272 FBINGILLID^;. 



11. Montifringilla arctoa. 



Passer arctous, Pall. Zoogr. Bosso-Asiat. ii. p. 11 (1811). 



Fringilla (Linaria) gebleri, Brandt, Bull. Sci. Acad. St. PStersb. x. 



p. 251 (1842). 

 Fringilla arctoa, Gray, Gen. B. ii. p. 372 (1849). 

 Montifringilla arctoa, Bp. Sf Schl. Monogr. Loxiens, p. 38, pis. 44, 45 



(1850) ; Govld, B. Asia, v. pi. 2 (1851) ; Homeyer, J.f. 0. 1879, 



p. 175, 1880, p. 153. 

 Leucosticte arctoa, Bp. Consp. i. p. 537 (1850) ; Baird, B. N. Amer. 



p. 430, pi. 74. fig. 1 (1858) ; Dybowski $ Parvex, J. f. O. 1868, 



p. 335 ; Salvad. P. Z. S. 1808, p. 580 ; Baird in Cooper, B. Calif. 



p. 165 (1870) ; Tacz. J. f. O. 1873, p. 91 ; id. Bull. Soc. Zo'ol. 



France, i. p. 178 (1876) ; Bidgw. Proc. U. S. Nat. Mus. iii. p. 213 



(1880); Homeyer 8f Tancre, MT. Orn. Ver. Wien. 1883, p. < c 9 ; 



Cones, Key N Amer. B. 2nd ed. p. 352 (1884). 

 Montifringilla gebleri, Salvad. P. Z. S. 1868, p. 580. 

 Linaria arctoa, Gray, Hancl-l. B. ii. p. 110, no. 7658 (1870). 

 Fringilla gebleri, Gray, t. c. p. 85, no. 7254 (1870). 

 Hypolia arctoa, Bidgw. Proc. U. S. Nat. Mus. iii. p. 236 (1880). 



Adult. General colour above uniform dark chocolate-brown, 

 with slight traces of paler edges to the feathers of the mantle and 

 back ; lesser wing-coverts dark chocolate-brown like the back ; 

 median coverts hoary blackish along the shafts and at the tips ; 

 greater coverts, bastard-wing, primary-coverts, and quills ashy, 

 externally hoary white, the shafts blackish as well as the end of the 

 feathers ; upper tail-coverts and tail-feathers hoary white, dusky 

 blackish at the tips ; crown of head like the back, with an indis- 

 tinct band of light brown, commencing from behind the eye and 

 encircling the nape and hind neck ; lores blackish ; ear-coverts, 

 cheeks, and entire under surface of body dark chocolate- brown, with 

 a very faint reddish tint ; thighs dark chocolate-brown ; under tail- 

 coverts hoary white with blackish shaft-lines ; under wing-coverts 

 brown, washed with hoary grey at the ends ; axillaries like the 

 breast ; quills below dusky, ashy whitish along the inner edge. 

 Total length 6 - 5 inches, culmcn 0-5, wing 4-35, tail 2-75, tarsus 0*8. 



The sexes do not differ in colour. An adult female measures : — 

 Total length 6-5 inches, culmen 0-5, wing 4-3, tail 2-9, tarsus 0-8. 



Young birds in first winter plumage are much paler brown, with 

 dull sandy-coloured edges to the feathers, and having the back mottled 

 with dusky centres ; the sides of the face and the entire under 

 surface of the body have the feathers edged with pale ashy, the 

 abdomen becoming lighter. 



Hab. Eastern Siberia. 



a-e. Ad. sk. E. Siberia. Moscow Museum. 



/. S imm. sk. Kultuk, Lake Baikal, Nov. 8. Purchased. 



g. Ad. st. Sea of Ochotsk. Purchased. 



