SCITJBOPTEBUS. 367 



colour is rufous brown. Basal three fourths or more of the dorsal 

 hair dark ashy, terminal portion light brown, extreme tip of longer 

 hairs black. Lower parts white, sullied and brownish beneath 

 the parachute. Tail brown, the hairs ashy at the extreme base, 

 and with long black tips. 



Dimensions. Head and body 10 inches long, tail without hair 

 10-5, with hair 12, ear outside 1'5, hind foot from heel 2-1 ; basal 

 length of skull 2, extreme length 2-3, zygomatic breadth 1'4. 



Distribution. Throughout the North-western Himalayas from 

 Simla, and in all pi-obability Kumaon to Kashmir, Gilgit, and 

 Chitral, at considerable elevations, 6000 to 12,000 feet in Gilgit. 

 Also found in Afghanistan, a specimen having been brought from 

 Peiwar Kotal. This species is probably that named S. baberi by 

 Blyth (J. A. S. B. xyi, p. 866) from Nijrow. 



Ifabits. So far as is known, similar to those of Pteromys. Four 

 young have been found in a female of this species. 



234. Sciuropterus alboniger. The particoloured Flying-Squirrel. 



Sciuropterus alboniger, Hodgson, J, A. S. B. v, p. 231 (1836) ; Blyth, 

 J. A. S. B. xvi, p. 866; id. Cat. p. 97; Jerdon, Mam. p. 179 ; 

 Thomas, P. Z. S. 1886, p. 59. 



? Pterornys leachii,GVy, CharleswortK s Mag. N. H. i, p. 584 (1837). 



Sciuroptera turnbulli, Gray, P. Z. S. 1837, p. 68 ; Blyth, J. A. S. B. 

 xii, p. 928. 



Pteromys alboniger, Anderson, An. Zool. Res. p. 298. 



Ears large, thinly clad, without pencils at the base. Tail flat, 

 distinctly distichous ; hair on lower surface short. No supple- 

 mentary pad on planta. Incisors pale yellow. 



Colour above greyish brown, varying to rufous-brown, but hoary 

 or much mixed with black from the dark underfur; the base of 

 the hairs ashy passing gradually into black, only the ends light 

 brown or grey, some of the longer hairs with black tips. Feet 

 dark brown. Lower parts white ; the fur dark grey at the base. 

 Tail brown, the hairs frequently black-tipped. Young animals 

 are black above, white below. 



Dimensions. Head and body of a large specimen 11 inches long, 

 tail without hair 8-25, with it 9 ; weight 9 oz. ; others measure 

 less. Extreme length of skull 1-9, zygomatic breadth 1-2. 



Distribution. The Himalayas from Nepal eastward, at an eleva- 

 tion of 3000 to 5000 feet. Found also in the bills south of Assam, 

 in Manipur, Yunnan, and Siam. Some skins in the British Museum 

 from Borneo are also referred to this species. 



235. Sciuropterus sagitta. 'fforsfaWs Flying-Squirrel. 



Sciurus sagitta, L. Syst. Nat. i, p. 88 (1766). 



Pteromys horsfieldii; Waterhouse, P. Z. S. 1837, p. 87; Anderson, 



An. Zool. lies. p. 299. 



Sciuropterus horsfieldii, Cantor, J. A. S. B. xv, p. $& . 

 Sciuroptems sagitta, Blyth, J. A. S. B. xxm, p. 731, xxiv, p. 187, 



xxvii, p. 281 ; Thomas, P. Z. S. 1886, p. 7/>. 



