PTEROMYS. 3 301 
who named it Sciuropterus Layardii ; rufescent fulvous or dark brownish 
isabelline hue, as Jerdon describes it ; the fur dusky blackish colour for 
three-fourths of its length ; the tips coarser and coloured rufous chest- 
nut (Xe/aart) ; hairs fuscous with a fulvous tip ( Jerdon) ; two-thirds of 
the base dusky ashy, the remainder reddish-brown with a black tip 
(Anderson) ; the ears are moderate in size, posteriorly ovate with a long 
pencil of blackish hairs at the base of the posterior margin and at the 
external surface of the upper angle ; cheek bristles well developed ; the 
cheeks white, washed with yellowish, as also before the ears; the margin 
round the eyes blackish; the parachute is dark brown above washed 
with pale brown, and the edge is pale yellow; lower parts yellowish- 
white ; the tail is very bushy, and not distichous in the adult, though 
partially so in the young; it is sometimes yellowish-brown, sometimes 
dusky brown, especially in the latter half, the under surface being pale 
brown at the base, passing into blackish-brown. Kellaart says of the 
Ceylon specimens: “ Tail flat and broad, of a lighter chestnut above, 
washed with black, and under surface of a deep black, except at tip,” but 
apparently he had only one specimen to go upon, and therefore we 
cannot accept his observations as conclusive. 
S1zE.—Head and body, 72 inches ; tail, 63 inches with hair. 
No. 307. PTEROMYS FIMBRIATUS. 
Sciuropterus of Jerdon, No. 164. 
The Grey Flying Squirrel, 
Hapirat.—North-west Himalayas. 
DEscrIPTION.—Fur long, soft greyish, with sometimes a tinge of 
brown ; the hairs are grey at the base, then brown with a black tip; 
face white ; orbits dark brown; chin and under-parts white ; the tail is 
broad, bushy, and rather tapering, more or less fulvous washed with 
black, black towards the tip; the feet are broad, and according to Dr. 
Gray the outer edges of the hind feet have a broad fringe of hair, whence 
probably its specific name; but Dr. Anderson is of opinion that this 
character is unreliable. 
Size.—Head and body, 12 inches; tail, 11 inches. 
Blyth’s S. Barbet was probably the same as this; he had only 
drawings and assertions to go upon. ‘The species is extremely 
doubtful. 
No. 308. PTEROMYS ALBONIGER. 
Sciuropterus of Jerdon, No. 165. 
The Black and White Flying Squirrel. 
Native Names.—X/im, Lepcha ; Piam-piyu, Bhotia. 
Hasitat.—Nepal, Sikim, Bhotan, Assam, Sylhet, Burmah, Western 
Yunnan and Cambodia. 
