10 JMenioir upon the yipes uitli imperfect Hands. 



head. There is no difference in the shape and proportion:? 

 of the chamek, from those of the coaita. 



The following description agrees with the chamek : Atk- 

 LES PKNTADACTVLUS ; uteles n'lger, pahnis pjentadiictylls, 



2. The coaita. This is the onlv species of this genus that 

 has been established in a precise manner: BulTon and Dau- 

 benton were the iirst to publish a good description and a 

 drawing of it. Linnieus afterwards made his simia paniscus 

 of it. M. d'Az5^ara has latterly proposed to join it with the 

 orang, regarding it as the male of this jumping ape ; but we 

 are certain that these animals even belong to two diflerent 

 genera. The coaita had been seen long before by Barrere 

 and Edwards; since then M. Vosmaer has given iis a hew 

 drawing and a long description, because it is of this ape he 

 speaks when he describes it by the name of the devil of the 

 woods, or the American jumping and whistling ape. Audi- 

 bert, in his History of Apes, has also given a new drawing of 

 it. These two latter authors charge Buffon's plate with repre- 

 senting the coaita with an excessive slenderness : I think his 

 plate, however, as faithful as theirs. I have seen coaitas 

 which resemble it completely ; I have also seen others that 

 were squatter : of this number is the individual sent by 

 M. Leblond to the Society of Natural History, and which 

 at present forms part of the collection of M. Dufresne at 

 the head of the zoological cabinet in the Museum of Natural 

 History. 



I shall not repeat what I have said above of the characters 

 by which it differs from the chamek : I shall onlv add that 

 the coaita has a clear copper-coloured face. It is sufficiently 

 distinguished from the preceding species by the following 

 description : Ateles paniscus ; aieles niger, palmis tetra- 

 dactylis. 



3. The arachnoides. I give this name to the brown atele, 

 and I borrow it, in some measure, from Edwards, who re- 

 lates that it was exhibited some time ago in London by the 

 naitie of the spider monkey ; a description which principally 

 relates to the length and the slenderness of the limbs of this 

 atele. Edwards also saw a coaita about the same time ; so 

 that when he speaks of the colour of this ape he could not 



have 



