1SG3.] DR. J. E. GRAY ON THE SPECIES OF LEMUROIDS. \A'> 



** Back with a black streak, forked on the occiput. 



A. Lepilemur furcifer. 



Lemur furcifer, Blaiuv. Osteogr. 183!». 



Cheiroyaleus furcifer, I. Geoff. 



Cheirogale, Chenu, Encycl. Quadruin. p. 269, f. 218? 



" Grey ; back with a streak, forked on the occiput and extended 

 to the eyes ; end of the tail black." 



Hab, Madagascar. 



Dr. Dahlbom observes that this species would be a Lepi/emnr if 

 it was without upper cutting teeth ; but as our Lepilemures have these 

 teeth, I think it had better be placed in this genus. 



1 1. Callotus. 



The ears very long, membranaceous, the hinder edge contractile, 



so as to fold up the conch like the long-eared Bats. Teeth .' 



canines strong. Feet broad, short, only two-thirds the length of the 

 shank. The toes broad, with distinct roundish disks. The thumb 

 very broad. The eyes very large ; the iris very contractile, leaving 

 a very small, erect, oval or lanceolate pupil. Tail very long, with 

 spreading hairs, tapering at the end. 



Callotus monteiri. 



Galago monteiri, Bartlett, MS. 



Uniform pale grey ; side of the nose rather dark ; hair of the body 

 soft, dark slate-colour, with long, white, rather crisp tips. 



Hab. Western Africa : Angola. 



This genus chiefly differs from Galago in the shortness, breadth, 

 and strength of the hind feet. The animal is only known from' a 

 specimen living in the possession of Mr. Monteiro, who has had it 

 for more than a year. It is of the size of a small Common Cat ; 

 larger than O tog ale crassicaudata. 



■\-\-\ Feet elongate, slender, nearly as long as the shank or shin ; 

 tarsal bone longer than the metatarsal. 



12. Galago. 



Cheirosciurus, Cuv. & Geoff. 1795. 



Galago et Galagoides, A. Smith. 



Scartes, Swainson. 



Ears large, pellucid, membranaceous, hinder edge contractile. 

 Cutting teeth "-^ ; the upper equal, slender ; the lower shelving 

 upwards. The upper canines erect ; the lower ones decumbent, 

 shelving forwards and upwards. The first false grinder short, l)road, 

 three-lobed, like the others, and not prominent and erect like the 

 canines. 



Proc. Zool. Soc— 18r)3, No. X. 



