22 SIMIADJE. 



side of the tail red bay ; face, temples, and limbs black ; cheeks 

 white. 



Cercopithecus erythrotis, Waterhousc, P. Z. S. 1838, p. 59 ! 

 Uab. Fernando Po. 



8. Cercopithecus Diana. The Diana. B. M. 



Chin with a narrow white beard ; fur black, minutely white- 

 grizzled ; the broad dorsal streak and rump baj'; frontal band, cheeks, 

 chin, throat, chest, front of shoulders, inside and back of thighs, 

 and streak across the haunches white ; face, tail, and outside of hind 

 legs and wrists black. 



Simia Diana, Linn. ; Audeb. t. G. Cercopithecus Diana, Erxl. C. 

 diadema. Kuhl. 



Var. ignita (adult). Back cdgo and innor side of thighs bright red 

 bay. B. M. 



Hab. West Africa. 



See C. roloway, Fischer, Syn. Mamm. p. 20. Above deep brown, 

 nearly black; head, sides, thighs, and legs "dull grey; 

 frontal band and chin-beard white ; throat, chest, belly, and 

 inside of thighs yellowish white. 



I 



9. Cercopithecus leucocampyx. TJie Diadem. B. M. 



Fur grey brown, minutely grey-grizzled ; underside of body black ; 

 crown, outside of limbs, and all but base of tail black ; front edge of 

 thighs and band across haunches whitish. 



Simia leucocampyx, F. Cuv. Mamm. Lith. t. Cercopithecus leu- 

 cocampyx, Martin. C. diadematus, Is. Geoff". Voy. Peking. C. * 

 dilophus, Tcmm. La Diana, F. Cuv. Mamm. Lith. t. 



Hal. Africa : White Nile. 



10. Cercopithecus mona. The Mone. B.M. 



Fur blackish olivo, minutely yellow-grizzled ; tail nnd outside of; 

 limbs black ; chest, belly, inside of limbs, and spot on rump whitish ; 

 streak from oyebrows to base of cars black. 



Adult. Darker, and moro brightly coloured; frontal band indistinct. 



B. M. 



Mone, Puffon, II. N. xiv. p. 258, t. 3G. Supp, vii. 1. 19. Cercopithecus 

 mona, Erxl, Simia mona, Schreb. S. monacha, Schreb. 



Var. Monella. Smaller, paler ; beneath whiter ; frontal band di- 

 stinct ; no black streak from eyebrows to ears. B. M. 



Hab. Senegal. \. 



See Cercopithecus Grayi, Fraser, Catalogue Knowsley Collection, 

 Aug. 1850. " Very closely allied to C. mona, and differs in 



