Xli SYSTEMATIC INDEX. 



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 Family TYPOTKERIIMl 170 



Typotherium cristatum 171 



Suborder CONDTLARTHEA 172 



Family PERIPTYCHID^E 172 



Periptychus rhabdodon 174 



fiaploconus lineatus 175 



Suborder AMBLTPODA 175 



Section C OK YPHODONTI A 176 



Family CORTPHODONTID^E 176 



Coryphodon eocaenus 178 



Section DINOCERATA 179 



Family UINTATHERIID^E 179 



Tinoceras ingens 181 



longiceps 181 



Dinoceras laticeps 182 



mirabile 182 



