83 



2.2. 



Potamochoerus Gray= Choiropotamus Gray. 

 Sus Linn. 



Sus Gray. Scrofa Gray. 



Centuriosus Gra,y=Gyrosus Gray=Ptyc/toc/ioerMS Fitz. 

 Porcula Hodgson. 



Extinct genus incertce sedis. 

 Hippohyus Falc. and Cautl. 



Jf 



XLIV. DICOTYLIDAE. 



Genera. . 



Dicotyles Cuv. 

 Notophorus Gray. 



.Errtncf. 



Platygonus Lee., Leidy.=Hyops Lec.=Prooc/ioerus Lec.=Euchoerus Leidy. (Fide 

 Leidy.) 



SUPER-FAMILY ANTHRACOTHEROIDEA. 



XLV, ANTHRACOTHERIIDAE. 



Ettittet, 



SUB-FAMILIES. 



A. Premolars of upper jaw in part (PM 4) resembling the true molars, 

 and with tubercles in transverse series ( \ --) separated by transverse 

 vallies; the preceding (PM 3, 2, 1) successively more and more differ- 

 entiated forwards. 



HYOPOTAMINAE. (A.) 



B. Premolars (PM 4, 3, 2, 1) of upper jaw all differentiated from the true 

 molars, and each with a conical crown and a small inner lobe. 



ANTHKACOTHERIINAE. (B.) 

 A. HYOPOTAMINAB. 



Hyopotamus Owen. 



Bothryodon Aym&rd.=Ancodus Porael. 



B. ANTHKACOTHEKIINAE. 



Anthracotheriwn Cuv. 

 Elotherium Pomel. 



EXTINCT OMHTVORAT INCERTJE SEDIS. 



Choeropotamus Cuv. 



Palaeochoerus Pomel = Cyclognathus Croizet = Brachyynathus Pomel = Synaphodus 



Pomel. 



Choeromorus Lartet. 

 Entelodon Aymard. 

 HeteroJiyus Gervais. 

 Acotherulum Gervais. 

 Choer other ium T?a,lc. = Tetraconodon Falc. 



