228 Mammals of Eastern Asia 
becoming grayer and lighter on the flanks and sides of face. Its 
underparts are buffy white with a trace of reddish on the hind 
limbs. The tail above is like the back, below reddish. The length 
of head and body is 5 1 /! inches, of the tail 3% inches, hind foot 
1^4 inches. The dimensions of the smaller but otherwise very 
similar C. I. alacris are: head and body 4 1 / 4 inches, tail 3% 
inches, foot l 1 /^ inches. 
The Striped-bellied Tree Squirrels, Callosciurus quinques- 
triatus, form a natural group in which the ventral surface has 
three longitudinal dark stripes, one in the center, separated from 
each other by white stripes. They are found in northern Burma 
and Yunnan. There is one species with three indistinct races. 
The typical form is olive-gray, washed with red along the back, 
the underparts striped from the chest backward as stated above, 
the tail colored like the back with the tip black, the toes blackish. 
The length of the head and body is 9^ inches, tail 7 inches, hind 
foot almost 2 inches. 
The forms C. q. imarius from north Burma and C. q. Syl- 
vester from western Yunnan have been distinguished. The typi- 
cal form came from the Kakhyen Hills, the Burma- Yunnan 
border. 
The Hoary-bellied Squirrels, Callosciurus (Tomeutes) 
lokroides, in the opinion of Ellerman, is a group of four or five 
small-sized Squirrels found only in Burma, Assam, Bengal, and 
Sikkim. The color of Callosciurus lokroides is brown, with the 
hairs orange-tipped; the underparts reddish gray. The tail is 
rather narrow. The hips are grizzled gray and have a prominent 
whitish hip patch. There are only 6 nipples in the female. The 
length of the head and body is about 8% inches, tail 8 inches, 
foot 1% inches. 
The Hoary-bellied Squirrels are represented in the upper 
Chindwin Valley by C. I. owensi. A distinct species found only 
in the Chindwin area is C. blythi, with four races. Upper Assam 
is the home of C. stevensi. Burma contains two species, C. 
