81 



Incertce sedis. 



Bramatherium Falc. and Cautl. 



SUPEB-FAMILY 1 HELLADOTHEEOIDEA. 

 XXXVI. HELLADOTHERIIDAE. 



Extinct. 

 Helladotherium Gaudry. 



SUPER-FAMILY OREODONTOIDEA. 

 XXXVII. OREODONTIDAE. 



Extinct. 



A. Orbit complete behind. Lachrymal bone impressed by a well-marked 

 fossa, (Leidy.) 



OREODONTINAE. (A.) 



B Orbit incomplete behind. Lachrymal bone with no fossa. (Leidy.) 



AQRIOCHOERIDAE. (B.) 

 A. OREODONTINAE. 



Oreodon Leidy =Merycoidodon Leidy =Cotylops Leidy. {Fide Leidy.) 

 Merycochoerus Leidy. 

 Merychyus Leidy. 

 Leptauchenia Leidy. 



B. AGRIOCHOERIDAE. 



Agriochoerus Leidy. = ? Eucrotaphus Leidy. 



SUPER-FAMILY ANOPLOTHERIOIDEA. 

 XXXVIII. ANOPLOTHERIIDAE. 



Extinct. 



Anoplotherium Cuv. 

 Eurytherium Gervais. 



XXXIX. DICHOBUNIDAE. 



Extinct. 

 (Genera fide Turner.) 



Caenptherium Bravard=(?pZo</jertm Laiz. and de Par. 

 Dichodon Owen. 

 Dichobune Cuv. 

 Xiphodon Cuv. 



Anoplotheroidea? incerttx sedis. 

 Tapinodon v. Meyer, 1846. 

 Choereomeryx Pomel, 1848. 



Aphelotherium Gervais. 



February, 1872. 



