ga2 Mr. R. I. Pocock on the 
as in the retention of nigripes and chaus in Felis, of caracal 
in Lynx, and of rubiginosa in Prionailurus. . But such 
questions, in reality of no great moment, can easily be 
adjusted later, if modification is considered desirable. 
Even if time and space had permitted, it would have 
been beyond my present purpose to attempt complete 
descriptions of the skulls of the genera admitted. Only 
the points that appeared to me useful in determining thie 
genera have been referred to. Some of them may probably 
break down when further material is examined. Others, on 
the contrary, may be discovered or used ; and since we are 
still in ignorance of the external characters of several of the 
genera, and since the study of the so-called tiger-cats of the 
tropics is hedged with difficulties, the classification, although 
I believe it to be in the main correct, is still in many respects 
tentative. 
In the choice of names I have been guided strictly by 
priority, so far as it could be ascertained; and in the case 
of the names proposed by Severtzow line-priority has been 
taken as the determining factor in the selection. 
The Subfamilies of Felide. 
Reverting to the papers I have recently published on the 
external and cranial characters of cats, I propose to emphasize 
the characters distinctive of Panthera and Uncia and of 
Acinonyx as compared wiih the rest of the genera of Felide, 
by dividing this family into three subfamilies as follows :— 
1. Ferin#.—Suspensorium of the hyoid normally ossified, 
holding the larynx close up to the base of the skull 
and restricting its movement. ‘Tips of the digits of 
both fore and hind feet furnished at least with a 
single cutaneous lobe protecting the retracted claw 
on the inner side of digits 2 and 3 and on the outer 
side of digits 4 and 5. 
Containing the genera characterised in this paper. 
cw) 
. ACINONYCHIN#.—Resembling the Feline in the struc- 
ture of the hyoid, but differing from them and from 
the Pantherine in the total suppression of the 
cutaneous lobes guarding the claws. 
Genus Acinonyx (Cynailurus) for jubatus. 
(SX) 
. PanTHERINaZ.—Suspensorium of the hyoid imperfectly 
ossified, its inferior portion consisting of a larger or 
shorter elastic tendon conferring great mobility upon 
