SIWALXK AND NARBADA CARNIVORA. 
■51—228 
although differing in a comparatively slight degree from the corresponding tooth of 
H. sivalensis , yet belongs to a markedly distinct species ; and since the Crag tooth 
differs from both the above in nearly the same degree as they do from one another, 
it seems to the writer that the evidence for identifying the Crag tooth with H. 
sivalensis is by no means certain, and he is rather inclined to think that it may belong 
to a species distinct both from the latter and from the Punjab species, although it 
will require more complete specimens of the dentition before the question can be 
finally decided. 
Second maxilla . — In the Indian Museum there .is a specimen of a left maxilla of 
a species of ITycenarctos (No. D. 12), collected by Mr. Theobald 
in the Siwaliks of the Punjab, containing the last three cheek- 
teeth, the two first of which agree in all respects with those of 
the Asnot specimen. The teeth are in too damaged a condition 
to afford a good figure of the whole ; but the specimen is important 
in showing the last true molar, of which a woodcut (fig. G) is here 
given. This tooth differs very markedly from the corresponding 
tooth of H. sivalensis in having its postero-internal angle with a 
more marked production, being in this respect very close to the 
corresponding tooth of Arcfotherium (woodcut, fig. 7). 
The fragment also shows that the orbit extended farther 
forwards than in IT. sivalensis ; its anterior border reaching nearly 
as far as the middle of m. 1 . This causes ni. 2 to be placed relatively farther back, 
whence on the palatal aspect it extends some distance behind the anterior zygomatic 
root, in place of being entirely in advance of it as in H. sivalensis (“ F.A.S.,” pi. 0, 
fig. la). In the palatal aspect of the Punjab specimen no portion of the orbital 
surface of the maxilla comes into view, as it does so largely in the last-named 
species. The Punjab specimen also differs in the much smaller vertical depth of the 
anterior zygomatic root, the respective diameters being 1 -75 and 2 ‘5 inches : this 
probably indicates that the Punjab species was an animal with a less ponderous skull ; 
an inference which will be confirmed by the study of the mandible. 
The dimensions of the teeth of the Asnot specimen (No. D. 6), of the specimen 
under consideration, and of those of II. sivalensis , are compared together in the 
following table : — 
Present species. H. sivalensis. 
Pig. 6. Eytenarctos pun- 
jabiensis, Lyd. 3rd left 
upper true molar, from a 
specimen of the maxilla : 
from the Siwaliks of the 
Punjab. Ind. Mus. (No. D. 
12 ). 
Length of last 3 cheek-teeth 
D. 12. 
3-48 
1-19 
Width „ . 
, (at middle) .... 
0-94 .. 
0-78 
Length ,, m. 1 
(outer ridge) .... 
1-2 
1:2 
,, ,, ,, 
(inner ,, ) .... 
1-18 .. 
0-98 
Width ,, ,, ,, 
1-08 
1-05 
Length ,, „ 2 
(inner ridge) ...... 
1-11 
1-1 
„ „ „ „ 
(outer ,, ) 
0-96 .. 
1-0 
