GELADA, the Abyssinian name of a large species of baboon, differing from the members of the genus Papio (see Baboon) by the nostrils being situated some distance above the extremity of the muzzle, and hence made the type of a separate genus, under the name of Theropithecus gelada.
Babuin, which is itself derived from Babon, the Egyptian deity to whom it was sacred), properly the designation of the long-muzzled, medium-tailed Egyptian monkey, scientifically known as Papio anubis; in a wider sense applied to all the members of the genus Papio (formerly known as Cynocephalus) now confined to Africa and Arabia, although in past times extending into India.
Together with the drill (q.v.), the mandrill, Papio maimon, constitutes the subgenus Maimon, which is exclusively West African in distribution, and characterized, among other peculiarities, by the extreme shortness of the tail, and the great development of the longitudinal bony swellings, covered during life with naked skin, on the sides of the muzzle.
CHACMA, the Hottentot name of the Cape baboon, Papio porcarius, a species inhabiting the mountains of South Africa as far north as the Zambezi.