2io ALLEN'S NATURALIST'S LIBRARY. 



Cebiis olivaceiis, Wagner in Schreb.Saugeth., Suppl.,v., p. 87. pi. 8 



(1855)- 

 Cebus v ariegatus, Schl., Mus. Pays Bas, vii., p. 208 (1876). 



(Plate XIX.} 



Characters. Fur soft and stiff. Head large and round 

 covered with short recumbent hairs. Face naked, pale round 

 the prominent eyes ; muzzle sharp, and of the same colour as 

 that which surrounds the eyes; forehead, temples, throat, 

 chest, under surface of body, sides of jaws, and front of arms, 

 pale orange-yellow ; outer side of arms, pale orange, washed 

 with white ; fore-arms, rump, hind-limbs, and tail black ; 

 a mixture of black and brown, expanding irregularly into spots 

 on the yellow, covering the back, shoulders, and sides of body ; 

 a spot on the crown, black; a superciliary ridge forming a band of 

 whiskers extending down the cheeks, and meeting under the 

 chin, also black. Hands naked, violet, almost black. 



Varieties occur with the shoulders and loins pale yellow, 

 instead of mixed black and brown, and the outside of the thighs 

 and the base of the tail, reddish. In some specimens the pale 

 yellow of the back gives place to a white ground. 



Distribution Rio de Janeiro, Brazil ; Paraguay (?) ; Guiana, 



Habits. Little is known of the habits of this species ; but 

 F. Cuvier, who had one under his care in the " Menagerie 

 Royale," in Paris, remarks that it had the confiding disposition 

 characteristic of the Capuchins, although very timid. It 

 exhibited a great desire to be caressed, was very affectionate 

 and most intelligent. Its physiognomy, however, he says, 

 was involuntarily repellent, being one that, among ourselves, 

 would indicate a person steeped in ignorance and sensuality. 



