The general colour of this Monkey is a reddish-brown, which becomes decidedly red on the top of the head. There is a white band between the eyes, which is continued to each side of the back of the neck. A second kind has grey slaty-brown tints, without the white spot. One thing strikes the observer at once, and that is the very affected way in which the Monkey sits, with its eyelids half closed; and as the upper ones are dead-white, they look almost like doll’s eyelids, and as if they did not belong to it. They are extremely restless, and are fond of placing themselves in curious attitudes, and so full of antics are they that it has been erroneously imagined that they really have more joints and muscles than the most agile of their allies. They are fond of carrying their tails reversed, so as to be on a line parallel with the top of the back, and their common expression of disgust is to show their teeth by raising the upper lip. It is always droll, frolicsome, and good-natured. Sir William Jardine mentions a female in Mr. Wombwell’s Menagerie that was most lively, and Broderip says:--“She performed many of the attitudes of the most experienced harlequins, and was remarkably cleanly and careful not to soil her person. When feeding, she seldom put her head to the food or dish, but lifted and conveyed it to her mouth. She was very fond of bread, milk, and vegetables, and of carrots especially.” He gives a figure of her--no easy task, for she was never at rest for one moment, and her celerity was increased when she perceived she was noticed. [Illustration: MANGABEY.] The Mangabeys are all African, and are peculiarised by having a fifth cusp, or point, to the last crushing tooth on each side of the lower jaw, as in Semnopithecus. Now, they have no other resemblance to Semnopithecus, and all their structural peculiarities are those of the Guenons. They have, however, the web between the fingers carried as far forward as the first joint, and the hair comes close to the knuckles and the beginning of the short thumb. In the foot the toe-thumb is large, and, as usual, widely separate from the toes, the second and third of which are united by a web, which reaches almost to the last joint near the tips, and the third, fourth, and fifth are united by smaller webs, Evidently the peculiar crushing teeth of the Mangabey are a relic of an ancestral character, and we must look in some lower tribes for a corresponding arrangement, and in this we are assisted by the nature of the face, for the muzzle is rather projecting. In fact, they somewhat, resemble the Macaques, or Inui, which will be considered next. [Illustration: FOOT AND HAND OF THE MANGABEY.]