NEW GENERA OF PALEOZOIC RUGOSE CORALS 



211 



This form would be excluded from Z a p h r e n t i s on account 

 of its' conical tabulae and spirally twisting septa. It is very 

 similar to Clisiophyllum, but is without the peripheral 

 zone of cysts, characteristic of that genus. 



Pig. 30 S c e n o p h y 1 1 u m c o u i g e r u m Roming&r. A loiigitiulinjil 

 section showing the conical subcystose tabulae, and pseiidocolumella 



