OF THE PENINSULAR REGION. 5 



In examples from the Larut Hills, Perak, some individuals 

 show a narrow whitish brow-band broadening" on the cheeks 

 into bush-like whiskers (which sometimes include the ears 

 and extend beyond them below) and then narrowing again 

 on the throat leaving, in dark specimens, the chin and sides 

 of throat dark. Others have only a brow-band white. Length 

 of head and body about 18 inches. 



One young specimen is brownish to ochraceous-buff 

 with the entire head pale buff in strong contrast with the 

 body. 



A very large female from the same locality with a narrow 

 brow-band has the same pale extent only indicated in her 

 infant. 



Limits of range in the Peninsula unknown but recorded 

 from the Larut Hills, Perak, and from Temerloh, Pahang. 



Family CEECOPITHECIDAE. 



(Monkeys). 



Key to the Subfamilies. 



A. Cheek pouches absent ; muzzle not pronounced ; 



tail always much longer than head and body 



SEMNOPITHECINiE . 



B. Cheek pouches present ; muzzle elongated ; tail 



variable, often shorter than head and body 



Cebcopitheciisle . 



Subfamily SEMNOPITHECIN^E. 



Genus Presbytes. 



This genus contains a number of slender-limbed, crested 

 monkeys of active habits and purely herbivorous diet. The 

 stomach is divided into a number of pouches and from their 

 habit of feeding mainly on leaves and young shorts the animals 

 have been given the name of "leaf-monkeys:" they rarely 



R. A. Soc, No. 53. 1909- 



