SIMIAD.E. 513 



long hair about the head ; the eyes are deeply seated, and shaded by a 

 continuous arch of long hairs directed forward ; the irides are broad, and 

 of a brown ochre colour ; the hair forms a bunch on each cheek, re- 

 sembling whiskers ; there is no beard ; the cheek-pouches are rudimen- 

 tary only, and not observable externally, even when filled, being 

 concealed by the bushy hair of the cheeks ; the thumbs of the anterior 

 hands are short ; those of the posterior hands are long ; the general 

 colour is deep grey, washed on the back with olive green, the whole of 

 the upper surface of the animal is of a mingled black and yellowish 

 ochre colour, each hair being banded black and ochre ; the black prevail- 

 ing on the shoulders, the ochre on the back and flanks ; the under 

 surface is grizzled white and black ; the anterior limbs are of a uniform 

 black ; the posterior are black, tinted with a little of the dorsal colour ; 

 the chin and throat are of a pure white ; the tail is black, and half as 

 long again as the body. 



ft. in. 



Length of head and body 19 



Ditto tail 27 



An account of the visceral anatomy of this species, by Prof. Owen, 

 will be found in the Proceedings Zool. Soc. for 1832, p. 19. "The 

 larynx was, as usual, in the Cercopitheci and Macaci, viz., with two 

 wide lateral sacculi, and a middle pouch, continued forward, between the 

 os hyoides and thyroid cartilage, and extending about three inches under 

 the skin of the neck. The aperture by which it communicated with the 

 larnyx was large enough to admit the little finger." 



The first specimen known of this interesting species is that preserved 

 in the Museum of the Zoological Society, London, and which died in the 

 Society's menagerie. According to Col. Sykes, by whom it was 

 presented to the Society, the animal " was obtained at Bombay, where 

 it was believed to have been taken from Madagascar." Most probably, 

 however, it was originally brought from the African coast ; no well 

 authenticated instance, indeed, occurs in which any Monkey has been 

 found to be indigenous in that island ; for, though both the Mangabey and 

 Sooty Monkey were supposed, by Buffon, to be natives of Madagascar, 

 it is now ascertained that they are exclusively peculiar to the African 

 Continent. 



The White-throated Monkey is closely allied to the Malbrouck and 

 the Grivet, but has its own characters too decided to allow its being 

 confounded either with one of these, or with any others of the genus ; 

 the uniform black colour of the anterior limbs, and also of the posterior 

 extremities and tail, and the grizzled white and black of the under 

 surface, sufficiently distinguish it. 



GENERAL HISTORY. With respect to the habits of this animal, in a 



VOL.1. * U 



