248 MR. p. L. scLATER OS THS [Mar, 14, 



Cercopitliecus griseo-viridis, Desra. Maram. p. 61 (1820) ; Martin, 

 M. An. p. olS ; Blauford, Zool. Abvss. Exp. p. 224 ; Scl. List 

 Vert. (1883) p. 6. 



Grivet {Cere, griseus), F. Cuv. Mamm. i. pi. 22 (1819). 



Hah. East Africa : Abyssinia {R'ujipell and Blanford) ; Sennaar 

 (Clot- Bey). 



There is a great difference of opinion as to what the Simla sahcea 

 of Linnaeus refers to. It is therefore better to reject tlie name 

 altogether, and to call this species griseo-viridh. The " Grivet " is 

 also pretty common in captivity, but not so frequently imported as 

 the Yervet and Green Monkey. Its long white whiskers and the 

 blue scrotum of the male distinguish it from C. callltrichus, its 

 West- African representative. 



12. Cercopitiiecus CALLirRicnus, 



Cercopithecus callitrichus, Geoffr. Cat. p. 23 ; Schl, Mus. P.-B. 

 Simke, p. 73 : Scl. List Vert. (1883) p. 7. 



Callitriche (Cere, sahoius), E. Cuv. Mamm. i. pi. 21. 



Cercopithecus saJjceus, Wagn. Siiug. v. p. 40 ; Martin, M. An. 

 p. 519. 



C/dorocebiis sahceus, Gray, Cat. Monk. p. 25. 



Jlab. Senegambia (Mus. Lugd.) ; Liberia (scarce, Bv.ttilcofer). 



The Green Monkey is, I tliiuk, the commonest of this section in 

 captivity next, perhaps, to the Vervet. We have generally a good 

 supply of specimens of both these species, which do well in our 

 Gardens. The yellow-tinged and shorter whiskers and the green 

 scrotum of the male distinguish the Green Monkey from the 

 Grivet. 



The Green Monkey has been introduced in some of the West- 

 Indian islands, and has become an indigenous species there. See 

 my notes on this subject, P. Z. S. 1866, p. 79. It is said also to 

 have been introduced into St. lago — one of the Cape Verd group 

 (Schl. Mus. P.-B. /Simice, p. 74). 



13. Cercopithecus lalaxdii. 



Cercopnthecus lalandii, Geoffr. Diet. univ. d'Hist. nat. iii. p. 305 ; 

 id. Cat. Prim. p. 21 ; Wagner, Saug. v. p. 39 ; Scl. List Vert. (18b3) 

 p. 6. 



Cercopithecus pjygerythrus, Martin, M. An. p. 521 ; Schl. Mus. 

 P.-B. Simire., p. 76. 



Hab. South Africa, Cape Colony. 



" The Vervet is closely allied to the Malbrouck and Grivet, so 

 that a Httle care and attention are necessary to enable the observer 

 to discriminate between them. It differs, however, from both in 

 having the fur long, and rather coarse, and of a much greyer tint, 

 the wash of olive being less decided, in the tail being black, nearly 

 throughout its whole length ; and in the superciliary bristles 

 being very conspicuous. Erom the Malbrouck it may be distin- 

 guished by the muzzle being less thick and heavy, and from the 



