A New Squirrel from North Sarawak. 
By C. Boden Kloss, f.z.s. 
Amongst the mammals recently obtained by Major J. C. 
Moulton in North Sarawak, mostly of fairly well-known species — 
though some, such as the series of Sciurus prevostii baluensis and 
S. p. suffusus, are of considerable interest from the point of distri- 
bution — are two examples of a squirrel which, when seen in the 
forest, must bear a close superficial resemblance to the more rusty- 
bellied individuals of the very variable local form of ■ Sciurus vit- 
tatus, i.e. 8. v. dulitensis. They are, however, considerably smaller 
than this animal and rather more brightly coloured and have, more- 
over, large buff patches behind the ears. 
On the other hand they are much larger and more richly 
coloured beneath than Glyphotes simus from Kinabalu 1 (still known 
only by the type specimen) which, besides lac-king the buff patches, 
has markedly distinct cranial and dental characters. As they ap- 
pear to occur side by side with S. v. dulitensis I feel compelled to 
regard them as a distinct species — a thing I am loth to do when- 
ever I can avoid it. 
Sciurus adamsi sp. nov. 
Superficially resembling S. vittatus dulitensis Bonhote, in 
colour but the grizzled areas rather brighter and less olivaceous, 
the yellow element being oohraceous instead of buff. Underparts 
of body 7 and limbs orange-cinnamon to cinnamon-rufous (Ridgway), 
but the chin and throat somewhat greyish. Tail as in S. v. dulit- 
ensis but the grizzle more tawny and the extremity without any 
rufous suffusion. Round the eyes a tawny ring, the ears with fronts 
and edges distinctly tawny and behind the ears a large clearly-de- 
fined patch of pure buff, partly on the metectote and partly on the 
side of the neck. lateral stripes of buff and black (the latter 
slightly grizzled with rufous) as in S. v. dulitensis. 
Size much smaller than S. v. dulitensis. 
Skull and teeth as is S. v. dulitensis but smaller. 
Collector’s external measurements of the type taken in the 
flesh: — head and body 176; tail (imperfect) 72; hindfoot, s.u., 48; 
ear 15 mm. 
Skull measurements 2 * : — greatest length, 42.5, 41.0; eondylo- 
basilar length, 36.0, 34.8; basilar length, 34.4, 32.0; palatilar 
length, 17.7, 16.3; diastema, 9.8, 9.0; upper molar row (alveoli), 
1 Thomas, Ann. and Mag. Nat. Hist. (7) II, 1898, p. 251. 
2 In each instance the first measurement is that of the type. 
Jour. Straits Branch R. A. Soc., No. 83, 1921. 
