of a Zoological Collection made in Sumatra. '24.5 



upper side of the tail are nearly black, the under part of the 

 body paler. (The same colour would in a horse be called iron- 

 grey, or grey with black points.) The disposition of the hairs 

 on the head is peculiar ; they are long, and diverge round the 

 face, forming on the top a kind of crest. Beard scanty. Face 

 and ears bare and nearly black. Orbits large. Nose rather 

 elevated between them, but quite flat at the nostrils, which 

 are situated at some distance above the upper lip, and open 

 laterally. Head and face small. Ears large and rounded. 

 Canines lono;. Neck short. Callosities large. Tail thin and 

 tapering, without any tuft. Thumbs on the fore-hands re- 

 markably short. It is altogether of a light and slender make. 

 The young Chingkaus are of a reddish fawn-colour, forming 

 a singular contrast with the dark-coloured adults. 



A variety of this is described by the natives to be of a light- 

 grey or whitish colour, and called Chingkau Puti. 



SIMIA MELALOPIIOS. 

 Simpai of the Malays. ^Juu* 

 Frequent in the neighbourhood of Bencoolen. 

 In general form and appearance this species nearly resembles 

 the preceding, but is a little larger, and of a very different 

 colour, being of a bright fawn-colour, mixed with black on 

 the head, back and shoulders. The whole of the under parts 

 is nearly white. Head and face small, with hair diverging 

 as in the preceding, but forming a longer and more distinct 

 crest on the head composed of black hairs, and also forming 

 a tuft on each cheek of a fawn-colour graduating into white. 

 The forehead below the crest is of a bright fawn-colour. Beard 

 scanty. The orbits, nose and ears scarcely differ in form from 



the 



