TAB. XIII. 

 CORALS FROM THE CORAL RAG. 



Thecosmilia annularis (p. 84). 



Fig. 1. A group partly embedded in the stone ; natural size. 



1 «. A very young specimen ; natural size. 



\ b. A. calice becoming deformed ; from a young group. 



1 c. Fissiparous nuiltiplication of the calico in a young group, where that process 

 goes on with great activity. 



1 d. Cahce of an adult corallite ; natural size. 



