DESCRIPTION OF PLATES. 105 
Figs. 2, 2a, and 2b.—Equus Sivalensis. Fragment comprising 
posterior portion of skull, broken off in front in a line with anterior 
angles of zygomatic arches. Shows occipital foramen, crest, condyles, 
and posterior roots of zygomata.—B.M. 
Length of fragment, 7°5in. Height of occipital facet from lower border of 
occipital foramen to summit of occipital crest, 4:8 in. Between inferior angles of 
occipital crest, 4°7 in. Breadth of cranium between roots of zygomata, 3-7 in. 
Length of ridge of occipital condyle, 1:7 in. Height of condyle (greatest), 2°1 in. 
Between inner margins of condyles, 1-5in. Height of occipital foramen, 1°6 in. 
Fig. 3.—Kquus Sivalensis. Fragment of upper jaw, with whole 
series of six molars.—B.M. 
Length of fragment, 9°3in. Height of fragment (length of molar), 4:1 in. 
Length of molar series, 77 in. Length of three true molars, 3°-4in. Breadth of 
alveoli, 1°3 in. 
Fig. 4.— Equus Sivalensis. Fragment of horizontal ramus of lower 
jaw with whole series of six molars.—B.M. 
Length of fragment, 11‘in. Depth of jaw at anterior border of fourth premo- 
lar, 36in. Width of ditto, 1°2in. Length of molar series, 7‘8in. Length of 
three true molars, 3°7 in. 
Figs. 5,5 a, 56, and 5c.—Kquus Namadicus (Fale. and Caut.), 
from the Nerbudda Valley. The occipital condyles and foramen and 
the left zygomatic arch are very perfect; also the whole series of six 
molars on left side. The specimen is broken off in front of first 
(permanent) premolar on left side; from this the line of fracture passes 
obliquely across the palate and through the middle of the hindmost 
right premolar. ‘The three right true molars are present. The right 
zygomatic arch is absent.—B.M. 
Extreme length of fragment, 17°6in. From lower border of occipital foramen 
to posterior border of palate, 9°6in. Greatest breadth of eranium at roots of zy- 
gomatie processes, 441n. Between extreme points of zygomata, 7-9 in. Between 
anterior angles of orbits, 6°in. Height of cranium from palate at fractured 
extremity, 3°6 in. Great diameter of orbit, 2°8 in. Lesser diameter of orbit, 
18in. Height of occipital facet from lower border of occipital foramen, 4-2 in. 
Between inferior angles of occipital facet, 4:1 in. Depth of zygomatic fossa, 1°7 in. 
Width of palatine notch, 1:7in. Width of palate posteriorly, 3-in. Width of 
palate anteriorly, 2°7in. Width of alveoli, 1-lin. Length of molar series, 7: in. 
Length of true molars, 3°3 in. 
Fig. 6.—Equus Namadicus. Fragment of left upper jaw comprising 
whole molar series.—B.M. 
Length of fragment, 9°2in. Length of molar series, 7*-in. Length of three 
true molars, 3°2in. Breadth of alveoli, 1:2 in. 
Fig. 7.—Equus Namadicus. Fragment of left lower jaw with entire 
molar series. The fracture exposes the fang of the last true molar.— 
B.M. 
Length of fragment, 12°7in. Depth of jaw at anterior border of fourth pre- 
molar, 3°8in. Width, 1-2in. Length of molar series, 8°-in. Length of three 
true molars, 3°8 in. 
Puate LXXXII. 
Fig. 1.— Equus Sivalensis. Upper jaw, right side, with entire molar 
series. —B.M. 
Length of third molar, 1:16in. Breadth of ditto, 1:03in. Length of second 
molar, 1:16in. Breadth of ditto, 1:2in. Length of first molar, 1:16in. Breadth 
