142 CO LOB US 



CoLOBUs SHAKPEi Thomas. 



Colobus angolensis Sclat., Proc. Zool. Soc. Lond., 1892, p. 97. 



(nee Sclat, 1860). 

 Colobus palliatus (nee Peters), Pousarg., Ann. Seien. Nat., 1895, 



p. 269, fig. 5; Thos., Proc. Zool. Soe. Lond., 1896, p. 788; 



1897, p. 927. 

 Colobus sharpei Thos., Proc. Zool. Soc. Lond., 1902, p. 118; 



Lydekk., Proc. Zool. Soe. 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 ^luseum. 



Geogr. Dlstr. Nyassaland to Tanganyika Plateau. Ituri forest, 

 Ea.st Congo. 



Genl. Char. Similar to C. palli.xtus 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. palli.a.tus, but of a larger 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; oecipito- 

 nasal length, 95 ; Hensel, 87 ; zygomatic width, 84 ; intertemporal width, 

 43; palatal length, 49; median length of nasals, 16; length of upper 

 molar series, i2 ; length of mandible, 90 ; length of lower molar series, 

 39. Ex type British Museum. 



I place as a synonjon 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. 



