20 VERTEBRATA. 



FAMILY HIPPOPOTAMIDiE. 



No. 32. [79] Hippopotamus major, Cuv. 



Left Hind-Foot (cast). From the Plio- 

 cene Tertiary beds of Auvergne. The Hip- 

 popotamus major had peculiarities in its den- 

 tition which distinguished it from the modern 

 species, and it was also nearly twice as large. 



The foot of the Hippopotamus, with its four 

 functional toes is less specialized than that of 

 the Hog, its living ally, which has the two 

 lateral toes rudimental. The tarsus closely 

 resembles that of the Hog, and has seven 

 bones. The carpus has eight bones. 



This foot is quite perfect in preservation. 

 Size, 1 ft. 9 in. x 11 in. On pedestal. 



No. 33. [78] Hippopotamus major, Cuv. 



Right Tusk (cast). This tusk, from the right ramus of the lower jaw, is 

 of a size which marks it as belonging to an animal much larger than any 

 Hippopotamus of the present day. Size, following curve of tooth, 17 x 7. 



No. 34. [77] Hippopotamus 



Molar (cast). The crown of the tooth is divided into 

 two lobes by a wide transverse valley, and each lobe is 

 subdivided by a narrow antero-posterior cleft into two 

 half-cones with their flat sides next each other. Remains 

 of this interesting genus of pachj^derm animals have 

 been found in England, and very widely distributed 

 through both Europe and Africa. It does not seem, 

 however, in either of these continents to have visited 

 points as far to the north as did the Rhinoceros. 



No. 35. [74] Hexaprotodon Sivalensis, Falc. and Caut. 



Skull and Fragment of 

 Lower Jaw (cast). This ani- 

 mal was essentially a Hippo- 

 potamus, with six incisors, in- 

 stead of four, in each jaw. A 

 specific distinction is the short- 

 ness of the face. These remains 

 were found in the Pliocene of the Sewalik Hills, India, and belong to the 

 British Museum. Size, 24 x 16. 



