SYSTEMATIC INDEX. 



[Existing species are denoted by an asterisk.] 



Page 

 Ordinal position uncertain. 



Group TiLLOBONTIA 1 



Family ANCHIPPODOIS'TID^ 1 



Anchippodus ripariiis 2 



Family PLATYCHCEEOPID^ 3 



Platychoerops richardsoni . 4 



Order SIEENIA 5 



Family HALITHERIID^ 5 



Halitherium forestii ....;.. 5 



fossile 6 



canhami 7 



schinzi 7 



-sp 12 



Prorastomus sirenoides 12 



Eotherium aigyptiacum ...... 13 



Family EHYTINID^ 15 



Rhytina gigas 15 



TAKT V. 



6 



