ellaart,
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 chestnut (_Kellaart_); 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.

SIZE.--Head and body, 7-3/4 inches; tail, 6-3/4 inches with hair.

NO. 307. PTEROMYS FIMBRIATUS.
_The Grey Flying Squirrel_
(_Sciuropterus of Jerdon, No. 164_).

HABITAT.--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. Barbei_ was probably the same as this; he had only
drawings and assertions to go upon. The species is extremely
doubtful.

NO. 308. PTEROMYS ALBONIGER.
_The Black and White Flying Squirrel_
(_Sciuropterus of Jerdon, No. 165_).

NATIVE NAMES.--_Khim_, Lepcha; _Piam-piyu_, Bhotia.

HABITAT.--Nepal, Sikim, Bhotan, Assam, Sylhet, Burmah, Wester