1843.] Asiatic Society. 175 



any of those described by Mr. Martin. It most nearly accords with M. Desmarest's 

 description of his Cercopithecus albocinereus, as rendered by Mr. Martin in his 

 account of S. comatus ; one exception being, that the ears of the latter are stated to 

 be "large, naked, angular, and black," whereas in the specimen before me they are 

 proportionally smaller than in the Entellus, and their duplicature above is well clad 

 with whitish hairs. The general aspect of this animal recals to mind that of a Lemur : 

 having the fur softer, longer, and more dense than in the Entellus, and the tail well 

 clad and distinctly tufted at its extremity ; there is no radiating centre, nor vertically 

 raised crest, upon the head, and the fur of the occiput is rather short (wherein it 

 decidedly differs from S. obscurusj ; but the usual superciliary black hairs are of 

 considerable length, and behind these the fur of the forehead is rather short and 

 directed backward, being mingled with longer black hairs on the sinciput directed 

 laterally, while those of the crown also are a little lengthened and stand out behind, 

 overhanging the occiput, thus imparting somewhat the appearance of a small flat cap 

 laid upon the top of the head ; there are also a few scanty fine black hairs on the sides 

 of the face and of the upper lip. General colour a delicate soft grey, rather darker on 

 the upper part of the back, and slightly inclining to albescent on the arm, fore-arm, 

 and leg ; tail a little sullied with yellowish brown, and darker towards its extremity, 

 which is of a dusky-brownish hue : sides of the crown blackish, chiefly from the inter- 

 mixture of the laterally disposed fine black hairs already mentioned ; the forehead 

 somewhat pale ; face black as usual ; the hair of the cheeks whitish and strongly con- 

 trasting, being considerably lengthened laterally and posteriorly, so as to hide the 

 lower part of the ear, behind which is also some similar long and glistening whitish 

 hair continued from beneath ; scanty beard also whitish ; and the whole of the lower 

 parts and inside of the limbs dull fulvous-white : the hands have a slight blackish 

 stain, except on the penultimate phalanges of the digits, and the feet have a similar 

 stain on the first or basal phalanges only ; hence the adult animal would perhaps have 

 the hands and feet black, as in the true Entellus, or partly so. The specimen described 

 is a female ; and, should it prove new, the species might be appropriately termed S. pilea- 

 tus. I may add, that the skin is everywhere of a light colour, except on the naked 

 parts. The dimensions of the recent animal were— from vertex to tail eighteen inches, 

 the tail twenty-eight inches and a half, or with its terminal tuft thirty-one inches ; length 

 of humerus six inches, of fore-arm the same, and of hand four inches and a quarter ; 

 femur seven inches and a half, tibia seven and three quarters, and foot from heel six 

 inches and a quarter. Irides rather pale brown. 



I strongly incline to suspect that this handsome Monkey is of the species termed 

 albocinereus by M. Desmarest, of which he states that it is "a new species (not 

 figured), from the collection preserved in the [Paris] Museum, and brought by M. 

 M. Diard and Duvaucel. Country, the Island of Sumatra." M. Isidore St. Hilaire, 

 however, according to Mr. Martin, states that "no such animal was ever brought from 

 India [the East] by M.M. Diard and Duvaucel, answering to Desmarest's descrip- 

 tion, nor does any specimen agreeing with it, exist in the Museum of Paris. During 

 the author's [Mr. Martin's] recent visit to Paris, he examined, separately, every 

 Monkey in the Museum, and, certainly, could discover no species to which the des- 

 cription could be said to be fairly applicable. Moreover, every specimen brought 

 from Java or Sumatra, and obtained there bv M. M. Diard and Duvaucel, is well 



