3. TETEAOGALLUS. 103 



with irroy. Tarsi armerl with a pair of spurs. Total length 

 18-G iiiclies, wing 8"3, tail (r<i, tarsus 2-'2. 



Adult female. Differs from the male only in having the outer webs 

 of the seeondaries and secondary coverts more or less mottled with 

 butt' towards the margin, and in lacking the spurs on the tarsi. 

 Total length IS inches, wing 8, tail G, tarsus 2-1. 



Hdlj. Eastern Thibet : ranging from iloupin to Koko-nor and the 

 mountains of Kansu. 



a, 6. cJ $ ad. sk. Kansu, Jan. Berezowsky Coll. 



2. Tetraophasis szechenyii. 



Tetraophasis sz(5chenyii, Madard^z, Zeit. yes. Orn. ii. p. 50, pi. ii. 



(188.5) ; id. Ibis, 1880. p. 145 [Central Thibet] ; Oustal. Ann. Hci. 



Nat. (7) xii. p. 314 (1892) [Thibet and Ta-tsieSn-lou]. 

 Tetraophasis desgodinsi, Oustalef, Le Nat. 1881), p. 276 [Yer-ka-lo, 



Mekong H.] ; Sclut. ^- Saimd. Ibis, 1887, p. 112. 



Adult male. Differs from the male of T. ohsciirus in having the 

 lower back, rump, upper tail-coverts, aud middle tail-feathers grey 

 instead of pale olive- grey ; the chin, thi'oat, and fore part of neck 

 pale fawn-colour ; and the middle of the breast and belly mixed 

 with rufous buff and bloteiied with chestnut, like the sides and 

 thinks. Total length IT'O inches, wing 8-9, tail 6-1, tarsus 2-2. 



Adult female, llcsembles the male, but has no spurs aud is 

 slightly smaller. 



Hah. Mountains of Central Thibet, ranging north to the Sok 

 Pass, east to Ta-tsien-lou, and south to Yer-ka-lo, Mekong River. 



a. (S ad. sk. Between Chiamdo and the Sok Ilenrv Seebohm, Esq. 

 Pass, Thibet {Thuruld). [P.J. 



3. TETRAOGALLUS. 



lype. 



Tetraogallus, Gray, III. Ind. Zool. ii. pi. 4r> (^1833) ; 



id. List Gen. B. p. 62 (1840) T. bimalayensis. 



Chourtka, Mofsckoulski, Hull. Sue. Musc. i. p. 04, 



pis. viii. .V: xi. (1839) T. caucasicus. 



Megaloperdix, Brandt, Bud. Ac. St. Petersb. viii. 



p. 19J (1841), i. p. 281 (1843) T. cauciisicus. 



Oreotetrax, Cab. in Ersch u. Grub. Encijcl. sect. .'5, 



xxii. p. 144 (1846) " T. caucasicus. 



Sexes similar or slightly diflerent. 



Tail about g of the length of the wing, rounded, the outer pair of 

 feathers about 2 inches shorter than the middle pair. 



1st primary equal to the (ith ; 2nd to the 4th subecjual. 



Tarsus equal to, or slightly longer than, the middle toe aud claw. 



A naked elongate patch behind the eye. 



Banije. Mountains of Asia, extending west to Asia Minor and tho 

 Caucasus, east to Western Cliina, north to the Altai mountains, and 

 south to the mountains near Shiraz aud the Himalay;is. 



