582 
MAMMALIA. 
more gentleness in their character. Like them, they are very 
easily tamed when young, but they much more rarely become 
vicious when they grow old. They then rather show symptoms of 
dulness, and this state increases with years, until it terminates in 
a melancholy resignation, a kind of mental depression, that only 
disappears with the extinction of life. They are very well en- 
dowed so far as intelligence is concerned. 
The tribe of Semnopitheci comprises three genera — Nasica, 
Semnopithecus proper, and Colobus. 
Fig. 259.— White-nosed Monkeys Fig. 260.— Grivet ( Cercopithecus 
(Cercopithecus petaunsta). engythithia). 
Genus Nasica . — The Nasica, or Proboscis Monkeys (Fig. 261), 
are so named because of their nose, which surpasses in length 
that of Mankind. This is a peculiarity which distinguishes 
them from all other known Monkeys. They are also recognised 
by their hair, which is more developed beneath the chin and 
around the neck than on the other parts of the body. These 
animals are the largest of the Semnopitheci, measuring nearly 
five feet when standing upright. They are also the most 
ferocious and least susceptible of training. They inhabit the 
island of Borneo, and are found in numerous troops among the 
