62 CATALOGUE OF UNGULATES 



c'. Colour pale bay, lighter below 

 than above, 

 a". Forehead and tuft typically 

 black in middle and chest- 

 nut on sides C. harveyi. 



&"- Forehead mainly rufous, 



tuft mahogany C. ignifer. 



c''. Tuft wholly chestnut O.leopoldi. 



b". A black dorsal stripe. 



a^-. Middle line of face darker than 



flanks ; dorsal stripe from 



nape. 



a". Tail black and white ; back 



of hams rufous or white. 



n" Back of hams white; tail 



tufted C. leucogaster. 



b'*- Back of hams rufous ; 

 tail not tufted. 

 rt^". No white spot above 

 eye. 



a' ". Size larger C. dorsalis. 



6". Size smaller C. castaneus. 



b'"'. A white spot above 

 eye, continued as a 



line to nose C. Icucochilus. 



V. Face uniformly rufous yellow, 

 like flanks ; dorsal stripe 



from withers G. ogiibyi. 



v. Tail almost wholly black, 



as are hams C callipygus. 



v. Dai'ker markings bluish grey G. rufilatus. 



V. Generalcoloursmoky brown or blackish. 



a. Face tawny, tending in some cases 



to ruf otfs or black G. niger. 



b. Face black C. walheri. 



b". Inguinal glands wanting. 



a. Legs greyish brown, like body. 



a'. Bump not parti-coloured ; size larger G. maxwelli. 



h' . Rump parti- coloured ; size smaller C. melanorhmis. 



b. Legs largely rufous ; rump not parti-coloured, 

 o.^ Size larger ; skull longer. 



a'. Amount of rufous on legs and of whitish 



on under-parts medium C. montioola. 



v. More rufous on legs and body, and less 



white on under-parts G.nyasce. 



&. More white on under-parts than in 



monticola ; hoofs smaller G.hechi. 



V . Size smaller ; skull shorter ; otherwise 



much as in nyasce C. simpsoni. 



c. Legs brown ; size larger than in any other 



members of this subgroup C. lug ens. 



