319—142 INDIAN TERTIARY AND POST-TERTIARY VERTEBRATA. 
inferieur presente , dans sa partie anterieure , une sorte deface anterieure qui rapelle unpeu une 
disposition que Von rencontre sur un Felin des phosphorites [ Eusmilus bidentatus ].” These 
characters are precisely similar to those of the specimen under consideration. In 
one of the Quercy specimens 1 pm. 2 is an exceedingly minute tooth, placed midway 
between the canine and pm. 3 : the interval between the two latter teeth is relatively 
shorter than in the Siwalik jaw, but in another specimen 2 it has nearly the same 
proportion. The jaw of the Quercy species is deeper than the Siwalik, and its 
lower margin more curved ; but these differences need not be of more than specific 
value. It is not known whether m72 was present in the Siwalik jaw, but such was 
very probably the case. 
The resemblance of the Siwalik jaw to M lurogale intermedia is so close that there 
can be no question that they are closely allied, although specifically distinct ; and 
that they not improbably belong to the same genus. Since it is always preferable to 
refer a new form to an existing genus till such time as it is proved to be distinct, the 
Siwalik jaw may be provisionally named JElurogale sivalensis. Although the 
symphysis of the latter has not a descending expansion, yet its vertical depth, and the 
marked concavity behind the canine, indicate that the upper canine was relatively 
long ; while the whole form of this part of the jaw presents a considerable 
resemblance to that of certain species of Machcerodus. In the following table the 
dimensions of the specimen are compared with those of Felis par dus, F. isabellina , 
and JElurogale intermedia , var. major : — 
F. pardus.3 F. isabellina. 3 2E. sivalensis. 2E. intermedia.4 
'a. bT'' 
Interval between canine and hinder border of m. 1 2-42 
2-65 2-65 3-28 
,, „ ,, ,, pm. 3 
Space occupied by three cheek-teeth 
Length of alveolus of pm. 3 
Width ,, „ ,, „ ,, 
Length ,, ,, ,, ,, 4 
Width „ „ „ „ „ 
Length ,, ,, ,, m. 1 
Width „ „ „ „ „ 
Depth behind canine 
,, ,, m. 1 ... 
Antero-posterior diameter of canine 
Transverse „ ,, ,, 
0- 58 
1- 94 
0-51 
0-21 
0-6 
0-32 
0- 73 
0-28 
1- 17 
0-92 
0-68 
0-42 
0- 37 0-8 
1- 5 1-92 
0-4 0-47 
0-19 0-19 
0-5 0-65 
0-2 0-24 
0-62 0-78 
0'24 0-29 
0-94 1-18 
0-64 0-8 
0-44 0-52 
0-32 0-32 
0-62 1-11 
2-05 2-22 
0-57 0-67 
0-68 0-68 
0- 72 0-9 
1- 0 1-5 
0-97 1-22 
0-38 
JE. sivalensis is, therefore, intermediate in size between the Tibetan lynx and 
the leopard. The proportions of the lower premolars are nearer those of the 
same teeth in the lynx than in the leopard. 
1 Filhol, op. cil,, fig. 211. 3 From specimens In the writer’s collection. 
2 Ibid, fig. 212. 4 From the specimens figured by M. Filhol. 
