1892.] 



OF THE GKNUS CEPHALOLOPHUS. 



415 



a'. General colour blackish, with a yellowish lumbar 



stripe. W. Africa 1. C. sylvicultor, 



. General colour of body grey, of head and neck [Afz. 



black. W. Afr 2. C.jentinki, 



h. Size medium or small : hind foot less than 260 mm. ; [Thos. 



basal length of skuU less than 220. 

 a'. General ground-colour fulvous, rufous or chestnut. 

 a-. Back not transversely striped. No heel-tufts. 

 a^. Colour quite uniform, no mesial dark mark- 

 ings on face or elsewhere. 

 «•*. Size larger ; hind foot (? hoof included) 



241 mm. KiUma-iijaro 3. C.spadix,TlYMe. 



¥. Size smaller ; hind foot without hoof 193 



mm. E. &S.E. Afr 4t. C. naialcnsis, 



h^. Mesial dark markings present either on face [A. Sra. 



or back or both. All W. Afr. 

 a*. Darker markings shining black or brown. 



a\ Back uniform rufous, no dorsal stripe... 5. C. nigrifrons, 

 b'\ Back with a black dorsal stripe continued [Gr. 



on the tail, 

 fl!^. Tail black and white ; back of hams 

 red or white. 

 a'. Centre line of face decidedly darker 

 than flanks. Dorsal line from nape. 

 a"*. Sternal region and back of hams 



white. Tail tufted at dp Q. C. leiicogaster, 



If. Sternal region and back of hams [Gr. 



as dark as or darker than the 

 body. Tail evenly haired, not 



tufted 1. C.dorsalis,Q!T. 



h'. Face uniformly rufous yellow, like 



the flanks. Dorsal line from [Waterh. 



withers S. C. ogilbyi, 



¥■. Tail nearly wholly black ; back of [Pet. 



hams also black . 0. C. callipygiis, 



bK Darker markings bluish grey 10. C. rufilatm,Qr. 



b^. Back transversely banded. Heels with tufts. 



W. Afr \ U.C.dori<B,Og. 



h'. General colour smoky brown or blackish. 



(1^. Size larger; hind foot 210 mm. Face more 



rufous than body. W. Afr 12. C. niger, Gr. 



b-. Size smaller; hind foot less than 190 mm. Face 

 like back. 

 a^. Legs greyish brown, like body, 

 a^ Rump not particoloured. Sierra Leone ... 13. C. maxwelli, 

 6'. Rump particoloured. Cameroons to Zan- [H. Sm. 



zibar 14. C.mclanorheus, 



h^. Legs rufous; rump not particoloured. S.E. [Gr. 



Africa. 15. C. monticola, ' 



B. Horns, when present, slanting upwards at a sharp angle [Thunb. 



above the nasal profile ; female normally hornless. 

 Ears long, pointed, their length equal to or exceeding 

 the distance from eye to rhinarium. General colour 

 yellow or greyish ; no darker markings on body, but 

 a brown nasal patch present. 

 a. Size smaller : hind foot less than 230 mm. ; basal 



length of skull than 140. [Qr. 



a'. Colour bright yellow. W. Afr Hi. C. mrumtus, 



&'. Colour gi-izzled greyish brown. Abyssinia 17. C. abi/ssinicus, 



h. Size larger: hind foot more than 240 mm.; basal ' [Thos. 



length of skull than 145. Southern Afr 18. C. grimmii, L. 



29* 



