XXX 
SYSTEMATIC IN'HEX. 
ICHTHYODORULITES (continued). 
Pago 
Stichacanthus.133 
-coemansi.133 
-tortworthensis.134 
Oracanthus.135 
-milleri.135 
-pnstulosus.138 
-pnigcus.138 
Gyraeanthus . 139 
- formosus.140 
Aganacanthus.145 
Erism acanthus.140 
-jonesi. 140 
-- major.147 
Lis t racan th us.148 
Bvssacanthus. 149 
■-crcnulatus.]49 
Edcstus.151 
-hcinrichsi.152 
-minor.153 
-davisi.153 
Cynopodius.154 
-crenulatus.154 
Euctenius.155 
-unilateralis.155 
Family CCELOLEPIMS.157 
Ccclolepis 158 
Thelodus. 158 
-parvidens.158 
Subclass OSTRACODEEMI.159 
Order HETEKOSTKACI .159 
Family PTEEASPIDJE.159 
Pteraspis.100 
