LEPORINE HYRACOTHERE. 419 



PACHYDERMA TA . HYRACOTHERIUM. 



Skull of Hyracotherium leporinum, nat. size. Eocene clay. 



THE LEPORINE HYRACOTHERE. Hyracothe- 

 rium leporinum. 



Hyracotherium leporinum, OWBN, Geological Transactions, second series, 



Tol. vi. p. 203. 



THE fresh-water eocene marls of the Isle of Wight 

 appear to be much richer in mammalian remains than 

 the contemporaneous formation called the London clay; 

 here, however, certain genera, as Lophiodon and Paleeo- 

 tJierium^ have been found which exist in the eocene 

 gypsum in France, and the remains of which also occur in 

 the fresh-water marls of the Isle of Wight ; and the 

 interesting fossil to be described in the present section, 

 although it indicates a genus not hitherto found in the 

 older tertiary beds on the Continent, demonstrates the 

 extinct quadruped of which it formed part to have been as 

 distinct, generically, as the Anoplotherium or Paleeotherium, 



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