Descriptions of East Asiatic Mammals 135 
The Pig-tailed Macaque, native of Sumatra and ranging into 
India and China, is represented on the Malay Peninsula as far 
north as Tenasserim by the form M. adusta, which has the back 
and shoulders blackish red, the tail dark, the limbs drabby 
gray. 
The length of the head and body in the mainland race, adusta, 
is from 20 to 21 inches, of the tail from 7 to 9 inches, of the 
foot from 6 to 7 inches. 
These animals live gregariously in dense lowland forests. 
They feed on fruits, seeds, and insects. 
The Stump-tailed Macaques, genus Lyssodes which in- 
cludes the Japanese Macaque, are set off from the Long-tailed 
and Short- tailed Macaques of Asia by having virtually no exter- 
nal tail. The type species is L. speciosa. 
The Brown Stump-tailed Macaque, Lyssodes speciosa, is 
dark brown, the back blackish brown, the limbs, hands, and feet 
reddish brown, and the underparts yellowish white. The skin 
of the face is red. The length of the head and body is about 30 
inches; the tail is virtually obsolete. Lyssodes speciosa occurs 
in northern Assam, northern Burma, Yunnan, Tonkin, Annam, 
Cochin-China (Elliot), and Borneo. 
From time to time stories emerge from Burma of large 
"apes" being seen in the forest. True Apes are not known from 
nearer than Sumatra, and the long-armed Gibbons would be 
recognized as such. It seems likely that the "apes" seen were 
merely large specimens of Stump-tailed Macaques. 
In Cambodia and Siam the representative of this group, 
Lyssodes harmandi, has the back, shoulders, arms to the elbows, 
and sides black. The head, rump, limbs, hands, and feet are 
"reddish chocolate," the underparts "reddish brown." In Tenas- 
serim a strongly rufescent form, L. rufescens, measures about 
18 inches. The tail is 1 inch long. In Tibet and Szechwan the 
local form is Lyssodes s. thibetanus, and in Kwangtung and 
Fukien L. s. mellL 
