Descriptions of East Asiatic Mammals 217 
R. m. felli of the lower Chindwin River; R. m. stigmosa of 
northern Siam ; and R. m. hainana of the Island of Hainan. 
Ratufa macrura stigmosa of Siam is black or reddish black 
all over the upperparts and tail. The underparts are yellowish 
brown, with the bases of the hairs gray, the yellowish color ex- 
tending along the insides of the limbs to the wrists and ankles, 
and forward on the neck, beneath the ears and eyes to the 
cheeks, sides of nose, throat, and chin. The underside of the tail 
is black. Ratufa m. gigantea of Assam has substantially the 
same color scheme, but the color of the underparts is often 
whiter. Ratufa m. hainana of Hainan Island, China, on the con- 
trary, is colored beneath deep orange-brown. 
The length of head and body in R. m. stigmosa is 16% inches, 
of the tail 18% inches, of the hind foot 3% inches. Miller gives 
the dimensions of gigantea as : head and body 16% inches, tail 
24 inches, hind foot with claws 3% inches. 
The Pallid Giant Squirrels, Ratufa bicolor, also large mem- 
bers of the genus, are divided into a large number of races, most 
of them confined to the Sunda Islands and others. The ears are 
untufted and the cheeks unstriped. The general color is ash- 
brown and there are no marks on the thighs. According to Eller- 
man, this Squirrel can be separated into three full species on the 
mainland: bicolor proper, phceopepla (gray-coated forms), and 
melanopepla (black-coated forms). True R. bicolor and its races 
seem confined to the islands but its continental representative 
melanopepla appears as several mainland races : true melanopepla 
in southern Siam, peninsulce and phceopepla in Tenasserim and 
peninsular Siam, marana at Mount Popa, Burma, and smithi in 
south Annam. 
The back in R. bicolor is pale ashy brown, slightly darker 
along the center, and becoming dark brown on the shoulders, 
head, and limbs. The underparts are brownish white (brown 
hair bases showing through white tips), the inner sides of the 
limbs entirely white. The hands and feet are blackish brown. 
