108 FAUNA ANTIQUA SIVALENSIS. 
Figs. 15, 15 a, and 15 b.—HHippotherium Antilopinum. Symphysis of 
lower jaw, with fragments of six incisors.—B.M. 
Length of fragment, 2°2in. Breadth at anterior angles of canines, 1°6 in. 
Length of fragments of three incisors of one side, 95 in. 
Fig 16.—Hippotherium Antilopinum. Portion of skull, with palate. 
Shows three true molars and third (permanent) premolar on both sides, 
and portion of second premolar on right side.—B.M. 
Length of three true molars, 2°5in. Length of three true molars, including 
last premolar, 3°36 in. Width of palate posteriorly, 2*in. Width of palate be- 
tween third premolars, 1°9in. Length of third molar, °85in. Breadth of ditto, 
‘75in. Length of second molar, ‘8in. Breadth of ditto, *85in. Length of first 
molar, ‘8in. Breadth of ditto, ‘9in. Length of third premolar, ‘9in. Breadth 
of ditto, *9 in. 
Fig. 17.—Hippotherium Antilopinum. Portion of molar, showing 
plication of enamel.—B.M. 
Leneth of fragment, *75in. Breadth, -45 in. 
Fig. 18.—Hippotherium <Antilopinum. Molar, with characteristic 
plication of the enamel, like that shown in fig. 19.1 
Length of grinding surface, ‘85in. Greatest breadth of ditto, *85 in. 
Fig. 19.—Hippotherium gracile (of Europe). Molar, with charac- 
teristic plication of enamel. 
Greatest length of grinding surface, 1:03 in. Greatest breadth of ditto, ‘975 in. 
Puate LXXXIIL. 
Figs. 1 to 11.—Equus and Hippotherium. 
Figs. 1, 1 a, 1, and 1 e.—Atlas.—B.M. 
Extreme width, 4°5in. Length of inferior arch, 1-4in. Height of spinal canal 
anteriorly, 1-5 in. Width of ditto, 1°7 in. 
Figs. 2, 2 a, 2 b, and 2 c.—Axis.—B.M. 
Extreme length of body, 4:1in. Length of spinal platform in centre, 2°5 in. 
Width across posterior articular processes, 2°8 in. 
Figs. 3, 3 a, 3b, and 3 c.—Cervical vertebra.—B.M. 
Extreme length of body, 4-4in. Between extremities of oblique processes, 
4-5in. Width between posterior oblique processes, 2°6 in. 
Figs. 4, 4a, 40, and 4 c.—Cervical vertebra. —B.M. 
Extreme length between extremities of oblique processes, 4*in. Width of 
spinal platform in centre, 17 in. 
Figs. 5, 5 a, 5b, and 5 c.—Cervical vertebra.— B.M. 
Extreme length of body, 4°3 in. 
Figs. 6, 6 a, 6b, and 6 e.—Dorsal vertebra.—B.M. 
Length of spme (fractured), 6°5in. Length of body, 2:2in. Width between 
transverse processes, 3°8 in. 
Fig. 7.—Portion of pelvis, showing acetabulum.—B.M. 
Chord of acetabulum, 2°4 in. 
1 This specimen somewhat resembles | and described by Dr. Falconer in same 
that figured by Messrs, Baker and Durand | volume, p. 58. 
in Journ. As. Soc., vol. iv., Plate xlv., 
