Humboldt was much impressed with the resemblance of some of these Monkeys in the face to man. One of them, the Capuchin of the Orinoco, is certainly strangely human in its appearance. The eyes have, according to Broderip, a mingled expression of melancholy and fierceness. There is a long, thick beard, and as this conceals the retreating chin, the face and forehead are much upon a line. Strong, active, and fierce, he is tamed with the greatest difficulty, and when angered he raises himself on his hinder extremities, grinds his teeth in his wrath, and leaps around his antagonist with threatening gestures. “If any malicious person wishes to see this Homunculus,” writes that entertaining author, “in a most devouring rage, let him wet the Capuchin’s beard, and he will find that such an act is an unforgivable sin.” It is so anxious not to wet this fine ornament to its face, that instead of putting the mouth to the stream when it desires to drink, it lifts the water in the hollow of its hand, inclines its head on its shoulder, and, carrying the draught to its mouth, drinks slowly, and with deliberation. This Saki is called _Pithecia cheiropotes_ (the Hand-drinking Monkey). Its length, including the bushy tail, is about two feet nine inches. It is of a brownish-red colour, and the hair of the forehead is directed forwards. The body hair is long, and the beard, which arises below the ears, is brown, inclining to black, and it covers the upper part of the breast. The back is red, the eyes are sunken, and the nails are, with the exception of those of the thumbs, more like claws. They are very solitary, and often are found without their mates. This Saki has, in common with many others, certain structural peculiarities which group them all in the genus _Pithecia_. For instance, the incisor or front teeth are rather prominent obliquely, and the lower are long. The canine teeth are long, thick, and cone-shaped. The crushing, or molar teeth, are small. The tail is very hairy, and the ears are large. The ribs are broader relatively in this genus than in any other of the Monkeys. As has already been noticed, the tail differs in length in different members or species of this genus, and consequently it has been divided into a long-tailed and a short-tailed set. The Monkey just mentioned belongs to the long-tailed series, as does also the following:-- THE COUXIO.[101] This Saki has a beard under its chin, and the fur is generally of a brown-black in the male, and brown in the female. It has a fine fiery tail, and a very human aspect. The name is by no means satisfactory, especially as by a curious mistake the young ones have been called “Israelites.” THE PARAUACÚ--THE HAIRY SAKI.[102]