Descriptions of East Asiatic Mammals 131 
neck orange-buff, and the ears creamy white. A buffy white 
patch shows on the rump on either side of the tail ; light-colored 
marks appear on the backs of the thighs. The hands and feet are 
black, the inner sides of the limbs buffy to the wrists and ankles, 
and the long tail is mixed black and buff with the tip white or 
buffy white. 
The length of the head and body is 21 inches, of the tail 25 
inches, the hind foot 6% inches. 
Found in rocky forest near the Song-Koi River, Tonkin. 
THE MACAQUES (FAMILY CERCOPITHECID^E) 
This family of Monkeys goes in extensively for taillessness. 
In addition, large cheek pouches used for food storage are often 
developed, and the snout tends to become elongated. The 
Guenons and Baboons of Africa are members of the family. In 
Macaca, depending upon the species, the tail may be slightly or 
much abbreviated. The Stump-tailed Macaques, Lyssodes, and 
the Celebes "Ape," Cynopithecus, are members of the same 
family. 
There are four principal types of Macaques : the Long-tailed 
Macaque, the Rhesus Macaque, the Pig-tailed and Stump-tailed 
Macaques. The first three are commonly treated as subdivisions 
of the genus Macaca; the last, partly because of the extreme 
degree of atrophy of the tail and partly because of special char- 
acters of the male sexual organs, is segregated as a distinct 
genus, Lyssodes. 
The Asiatic Macaques, genus Macaca, have heavier, more 
compactly formed bodies than the slender-bodied Langurs. 
Males are much larger than females. Large horny pads are de- 
veloped where the animals sit down. The muzzle is protruding 
and dog-like, but the nose does not extend as far forward as 
the protrusible lips. The nostrils open obliquely outward and 
downward. The eyes, placed close together, look out from be- 
