CHARACTERS.--MALE.--Body massive, thick-set; face broad; cheekbones protuberant; the nostrils placed at the extremity of the truncated snout; nose as long as, but not exceeding, the upper lip. Hair of head and neck longer and thicker than on the rest of the body, but not forming a mantle-like mane as in _C. hamadryas_; the hair of the legs and outer portion of the thighs and of the toes long; whiskers not intruding far on the face, and directed backwards, less copious than in the Arabian Baboon; ears naked, pointed; soles and palms also naked; callosities large, hips naked. Tail nearly the length of the body, not tufted at the termination. In colour somewhat similar to _C. sphinx_, and closely allied to _C. babuin_. Face livid flesh-colour, lighter on the ridge of {269}the nose. General colour of fur on back, sides of body, and outer side of limbs olive-green; on the under side of the body and inner side of the limbs light yellowish-green; breast, throat, and under part of chin silvery-grey; whiskers silvery-grey; ears, palms of hands, and soles of feet dark brown; callosities flesh-coloured; the surrounding naked parts purple-brown. DISTRIBUTION.--Abyssinia. HABITS.--Little or nothing is known of this species. It was obtained in Abyssinia by Dr. Rüppell. A specimen was exhibited alive, however, in the Zoological Gardens of London in 1843. VIII. THE EAST AFRICAN BABOON. PAPIO IBEANUS. _Papio thoth ibeanus_, Oldfield Thomas, Ann. and Mag. Nat. Hist., xi., p. 46 (1893). DISTRIBUTION.--Lamu, East Africa. Mr. Oldfield Thomas has described this sub-species, which has remarkably coarse and shaggy fur all over the body, longer than in the typical form, and of a blackish and dull tawny white, without any of its brighter yellow; the hairs on the crown of the head broadly ringed with black; the chin and throat whitish; hairs of the chest ringed with black and white; the belly black and dull fawn; the inner side of the fore-limbs like the chest, and of the hind-limbs clearer and less ringed fawn-colour. Length of the body, 33½ inches; of the tail 24 inches. IX. THE GUINEA BABOON. PAPIO SPHINX. _Le papion_, F. Cuvier, Mamm., vol. i., livr. 6 ([male]); livr. 7 ([female]), Hist. Nat. (1819). _Papio sphinx_, Geoffr., Ann. Mus., xix., p. 103 (1812); Schl., Mus. Pays Bas, vii., p. 127 (1876). {270}_Cynocephalus papio_, Desmar., Mamm., p. 69 (1820). _Cynocephalus choras_, Ogilby, P. Z. S., 1843, p. 12. _Papio rubescens_, Temm., Esquisses Zool., p. 39 (1853); Schl., t. c. p. 28. _Cynocephalus sphinx_, Gray, Cat. Monkeys, Brit. Mus., p. 35 (1870).