UAKARI MOXKEYS. 



179 



All the three species of uakari have lonp,- and silkj- hair, whicli is directeil 

 forwards ou the foreheail ; but tliey liave scarcely any distinct beard. The tail is 

 very shoi-t, never being more than aljout a tliirtl the length of the body, and some- 

 times being reduced to a mere stump. From the shortness of their tails they 

 received at tirst the very appropriate name Bmchyurus ; but since this term had 

 been previously applied to another group of animals it had to bo changed, and 

 Dr. Gray proposed the uncouth name Uacaria, as a Latinised form of their native 



tJ« ■- 



*^%g^fc^ 



THE BALD CVKAKI {Ij llat. size) 



title. The shelving forwards of the lower incisor teetli, which we have already 

 noticed as characteristic of the sakis, is .still more mai'ked in the uakaris. 



The Bald Uakaei ( UacaHa calva). 



Tlio species represented in our figure is one of two closely allied monkeys 

 fouml in the valley of the Upper Amazon, and readily distinguisheil by their 

 brilliant scarlet faces, and the liglit colour of tlie long hair of their bodies. The 

 leng-th of the liead and body of this .species is about 18 inches; the whole of 

 the body, from the neck to the tail, being clothed with long, straight, and shining 

 hair of a whitish colour. The head is nearly bald, having only a very thin crop of 

 short grey liairs. Beneath the chin and on the sides of the face there are busliy 

 whiskers of a sandy colour; while the tint of the eyes is reddish-yellow. Tlie 



