1863.] dr. j. e. gray on the species of lemuroids. 13/ 



5, Prosimia. 



The head without any ruff or frhige. The ears hairy externally, 

 naked at the tip, more or less exposed. The wrist hairy. The skull 

 elongate ; the face produced, rather compressed on the sides, rounded 

 above ; forehead flat. 



* Temple, cheek, forehead, and crown white. 



1. Prosimia albifrons. , B.M. 



Lemur albifrons, Geoff.; Audeb. Makis, t. 3; Bennett, Zool. 

 Gardens, i. 299, fig. 



Grey-brown, hairs minutely punctulated ; face and end of the tail 

 black ; hinder part of the head, including the forehead, cheek, 

 temple, and base of ears, pure white ; chest, belly, and inside of the 

 limbs whitish grey. 



Hab. Madagascar {Brit. Mus.). Living in the Zoological Gar- 

 dens. 



** Temple, under the ears, and throat white. 



2. Prosimia nigrifrons. B.M. 



Lemur nigrifrons, Geoff. ; Bennett, Zool. Gard. i. 301, fig. 



Blackish or grey, greyer on the sides beneath ; base of the ears 

 reddish white ; cheek, throat, and chest white ; nose grey ; orbits, 

 forehead, cheeks, and end of the tail black or blackish. 



Hab. Madagascar {Brit. Mus.). 



*** Temples coloured like the back. 



3. Prosimia melanocephala. (PI. XVIII.) B.M. 



Fur yellowish brown, washed with black ; chin and beneath pale 

 rufous ; head black above ; cheeks, under the ears, with a convex 

 puff of hair of the same colour as the back ; tail brown, blacker 

 at the end ; hands and feet dark reddish brown. 



Young of same specimen (perhaps a hybrid with some other 

 yellow-puffed species) : head rather paler ; spot on side of the neck 

 rather yellower and more silky and puff-like. 



Hab. Madagascar {Brit. Mus.). 



4. Prosimia mongoz. B.M. 



Lemur mongoz, Linn. 



Mongous, Buffon, H. N. xiii. 298, t. 26. 



L. albifrons of Menageries. 



Fur reddish grey ; throat, chest, and beneath reddish grey ; the 

 crown of the head black ; face, chin, streak up the forehead and 

 across the crown of the head black ; cheeks and side of the forehead 

 iron-grey. 



Madagascar. 



The specimens of this species vary in the breadth of the band or 

 streak on the head, but it is also known by the black nose and the 



