SI W ALIK AND NARBADA CARNIVORA. 
119—296 
The accompanying woodcut (fig. 14) shows two views of another hyaena’s 
ml pm. 4 pm. 3 mandible, in the British 
Museum, 1 showing a con- 
siderable part of the hori- 
zontal ramus of the right 
side, with pm. 3, pm. 4, and 
m. 1. This specimen is 
similar to the two last, and 
belonged to the same 
species : the cingulum is, 
however, developed along 
nearly the whole of the 
outer side of m. 1. The 
anterior vertical ridge of 
pmT3 is less strongly de- 
veloped than in H. felina. 
A second very similar speci- 
men in the British Museum 
(No. 16,526), exhibits the canine and the last three premolars, and is figured in 
supplemental plate L, figure 9, of the “ F.A.S.” 
In the following table the dimensions of the four specimens mentioned above 
are compared with those of the five mandibles referred to II. felina. 
Fig. 14. Hycena colvini, nobis. Part of right ramus of a mandible, 
from the Siwaliks ; in the British Museum (No. 16,578). From the 
external and superior aspects. 
Present species. 
Hyaena felina. 
o' I s‘ s' sf o a : . ^ 
I 1 $ I I I I I t | 1 1 
I I 1 I 3 I I I 
Length of series of cheek-teeth 
Depth 
Interval 
3 
0- 91 
1 - 12 
0-58 
0-76 
0-84 
3-18 
0 , 62 
0-75 
0-82 
3-18 
0-65 
0-85 
0-92 
0- 78 
1- 03 
1-04 
1-56 
0-39 
It will be seen from these dimensions that in the specimens under consideration 
m. i is longer in proportion to pm. 4, than in II. felina ; the differences in three 
specimens of the former being respectively 0-30, 0-29, and T21 ; and in four of the 
latter 0T9, 0T5, 0T3, and 0T2 ; giving means of 2-66, and T47. Similarly in the 
former the jaw is relatively less deep than in the latter ; the respective means being 
T3 and T72. The diastema is also smaller in the specimens under consideration. 
These mean differences, coupled with the differences in the form of the earlier 
premolars, and the presence of the cingulum to m. 1 in the specimens under 
consideration, leave little doubt that the latter are specifically distinct from the 
i Also figured in supplemental plate L, figs. 8, 8a, of the “ F.A.S.” 
