LEPORINE HYRACOTHERE. 



423 



dentia. Without intending to imply that the present 

 small extinct Pachyderm was more closely allied to the 

 Hyrax than as being a member of the same order, and 

 similar in size, I have proposed to call the new genus which 

 it unquestionably indicates, Hyracotherium, with the spe- 

 cific name leporinum. The form and structure of the 

 molar teeth determine this interesting extinct genus to 

 belong to the same natural family of the Hog tribe, as 

 the Cho3ropotamus. 



From the same deposits at Herne Bay, Mr. Richardson 

 obtained two small dorsal vertebrae, referable by the capacious 

 canal for the spinal marrow (fig. 169) and the articular 

 cavity for the head of the rib, excavated on opposite 

 surfaces of the two vertebrae (fig. 168, c), to the Mammife- 

 rous class. Their size is that which might be expected in 

 the dorsal vertebrae of the skeleton of the Hyracotherium 

 leporinum, and, as there is no character which forbids their 

 reference to a small Pachyderm, allied to the Peccari, they 

 may very probably belong to the same species as the fossil 

 skull which was discovered at the same place. 



Fig. 168. 



Fig. 169. 



Dorsal vertebrae, nat. size. Eocene clay, Herne Bay. 



