SQ UIRREL-MONKE VS. 
171 
cence, a similar playful smile, and a similar sudden change from joy to sorrow, or 
vice versa. When seized with fear its eyes are suddenly suffused with tears. The 
one in possession of Humboldt was extremely fond of spiders and insects; and 
when shown uncoloured figures of wasps, etc., in a work of Natural History, darted 
forward as if to seize the insect. It remained, however, perfectly indifferent to 
figures of heads and skeletons of Mammals. 
When several of these monkeys confined in one cage were exposed to a shower 
of rain, they twined their tails round their necks, and huddled close together in 
order to impart to one another mutual warmth. The Indians of the Orinoco in¬ 
formed Humboldt that they often met with groups of ten or twelve of these 
monkeys thus cowering together, whilst others remained outside the group utter¬ 
ing; mournful cries at not being allowed 
o o 
to enter. By shooting poisoned arrows 
at such groups the natives are accus¬ 
tomed to obtain a number of young 
squirrel monkeys at a time ; the young 
clinging to their dying mothers as they 
fall, and, unless wounded, not leaving 
them even when dead. All the move¬ 
ments of these little monkeys are rapid, 
light, and graceful. They have a habit 
of steadfastly watching the mouth of 
a person when speaking; and if allowed 
to sit on the shoulder of their master, 
they will frequently touch his lips, 
tongue, or teeth. Mr. Bates speaks of 
the squirrel-monkeys in Brazil as living in large flocks, and, when on the move, 
taking flying leaps from tree to tree. 
Short-Tailed This species (C. usta ) is distinguished from the preceding one 
Squirrel-Monkey. ma mly by its shorter tail and naked ear. It inhabits the same 
regions as the last. In some specimens the outer side of the fore-arm is of 
the same colour as the body, but in others it is shot with gold, as in the 
typical squirrel-monkey. A side view of the head is given in the accompanying 
woodcut. 
SIDE VIEW OF THE HEAD OF THE SHORT-TAILED SQUIRREL- 
MONKEY. (From Sclater, Proc. Zool. Soc. 1872.) 
Black-Tailed In Bolivia the squirrel - monkeys are represented by a well- 
Squirrei-Monkey. mar p ec { species, (C. entomophaga), differing from both the above by 
its black head, and by the hairs of the body being yellow with long black tips. 
These parti-coloured hairs cause the general hue of the fur to be golden-brown. 
The upper part of the body is, however, of the same black hue as the head; and 
this colour likewise prevails on the tail, which is of moderate length. The face, 
throat, and the inner surfaces of the thighs are, on the contrary, of a yellowish-grey 
colour. 
