MOLAR TEETH AND OTHER REMAINS OE MAMMALIA. 
39 
The jaw" is slender, arcuated, and tapering ; the alveoli for the teeth are wide, 
the jaw contracting suddenly in width below the alveoli. The dimensions of the 
specimen are as follows : — 
Length of fragment ... 
In. 
... 4-8 
Depth of jaw 
... 1-9 
Thickness of jaw 
. 1-5 
Length of two molars ... 
... 3'8 
Ditto of second molar 
l'4c 
Width of ditto ditto ... 
... 1-0 
The specimen is distinguished from the molars of Sivatherium, not only by 
its very much smaller size, but also by the peculiar form of the inner border of the 
crown surface, and by the presence of the cingulum and the tubercle at the entrance 
to the median valley. 
The molars approach nearest in form to those of Camelopardalis, which they 
resemble in the obliquity of their position in the jaw, and in the prominence on the 
inner border of the crown of the postero-internal angles of the barrels : they, how- 
ever. differ from the molars of Camelopardalis by the presence of the cingulum, 
and by the presence of the large pointed tubercle at the entrance to the median 
valley in both the molars ; the molars of Camelopardalis have no cingulum, and the 
first molar only has a small and blunt tubercle at the entrance to the median valley. 
The costse on the inner side of the teeth have the same form in both the genera. 
The molars of the present form are nearly half-an-inch longer than those of any 
described species of Camelopardalis, and their enamel is much more corrugated. 
The depth of the present jaw at the second molar is half-an-inch greater than in 
Camelopardalis giraffa, but the jaw is of a more slender type than in the latter 
genus ; in C. gira ffa, and C. sivalensis, the depth of the jaw at the second molar is 
equal to the length of the second molar plus the length of the hinder barrel of the 
first molar ; in the present specimen the corresponding tooth is one-third of an 
inch longer than the depth of the jaw at the same point. 
The molars are distinguished from those of Bramatherium by their smaller 
size, by the presence of the cingulum and accessory tubercle, and by being placed 
more obliquely in the jaw. 
Till the cranium be discovered, it is difficult to say whether this extinct form 
of Buminant was most nearly allied to Sivatherium or to Camelopardalis ; the pro- 
portions and curve of the jaw are most like those of the former genus, and the teeth 
are intermediate in size and form between those of both genera. The jaw is some- 
what more slender than that of the 8iwalik C. giraffa, and thereby approaches to 
the living species of the genus. 
Genus Camelopaudalis. 
Eossils of this genus have been described from the Siwaliks of India, from 
Perim Island, from the Upper Miocene of Attica {see Compt. Rendus, vol. Lll, 
( 57 ) 
