10. MAKQAKOPEllDIX. 195 



A quite youwi bird differs principally from the young of P.j>erdix 

 iu having the black cheek-marks indicated by brownish-black 

 patches. 



Hob. Southern Thibet, just extending into India, in Cashmere, 

 Gurhwal, and Kumaon ; also Native Sikhim and Darjeeling. 



a, b. Ad. sk. I.adak. Hume Coll. 



c. Ad. St. Nobra, N. of Ladak. Capt. Smith [C.]. 



d-7n. Ad., imm., at Thibet, Sept. to Dec. Hume Coll. 



juv. sk. (Z. Mandelli). 



n. Ad. sk. Tsang, Thibet. B. H. Hodgson, Esq. [P.]. 



(Type of the species.) 



o, ^;. 5 ^d- sk. Interior of Native Sik- Hume Coll. 



him, May {L. Mandelli). 



q. cS ad. sk. Darjeeling. Hume Coll. 



4. Perdix sifanica. 



Perdix sifanica, Prjevalsky, Mongolia, ii. p. 124 (1876) ; id. Rotoley'g 

 Orn. Misc. ii. p. 423 (1877) [Mts. of Kansu] ; Dedit. J.f. 0. 1886, 

 pp. 528, 53n, 536, 540 [Nan-shan Mts.] ; Pleske, Bull. Acad. St. 

 Petersb. xiii. p. 297 (1892) [North Nan-shan and Si-nmg Mts.]. 



Adult male and female. DiflFer from P. hodgsonice in having no 

 black patch on the middle of the lower breast, all the feathers of 

 the chest, breast, and belly being whitish, with a subterminal black 

 bar ; the black patch on the hinder part of the cheek and side of 

 the throat much reduced ; and the subterminal bars on the feathers 

 of the lower part of the mantle chestnut instead of black, as is 

 the case in almost all specimens of P. hodgsoiiuv. Hodgson's type 

 specimen is the only example of the fifteen specimens before me in 

 which these are chestnut and resemble the present species, though 

 one bird from Ladak is somewhat intermediate. This species is 

 also somewhat smaller. 



Male. Total length 10*5 inches, wing 5*9, tail 3"2, tarsus 1'6. 



Female. Total length 10-5 inches, wing 5"55, tail 3, tarsus 1'55. 



Hub. Northern Thibet, Kansu, Nan-shan and Si-ning Mountains. 



a,b. cJ 2 ad. sk. Kansu, April, Oct. M. Berezowsky [C.]. 



c, d. (S 2 "id. sk. Kansu, April, June (Grutn- St. Petersburg Mus. 

 Grziinailo). [E.]. 



Typo. 



10. MARGAROPERDIX. 



Margaroperdix, Reichenb. Sat. Syst. Voi/el, 



p. xxviii (1852) M. madagascariensia. 



Tail with 12 feathers, wedge-shaped, the centre pair of feathers 

 considerably longer than the next pair and about half tiie length 

 of the wing. 



1st primary falls between the 6th and 7th, and is not much 

 shorter than the longest. 



Tarsus without a spur, and shorter than the middle toe and claw. 



Claws moderate, somewhat curved. 



Range. Madagascar ; lleunion (introduced). 



o2 



