242 Mammals of Eastern Asia 
dorsal mark, but the head and chest white. The hands and feet 
are also red, only slightly darker than the body. The white of 
the face reaches the bases of the ears and that of the throat 
extends upward in front of each shoulder. The underparts, light 
reddish, are touched with white along the middle. The length 
of the head and body is 23 inches, tail 17 inches, hind foot 
3% inches. 
The typical race, native of Szechwan, is represented else- 
where by P. a. castaneus of the upper Yangtse Valley, P. a. 
leucocephalus of Tibet, P. a. ochraspis of Yunnan, P. a. lena of 
Formosa. These races have blackish hands and feet; castaneus 
virtually lacks the white tips of the red ventral hairs ; ochraspis 
has a light patch at the base of the tail, the underparts strongly 
whitish, and the pure white of the throat extending onto the 
chest. 
The Formosan White-headed Flying Squirrel, Petaurista 
a. lena, is red above, yellowish white beneath. The head and 
hands are white and the feet are touched with white. The tail is 
mixed red and black, its tip black or black and white. The length 
of the head and body is 17 inches, tail 18 inches, hind foot 3 
inches. 
The Spotted Flying Squirrels, Petaurista punctatus, occur 
as several races in the lower Malay Peninsula and in Burma, 
Yunnan, and Borneo. 
The Malay Spotted Flying Squirrel, P. p. punctatus, from 
Malacca, was briefly made known as "bright bay; back orna- 
mented with white spots." The two Squirrels next mentioned 
may be races of punctatus. 
The Yunnan Spotted Flying Squirrel, Petaurista marica, 
is olive-brown, becoming more reddish on the membranes, and 
darkening on the crown of the head to black. The thirty-odd 
white spots vary from 14 to % inch across. The undersurface 
is bright orange-red, chin dark brown, the hands dark brown, 
feet rufous, tail blackish red with the tip blacker. The length 
