308 
ANIMALS OF EGA. 
Chap. Y. 
covered with hair, and of little or no service in climbing, 
a few species nearly related to our Uakari having it much 
shorter than usual. All the Cebidse, both long-tailed 
and short-tailed, are equally dwellers in trees. The 
scarlet-faced monkey lives in forests, which are inun- 
dated during great part of the year, and is never known 
to descend to the ground ; the shortness of its tail is 
therefore no sign of terrestrial habits, as it is in the 
Macaques and Baboons of the Old World. It differs a 
little from the typical Cebidge in its teeth, the incisors 
being oblique and, in the upper jaw, converging, so as 
to leave a gap between the outermost and the canine 
teeth. Like all the rest of its . family, it differs from 
the monkeys of the old world, and from man, in having 
an additional grinding-tooth (premolar) in each side of 
both jaws, making the complete set thirty-six instead of 
thirty-two in number. 
The white Uakari (Brachyurus calvus), seems to be 
found in no other part of America than the district just 
mentioned, namely, the banks of the Japura, near its 
principal mouth ; and even there it is confined, as far as 
I could learn, to the western side of the river. It lives 
in small troops amongst the crowns of the lofty trees, 
living on fruits of various kinds. Hunters say it is 
pretty nimble in its motions, but is not much given 
to leaping, preferring to run up and down the larger 
boughs in travelling from tree to tree. The mother, as 
in other species of the monkey order, carries her young 
on her back. Individuals are obtained alive by shooting 
them with the blow-pipe and arrows tipped with diluted 
Urari poison. They run a considerable distance after being 
