J 841.] Asiatic Society. 839 



in the woods, though he had never actually seen it." Of all these species of Gibbon, 

 it is highly desirable that the Society should possess a good series, illustrative of the 

 principal variations of colour ; at present we possess but four specimens, namely the 

 Hoolock just mounted, and a young one in bad condition ; and a black specimen of 

 the Lar, which contrasts remarkably with the almost white example that has been 

 just set up. The kindness of Dr. Walker enables me to exhibit an equally pale specie 

 men of the Hoolock. I have had the skulls of all four taken out, and the entire skele- 

 ton of the new Hoolock is in course of preparation. I have saved also the coecum 

 with its small appendix vermiforme of this specimen. It should be remarked that the 

 individual of H. Lar here noticed, possessed 13 pairs of ribs, whereas Daubenton, as 

 quoted by all subsequent writers, found but 12 pairs in the specimen dissected by him. 

 (Vide BufFon, Hist. Nat. xiv. 104.) 



** When at Madras, two packages of skins were entrusted to my charge, for the 

 Society, the one a donation from Dr. Coles, and the other from David Ross, Esq. The 

 former consisted entirely of those of Mammalia, procured in Travancore. Among them 

 are some highly interesting specimens. Of the genus Semnopithecus, there are two 

 species new to the Museum, which previously contained only a half-grown female of 

 the Hoonuman, (S, Entellus.) One of these is referrible to the Hooded Seranote, 

 (Simia Johnii of Fischer, Sem. cucullatus, Is. Geoff., and apparently also the 

 •' Leonine Monkey" of Pennant and Shaw.) The specimen is a female, nearly half- 

 grown, but which had not begun to change its first dentition. It would seem to be this 

 species which is indicated in the following passage, extracted from Dr. Harknesse's 

 volume on the aborigines of the Neelghierry Hills, (p. 61.) That author notices — 

 " A number of large black Apes, which kept up a continual rustling among the trees, 

 and every now and then projected, from below the foliage, their grey-bearded visages, 

 chattering, and apparently surprised at our intrusion."* I have been informed that it 

 keeps always to the trees, and never, like the Hoonuman, resorts to houses ; this I 

 mention, because nothing has been hitherto published of the habits of the species. 

 The other specimen, if not an entirely new species, is a finer example of the adult 

 male S. cephalopterus, (Cercopithecus latibarbatus, Desmarest, C. leucoprymnos, 

 Otto, Sem. fulvogriseus, Desmoulins, S. Nestor, Bennett,) than appears to have been 

 hitherto met with by naturalists. Indeed, it differs so much from all the descriptions 

 I have seen of the latter, and from the figure supplied by Mr. Martin, that I much 

 suspect it will prove to be new, in which case I would propose for it the appellation — 

 aS'. hypoleucos.f This animal is nearly allied to the Entellus, but considerably smaller, 

 the present apparently aged male measuring about twenty-one inches from crown 

 to base of tail, the tail thirty-two inches, (which accords with the dimensions of 

 S. cephalopterus. J The entire back and shoulders, together with the outside of the 

 humerus and thigh, are of a rather deep and somewhat dusky brown, with a tinge of 

 chocolate, becoming paler laterally, and having passed into white on the sides, 

 under parts, and inside of the thigh and humerus; the face, ridge of hairs impending 

 the brow, a few on the cheeks and lips, with the whole tail, and the remainder of the 



* Vide a notice, also, in Dr. Royle's Illustrations of the Botany, &c., of the Himalaya Mountains, 

 at the end of a note to p. 30, where the productions of the Neelghierries are adverted to. 



+ Since writing this, I have seen the S. cephalopterus alive in the park at Barrackpore, and can 

 therefore pronounce on its distinctness from S. hypoleucos. — Cur. As. Soc. 



