76 LEMURID. 
p. 227. Le mongous, Lemur nigrifrons, var., F. Cur. Mamm. Lithog. 
t. LL. albifrons, Guérin, Icon. t.2.£ 3, P. anjuanensis, Gray ! 
Hab, Madagascar. 
Easily known from P. collaris by the small size of the rufous spot 
on the side of the neck, and the black nose and head. 
Considered by M. Cuvier the female of L. albifrons; but Mr. 
Macleay (Linn. Trans. xiii. p. 624) says that both sexes of this 
species have a white forehead. 
10. Prosimia collaris. B. M. 
Fur dark or pale iron-grey ; nose, outer base of the ears, chin, 
throat, and beneath white ; orbits, temples, sides of the face, chin, 
and sides of the throat rufous ; tail iron-grey, rufous at the base. 
Lemur collnnis, Geoff. Prosimia collaris, Gray, P. Z. S. 1863, 
p. 189! 
Hab. Madagascar. B.M. 
This species differs from P, albimana in the rufous spot on the 
side of the face being more extended, and the hands and feet are 
dark iron-grey. There is no dorsal stripe or crescent at the base 
of the tail. 
See Lemur rufus, Audeb. Makis, t. 12. f. 2; Schreb. t. 39. f. 1. 
Prosimia rufa, Lesson, Spec. Mamm. p. 228. Golden orange 
above, yellowish white;beneath ; cheeks and forehead white, 
with a black band extending to the occiput; muzzle black ; 
tail rufous, with a black tip. 
Lemur rubriventer, Is. Geoff. Compt. Rend. xxxi. . 876. 
L. flaviventer, Is. Geoff. Compt. Rend. xxxi. p. 876. 
B. Head roundish ; muzzle short. 
4, HAPALEMUR, I. Geoff. 
Cutting teeth 2, the upper ones behind the other on each side, 
crowded on the inside of the canine. Ears short and hairy. Tail 
elongate, hairy. Hinder limbs much longer than the front ones. 
Hapalolemur, Gebel, 1859. Hapalemur, Gray, P. Z. 8. 1863, p. 141. 
Hapalemur griseus. B.M. 
Dark iron-grey, with a yellowish tinge ; hairs black, with a sub- 
apical reddish band ; underside rather paler. 
Lemur griseus, Geoff. 1796. Maki gris, Buffon, Supp. vii. t. 24. 
Cheirogaleus griseus, Van der Toe Tie 18d, nk 1 f.1 
(skull). Hapalemur griseus, I. Geoff. Cat. Méth. p. 75. 
Hab. Madagascar. Shot in the woods. 
The upper cutting-teeth are placed one before the other, and 
crowded so as to be on the inner side of the canine. 
