1894,] DR. A. B. METER Olf AIS AFRICAN MONKEY. 83 



3. Remarks on an African Monkey, Cercopithecus wolfi. 

 By A. B. Meyer. 



[Eeceived November 21, 1893.] 



(Plate Vn.) 



In 'Notes from the Leydeu Museum' (vol. xiii. pp. 63-64, 

 December 1890) I gave a preliminary description of this new 

 Monkey from Inner Africa (though the exact locality is not known), 

 after a living specimen in the Dresden Zoological G-ardeu. At 

 the same time I expressed my intention of giving fuller particulars 

 after the auimal's death, since it is impossible to be perfect in 

 details when noting down the characters of a living Monkey 

 constantly leaping from one end ol: its cage to the other. The 

 animal ha^^ng died in October 1891, I now offer the subjoined 

 description, illustrated by a tigure, of this remarkably fine species, 

 and add some notes on its skeleton. In the valuable and complete 

 list of the genus Gercopiiliecm recently published by Dr. P. L. Sclater 

 (P. Z, S. 1893, pp. 243 & 441), the 31 known species are divided 

 into 6 sections, and if one does not wish to create a new section 

 for C. tvolfi, it could be placed in Section C (Erythronoti : above 

 rufous, beneath white), or in Section E (Auriculati : ears with long 

 tufts), though it does not exactly agree with either. 



The following is a description of the specimen : — Greneral colour 

 of the upper surface dark slate-grey, passing into blue-grey on the 

 sides, each hair with two or three pale rings and tipped with black ; 

 the hair-rings from the crown downwards form a dorsal stripe 

 4 cm. broad, tapering off to a point towards the tail, ohve-yellowish 

 from the crown to the middle of the back, most vivid on the crown, 

 brown-yellow towards the tail ; the hair-rings on the sides are 

 pearl-grey, on the basal half of tail above ash-grey, the tips of 

 the hairs black, on basal half of taU below whitish ; the lengthened 

 hairs of the sides of the body orange-yellow ; nose and bare skin 

 of face blackish grey ; upper lip as far as nose' and bare parts of 

 under-Hp flesh-colour ; iris red-brown ; the diadem-like stripe 

 across forehead, extending more narrowly to the ears, yellowish 

 white, each hair black at the tip ; eyebrows black ; the hairs of 

 the ears bright red-brown ; temples and space in front of ears 

 black, the long hairs of the whiskers washed with the same colour ; 

 the hair -rings of the whiskers, which tend to a lemon-yellow colour, 

 are very broad in front, so that these hairs appear almost uniform 

 yellow ; chin, sides of neck, inner sides of arms, breast, belly, and 

 inner sides of legs white, the hairs of the belly with faint orange- 

 yeUow tips ; shoulders and upper arms black, with pearl-grey 

 hair-rings ; outer side of lower arms uniform glossy deep black, 

 between this and the white inner side a narrow ochre-coloured 

 stripe running down to the underside of the hands ; hairs on hands 

 and feet above black, becoming thinner on the fingers ; skin of 

 hands and feet blackish grey ; outer side of legs bright red-brown, 



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