2j6 Mammals of Eastern Asia 
tion of which exists in Borneo. Those of the Asiatic mainland 
are found in the Malayan region and Assam, through Siam and 
Indo-China to Kwangtung in southern China. The color is light 
dull brown above, whitish beneath. The tail, furnished with a 
distinct tuft of hairs at the tip, is considerably longer than the 
head and body. The thumbs of both hands and feet have nails 
instead of claws, and the feet are broad and well adapted for 
climbing and grasping. 
The only continental species, C. gliroides, has the length of 
the head and body 3% inches, tail 4 inches, hind foot % to % 
inch. Some of the Bornean species are much larger, others much 
smaller. Gairdner gives the dimensions of one from lower 
Burma as 3% inches, 5 inches, and % inch. 
The Marmoset Mice, genus Hapalomys, are fitted to an 
eminent degree for climbing. They resemble the Pencil-tailed 
Tree Mice in having grasping hind feet with opposable, thumb- 
like great toes and the very long tail furnished with a tuft 
of hairs at the tip. But they are somewhat larger and their 
noses are longer. The cheek teeth present a strikingly regular 
pattern, the little tubercles arrayed in successive sets of three, 
almost as regularly as the pattern on a rubber coin mat. These 
Mice seem to be extremely scarce. Only one species is known : 
H. longicaudatus from Tenasserim, which extends eastward 
into Indo-China where it is represented in Annam and Laos by 
the race H. I. delacoari, and on the Island of Hainan by the 
race H. I. marmosa. The dense soft fur is colored brownish gray 
above, pure white beneath. Young animals have more gray, less 
brown. The length of head and body varies from 5V2 to 6 1 / 4 
inches, of the tail 6 to 8*4 inches, hind foot % to 1% inches. 
The Monkey-handed Tree Mouse, Pithecheir, is a Malayan 
genus containing the single species P. melcmurus. It occurs in 
Selangor, the lower part of the Malay Peninsula, Sumatra, and 
Java. The somewhat smaller mainland form has been distin- 
guished as a separate race, P. m. parvus. 
