628 MR. W. A. FORBES ON THE UAKARI MONKEVS. [NoV. 30, 



much after the removal of the hones inside. Other specimens in 

 the Paris Museum, Mr. Blanford informs me, have tails of about the 

 same length as ours, while they closely correspond in other respects, 

 the amount of grey on the crown of the head varying in different 

 specimens. 



The accompanying plate (Plate LXL), taken from a sketch made 

 by Mr. Wolf shortly after the animal's arrival, will give a more 

 correct impression of this Monkey than the figures hitherto published 

 of it. 



The weight of our specimen, considerably emaciated, was 2 lb. 

 1 1 oz. The following measurements were taken on the body before 

 being skinned or otherwise interfered with : — 



inches. 

 Total length (measured in a straight line from super- 

 ciliary ridges, over head and body, to tip of tail). . 21*0 



Length of tail, including hairs 6"5 



Fleshy part of tail 5-65 



Length of head, from occipital prominence to glabellum 2*65 

 From occiput to anterior margin of upper lip, in a 



straight line. .... 3-65 



Breadth of face (just above the eyes, from outer 



margin of orbits) 2*0 



Breadth of nasal septum O'/o 



Breadth of mouth 1-2 



Length of arm 5*5 



Length of forearm , . . . 5*0 



Length (extreme) of manus 3-5 



Length of thigh 6*5 



Length of leg 575 



Length (extreme) of pes (plantar surface) 5-2.') 



The face, chin, and sides of the head, as far as the ears, are 

 nearly naked, with only a scanty covering of hairs. The nose and 

 the interval between the eyes (measuring i inch) are very nearly 

 bare, there being here only a very few most minute hairs, only seen 

 in a side light. Along the superciliary ridges are a few loug, for- 

 wardly directed, black hairs, white at the base, and slightly curved 

 forwards. There are a few similar hairs also on each side of the 

 face between the nostrils and the angle of the mouth, as well as on 

 the chin. 



The muzzle, which is somewhat truncated, and the chin are 

 sparsely covered with short bristly white hairs, directed more or less 

 downwards and forwards. 



The naked skin of the sides of the head was in life flesh-colour, 

 the naked ears being slightly redder. The face and muzzle were, as 

 will be seen from Mr. Wolfs sketch (Plate LXL), during life bright 

 vermilion-red, so red, indeed, as to give the animal the appearance 

 of being painted ; but the amount of this bright red varied much 

 fi-om time to time, depending, apparently, both on the animal's 

 health and on its emotions. Mr. 13artlett "tells me he has seen the 



