130 Mammals of Eastern Asia 
the tail 2 feet. This Monkey lives in cold parts of Szechwan and 
Kansu in pine woods between 7000 and 10,000 feet above sea- 
level. 
The Golden Monkey or Yunnan Snub-nosed Monkey, 
R. bieti, differs from R. roxellancz by having the back light 
brown instead of blackish and the rear of the haunches white 
(as in females of roxellana) . The head is crested, with blackish 
hairs projecting over the brows. The upper surface, limbs, 
hands, feet, and tail are black. Very young animals are white, 
with black on the head, back, and outer sides of limbs. This pat- 
tern is reminiscent of the juvenile pattern of Presbytis. The 
length of the head and body in males is 33 inches, of the tail 27 
to 29 inches. Females are a few inches smaller. 
The Golden Monkey is found in the region where Burma, 
Yunnan, and Hsi-Kiang meet. 
Brelich's Snub-nosed Monkey, R. brelichi, the largest of 
the Snub-nosed Monkeys, is slate-gray on the back, with a patch 
of white at the midline between the shoulders. The crown of the 
head and the cheeks are washed with yellowish and black. The 
ears are white. The underparts are gray. The limbs are gray, 
becoming blackish in front, yellowish behind. The hands and 
feet (missing in the type skin) are probably black. The tail, 
very long, is black with the tip white. A yellow patch is seen on 
each side of the base of the tail. The length of the head and body 
is about 29 inches, of the tail 39 inches. 
This Monkey is found south of the Yangtse River in the high 
country marking the boundary between Szechwan and Kwei- 
chow. 
The Tonkin Snub-nosed Monkey, Presbytiscus avunculus, 
is distinguished perhaps only subgenerically from other Snub- 
nosed Monkeys by the proportions of the hands and feet; the 
fingers and toes are unusually long, the palms and soles excep- 
tionally short. The back and limbs are black, the underside 
yellowish buff. The forehead and cheeks are creamy, sides of the 
