94 FAUNA ANTIQUA SIVALENSIS. 
Fig. 4, 4a, 4), and 4c.—Rhinoceros platyrhinus. Fragment show- 
ing anterior portion of lower jaw, with symphysis and four anterior 
molars, and a portion of fifth; also a small inner and large outer 
incisor on both sides. —B.M. 
Length of fragment, 13°5in. Breadth of symphysis, 5:7 in. Length of sym- 
physis inferiorly, 7-in. Depth of jaw, 47 in. Thickness of jaw, 3°3in. Length of 
four anterior molars, 7°4in. Between anterior premolar and external incisive al- 
veolus, 3°lin. Between incisive alveoli, -6in. Width between molars posteriorly, 
4-in.; ditto anteriorly, 3°4in. 
Figs. 5, 5 a, and 5 6.—Rhinoceros platyrhinus. Small fragment of 
lower jaw, with two molars.—B.M. 
Length of fragment, 6°7in.; greatest depth, 5-7 in.; Thickness, 3-2; length of 
molar, 3:lin.; breadth, 1:7 in. 
Figs. 6 and 6 a.—Rhinoceros platyrhinus. Fragment of molar.—B.M. 
Length, 2°3in. Width, 3-4 in. 
Figs. 7 and 7 a.—Rhinoceros platyrhinus. Molar. 
Length, 3-2in.; breadth, 2°8in.; height of crown, 3°1 in. 
Prats LX XII. 
Figs. 1, la, 1b, and 1e.—Rhinoceros Palwindicus. (Fale. and Caut.) 
Mutilated specimen of cranium. The zygomatic arches and the anterior 
portion of the palate are broken off. On the right side the three true 
molars and three posterior premolars are present; on the left there are 
three molars and oné premolar. All the teeth are much worn. The 
upper surface of the skull is very concave.—B.M. 
Length of fragment, 21°8in. Height of occiput (imperfect) from basilar process, 
8-lin. From occipital surface to posterior border of palate (imperfect), 12°5 in. 
Between mastoid angles, greatest diameter of occiput, 9°in. Transverse diameter 
of occipital foramen, 1°9 in. Vertical ditto, 1°3in. Breadth of cranium at anterior 
orbital angles, 8°7in. Between anterior angles of orbital margin, 3°9in. Between 
sub-orbital foramina (posterior border), 4°8 in. Chord of nasal notch, 4-5 in. Length 
of three true molars, 6"1 in. Length of three posterior premolars, 5-in. Width of 
palate between posterior molars, 2°2in. Ditto between second premolars, 2°6 in. 
Greatest width of alveolus, 2°8in. Length of palatine notch, 64 in. Width of 
ditto, 2°in. 
Figs. 2, 2a, 2b, and 2e.—Rhinoceros Sivalensis (Fale. and Caut.), 
from the Sewalik hills. Tolerably perfect specimen of cranium. The 
upper part of the occiput and the left zygoma are absent. The left 
maxilla shows three molars and three premolars, and also the alveolus 
of the first premolar. The teeth are well worn; the palate is narrow. 
The upper surface of the cranium is concave, and the tip of the nasal 
shows the gibbosity of the base of a very large horn. The species was 
evidently unicorned.—B.M. 
Extreme length of fragment, 22°5 in. From posterior plate of occipital condyles 
to anterior margin of first premolar, 20-4in. From lower border of occipital fora- 
men to posterior border of palate, 11:9in. Length of molar series, 11‘1in. Length 
of three true molars, 5°8in. Width of palate between posterior molars, 2°5 in. 
Width of palate at anterior angle of first premolars, 2-°2in. Greatest width of al- 
veoli, 2°6in.. Length of palatine notch, 5°3in. Width of ditto, 1‘9in. Between 
inner angles of articular surfaces for lower jaw, 3°2in. Between most distant 
points of zygomatic processes, 13-7 in. Depth of zygomatic fossa, 3:1in. Height of 
occiput (imperfect) from lower border of occipital foramen, 9: in. Between outer 
angles of occipital condyles, 4°8in. Between mastoid angles, or greatest transverse 
diameter of occiput, 86 in. Breadth of occipital foramen, 1‘7in. Height of ditto, 
