THE GUEREZAS. 93 



V. THE BLACK GUEREZA. COLOBUS SATANAS. 



Colohus satanas, Waterhouse, P. Z. S., 1838, p. 58; Martin, 

 Mammif. Anim., p. 497 (1841); Gervais, H. N. Mamm., 

 p. 65 (1854); Sclater, P. Z. S., i860, p. 246; Reichenb., 

 Naturg. Affen, p. 88 (1862) ; Is. Geoffr., Diet. H. N., iv., 

 p. 208 (1849); Gray, P. Z. S., 1868, p. 181; id., Cat. 

 Monkeys Brit. Mus., p. 17 (1870); Schleg, Mus. Pays- 

 Bas, vii., p. 27 (1876); Matschie, S.B. Ges. Natur. Fr. 

 Berlin (1892), p. 226. 



Senuiopithecin anthracinus^ Leconte, Proc. Acad. Nat. Sci. 

 Philad. 1857, p. 10. 



Gue7-eza satanas, Truess. Consp. Mamm., p. 10 (1879). 



Stachycolobtis safmias^ Rochebr. Faun. Seneg. Suppl. Mamm., 

 p. 114, pi. vii. (1887). 



Characters. — Fur very long, coarse ; face naked, black ; ears 

 rounded, black ; superciliary and frontal hairs very long ; hairs 

 of the cheeks long, very coarse, and directed backwards ; fur 

 entirely and uniformly black on the body and tail; hairs on tail 

 short; tip not tufted. Length of body, 40 inches; of tail, $()% 

 inches. 



Distribution. — West Africa. Forests of Senegambia, Sierra 

 Leone, Gaboon, and the Congo. This is one of the commonest 

 species in West Africa. 



VI. THE URSINE GUEREZA. COLOBUS URSINUS. 



^Full-bottom Mo7ikey, Pennant, Quad., i., p. 197, pi. 24 



(1781). 

 ? Colohus poly conus^ Illig., Prodr., p. 69 (181 1). 



