E. LTDEKKEE ON THE GENUS MICEOCHCEEUS. 531 



Europe and that of the reputed equivalent strata of North America, 

 so remarkabl)^ exemplified by the occurrence in both of genera like 

 HycBiiodon^ Oxycena. Froviverra {Stypolophus), Elotherium, Ilyopo- 

 tamus, Corypliodon, Pacliynolophus and UyracotJieriiim (Orohijypus). 

 In conclusion it appears that Microchcerus erinaceus is by no means 

 an uncommon form in the Eocene of Hordwell, since the British 

 Museum possesses several fragments in addition to the type, and 

 there are several imperfect specimens of the upper and lower jaws 

 in the Woodwardian Museum at Cambridge. 



