THE KAHAU OR PROBOSCIS MONKEY.

Nasalis larvatus.-GEOFFROY..

PLATE VI.

Proboscis Monkey, Pennant's Quadrupeds, append. p. 322. Le Kahau, Audibert, Histoire Naturelle des Singes.-Nasalis larvatus, Geoffroy Saint Hilaire, Annales du Museum, vol. xix. p. 91.-Guenon nasique, Desmaret's Mammalogie, p. 55.

THIS singular monkey is at once distinguished by the extraordinary elongation of the nose, which is nearly four inches in length, and gives a grotesque appearance to the animal, at the same time far from pleasing. In other respects it presents a form of considerable interest to the zoologist; the body is unshapely, protruding in front like the Orangs, and wants the lightness possessed by so many of the Guenons. The arms are of very considerable proportional length, like the Gibbons; and, like the howling monkeys, it possesses a large guttural sack-while the presence of a lengthened tail, and of naked callosities, present altogether a very curious combination.

The kahau is about three feet in height when placed in an erect position, and, with the exception

of the tail and lower part of the back, is of a reddishbrown colour. The female is said, by Audibert, to want the light-coloured markings on the back, and to be rather less in size; the nose and face are of a blackish-brown colour, the nostrils are placed at the extremity, and they can be blown up or swelled

00

Nose seen from beneath, from Audibert.

to a considerable size.

Messrs Vigors and Horsfield have given the profile of another monkey, brought from the Island of Borneo, in which the nose is scarcely one-third of the length, and is somewhat turned up. They suspect that this is the young of the proboscis monkey, which, if correct, will show that the elongation is much dependent upon the age

*