286 MAMMALIA OF INDIA. 
of the upper parts unannulated and of a deep rich chestnut, which em- — 
braces the upper surface of the base of the tail, and is concolorous with 
the chestnut of the under parts. This, however, is evidently not a per- 
sistent form, because I have seen a specimen from the same island in 
which the red portion of the upper parts is grizzled and much of the same 
tint as Malayan individuals, except in the mesial line of the neck and 
back, where the colour is rich red-brown extending along the dorsum of 
the tail for about three inches. 
Miiller and Schlegel mention a variety that I have not seen, and of 
which they state that the red colour of the under parts extends to the 
heel, the forefoot and the toes, while the colour of the upper parts passes 
into a uniform lustrous black. ‘They also remark, however, that the back 
not unfrequently assumes a pale yellowish brown tint” (‘ Anat. and Zool. 
Res. p.1242): 
Horsfield remarks :—“‘ This species is nearly allied to the S. exythreus 
of Pallas, but it varies in the depth of the colours both above and under- 
neath.” 
‘Tn the skull the orbit is rather large, and the muzzle is so contracted 
at its base that the extremity is but little narrower.”—Aderson. 
No. 287. ScIURUS SLADENI. 
Sladen’s Squirrel. 
Hasitat.—Upper Burmah. 
Description.—After Dr. Anderson (‘ Proc. Zool. Soc.’ 1871, p. 139) 
who first obtained and named this species: “ grizzled, rufous olive above, 
the annulations fine, and the fur of moderate length ; the forehead, face, 
chin, throat, belly, inside of limbs, front of thighs, lower half of fore- 
limbs, and the hind-feet rich chestnut red; tail rather bushy, as long as 
the body without the neck and head, concolorous with the upper surface 
of the body, but slightly more rufous, with a bright chestnut red tip.” 
SizE.—Head and body, 10} inches; tail, including rufous tip, 
8 inches. 
This handsome squirrel is figured in the volume of plates belonging 
to Dr. Anderson’s work on the Zoology of the Yunnan Expedition. 
Speaking of the skull he says: “The skull of S. S/adeni has a rather 
short muzzle, with considerable breadth across its base superiorly, and 
it is a shorter and broader skull than the skulls of squirrels referred to 
S. Blanfordii. Compared with the skull of the red-headed specimen of 
S. erythreus from Bhutan, there is a decided resemblance between the 
two, the chief distinction being the less breadth of the base of the 
muzzle of the latter, but the teeth of this specimen show it to be young, 
while the teeth of S. S/adeni are much worn by use.” —‘ A, and Z. Res.’ 
Pp. 243. 
