SIMIAD.E. 481 



from the axilla to the elbow, and the inside of the thighs, are white, with 

 an abrupt margin ; and a white line runs down the chest and abdomen to 

 its lower part : the sides of the face are not tufted, but a line of short 

 black hairs occupies the malar bones ; the skin of the face, ears, and 

 palms is black. 



ft. in. 



Length of head and body 17 



Ditto tail . ': 1 10| 



The present species, regarded by Sir T. Stamford Raffles as the 

 Simia maura, was first described as an addition to the genus Semno- 

 pithecus^ by Dr. Horsefield, in the Appendix to the Life of Sir T. S. 

 Raffles, under the specific title of femoralis, in allusion to the conspicu- 

 ous mark of white which runs down the inside of the thighs. 



The museum of the Zoological Society has been recently enriched by 

 another adult example (female) of this rare Monkey from Borneo, and 

 a young Semnopithecus, presumed to be specifically the same. 



The adult female closely agrees with the individual from which the fore- 

 going description is taken, excepting that, not only the inside of the thighs 

 is white, or, rather, yellowish white, but that, this colour is continued in 

 a distinct line, tapering down the inside of the legs to the ankle-joint. 



The presumed young has the face of a reddish black colour, with 

 black superciliary hairs ; the fur is short ; the general colour is white, 

 with a black mark beginning on the vertex, and continued along the back, 

 where it is broader, and thence along the upper surface of the tail. The 

 outer side of the shoulders and arms are washed with black, as are also 

 the posterior limbs, but less decidedly. 



The young specimen of a Semnopithecus, in the collection of the Earl 

 of Derby, presents the same characters ; it is the Semnopithecus dorsatus, 

 Waterhouse, in MSS. The following is an accurate description : 



The general colour is white, with a very faint yellow and grey tint ; 

 the back of the head, the middle line of the back, the tail, and the 

 external aspect of the fore limbs, together with the fore feet, are of a 

 brownish black ; there are a few longish black hairs on the fore part of 

 the forehead ; the tail is of a dirty yellow white beneath, for two-thirds of 

 its length, and a few greyish hairs are intermingled with the black ; toward 

 the tip it becomes more full, and ends in a tuft ; the hind feet are blackish, 

 with grey hairs thickly intermingled on the toes ; toward the hinder part 

 of the foot the hairs assume the same pale colour as that of the legs, 

 interspersed, however, with blackish hairs in about equal proportions ; 

 the dusky black colour of the anterior limbs is extended on the lower 

 part of the fore-arm, so as nearly to surround the wrist ; the face appears 

 to have been brownish, or dusky, passing into dull flesh-colour around 

 the eyes. 



VOL. I. 3Q 



