244 Mammals of Eastern Asia 
of Annam, Siam, and Yunnan, P. candiduhis of, upper Burma, 
P. taylori of Tenasserim, and P. clarkei of Yunnan. 
The color of Petanrista candiduhis is white, with brown hair 
bases, the edges of the flying membrane touched with red. The 
underparts are white. There is a gray patch in front of the ears, 
the tips of which are white, and another brown patch behind 
them. The terminal half of the back of the ear is white. The 
tail is gray with the tip black. The length of the head and body 
is 16 1 /! inches, tail 24 inches, foot 3% inches. 
The Annamese Giant Flying Squirrel, Petanrista anna- 
mensis, is reddish with the tips of the hairs white, the muzzle 
and cheeks grayish white, the underside pale rufous, and the 
chin, hands, and feet black. The back and base of the ears are 
black. The tail is colored like the body for three- fourths of its 
length, then blackish. The length of the head and body is 18 
inches. This Squirrel is a native of southern Annam and 
Cochin-China. A race, P. a, barroni from southeast Siam, 
differs by having a blackish ring around each eye, the throat 
white, and the tail black on its distal third only. 
Anderson's Giant Flying Squirrel, Petaurista yunnanensis, 
is chestnut with the hair tips white, especially on the hinder 
part of the back. The sides of the face are yellowish gray, the 
hands and feet black. The tail is chestnut, touched with black, its 
terminal part black. The underparts are yellowish white or 
chestnut-yellow. The length of the head and body is 24 inches, 
tail 24 inches. Found in Yunnan. 
Taylor's Giant Flying Squirrel, Petaurista taylori from 
Tenasserim, differs from P. candiduhis by reduction in length 
of the white hair tips, giving it a more rufous color; also by 
its black ear patches. From annamensis it is distinguished by 
its whitish tail. 
Clark's Giant Flying Squirrel, Petaurista clarkei from the 
Mekong Valley, Yunnan, is a gray-headed form with buff 
patches behind the ears. The body hairs are slaty black with 
