478 



THE GIBBONS DESCRIBED. 



narrow membrane, which extends even to the base of the ungueal 

 phalange. 



The Gibbon- Lar (Hylobates or Pythecus Lar) is smaller than the 

 preceding. His skin is of a blackish-brown, with the four extremities 

 and the framing of the face white. He ranges over the peninsula of 

 Malacca, and, according to some travellers, the kingdom of Siam. 



GlBBOX-SlAMANU AND MOURSIXG GlBBOX. 



The \You-Wou, or Silvery Gibbon (Hylobates leuciscus), another 

 Malayan species, commends himself to our notice by the silvery gray 

 of his skin on the upper parts of the body and the outer sides of the 

 anus and legs. His name of " Wou-Wou" is intended to describe his 

 peculiar uttei^ance a kind of clucking totally unlike the howlings of 

 the other gibbons. 



Ashen-gray is the colour of the skin of the Mourning Gibbon 



