NEW GENERA OF rALEOZOIC RUGOSE CORALS 



211 



This form would be excluded from Zaphrentis on account 

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

 similar to Olisiophyllum, but is without the peripheral 

 zone of cysts, characteristic of that genus. 



30 



"Fig. 30 Scenophyllum conigerum Romimjer. A loDgitiidinal 

 section showing the conical subcystose tabulae, and pseudocolumella 



