PLATE XVI. 



CORALS FROM THE LOWER AND MIDDLE LIAS. 



Fig. 



1. Lejndophyllia Hebridensis, Duncan. Natural size. (P. 62.) 



2. Calices, magnified, showing calicular gemination. 



3. Side view of corallites, showing the epitheca. 



4. Septa, magnified. 



5.) 



^ » p \ Montlivaltia rugosa, Wright, sp. (P. 58.) 



Common forms of -^ „„ , „ ° . ^,_ 



yiliecocyatlms ruyosus, Wright, Mo. 





6. 



7. 

 9. 



10. 

 11. 

 •12. 

 13. 

 14. 



8. Septal ends (external) and intermediate endotheca (magnified). 



15. A section magnified, showing the strong and arched endotheca between the 

 septa. 



;Unusual and young forms of the same species. 



