720 MR. R. I. POCOCK — A REVISION OF [Juue 18, 



of the face between the corner of the movith and the eye. Hairs 

 on the ear pale red. Fore leg blackish, only sparsely and faintly 

 speckled. Hind leg also blacker than in C. petcmrista. Tail red 

 above and below in the distal three-fourths of its length, whitish- 

 grey below at the base, and for a couple of inches above at the 

 base the same colour as the back. 



Log. The Congo ; Oubangui and Adima {Pousargues) to Angola ; 

 Encoge, south of Bemba* ; Quimpampala {Santos). 



I have seen several young examples referable to this species, 

 but for none of them was a definite locality known. All wei-e 

 imported by dealers and deposited in the Gardens by the Hon. 

 Walter Rothschild. They exhibited considerable variability in 

 the width of the black stripe on the cheek, and also in the stripe 

 crossing the brow and temple. In typical C. melanogenys the whole 

 area of the cheek between the eye and the corner of the mouth is 

 black, and the brow and temple-bands are well defined. In the 

 Zoological Society's Collection there is a skin, dated 14.8.1900 to 

 21.7.1901, which very nearly agrees with this; but in a small 

 example now living in the Gardens the black area below the eye is 

 interrupted by a conspicuous patch of yellow-speckled hair, reducing 

 the extent of the black area, and the temple-band is hardly 

 developed. In another that died about eighteen months ago the 

 black band was still further reduced both in length and width, the 

 temporal and brow bands were practically absent, and the nose- 

 spot was tinted with yellow. These facts indicate the probability 

 of the existence of two or more unnamed subspecies ; and since 

 the specimens are intermediate between typical examples of C. as- 

 canius and of C. schmidti, they have influenced me in concluding 

 that the latter form is an East African subspecies of the former. 

 Were it not for the presence of red instead of white hairs upon 

 the ears, I should have been in doubt to which of the two forms 

 to refer the above-mentioned specimens. 



Subsp. SCHMIDTI Matschie. (Plate XL. fig. 4.) 

 Cercopithecus schmidti Matschie, Zool. Anz. 1892, p. 161 ; 

 P. L. Sclater, P. Z. S. 1893, p. 245, pi. xvi. ; Johnston, Uganda, 

 i. pp. 363, 364, and p. 421, coloured plate facing p. 364. 



Differs from the typical form of C. ascanius in having a fringe 

 of long white hair on the ears, and in that the hairs on the cheek 

 adjacent to the face beneath the black temporal stripe and back- 

 wards beneath the ear are greyish yellow and wealdy annulated 

 apically ; they are directed downwards and forwards oi- backwards 

 (in dried skins), and foi-m a thick crest with the hairs of the area 

 below, which grow obliquely upwards and backwards from the 

 corner of the mouth and, being thickly annulated with black, form 

 a dark stripe extending beneath the ear to the neck. None of the 

 examples that I have examined have, on the cheek, the distinct 

 radiating whorl of yellowish hair noticeable in typical C. ascanius. 



* Monteiro, P. Z. S. 1860, p. 112. 



