SIWALIK AND NARBADA CARNIVORA. 
41—218 
Length of last three cheek-teeth 
>> >> P m - 4 
Dimensions of ™. 1 
Length of m- 2 
.0-46 
0-66X0-59 
U. namadicus. 
. 2-44 
0-65 
0- 74X0-71 
1- 06 
The living species is also distinguished by the minute size of pm. 3 , and the 
relatively small size of pm. 4 , and by the tubercle of this tooth being placed in the 
middle of the inner side. The two nearly agree, however, in the proportionate 
width of m. 1 . 
In U. ornatus the whole molar dentition is much smaller ; m.2 is relatively much 
narrower, as is shown by the following measurements, viz. : — 
Length of last three cheek-teeth 1-75 
,, „ pm. 4 0-4 
Dimensions of “J . . . . . 0-65x0"46 
Length of mjj 0-74 
The tubercle of pm. 4 is also placed in the middle of the inner side. 
Ursus spelceus is sufficiently distinguished from the fossil by its vastly superior 
size, and the greater complexity of the surface of the crowns of the molars. 
The other species mentioned in the foregoing list are not sufficiently well known 
to admit of comparison with the fossil, and unless it should be the same as any of 
these, it seems that the latter is entitled to rank as a distinct species, for which the 
name of U. namadicus may be retained. As far as can be judged from the extremely 
imperfect remains at present available, that species seems on the whole to have 
approached nearest to Ursus malayanus , but is distinguished by its superior size, and 
the form and relative dimensions of pm. 3 , pm. 4 , and m. 2. It is impossible to say 
at present whether or no the one form may be regarded as on the direct line of 
descent of the other. 
Canine tooth.— In the Indian Museum there is the canine tooth of a bear 
obtained by Mr. Hacket, of the Geological Survey, from the Narbada beds, which 
may possibly belong to the present species. 
Tibia . — In figures 3, 3a, of plate XXIX. of the present memoir 1 there are given 
two views of the left tibia of a bear from the Narbada beds, presented by Mr. C. 
Frazer to the British Museum (No. 39,729). The specimen is drawn of one-third 
the natural size, and is viewed in figure 3 from the anterior, and in figure 3a from 
the distal aspect. In point of size the specimen might well belong to the present 
species. The collection of recent osteology in the British Museum being at the time 
of writing this passage inaccessible, it has not been found possible to compare the 
fossil with the tibias of recent bears. 
Distribution . — All the remains which can at present be assigned to Ursus namadicus 
have been obtained from the pleistocene Narbada beds. 
