482 Eeport of the State Gteologist. 



Family Prasoporidae. 

 AspiDOPORA. Atactoporella. Homotrypella. 

 Prasopora. 



Family Calloporidae, Uliich emend. 



BaTOSTOMA. CaLLOPORA. DiKAYELLA. DiPLOTRYPA. 



? Idiotrypa. 



Suborder CTENOSTOMATA. 



Ascodictyum. Rhapolonaria. Yinella. 



UNCLASSIFIED. 

 Cyolopora. Proutella. 



