There is something very un-monkey-like in the shape of this Abyssinian animal, for it has long white hair, resembling the edge of a cloak, along its sides, and a long tail with a tuft to it. The natives chase it, and are fond of having some of their long hairy skins to cover their shields with. Assembling in little troops, the Guereza keeps well up in the tallest trees, in the neighbourhood of running water. They feed on fruit, grain, and insects, and are inoffensive and wild. The fur is certainly very prettily arranged, and the black and white truly oppose each other well. The colour of the fur of the head and of the greater part of the body is black, but the forehead is white, so are the sides of the face, the throat, and the sides of the neck. There is a mantle-like mop of long hairs starting from the region near the ribs, and the lower part of the back, and covering the flanks in a train behind. It is of a white colour, and exists in both sexes; nevertheless, it is longest in the females and adults. The tail is white, hairy, and tufted. * * * * * Another of the Colobi has a very dignified look given to it by a large mass of hair which covers its neck and shoulders like a little cloak. It has slim legs and a long tail. For some reason or other the natives in the neighbourhood of Sierra Leone call it the King of the Monkeys. The face and limbs and body are black, and a great mass of hair starting from the forehead and brushed back from the sides of the face and chin, the neck and shoulders all round, falls down on all sides. This is of a dusky yellow colour. The tail is white. It is called the Cloaked or Many-haired Colobos (_Colobos polycomos_). As if to contrast kinds of the genus Colobos, which have great general resemblances, Nature has provided some with red-coloured fur, instead of black and white; for instance, the Bay Monkey (_Colobos ferrugineus_); and finally, one very interesting species which, like all those mentioned, except the Guereza, comes from West Africa; it has a short fur of an olive colour, with a grey tint beneath and on the limbs. It has no long hairs on the body, and its tail is long and thin. This _Colobos verus_ has not a vestige of a thumb. There are eleven species of this genus. Besides the fossil Semnopithecus found in the Himalayas others have been discovered in Greece, Würtemberg, and at Montpellier, and in strata of Mid-Tertiary and of Pliocene Age. CHAPTER VI. THE DOG-SHAPED MONKEYS (_continued_). THE GUENONS.[39]