Dr. J. E. Gray on a new 8])ecies of Lemur. 339 



In concluding this abridgment, which is certainly too short 

 to enable the reader to judge as to the justice of my opinions, 

 but may perhaps suffice to give an idea of them, I will add 

 one or two words — namely, that my memoir is illusti-ated with 

 fom-teen woodcuts representing the figures, in part restored, of 

 the principal types of the pala^ichthyological system, and also 

 that the ichthyological table annexed to it, when compared 

 with that in the great work of Prof. Agassiz, will furnish the 

 means of seizing at a glance the principal progress made in 

 palseichthyology from 1843 to 1869. 



XLII. — On a new Species of Lemur fi'om, Madagascar^ and 

 on the Changes of Lemur macaco, Linn. By Dr. J. E. 

 Gray, F.R.S. &c. 



Prosimia rujipes^ n. sp. 



Fur woolly, thick, dark rufous brown, with a golden gloss 

 from the tips of the hairs ; the sides of the head and cheeks, 

 the hand and arm, and the feet and the sides to the under part 

 of the body bright bay. Tail nearly black, rather longer than 

 the head and body. Male with the middle of the throat greyish ; 

 face with short blackish hair. Female similar above, but with 

 the chin, throat, and front half of the under part of the body 

 reddish grey ; the face and edge of the under jaw covered with 

 blackish hairs. 



Hah. Madagascar (Mr. Crossley). B.M. 



With these two Lemurs were received a series of Varecia 

 varia and V. rubra^ showing that they are one species, ex- 

 tremely variable in colour ; but, as far as I have observed, the 

 head, the underside of the body, limbs, the feet, and tail are 

 black, the back of the neck and the base of the tail are always 

 white, while the colom* of the back varies from dark red-brown 

 through all gradations to pui'e white. In most specimens the 

 shoulders, the sides of the chest, and the outside of the thighs, 

 are the same colour as the back ; but in one specimen these 

 parts are deep black like the underside of the body. I might 

 have been inclined to consider this variety to be a distinct 

 species, as I believe it has been considered {Lemur macaco^ 

 Linn.) ; but one of the nearly white specimens has the base of 

 the white hair of these parts black and partly showing through 

 the white fur, and tlie white hairs of all parts of the body 

 have a black base. 



This series shows that Lemur macaco and Lemur ruhev and 

 niger of Geoffroy are one species. 



