of a Zoological Collection made in Sumatra. 243 



feet, and is altogether of a more delicate and slender frame. Its 

 colour is a dirty-yellowish white, which becomes nearly brown on 

 the under and inner parts, contrary to what takes place in most 

 animals, which are lighter below. The face and hands are black : 

 the hair is softer and more woolly than that of the Siamang, and 

 its cry is softer and less harsh. 



Both these are of a more timid disposition, and have neither 

 the strength nor boldness of the Siamang. 



With regard to the Ungka puti, it is the general belief of the 

 people of the country that it will die of vexation if it sees the pre- 

 ference given to another; in corroboration of which I may add, 

 that the one in my possession sickened in this situation, and did 

 not recover until relieved from the cause of vexation by his rival 

 the Siamang being removed to another apartment. 



Another variety has been met with at Bencoolen, which only 

 differs in being of a light-brown colour, with a still lighter circle 

 round its black face. 



In none of these are there any naked folds of skin on the throat, 

 and all the toes are separate. These marks are fully sufficient 

 to distinguish them from the Siamang, which I therefore propose 

 to establish as a distinct species under that appellation, if the 

 characteristic one of S. syndactyla be not thought preferable. 



SIMIA Carpolegus. 

 Bruh of the Malays, j^ 



This is a very common Baboon in the vicinity of Bencoolen, 

 where the inhabitants frequently train it to ascend the trees for 

 the purpose of gathering coco-nuts, a service in which it is very 

 expert. 

 It is about two feet high when sitting : colour yellowish-brown 



mixed with black on the back, and pale or whitish in front. 



% i 2 The 



