Semnopithecus anthracinus, Leconte, Proc. Acad. Nat. Sci. Philad. 1857, p. 10.
Guereza satanas, Truess. Consp. Mamm., p. 10 (1879).
Stachycolobus satanas, Rochebr. Faun. Sénég. Suppl. Mamm., p. 114, pl. 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, 59½ 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 Monkey, Pennant, Quad., i., p. 197, pl. 24 (1781).
? Colobus polycomus, Illig., Prodr., p. 69 (1811).
Colobus ursinus, Ogilby, P. Z. S., 1835, p. 98; Less. Spec. Mamm., p. 70 (1840); Martin, Mammif. Anim., p. 495 (1841); Fraser, Zool. Typ., pl. i. (1849); Is. Geoffr., Dict. H. N., iv., p. 208 (1849); Sclater, P. Z. S., 1860, p. 245; Reichenb. Naturg. Affen, p. 86 (1862); Schl., Mus. Pays-Bas, vii., p. 24 (1876).
Colobus personatus, Temm., Mus. Lugd., fide Reichenb. t.c., p. 88 (1862).