304 Mr. O. Thomas on 
XLIT.— Four new Squirrels of the Genus Tamiops. 
By OLDFIELD THOMAS. 
(Published by permission of the Trustees of the British Museum.) 
AMONG some mammals collected in Yunnan by Mr. George 
Forrest, and presented to the British Museum by Col. Ste- 
phenson Clarke, ©.B., there occur examples of two species of 
Tamiops, both distinct from any as yet described. In working 
these out, two other species of the genus, one also from 
Yunnan and the other from 8.E. Siam, prove to need 
description. The first of Mr. Forrest’s two species is one of 
the handsomest of the genus, as it combines the greater size 
of 7’. swinhoet with the brightly contrasted coloration of some 
of the smaller species. “It may be called 
Tamiops clarket, sp. n. 
Size large, practically as in JT. swinhoei, therefore con- 
spicuously larger than in any of the other species, which are 
all more or less subequal in this respect. Coloration brightly 
contrasted, very different from the dull tones of swinhoet. 
Ground-colour of crown, nape, and fore-back pale buffy 
olivaceous, paler than Ridgway’s “ buffy olive.” Median 
dark stripe not commencing anterior to the lateral ones, all 
| three deep black, sharply defined. Inner light lines oliva- 
ceous buffy, paler than the fore-back. Outer light lines 
| quite white, broad and conspicuous, ending anteriorly level 
with the median dark stripe, not continuous with the sub- 
ocular light stripe. Outer black stripe fairly well developed. 
Under surface white, not yellowish—in fact, whiter than in 
any other species known to me; the hairs of the chin white 
to their roots, those of belly with slaty bases. Head with the 
usual markings strongly developed, the main light subocular 
stripe broad, white, and shown up by a darkening of the edge 
of the ground-colour above it. Hyelids white. Ears not 
heavily tufted, their edges white, their backs black, the hairs 
behind the tips with white ends. Hands and feet greyish 
buffy, becoming lighter terminally. Tail rather slender, the 
hairs about 13 mm. in length, each buffy at base, then black, 
broadly tipped with whitish. 
Skull nearly agreeing in size with that of 7. swinhoei. 
Dimensions of the type (measured on the remade skin) :— 
Head and body (c.) 154 mm. ; tail 112 ; hind foot 32. 
Skull: tip of nasal to front of interparietal 36; basilar 
