SIWALIK AND NARBADA PROBOSCIDIA. 
3—184 
is nearly perfect, while the other has been considerably chipped. The worn summits 
of the transverse ridges of the hinder molar (right side of figure) are lowest on 
the lower border of the figure ; this border will consequently be the outer 
side of the specimen, which will, therefore, belong to the left ramus of the 
mandible. 
Since the hinder molar exhibits no disc of pressure on its posterior surface, and 
since both teeth carry two main ridges only, it is evident that these two teeth are 
the two last of the permanent molar series, and that consequently the individual to 
which they belonged was fully adult at the time of its death. The anterior ridge 
of the hinder molar, which, as being the more perfect of the two teeth, is here 
selected for description, is concave anteriorly and nearly straight posteriorly ; the 
plane of wear of both this and of the second ridge slopes towards the hinder 
extremity of the jaw ; the second or hinder ridge is concave on the inner half of its 
anterior sm’face, and convex on the outer half ; its posterior surface is nearly straight, 
with slight undulations. In the valley between the two main transverse ridges 
there is a projecting spur given off from the hinder ridge, passing obliquely 
inwards and forwards. In a later state of attrition than the specimen exhibits, as 
in the anterior molar (left side of figure), this intermediate longitudinal spur would 
display a worn dentine surface, which would ultimately form a narrow bridge of 
dentine connecting the dentine surfaces of the two transverse ridges. There is a small 
tubercle on the outer side of the main transverse valley. At the posterior extremity 
of each tooth there is a large talon-ridge, broader at its outer than at its inner extrem- 
ity, and about half the width of the anterior main ridge ; there is a slight trace of a 
cingulum on the outer surface of this talon, as is well seen in the anterior tooth ; 
eventually the talon-ridge becomes worn down, and forms a part of the grinding 
surface of the tooth. Each tooth is implanted in the jaw by three distinct fangs ; 
two small ones at the anterior extremity, and a larger and laterally compressed one 
at the posterior extremity. 
The Indian Museum has obtained recently, through exchange with the Lahore 
Museum, two last lower molars of the same species of Dmotheriimi. These two 
teeth agree precisely in every detail with the figured specimen. They a23pear to 
have been obtained from the Siwaliks of Shaik Budm, on the north-west frontier of 
the Punjab. A similar specimen has also been presented to our collection by the 
Roorkee (Rurki) Museum, which seems to have been obtained near Roorkee itself — 
very possibly low down in the Siwalik series, as it carries fragments of a red matrix 
like that of theNahan (lower Siwalik) rocks. 
The second specimen which I have figured (Plate XXIX, figs. 2 and 3) appears 
to have come from Siwalik beds at Kushalghar, near Attock, where it was obtained 
many years ago by the late Lieutenant Garnet ; these beds are probably somewhat 
older than the general mammaliferous zone of the Siwaliks and the representative 
of the Nahan rocks. As I have already observed in the above-quoted passage in tlie 
“ Records,” the figure of this specimen given by Dr. Murchison in the “ Palseonto- 
