PLATE VIII. 



LIASSIC CORALS FROM THE SUTTON STONE AND FROM BROCaSTLE. 



Fig. 



1. Montlivaltia polpiior2)Iia, Terquem et Piette. (P. 8.) A long and large spechiieii. 



2. A part of its transverse section, magnified. 



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



4. A smaller corallum. 



13. Two corallites springing from a common base. 



14. Septa of a young corallite, magnified. 



15. Costae and exotlieca of a young corallite, magnified. (See also PI. VI 1, figs. 14 



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 brevis, Duncan. (P. 10.) A corallum on the rock. 



9. A calice, magnified. 



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



1 1 . A part of the calice, magnified. 



1.3. The peculiar costal arrangement and septa, magnified. 



16. Montlivaltia peduuculata, Duncan. (P. 10.) A corallum. 



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



18. Calices, magnified. 



