124 
b+. Rump particoloured. 
a°. Belly usually highter than back; female horned.—Came- 
roons; Zanzibar. . . . 383. C.melanorheus. 
65. Belly not or little lighter nan back ; female hornless.— 
Uganda eae » . . . 984. C. equatorialis. 
6°. Legs rufous ; rump not marccslourede —S.E. Africa. 
30. C. monticola. 
B. Horns, when present, slanting upwards at a sharp angle above the nasal 
profile ; females normally hornless. Ears long, pointed, their length 
equal to or exceeding the distance from the eye to the rhinarium. 
General colour yellow or greyish; no darker markings on the body, 
but a brown nasal patch present. (TRuE DUIKERS.) 
a. Size smaller: hind foot less than 9 in.; basal length of skull less than 5:5. 
a’. Colour bright yellow.—W. Africa. . . . . 36. C. coronatus. 
b'. Colour grizzled greyish brown.—Abyssinia . . 37. C. abyssinicus. 
b. Size larger: hind foot more than 9°5 in.; basal length of skull more 
than 6°0.—Southern Africa . . . . . . . 388. C. grimmi*. 
* An animal to which the following names refer has been described as a member of this 
genus :— 
Antilope (Cephalophus) quadriscopa, H. Sm. Griff. An. K. iv. p. 261, fig. (¢), v. p. 345 (1827). 
Quadriscopa smithii, Fitz. SB. Wien, lix. pt. 1, p. 167 (1869). 
Hab. Senegal. 
The figure, however, shows a species more like a Gazelle than a Duiker, although some of its 
characters seem rather Cephalophine. Whatever it may have been it has never been rediscovered, 
nor is its description sufficient for us to assign it to its proper place in the group. 
