1A¢ 
applied) or renewing their pelage, perfect specimens are rarely obtain- 
ed, and this individual variation has been the cause of much un- 
certainty and some confusion, 
At present, however, three races of brown Ratwfa can be distin- 
guished in the Peninsula: 
(1) Ratufa pyrsonota, Miller. 
General colour above uniform ochraceous and brown, markedly 
annulated but becoming on fore legs, sides and thighs scarcely speckled 
tawny-ochraceous, under parts and inner surfaces of legs clear 
ochraceous. Top of muzzle dark brown, sides of muzzle whitish, 
cheeks and chin grizzled brown or whitish. Tail a variable brown, the 
bases of the hairs whitish, the latter colour conspicuous on the under 
surface where the short hairs clothing the vertebrae are brown. Feet 
dark brown. 
Occurs in the northern half of the Peninsula. Waterstradt (fide 
Robinson) has obtained specimens in North Pahang, and it is known in 
Perak as far south as Kuala Kangsar. 
(2) Ratufa affinis (Raffies). 
General colour above a variable café-au-lait brown, the hairs dark 
tipped and very faintly annulated but becoming on neck, fore legs, 
sides and thighs tawny-ochraceous; under parts and inner surfaces 
of legs clear white or whitish-buff. Muzzle, cheeks and chin as in 
R. pyrsonota. Feet whitish or light buff like the under parts. 
Occurs in Southern Johore and Singapore Island. 
(3) Ratufa aureiventer (Geoftr. ). 
Nearly agrees with R. affinis above but below resembles R. pyr- 
sonota. The back and tail are very variable, ranging from isabelline- 
brown to pale cream buff. As Cantor has correctly noted, the feet may 
be dark or light-—in fact, they range from dark brown to ochraceous- 
buff, those of much bleached and abraded individuals often showing 
patches of both colours. 
Occurs in the area between the districts occupied by the two pre- 
ceding animals. 
All these races agree in the possession of a notable pale patch on 
the outer side of the thigh, and in an annulated upper surface, though 
when the pelage is worn this often disappears entirely. 
Mr. R. C. Wroughton, in a recent paper dealing with the Giant- 
Squirrels (Jour. Bombay Nat. Hist. Soc., Feb., 1910), follows Mr. 
Bonhote in stating that R. awreiventer is a yellow-footed form and con- 
fines it to Malacca, while the range of R. pyrsonota is given as from 
Trang to Selangor. But, as I have pointed out above, the former is 
both dark and light footed, and the gradation is so complete that the 
colour of the feet cannot be used as a differentiating character between 
these races, and Wl. prysonota which, far from extending to Selangor, 
apparently barely enters the Federated Malay States, where R. awrei- 
venter, as Mr. Bonhote correctly noted, is the prevailing form. 
