476 QUADRUMANA. 



know this Monkey by the name of Sampoolan ; and the Malays who live 

 there, by that of Djirangan gunung, which means Djirangan of the moun- 

 tains, to distinguish it from the Semnopithecus cristatus of Raffles, which 

 the natives designate simply Djirangan. From this difference of denomi- 

 nation, it is apparent that the present species (S. frontatus) inhabits, by 

 preference, the higher districts; while the S. cristatus selects for its 

 abode more especially the woods of the plains or lowlands. 



285 



Head of the Bare-fronted Moukey. 



THE HOARY, OR CRESTED MONKEY, OR CHINGKAU. 



SEMNOPITHECUS CRISTATUS. 



Simla cristata RAFFLES, in Descript. Cat. in Linn. Trans, (xiii. p. 244), read 



Dec. 5, 1820. 



Chingkau of Malays, RAFFLES, ut supra. 



Semnopithecus pruinosus . . . DESMAREST, Mamm. Supp. p. 533. 1822. 

 Semnopithecus pruinosus . . . LESSON, Species des Mamm. p. 62. 1840. 



SPECIFIC CHARACTERS. Contour slender; colour black, grizzled with white; fur long; 



hairs on the forehead diverging ; occipital crest long. 

 LOCALITY. Sumatra. 



DESCRIPTION. Description of an adult specimen (No. 19, Catalogue, 

 Mamm., 1838), in the museum of the Zoological Society, London, forming 

 part of the Rafflesian collection. The general form is peculiarly slender ; 

 the ears are large and rounded, and, together with the face, which is 

 nearly naked, are of a black colour ; the orbits are large ; the beard is 

 scanty ; the neck is short ; the hair of the body is long and falling ; the 

 universal colour is silvered, or hoary black, the hairs, which are black 

 throughout the greater part of their length, having white tips ; on the 



