39—73 
SIWALIK AND NARBADA BUNODONT SUINA. 
jaw belonged to a female. In the following table the dimensions of this specimen 
and of the two mandibles of males are compared with those of the mandible of a 
male of 8. cristatus ; viz . : — 
Length of three true molars . 
Specimens. 
r- 
Male.^ Female. 
3-8 3-5 
S. cristatus. 
3-1 
,, ,, five last cheek-teeth 
5-0 
4-7 
4-08 
Width of symphysis between external borders of alveoli of canines . 3 ‘4 
2-42 
2-7 
Interval between canine and pm. 2 
1-9 
1-2 
1-26 
Length of symphysis 
3-9 
3-47 
3-2 
3-1 
Height to summit of m. 3 
2-66 
2-67 
,, ,, alveolus of i. 2 
1-18 
1-6 
Length of m. 1 
0-5 
0-65 
Width ,,,,,, 
0-57 
0'69 
Length „ „ 2 
1-08 
1-05 
11 
0 88 
Width „ „ „ . 
0-72 
0-69 
0-7 
0-6 
Length ,, „ 3 
2-04 
1-94 
1-95 
1-65 
0-86 
0-76 
0-76 
0-7 
Long diameter of canine 
1-2 
0-6 
0-93 
Intermolar space at m. 3 
1-6 
1-12 
1*4 
The complex pattern on 
its worn surface. 
and the elongated 
shape of 
m. 3 of the 
female jaw, clearly indicate that this specimen should be referred to the present 
form. It will be seen from the measurements that the superior surface of the 
extremity of the symphysis is much lower in the present specimen relatively to the 
detrital plane of the cheek-teeth than in the jaw of S. cristatus] the inferior border 
of the symphysis also forms a much less marked angle with the inferior border of 
the horizontal ramus, although this feature is somewhat exaggerated in the figure in 
the “ F.A.S.” These features are evidently in correlation with the deflection of the 
premaxillary region of the cranium of the present species. The cheek-teeth of the 
female jaw are relatively rather longer than in that of the male, and the intermolar 
space is somewhat less ; both these characters corresponding with those prevailing in 
the crania. It will be seen that pm. 3 and pm. 4 are narrow teeth like those of existing 
pigs ; the latter wanting the distinct inner column which occurs in the corresponding 
tooth of 8. titan («, fig. 4), and being widely different from the same tooth in the jaw 
referred to 8. giganteus (plate XL, fig. 1) : pm. 3 is inserted by two roots only, and is 
therefore quite different from the same tooth in the latter jaw. The characters of 
the true molars will be best gathered from the specimens described below. 
Lower molars . — In plate VII., fig. 2, of the present volume there is rejoresented 
from the masticating aspect a fragment of the right ramus of the mandible of a pig 
formerly in the collection of the Asiatic Society of Bengal, which was obtained by the 
late Sergeant Dawe from the Siwaliks of the neighbourhood of Nahan. It is 
described by Falconer^ in the following words : — “ Sus ; Fragment of lower jaw, 
right side, comprising posterior part of horizontal ramus, broken across horizontally 
near the base of the teeth, and containing the last two molars, the penultimate well 
worn, with very flexuous enamel ; the last molar in germ and of very large size.” 
1 The specimen in the first column is the British Museum, and that in the second Baker and Durand’s specimen. 
2 Vide “ Pal. Mem.,” vol. I., p. 513, note (No. 319). 
K 
