SUCCESSION OF SPECIES OF CORA.L ZOOPHYTES. 149 



pora, and other genera of calcareous Anthozoa of the 

 present day, so these, in all probability, are destined 

 to give way in their turn to new forms of essentially 

 analogous Zoophytes, to which in time to come the 

 same great office will be assigned, of clothing with 

 fertile limestone future rising continents." 



