Monograph of the Genus Semnopithecus. 435 



Syn. — Simla nemceus. Linn. 



Pygathrix nemceus. Geoffr. in Ann. Mus. vol. xix. 

 Laslopyga nemceus. Illig. in Prodrom. Syst. Mam. 

 Douc. Buffon ; Hist. Nat. vol. xiv. 

 Cochinchina Monkey. Pennant. 



S. Entellus. Entellus Monkey. 



Hair of the head radiating from a centre ; superciliary rows of bristles 

 projecting, long, and Mack, very marked. General colour ashy grey, with 

 a tinge of straw yellow, passing into dull white on the sides of the face and 

 under parts of the body. In young individuals, the hands and feet are 

 washed with dusky black, but this is not the case in adults, which have a 

 paler colouring altogether, often verging upon white, tinted with pale straw 

 colour. Face black, with a slight violet hue. 



Length of an adult male fom vertex to root of tail 2 feet 5 inches ; the 

 tail being 3 feet 1 inch to the end of the hairs, which run out into a sort of 

 pencil, but do not form a tuft. 



Habitat India and the islands of the Indian Archipelago. 

 Syn. — Rollewai. Thunberg, in Travels, 1793. And in Wolf: see 

 Residence in Ceylon, 1783. 



Note. — From some unaccountable mistake the name of Rollewai, or 

 Roloway,has been transferred to the Diana monkey, (Cercopithecus Di- 

 ana), a native of Africa. 



S. fascicularis. Kra, or Croo Monkey. 



Back and upper part of the head reddish brown ; tail and sides of the 

 body grey, becoming still paler on the inside of the limbs, and under sur- 

 face of the body. Face brown, with short white hair, and a full grey tuft 

 on each side, before the ears. Ridge of the nose between the eyes promi- 

 nent. We have examined a variety of this monkey, of an ashy grey colour, 

 with the top of the head and back of a greyish brown, patches of the same 

 occurring on the arms and thighs. 



Length 22 inches ; tail 2 feet 8 inches. 



Habitat Sumatra and the Malay islands. 

 Syn. — Simla fascicularis. Raffles, in Linn. Trans, vol. xiii. p. 246. 

 Semnopithecus comatus ? Desm. 

 Kra, of the Malays. 



Sir S. Raffles notices a species, (or as he terms it, variety), 

 agreeing with the Kra in colour, but far less in size, being un- 

 der a foot in length, and wanting the full tuft of hair on the 

 sides of the face, so remarkable in the Kra ; it is called ' Kra 

 Buku? by the Malays, and is found in Sumatra and the other 

 Malay islands. 



We shall term it provisionally Semnopithecus Buku. Is 

 it the Presbytis mitrata of Eschscholtz ? 



S. cristatus. Chingkau. 



General colour silvered black ; the hairs, which are black throughout 

 the greater part of their length, having white tips. Face and limbs black ; 

 under surface of body more inclining to grey. The hairs of the forehead 

 diverge over the face, those on the top of the head are elevated into a peak- 

 ed crest. The hair of the body long and falling. 



