440 Monograph of the Genus Semnopithecus. 



S. obscurus ; Reid. 



This species was lately described as new at the scientific 

 meeting of the Zoological Society, 1837. It is closely allied 

 to the preceding, and may perhaps eventually prove to be a 

 variety ; it has, however, an occipital crest. 



Forehead blackish brown, passing into brown on the top of the head, this 

 colour merging into cinereous on the occipital crest; general colour brown- 

 ish black, especially along the central line of the back, merging into a grey- 

 ish tint on the outside of the thighs. Tail dusky cinereous. Hands and 

 feet black. Fur long and moderately soft. 



Length 1 foot 7 inches ; tail 2 feet 5 inches. 



Habitat India, (Ceylon, Siam ?) 

 Syn. — Semnopihecus leucomystax. Temm., in Van Hoeven's Journ.? 



We have not seen the specimen described by M. Tem- 

 minck, but have reasons for believing it to be identical with 

 S. obscurus. 



S. nasalis. 



Nose enormously developed, forming a sort of proboscis, with the nasal 

 apertures situated as in man. Top of the head, occiput, and scapular por- 

 tion of the back chesnut brown, passing, on the body, into deep sandy red. 

 Sides of face and a stripe over the shoulders, yellow; rump, tail, fore arms, 

 legs, hands, and feet cinereous : under parts of body pale yellowish. Chin 

 without a decided beard. 



Length from vertex to origin of tail 2 feet 2 inches ; tail 2 feet 1 inch. 

 Habitat Borneo and Cochinchina. 

 Syn. — Simia nasica. Linn. 



Nasalis larvatus. GeofTr. 

 Simia nasuta. Shaw. 



Guenon a museau allonge. Buffon ; ' Hist. Nat. Supp.' vii. 

 cum jigura. 



S. recurvus. 



The top of the head, sides of the face, and beard of the chin, bright ches- 

 nut, as is also the anterior part of the humerus. The chest is pale chesnut 

 red; back sandy brown, abruptly terminating at the rump, which, together 

 with the tail, is deep grey. Abdomen bright straw yellow; wrists and hands, 

 inside of arms, and of posterior extremities, together with the feet, dusky 

 grey; outside of thighs rufous, outside of legs sandy red. 

 Syn. — Nasalis recurvus. Vigors & Horsfield ; in ' Zool. Journal.' 

 I This species, under the title of Nasalis recurvus, was first 

 described by Mr. Vigors and Dr. Horsfield, in the 4th vol. of 

 the ' Zoological Journal,' p. 109, and stated to have been pro- 

 cured in Borneo, by a collector sent to that island by the late 

 Sir Stamford Raffles : it forms part of the Rafflesian collec- 

 tion in the museum of the Zoological Society. The nose in 

 this species, instead of being recumbent, as in the former, is 

 turned up, and also shorter in proportion; and the chin is 

 furnished with a prominent beard. Tn its general colour it 



