110 PHASIAirrD.E. 



6. Tetraogallus aitaicus. 



Perdix aitaicus, Gehler, Bull. Sci. Acad. St. Petersh. i. p. 31 (1837), 



iv. p. 30 (1840) [Altai"]. 

 Perdix (Meo-aloperdix) altaica, Brandt, Bull. Acad. St. Fetersb. viii. 



p. 190 (1840), i. p. 28:2 (1843), iii. p. 188 (1845). 

 Tetraoo-allus aitaicus, Grai/, P. Z. S. 1842, p. 105; id. List of B. 



pt. iii. Gall. p. 30 (1844) ; Gould, B. Asia, vii. pi. 31 [text] (1853) ; 



Grail, List Gallina> Brit. Mus.^. 83 (1867); id. Hand-l. B. ii. 



p. 275 (1870) ; Finsch, Verh. Ges. Wien, xxix. p. 240 (1880). 

 Megalopei'dix altaica, Badde, Peis. Ogt-Sih. ii. p. 304 (1863) ; Tacz. 



J. f. 0. 1873, p. 98; Boyd. Consp. Av. Imp. Boss. fasc. i. p. 39 



(1884). 

 Oreotetrax altaica, Badde, J.f. 0. 1876, p. 218. 



Adult male and female. Differ from T. caspius in having the 

 sides of the neck and the mantle grey, lilve the top of the head, the 

 latter rather paler on the lower parts and separated from the rest 

 of the back by a blackish band ; the rest of the upper parts darker, 

 and the edges of the wing-coverts and feathers of the lower back 

 and rump margined with white, never chestnut ; no white on the 

 basal part of the secondaries ; the chin and middle of the throat 

 and neck white, the lateral feathers of the two latter with black 

 shafts and terminal black dots ; the feathers of the lower part of 

 the chest with a pair of white terminal spots, one on each side of 

 the shaft, and edged internally with black ; the breast and sides 

 white, the belly white mixed with blackish grej' ; the flanks and 

 thighs blackish, finely vermiculated here and there with buff. The 

 primaries with much less white on the basal parts, and the outer 

 tail-feathers grey, blackish towards the extremity, and shading into 

 whitish on the basal part of the inner webs. Bill blackish ; legs 

 and feet orange (in skin). Total length 23 inches, wing 10-9, tail 

 6-8, tarsus 2'4. 



A younrjer male with the outer primaries pointed does not other- 

 wise differ in plumage from the adult. 



Hah. Altai ranges. 



a. S vix ad. sk. Altai Mountains, April. Mr. Brandt. 



6. [ 5 ] ad. sk. Altai Mountains (Kibori). St. Petersburg Aluseura 



[E.]. 



4. CACCABIS. 



Type. 



Caccabis, Kaup, Natiirl. Syst. p. 183 (1829) C. saxatilis. 



Alectoris, Kaup, Natiirl. Syst. p. 180 (1829) C. petrosa. 



Chacura, Hodgs. in Grays Zonl. Misc. p. 85 (1844) .... C. chukar. 

 Pyctes, Hodgs. in Gray's Zool. Misc. p. 85 (1844) C. chukar. 



Sexes similar. 



Tail with 14 feathers ; somewhat rounded, and •§• of the length 

 of the wing. 



1st primary about equal to 6th ; 3rd slightly longest. 



The subterminal part of the outer webs of the primaries buff. 



