SIWALIK AND NARBADA BUNODONT SUINA. 
29—63 
appears that the proportionate height at the orbit is somewhat less ; the orbit smaller, 
and placed less below the frontal profile ; and the interval between the zygoma and 
the molar alveoli much smaller. The anterior border of the orbit extends still 
farther over m. 3 in the present specimen than in S. giganteus. Although the occipital 
regions of both specimens are more or less damaged, and comparison is, therefore, 
difficult, it seems that the condylar region was decidedly more prominent in the present 
specimen. It is also not improbable that the pre-orbital concavity of the latter was 
smaller and shallower, although this cannot be certainly determined. The general 
form of the two crania is, however, very similar. The palate of the present 
specimen is unfortunately invisible. The dimensions of the Niki skull are as follows, 
viz .'. — 
Length from supra -occipital to incisors 
230 
Interval between ditto and angle of mandible 
8 0 
Width above orbits 
5-4 
Tiength of series of upper cheek-teeth 
7-3 
,, ,, exposed portion of lower canine 
2-5 
) ) j » ) j M ) » ) ) incisors . 
1-4 
Long diameter of upper canine 
1-25 
Depth of mandible at m. 3 
3-3 
Width of mandibular symphysis 
2-6 
Length of three true lower molars 
4-4 (?) 
)) !> m.i 
1.08 
)) ,, m. 2 . 
1-4 
Interval between pmTI and pmr2 
1-1 
Detached molars . — In plate VII., fig. 6, there is represented the unworn crown of 
a third right upper true molar of a large pig, collected by Mr. Theobald in the 
Siwaliks of Asnot, Punjab, which from its large size and comparatively simple 
structm'e may probably be referred to the same species as the specimens described 
above. The length of this tooth is 2-43 and its greatest width I'T inches; and, 
judging from the length of mTS, it indicates an individual somewhat larger than the 
one to which the mandible represented in plate VII., fig. 4, belonged. The four 
main columns of the crown are bold and distinct, and separated by very wide open 
valleys : the accessory columns (a, g, h) are also large, and are restricted to the 
median line. The talon is very short, its whole length being less than the interval 
between a and g : it consists of a central accessory lobe (a), and of a short semi- 
circular portion [h) immediately behind the latter. A very distinct cingulum, raised 
into a number of cusps, surrounds tlie anterior and inner sides of the crown, and 
coalesces posteriorly with the talon. The extreme shortness of the talon of this 
tooth is in harmony with the corresponding part of ih73, and indicates that the 
united length of m. 1 and m. 2 exceeded the length of the present tooth. 
Compared with of S. giganteus^ this specimen is distinguished by its vastly 
superior size ; its shorter and wider talon, the portion c being more developed 
laterally ; the wider and more open valleys, with the restriction of the accessory 
columns to the median line ; and lastly by the presence of the conspicuous cingulum. 
1 Plate XI , %. 2, and “P.A.S.,’' pi. LXXI., fig. 12. 
