_.

HABITAT.--Lukong, on the Pankong lake.

DESCRIPTION.--General colour above smoky or wood brown; the head,
shoulders and rump rather paler and more rufous; lower parts whitish,
with the dark basal portion of the hair showing through; fur very
soft, moderately long; ears large, round, clothed rather thinly
inside near the margin with whitish-brown hairs, and outside with
much longer hairs of the same colour; whiskers fine and long, the
upper dark brown, the lower white; feet whitish. (_See_ Blanford's
'Sc. Res. Second Yarkand Mission,' p. 75, plate vi. fig. 2.)

SIZE.--About 8 inches.

NO. 422. LAGOMYS MACROTIS.

This seems to be a doubtful species; it may probably prove to be the
same as the last, the skulls being similar. Mr. Blanford remarks:
"I am strongly disposed to suspect, indeed, that _L. auritus_ is the
summer _L. macrotis_, the winter garb of the same species; but there
are one or two differences which require explanation. The feet appear
larger in _L. macrotis_, and the pads of the toes are black, whilst
in _L. auritus_ they are pale coloured. In the former the long hair
of the forehead is lead black at the base, in the latter, pale grey;
the feet and lower parts generally are white in _L. macrotis_, buffy
white in _L. auritus_, but this may be seasonable."

NO. 423. LAGOMYS GRISEUS.
_The Grey Pika_.

HABITAT.--Yarkand, Kuenlun range, south of Sunju pass.

DESCRIPTION.--General colour dull grey (almost Chinchilla colour),
with a slight rufescent tinge on the face and back; lower parts white;
fur very soft, about 0.9 inch long in the middle of the back; glossy
leaden black at the base and for about two-thirds of its length, very
pale ashy grey towards the end; the extreme tips of many hairs dark
brown, and on the back the tips of all the hairs are brownish; the
sides are almost pure light ashy; rump still paler; feet white; hair
on the face long, light brown on the forehead, greyer on the nose,
pure grey on the sides of the head. A few of the upper whiskers black,
the rest white; ears large round with rather thin white hairs inside,
very short hairs close to the margin, white outside, black inside,
outer surface covered with whitish hairs, which become long near the
base of the ear. (_See_ Blanford's 'Scientific Results, Second
Yarkand Mission,' p. 77, and plate vii. fig. 1.)

SIZE.-About 7 inches.

NO. 424. LAGOMYS RUFESCENS.
_The Red Pika_.

HABITAT.--Afghanistan, Persia.

DESCRIPT