MAN AND APES. 59 



Brazil. Their tail is naked beneath towards 

 its tip, as in the genus Ateles. 



The second sub-family of American mon- 

 keys, the Pitheciince or Sakis, is interesting 

 from peculiarities in the hairy clothing. The 

 tail may be long or short, but is never pre- 

 hensile. 



There are two genera — the long-tailed 

 species, forming the genus Pitkecia ; while 

 the short-tailed species are grouped under the 

 generic designation Brachyurus. 



One of the species, the Couxio (Fig. 28), is 

 furnished with a magnificent beard ; and from 

 its blackness, it has received the specific ap- 

 pellation P. Satanas. 



Another species, the Yarke, has the head, in 

 the female sex, adorned with elongated hair. 



The Brachyuri are the only American apes 

 with short tails (Fig. 29), and they are the least 

 arboreal, frequenting bushes rather than trees. 

 They are very timid creatures, and gentle and 

 rather slow in their movements. It is but very 

 rarely that any of the Pitheciince have been 



