DESCEIPTION OF PLATE XII. 



Hippopotamus (Hexapeotodon) Sivalensis. 



Fig. 1. Right side of upper jaw oi Hippopotamus Sivalensis, showing 

 the three true molars, and the second, third, and fourth pre- 

 molars, one-half of the natural size. Copied from g, drawing by 

 Mr. Ford in Plate LXII., fig. 1, of the Fauna Antiqua Sivalensis. 

 (See page 136.) 



Fig. 2. Anterior portion of lower jaw o? Hippopotamus Sivalensis, show- 

 ing six horizontal incisors of nearly eqiial size, two canines, and 

 the anterior premolars, one-fourth of the natural size. Copied 

 from a drawing by Mr. Ford in Plate LXL, fig. 7, of the F. A. S. 

 The specimen is in the British Museum. (See page 136.) 



Fig. 3. Another view of same specimen taken from one side, showing 

 the peculiar curve upwards of the canines. 



Fig. 4. Descending process of ramus of lower jaw of Hippopotamus 

 Sivalensis, one-fourth of the natural size. Copied from a drawing 

 by Mr. Ford in Plate LXI., fig. 9, of the F. A. S. (See page 

 135.) 



