142 Lloyd's natural history. 



curved. Feet in both sexes provided with a pair of stout spurs 

 Sexes quite different. 



Only two species are known. 



I. THE LONG-BILLED FRANCOLIN. RHIZOTHERA LONGIROSTRIS. 



Perdix longirostris^ Temm. Pig. et Gall. iii. pp. 323, 721 (18 15) 



[male]. 

 Tetrao curvirostris^ Raffl. Trans. Linn. Soc. xiii. p. 323 (1822) 



[female]. 

 Francoliims longirostris^ J. E. Gray, 111. Ind. Zool. ii. pi. 45, fig. 



2 (1833-4). 

 Rhizothera longirostris^ G. R. Gray; Kelham, Ibis, 1882, p. 4; 



Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 183 (1893). 

 Adult Male. — Top of the head rich brown ; general colour 

 above chestnut, blotched with black, shading into grey, mixed 

 with buff on the lower back and upper tail-coverts ; sides of 

 head and throat reddish-chestnut; neck, chest, and upper 

 mantle grey-, rest of under-parts rufous-buff. Total length, 

 14-6 inches; wing, 77 ; tail, 3-5 ; tarsus, 2*2. 



Adult Pemale. — Differs from the male in having the neck and 

 chest rufous-chestniit^ and the lower back and upper tail-coverts 

 ffiostly buff. Slightly smaller than the male. 



liange. — Southern part of the Malay Peninsula, and extend- 

 ing to Sumatra and Borneo. 



II. hose's long-billed FRANCOLIN RHIZOTHERA 

 DULITENSIS. 



Rhizothera dulitensis, Ogilvie-Grant, Bull. Brit. Orn. Club, iv. 

 p. xxvii. (1895). 



[Plate XI c.) 



Adult Male. — Easily distinguished from the male of R. longi- 

 rostris by having the whole chest and breast grey, and the rest 

 of the under-parts white. 



Adult Female. — Differs from the female of R. longirostris in 

 its generally richer colouring and in having the general colour 

 of the outer wing-coverts dark brown, with comparatively few 

 buff markings. 



