11. MIOPITHECUS. 19 



Var. 3. Pennantii. Like var. 2, but feet and tail blacker ; no red on 

 the nape. 



Colobus Penuantii, iVaterhouse, P. Z. S. 1838, p. 57 ! Martin, Quad. i. 

 p. 501 ! 



Hub. West Africa : Gambia, Rendall. 



Thcso specics]wcrc described from flat furriers' skins ; but the largo 

 scries of skins a7id more perfect specimens show that they are only 

 varieties, in intensity of colour, of tho samo species — tho Bay 

 Monkey of Pennant. Tho thumb varies in dovelopmont ; sometimes 

 it has a claw. 



G. Colobus cristatus. 13. M. 



Fur short, yellow brown ; front part of body, shoulders, and 

 outside of the fore legs greyer ; throat, chest, belly, inside of limbs 

 and feet greyish white. Hair of crown short, reflexed, with two 

 streaks in front, and with a naiTOW, erect, longitudinal crest behind. 



Colobus cristatus, Gray, Ann. <§■ Mag. N. II. 18GG ! 



Hab. West Africa. 



See Colobus verm, Van Eeneden, Bull. Acad. Brux. v. p. 311, 

 1838. Head, neck, back, and base of the tail olive-brown, 

 hairs all finely ringed with black ; nape, and above and below 

 the callosities, dark brown ; tail long, grey, darker at the tip. 

 Body and limbs strong ; index finger six or eight lines shorter 

 than the middlo one. Hab. Africa. Mus. Paris. 



10. GUEREZA. 



Nostrils rather wide apart. Back with a lino of long pendulous 

 hair, forming a kind of mantlo. Thumb rudimentary. Tail-end 

 tufted. Hob. Africa. 



Guereza RuppeUii. The Guereza. B. M. 



Black ; end of tail, hair round the face, and of the mantlo white. 



Colobus guereza, Riippell, Fauna Alnjss. t. 1 I 

 llab. Abyssinia, Riippell ; West Africa, Thompson. 



Tribe IV. CERCOPITIIECINA. 



Head round or oblong. Nostrils on the slope of the face, separated 

 by a narrow septum. Hands and feet short, broad. Thumb large. 

 Stomach simple. Hab. Africa. 



a. Head rounded. Face short. Last lower grinder with three or four 



tubercles. 



11. MIOPITHECUS. 



Head globular. Whiskers straight, rather rigid, bent downwards. 

 Body and limbs slender. Hands long ; fingers united at the baso ; 



c2 



