Pajeros Gray. 
Chaus Gray. 
60 
Felis Gray. 
Aelurina Gery.=Ailurogale Fitz. 
Gueparda Gray. 
Drepanodon Nesti, Bronu. 
Macherodus Kaup, Bronn. 
Smilodon Land, Bronn. 
Pseudelurus Gerv. 
Trucifelis Leidy. 
? Dinictis Leidy. 
? Aelurodon Leidy. 
Cryptoprocta Bennett. 
Proteles I. Geoff. 
Hyaena Linn, 
Crocuta Gray. 
B. GUEPARDINAE, 
Cc. MACHAERODONTINAE. 
All extinct. 
Other Felidae of Extinct Genera. 
X. CRYPTOPROCTIDAE, 
Single Genus. 
XI. PROTELIDAE. 
Single Genus. 
XII. HYAENIDAE, 
Genera. 
XIII. VIVERRIDAE, 
SUB-FAMILIES. 
I, Auditory bulla divided by an oblique groove into two portions; an an- 
terior with the auditory meatus, and a posterior more inflated and larger 
portion. (Flower.) Toes short, regularly arched; the last phalanges 
bent up, withdrawing the claws into a sheath; claws sharp. 
Aeluropodae.) 
(Gray, s. 
A. Nose simple, flat, bald, and with a central groove beneath.—Gray, s. 
Viverrida. 
1. Digitigrade: the under-side of the hind feet hairy, except the pads, 
metatarsus, and sometimes a small part of the tarsus. 
Upper flesh- 
tooth elongate; upper tubercular grinders small, transverse.—Gray. 
a. Body robust; tubercular grinders two above, one below on each 
side (?-}).—Gray. 
VIVERRINAE, (A,) 
