52 CEBIDiE. 



brown, washed with golden ; the outside of limbs golden fulvous ; 

 hair soft. 



? C. unicolor, Spix, Bras. t. 4 ? Cebus chrysopes, F. Cuv. Mamm. 

 Lith. t. C. chiysopiis, Fischer. 



Hob. BrazU? Columbia. 



15. Cebus subcristatus. The Bonnet-Sapajoii. B. M. 



Fur blackish bro^\^l ; outside of legs yellowish-washed ; sides 

 of face pale asliy ; front of the shoulders and of the iipper arms yel- 

 lowish ; toes and fingers elongate, very slender. Hair of the crown 

 elongate, divided by a central line, and diverging to the ej^ebrows, 

 forming an erect transverse crest behind them. 

 Cebus subcristatus, Gray, P. Z. S. 1865, fig. ! 



Var. Frontal crest not so distinct ; toes shorter. 



Hah. South America. 



VI. Hairs of the crown elongate, erect, diverging in all directions, fwming a 

 kind of caj). 



16. Cebus capillatus. T7ie Capped Cebus. B.M, 



The hairs of the crown elongate, diverging in all directions ; fur 

 rather elongate, brown, slightly washed with yellow, esjjeciaUy on 

 the thighs ; sides of the forehead greyer ; sides of neck, outsides of 

 the shoulders, and arms fulvous ; crown and nape blackish. 

 Cebus capillatus, Gray, P. Z. S. 1865, fig. 1 



Hub. Brazil. 



Tribe IV. CALLITRICHINA. 



Grinders |^, bluntly tubercular. Canines moderate. Cutting-teeth 

 erect, in a regular series with the canines. Head rounded. Lower 

 jaw dilated behind. Eyes moderate, diurnal. Nostrils far apart, 

 lateral. Tail very long, lax, straight. 

 CalUtrichina, Gray, P. Z. S. 1849. 



6. CHRYSOTHRIX. 



Fur soft, close, erect. Tail cylindrical, elongate, covered with 

 short hair ; end rather tufted, only slightly prehensile. Canines mo- 

 derate. Eyes large. Ears large. Septum of nose very broad. 

 Lower jaw narrow behind. Skull much elongated, very large be- 

 hind. Septum of the orbit membranaceous. Spinous processes of the 

 lumbar vertebrae trapezoid. 



Chrysotlirix, Kauj) ; Wagner, 1842 ; Saimiris, Is. Geoff. 184 ? Sa- 

 guimis and Pithecosciurus, Lesson. Callitlirix, sp., Geoff. Saimiri, 

 Cttvier ; Poiichet. 



