59 
b. 3. Teeth 40 (M 2, PM 4, C 4, I 2X2), resembling those of 
Canide ; first upper pre-molars sometimes deciduous; last pre- 
molar of upper jaw and first molar of lower sectorial. Lower jaw 
as in Procyonide. 
BASSARIDIDAE. (XXI.) 
Familiz incerte sedis. 
1. Teeth 32? (M 2? PM 2? C1? 13; x2)? last pre-molar of lower jaw 
moderate; first molar obtusely sectorial ; second oblong, tuberculated. 
SIMOCYONIDAE. (XXII.) 
2. Teeth 44 (M2, PM 4,C 4,132)? last pre-molar of upper jaw tri- 
tuberculate; true molars tuberculate. 
ARCTOCYONIDAE. (XXIII.) 
3. Teeth 44? (M 2, PM 4, C 3, I 3X2)? last pre-molar of lower jaw 
enlarged ; first as well as second and third molars sectorial. 
HYZNODONTIDAE. (XXIV.) 
SUPER-FAMILY AELUROIDEA. 
IX. FELIDAE. 
SUB-FAMILIES, 
I. Canine teeth of upper jaw moderate, with transversely convex anterior 
and posterior margins ; those of lower jaw equal to upper and much ex- 
ceeding adjoining incisors. 
A. Sectorial tooth of upper jaw with an inwardly projecting antero-internal 
lobe. Claws retractile. 
B. Sectorial tooth ef upper jaw with no internal lobe. Claws not re- 
tractile. 
GUEPARDINAE, 
II. Canine teeth of upper jaw enormously developed, compressed, and with 
distal trenchant anterior and posterior margins; those of lower jaw re- 
duced in inverse ratio, and not much larger than the adjoining incisors. 
(Sectorial tooth of upper jaw with a transverse inner lobe some distance 
in front of the anterior end of the tooth.) 
MACHAERODONTINAE. 
A, FELINAE. 
Lynx Raf. 
Lyncus Gray. Caracal Gray. 
Neofelis Gray. 
Viverriceps Gray. 
Felis Linn. 
Unciu Gray. Leo Gray. 
Tigris Gray. Leopardus Gray. 
Pardalina Gray. Catolynx Gray. 
FELINAE. 
(A) 
(B.) 
(C.) 
