SYSTEMATIC INDEX. 



[Existing species are denoted by an asterisk.] 



Page 

 Ordinal position uncertain. 



Group TlLLODONTIA 1 



Family ANCHIPPODONTID^E 1 



Anchippodus riparius 2 



Family PLATYCHCEROPID^E 3 



Platychcerops richardsoni 4 



Order SIKENIA 5 



Family HALITHEKHMl 5 



Halitherium f orestii 5 



fossile 6 



canhami 7 



schinzi 7 



-sp 12 



Prorastomus siren oides 12 



Eotherium agyptiacum ...... 13 



Family RHYTINID^E 15 



Ehytina gigas 15 



TAKT v. b 



