SIWALIK AND NARBADA CARNIVORA. 
5—182 
that of a male, also shows that the fronto-parietal region is flatter and more 
depressed, and the sagittal crest wider and 
stouter than in the living species : the latter 
character is also partly shown in the figures 
of the British Museum specimen. The larger 
size of the canines in the fossil, mentioned by 
Messrs. Baker and Durand, is not so well 
marked, as was at first supposed. In the 
fossils, pm. 2 and pm 3 are slightly larger than 
in the recent form. The true molar ( m. 1 ) 
of the former differs from that of the latter 
by being much less expanded at its inner 
extremity. 
Mandible . — In their memoir Messrs. 
Baker and Durand figured a nearly complete 
ramus of the mandible of a Siwalik ratel, 
which is now in the Dublin Museum. Of 
this specimen the dental aspect is represented 
in the accompanying woodcut (fig. 1, b). From its size and mineralogical character 
this specimen probably belonged to the same individual as the skull in the same 
collection. Speaking of this jaw Messrs. Baker and Durand remark that the 
measurements of the “recent and fossil jaws exhibit no difference save in the canine 
teeth, which severally correspond with the same teeth in the upper jaw. There is, 
however, in the fossil a deep depression in the ramus, which in the recent species is 
nearly flat.” The depression alluded to is the masseteric fossa, which in the fossil is 
narrow and well defined, but in the recent species broad and indistinct. The most 
important distinctive point of the fossil is, however, the disposition of the cheek- 
teeth, which in place of forming a nearly straight line, in continuation of the canine, are 
convex externally, the canine being placed on the inner side of the line : this is in corre- 
lation with the lesser inclination of the line of the upper cheek-teeth, noticed by 
Messrs. Baker and Durand. In most other respects the form of the recent and fossil 
jaws is exceedingly alike : their dimensions are compared in the following table : — 
Fossil. Recent. 
a. d. 
Fig. 1. Mellivora sivalensis, (F. and C.) The 
right half of the palate (a), and the left ramus 
of the mandihle (b) : from the Siwalik specimens 
in the Dublin Museum : nat. size. 
Length from condyle to anterior border of canine! 
,, ,. ,, ,, hinder ,, „ m. l 
Space occupied by cheek-teeth and canine 
Interval between hinder border of mTl and canine 
Depth at m. 1 
Length of pm. 2 
„ „ „ 3 
„ „ ,, 4 
,, ,, m. 1 
3-2 
1-48 
1-77 
1-42 
0-67 
0-22 
0-32 
0-38 
0-53 
col’o nostra. R.C.S. 744. R.C.S. 722. 
3.28 
1-45 
1-85 
1-46 .. 1-28 .. 1-42 
0-68 
0-21 .. 0.22 .. 0-2 
0-29 .. 0-26 .. 0-28 
0-39 .. 0-38 .. 0-44 
0-59 .. 0-54 .. 0-59 
Antero -posterior diameter of canine 
0-39 
0-38 
0-32 
0-38 
i The specimen has now lost the condylar portion, as also the crown of the canine, which is complete in Baker and 
Durand’s figure. Somewhat similar damage has befallen the Dublin skull. 
B 
