xl 
SYSTEMATIC INDEX. 
Family COCHLIODONTIDiE {continued). 
Page 
Sandalodus complanatus.189 
Tomodus.191 
-eonvexns.191 
Xystrodns.192 
--striatus.193 
-yerus.194 
-(?) egertoni.194 
Deltodus.195 
-sublsevis.196 
-gibbus.197 
-rugosus.198 
-concha.198 
-oecidentalis.199 
-spatulatus.199 
Poecilodus.201 
-jonesii.202 
-gibbosus.204 
Cocbliodus.205 
-contortus.206 
- latus.208 
Streblodus.209 
-oblongns.209 
-colei.210 
—— egertoni . 211 
Deltoptychius.212 
-acutus.212 
-gibberulus.214 
Diplacodus.216 
-bulboides.216 
Cyrtonodus.216 
-hornei.216 
Family CESTRACIONTIDiE.229 
Orodus.230 
-cinctus.230 
-ramosns.231 
