83 



.2. 



Potamochoerus Gray= Choiropotamus Gray. 

 Sus Linn. 



Sus Gray. Scrofa Gray. 



Centuriosus Gray=Gyrosus GTa,y=Ptychochoerus Fitz. 

 Porcula Hodgson. 



Extinct genus incertce sedis. 

 Hippohyus Falc. and Cautl. 



XLIV. DICOTYLIDAE. 



Genera. 



Dicotyles Cuv. 

 Notophorus Gray. 



Extinct. 



Platygonus Lee., Leidy.= Hi/ops Leu.=Protochoerus Lec.=Euchoerus Leidy. (Fide 

 Leidy.) 



SUPER-FAMILY ANTHRACOTHEKOIDEA. 

 XLV. ANTHRACOTHERIIDAE. 



Extinct. 



SUB-FAMILIES. 



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

 and with tubercles in transverse series f-j --) 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. 



ANTHRACOTHERIINAiE. (B.) 

 A. HYOFOTAMINAE. 



Hyopotamus Owen. 



Bothryodon Aymard=.4ttco<ius Pomel. 



B. ANTHRACOTHERIINAE. 



Anthracotherium Cuv. 

 Elotherium Pomel. 



EXTINCT OMNIVORAT INCESTS SEDIS. 



Choeropotamus Cuv. 



Palaeochoerus Pomel = Cyclognathus Croizet = Braclujynatltus Pomel = Synaplwdus 



Pomel. 



Choeromorus Lartet. 

 Entelodon Aymard. 

 Heterohyus Gervais. 

 Acothemlum Gervais. 

 Choerotherium ~FalG. = Tetraconodon Falc. 



