DESCRIPTION OF PLATES. 83 



Figs. 14 and 14a. — Hippopotamus (Tetrcqwotodon) ampliibius. 

 Upper canine, truncated in front, with reniforru outline on section. 



Fig. 15. — Merycopotamus dissimilis. (Falc. and Caut.) Lower jaw, 

 right side, with three molars, four premolars, portion of canine, and 

 alveoli of incisors. The teeth exhibit a ruminant-like pattern of wear 

 in the crown which is characteristic of the genus. 



Fig. 16. — Merycopotamus dissimilis. Lower jaw, right side. Larger 

 specimen than fig. 15, with three molars, fourth molar, and canine. 

 The alveoli of three anterior premolars and three incisors are seen. 

 — B.M. 



Figs. 17 and 17 a. — Merycopotamus dissimilis. Molars showing well 

 the rugous surface of the enamel, the basal cingulum, and the rumi- 

 nant-like pattern of wear characteristic of the genus. — B.M. 



Fig. 18. — Merycopotamus dissimilis. Molar. 



Figs. 19, 19 a, and 19 b. — This tooth was found in the Kalowala 

 Pass by Capt. (now Sir Proby) Cautley, and is figured by Royle in 

 ' Illustrations of Botany of the Himalayah Mountains ' (vol. ii. Plate 

 III. figs. 12, 13, 14, and 15), as the tooth of an Anthracotherium. In 

 several of Dr. Falconer's published papers reference is made to the oc- 

 currence of Anthracotherium among the Sewalik fossils (See Synopsis 

 of Sewalik Fossils, in Journ. As. Soc, vol. iv. p. 706, and first paper 

 on Monkey, Geol. Trans., vol. v. 2nd series, p. 503 ; and also note, p. 88.) 

 The specimen, however, is not named on the Plate, and differs from 

 Anthracotherium. — B.M. 



Plate LXIII. 

 Vertebrae of Hippopotamus (Hexaprotodoii) Sivalensis. 



Figs. 1 and 1 a. — Seven cervical vertebra? in position, viewed an- 

 teriorly and laterally. 



Figs. 2, 2 a, and 2 b. — Atlas. Upper, lower, and anterior views. 

 —B.M. 



Figs. 3, 3 o, and 3 b. — Atlas. Upper, lower, and lateral views. — 

 B.M." 



Figs. 4, 4 «, and 4 b. — Atlas. Upper, lower, and anterior views. — 

 B.M. 



Figs. 5, 5 a, 5 b, and 5 c. — Axis. Four different views. — B.M. 



Figs. 6, 6 a, 6 b, and 6 c. — Axis. Four different views. — B.M. 



Figs. 7, la. lb, and 7 c. — Axis. Four different views. — B.M. 



Figs. 8 and 8 a. — Ajxis. Anterior and lateral views. — B.M. 



Figs. 9 and 9 a. — Axis. Anterior and lateral views. — B.M. 



Figs. 10 and 10 a. — Axis? Upper and lateral views. — B.M. 



Figs. 11, 11 a, and 11 b. — Sixth ? cervical vertebra. Upper, lower, 

 and lateral views. — B.M. 



Figs. 12, 12 a, and 12 &. — Third cervical vertebra. Upper lower, 

 and lateral views. — B.M. 



