PLATE VI. 



LIASSIC CORALS FROM THE SUTTON STONK AND BROCASTLE. 



Fig. 



1. 



2. 

 3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 14. 

 13. 

 15. 



Astrocoenia (/ibbona, Duncan. (P. 18.) Some calices, magnified, showing a very 



usual state of preservation . 

 A worn calice, magnified. 

 A side view of worn calices, showing the dense intermediate tissue, and faint 



traces of endotheca, magnified. 

 A side view of a cahce, magnified. 

 ElysastrcEa Fischeri, Laube. (P. 29.) A transverse section of part of the coral- 



lum, slightly magnified. 

 A transverse section showing some coralhtes not united by their walls. 

 The septa of neighbouring calices, the walls being united, magnified. 

 Corallites which are separate, and covered with epitheca, magnified. 

 This is a diagram, and shows the plan of the genus. 

 Eli/sastnea Moorei, DnncavL. (P. 30.) Upper surface of corallum. 

 A calice, magnified. 



United calices, magnified. 



A corallite, showing costae, the epitheca having been worn ofi 



