142 COLOBUS 
CoLOBUS SHARPEI Thomas. 
Colobus angolensis Sclat., Proc. Zool. Soc. Lond., 1892, p. 97. 
(nec Sclat., 1860). 
Colobus palliatus (nec Peters), Pousarg., Ann. Scien. Nat., 1895, 
p. 269, fig. 5; Thos., Proc. Zool. Soc. Lond., 1896, p. 788; 
1897, p. 927. 
Colobus sharpest Thos., Proc. Zool. Soc. Lond., 1902, p. 118; 
Lydekk., Proc. Zool. Soc. Lond., 1905, pp. 326, 327, fig. 50. 
Colobus cottoni Lydekk., Ann. Mag. Nat. Hist., XVI, 7th Ser., 
1906, p. 432. 
SHARPE’S GUEREZA. 
Type locality. Fort Hill, Nyassa-Tanganyika Plateau. Type in 
British Museum. 
Geogr. Distr. Nyassaland to Tanganyika Plateau. Ituri forest, 
East Congo. 
Genl. Char. Similar to C. paLtLiaTus in color, but cranial differ- 
ences considerable. Skull is larger in all dimensions; frontal region 
more convex; nasals longer, broader, and more acute posteriorly; 
zygomatic arches greatly divergent posteriorly ; front edge of coronoid 
process angularly convex. 
Color. Practically exactly like C. paLLiaTus, but of a date size. 
Frontal band, sides of head, neck, throat to chest, and long hairs of 
mantle white, all the rest of the pelage black; tail black for two thirds 
its length grading into white on the remaining third. Flat skin. Ex 
type British Museum. 
Measurements. Total length, about 1,440; tail, 760; foot, 190. 
Ex stuffed specimen not the type. Skull: total length, 114; occipito- 
nasal length, 95; Hensel, 87; zygomatic width, 84; intertemporal width, 
43; palatal length, 49; median length of nasals, 16; length of upper 
molar series, 32; length of mandible, 90; length of lower molar series, 
39. Ex type British Museum. 
I place as a synonym of this species C. cottoni Lydekker, the type 
of which is in the British Museum. There is no difference perceptible 
in the color of the pelage, C. cottoni is a male, and C. SHARPEI a 
female, so the skulls may not be compared, as such differences as are 
observable may be only those caused by sex. The right that C. cottoni 
may have to a distinctive rank can only be establishel by cranial char- 
acters proved to exist. As this cannot at present be shown and there 
are no differences in the color of the skins, the animals are considered 
as representing one and the same species. 
