THE CAIARÁRA.[89]

This (according to this author and admirable observer) is the light-brown Caiarára, and it is pretty generally distributed over the forests of the level country. He saw it frequently on the borders of the Upper Amazon, where it was always a treat to watch a flock leaping amongst the trees, for it is the most wonderful performer in this line of the whole tribe. The troops consist of thirty or more individuals, which travel in single file. When the foremost of the flock reaches the outermost branch of an unusually lofty tree, he springs forth into the air without a moment’s hesitation, and alights on the dome of yielding foliage belonging to the neighbouring tree—may be, fifty feet beneath—all the rest following the example. They grasp in falling with hands and tail, right themselves in a moment, and then away they go along branch and bough to the next tree. It owes its native name to the disproportionate size of the head to the body. It is very often kept as a pet in the houses of the natives, and Mr. Bates kept one for a year, and he thus writes about it:—“It accompanied me in my voyages, and became very familiar, coming to me always on wet nights to share my blanket.” It is a most restless creature, but is not playful like most of the American Monkeys, the restlessness of its disposition seeming to arise from great nervous irritability and discontent. Its actions are those of a wayward child. It does not seem to be happy even when it has enough of its favourite food—bananas; but will leave its own meal to snatch the morsels out of the hands of its companions. It differs in these morbid traits from its nearest kindred, for another Cebus found in the same parts of the forest—the Prego Monkey—is a much quieter and better-tempered animal. It is full of tricks, but they are generally of a playful character.

HOODED SPIDER MONKEY.

The Caiarára keeps the house in a perpetual uproar where it is kept. When alarmed or hungry, or excited by envy, it screams piteously, and it is always making some noise or other, often screwing up its mouth, and uttering a succession of loud notes resembling a whistle. Mr. Bates’s little pet used to run after him, supporting himself for some distance on his hind legs, without, however, having been taught to do so. The end of this friendship came at last, and in a tragical manner. “He offended me greatly one day by killing, in one of his jealous fits, another and much choicer pet—the Nocturnal Owl-like Monkey (Nyctipithecus trivirgatus). Some one had given this a fruit which the other coveted, so the two got to quarreling. The Nyctipithecus fought only with its paws, clawing out, and hissing like a Cat. The other soon obtained the mastery, and before I could interfere, finished its rival by cracking its skull with his teeth. I then got rid of him.”

BROWN CAPUCHIN. (From the Zoological Gardens.)

Broderip writes about one as follows:—“Humboldt saw at Maypures one of these Monkeys riding a Pig. He used to bide his time, and every morning caught one, which he compelled to perform the part of the horse. Seated on pig-back did he majestically ride about the whole day, clinging to his bristly steed as firmly as ever the Old Man of the Sea clung to Sindbad, not even giving poor piggy a respite at meal times, but continually bestriding him all the time he was feeding in the savannah that surrounded the Indian huts. A missionary had another of these riders, but the missionary’s Monkey laid a strong hold on a comfortable Cat which had been brought up with him, carried him well, and bore all his tricks with patience and good humour.”

The skull is long, and uniformly round in these animals, and the face is not very prominent. There are two nasal bones, and the inter-maxillary bone is distinct; moreover, the chin is rounded and receding. With all its powers of teasing, fun, and its intelligence, one would anticipate that the brain would be far superior in its form to the Spider and other Monkeys with prehensile tails; and this is the case, for the convolutions on the outside are almost equal in their number and relative size to those of the Monkeys of the Old World.