TAB. XXIV. 

 CORALS FROM THE GREAT OOLITE. 

 COMOSERIS VERMICULARIS (p. 122). 



Fig. 1 . Calicular surface of an adult specimen ; natural size. 



1 a. A part of the same magnified. 



ISASTREA SERIALIS (p. 116). 



Fig. 2. Calicular surface of a fragment ; natural size. 



2 a. Calices, magnified. 



IsASTREA EXPLANULATA (p. 115). 



Fig. 3. A specimen, showing the calicular surface in different degrees of preservation ; 

 natural size. 



3 a. Calices, magnified. 



IsASTREA LIMITATA (p. 114). 



Fig. 4. A fragment, showing the calices in different states of preservation ; natural 

 size. 



4 a. Calices, magnified. 



5. Horizontal section of a specimen, in which the visceral chambers had been 

 filled up with white calcareous matter. 



