138 LEMUR 



or less deep in hue. Apical half of tail ordinarily black. 

 Individual modifications of these hues often occur, and local 

 differences in the style of coloration are more or less apparent 

 as if indicating subspecies. Two species are placed in this 

 division L. collaris E. Geoff., = L. fulvus E. Geoff., and L. c. 

 rufus = L. rufus E. Geoff. 8 Head white to the vertex ; with 

 L. albifrons. e. Ears rather small, thickly covered with, and 

 hidden in the fur. Color of pelage brownish red ticketed with 

 black, the tail more or less black. Under parts either red, or 

 yellowish or whitish. One species represents this division L. 

 rubriventer E. Geoff. B. Nose covered with white hairs; 

 ears covered. Two species are placed here L. mongoz Linn., 

 and L. coronatus Gray. No new species are described, but 

 while L. mayottensis = L. nigrifrons examples are placed 

 among those of L. collaris and L. fulvus, in a foot note atten- 

 tion is called to its distinctness from those species. 



1880. Sclater, in Proceedings of the Zoological Society of London. 

 Lemur nigerrimus described. 



1890. A. Milne-Edwards and Grandidier, in Histoire Physique, 

 Naturelle et Politique de Madagascar. 

 Lemur cinereiceps is figured but not described. 



1894. F. E. Beddart, in Proceedings of the Zoological Society of 

 London. 



A paper in which the brain of the various species of the Lemu- 

 roidea are described and compared. The decision as regards 

 the species of the genus Lemur, is, that the range of variation 

 is not large, but the bigger brains are more complex than the 

 smaller. In a subsequent paper in the second volume of the 

 same publication, the brains of Lemur macaco and Lemur 

 coronatus are described and a comparison made with the brain 

 of Perodicticus potto. 



1901. C. I. Forsyth-Major, in Proceedings of the Zoological Society 

 of London. 



An important contribution dealing with the os planum and 

 lachrymal in Lemurs and Monkeys. The conclusion is, that 

 in those Lemurid^e which have a large lachrymal the os 

 planum is reduced and vice versa. The following points in 

 existing species are insisted upon when there is a "great 

 facial expansion of the lachrymal and particularly its exten- 

 sion beyond the fossa lachrymalis." 

 1. "It is scarcely more frequent in Lemurs than in the 



