINS. GENUS RIIIZOTHERA. 



Rhizothera, G. R. Gray, List Gen. B. 2nd ed. p. 79 (1841). 

 Type, R. longirostris (Temm.). 



Differs chiefly from Francolinus in having only twelve tail- 

 feathers. The tail is rather more than half the length of the 

 wing ; the first primary flight-feather is about equal to the 

 tenth, the sixth slightly the longest. Bill very stout, long, and 



