but broadly tipped
with black, while the remaining portion of the tail is rich glossy
black; the sides of the face, below the eye and ear, are
yellowish-grey, mixed with chestnut, and the chin is dusky; the paws
are rich black, also the margins of the limbs; the under surface is
clad with a yellowish-white, rather woolly fur, which in some tends
to a chestnut tint in the middle line, and to a darker tint of the
same colour at the margin of the parachute.

"The basal portion of the fur of the upper parts is a dark
greyish-brown, the hairs at their base being wavy; then follows a
palish chestnut band, succeeded by a dark maroon chestnut, which
either may or may not have a pure white sub-apical band, the tips
of the hairs being glossy deep maroon chestnut, in some verging on
black.

"The ears are large and rounded, and very sparsely covered with black
hairs externally, with chestnut-coloured hairs on the anterior, and
black on the posterior half of the dorsal surface.

"The hairs on the outer side of the tarsus form a rather long and
dense brush; the tail is moderately bushy."--'Anat. and Zool. Res.,'
p. 282.

SIZE.--Dr. Anderson only got skins of this beautiful squirrel, so
accurate dimensions cannot be given, but the largest skin measured
from muzzle to root of tail 24 inches, the tail being the same.

NO. 300. PTEROMYS MELANOPTERUS.
_The Black-flanked Flying Squirrel_.

HABITAT.--Thibet.

DESCRIPTION.--The back and top of the head are greyish-yellowish,
the hairs being leaden grey at the base, passing into yellow, the
sub-terminal part being brown, with a minute dark point; the upper
surface of the parachute is almost wholly black, with a greyish-white
border; under surface yellow; the belly greyish-ashy; feet black;
limbs and tail concolorous with the body, the latter very bushy.

SIZE.--Head and body, about 19-1/4 inches; tail, 17-1/4 inches.

I have included this species, although it does not belong to India
proper; still it would be well if travellers and sportsmen exploring
our Thibetan frontiers would keep a look-out for this animal. At
present all we know of it is from Professor Milne-Edwards's
description of animals collected by the Abbe David, to whom we are
also indebted for the next species.

NO. 301. PTEROMYS ALBORUFUS.
_The Red and White Flying Squirrel_.

HABITAT.--Thibet; district of Moupin.

DESCRIPTION.--I have but a bare note of this species taken long ago
from Milne-Edwards's wor