112 Mr. Vigors and Dr. Horsfield 



out the risk of injuring the specimen, unless by a more tedious process 

 than we can at present allow it to undergo. In the next number of this 

 Journal, we hope to be prepared to give a figure of the animal, a more 

 detailed description, and the system of dentition. 



M. Commerson's three species being but inaccurately particularised, 

 indeed distinguished from each other chiefly by size, the largest of them, 

 moreover, falling short of our species by at least two inches and a half, we 

 deem ourselves authorised to consider this a new species, and to deno- 

 minate it, after the name of the founder of the genus, 



Cheirogaleus Commersonii. 



Cheir. rufo-griseus, pectore abdomineque pallide rujis; regione supra 

 oculos circaque OS albd ; maculd frontali, lined utrinque ah oculis ad 

 occiput extendente, caudceque apice nigris. 



The hairs on the forehead of this animal diverge in the centre, leaving 

 a white mark over each eye ; while their extremities, being black, form a 

 dark line on each side, which runs backward, gradually vsddening, to 

 the hind head. The hairs of the body are fuscous at the base, brownish 

 red in the centre, and black at the extremity. The red prevails along 

 the ridge of the back, and on the base of the tail. The ears are clothed 

 with hairs at the base inside and outside ; their margins are naked. The 

 extremity of the toes and nails are black. The length from the forehead 

 to the root of the tail is 13^ inches ; of the tail, 17: the height from the 

 tip of the shoulder to the vvrist, 7 ; the length of the fore-foot from the 

 wrist to the end of the middle nail is, 2|; of the hind-foot, similarly 

 measured, 3J. 



The specimen was purchased by Mr. Bell, in a preserved state, from a 

 dealer. No note was to be obtained of its locality. 



Ord. Glires. Linn. 



Fam. SciuriDjE. 



Gen. SciURUS. Liyin. et Auct. 



The discovery of a beautiful species of Squirrel in the Sumatran col- 

 lection, presented to the Society by Sir Stamford Raffles, gives us the 



cylindrical. The nails do not agree with those of M. Commerson's figures. 

 They more resemble those of the Monkeys. 



