260 CLASS MAMMALIA. 



recurrence of them in their own country must render them 

 known in ours. 



The Entellus, however, deserves a very particular atten- 

 tion. It is not only a species distinct from others by the 

 mere colouring of certain parts, or the dimensions of cer- 

 tain organs ; but it appears to present a type altogether new. 

 Its general physiognomy, theproportions of its limbs, and its 

 intellectual characters are singular. Though it has all the 

 generic characters of the Guenons, it has little or nothing 

 of the exterior of these Monkeys. Instead of those vigor- 

 ous limbs, equally indicative of agility and force, that 

 petulance of movements and vivacity of look, the Entellus 

 has limbs disproportionately long and remarkably slender, 

 slow motions, and an expression of countenance, the apathy 

 of which nothing can alter. Had it not been for the long 

 tail it might have been taken for a species of Gibbon, and 

 in fact, it was at first described as such, its relations with 

 the other Quadrumana being established, rather according 

 to its moral than physical characteristics. It seems to be 

 among the Guenons, what the Ateles are among the 

 Sapajous. 



Besides the characters noticed by our author, the Entellus 

 is distinguished by a black face as well as hands, which 

 contrasts strongly with the whitish covering of the rest of 

 his body. The hairs which surround his face form above 

 the eye-brows a sort of projecting toupee, and under the 

 lower jaw, a beard which is not pendant but protrudes 

 forward. The external part of the ear is large, and cir- 

 cumscribed with right lines. The nostrils are considerably 

 removed from each other. The jaws are less thick than in the 

 other Guenons, and it is doubtful whether it has any cheek 

 pouches. The general tint of the fur varies from whitish 

 gray to whitish red. It is reddish down the back and on 

 the loins, grows pale on the sides and becomes almost 

 totally white on the belly and internal facing of the limbs* 



