PLATE VIII. 



LIASSIC CORALS FROM THE SUTTON STONE AND FROM BROCASTLE. 



Fig. 



1. Montlivaltia jjolymorpha, Terquem et Piette. (P. 8.) A long and large specimen 



2. A part of its transverse section, magnified. 



3. Exothecal and endothecal dissepiments, costa3, and septa, magnified. 



4. A smaller corallum. 



13. Two corallites springing from a common base. 



14. Septa of ayomig corallite, magnified. 



15. Costse and exotheca of a young corallite, magnified. (See also PI. VII, figs. 



and 15.) 



5. Montlivaltia Wallice, Duncan. (P. 7.) A corallum in the rock. 



6. A calice, slightly magnified. 



7. A side view of a septum, magnified. 



8. Montlivaltia drevis, Dmcan. (P. 10.) A corallum ou the rock. 



9. A calice, magnified. 



10. Montlivaltia Murchisonia. (P. 8.) A corallum. 



11 . A part of the calice, magnified. 



12. The peculiar costal arrangement aud septa, magnified. 

 \Q. Montlivaltia pedunculafa.Bnncm. (P. 10.) A corallum. 



17. Isastraa glohosa, Duncan. (P. 31.) A corallum, the calices are worn. 



18. Calices, magnified. 



