PLATE XIV. 



CORALS I'ROM THE LOWER LIAS. 



Fig. 



1 . A calice of MontlivaUia rugosa, Wright, magnified. (Pp. 58.) 



2. An oblique view of some dentate septa of the same species, magnified. 



3. A portion of a worn caUce, magnified, showing the irregular septal aiTangement of 



some specimens of this species. 



4. A young specimen of Monilivaltia mucronata, Duncan. (Pp. 59.) 



5. A variety oi MontlivaUia mucronata. 



6. One of its septa, magnified, showing the mucronate processes and the granular 



ornamentation. 



7. One of the processes, magnified. 



8. A side view of the corallum of a full-grown individual, rather enlarged. 



9. A calice of a full-grown MontlivaUia mucronata, magnified. (Pp. 59.) 



10. A deformed specimen of a variety of MontlivaUia mucronata. 



11 . A conical variety of MontlivaUia mucronata. 



14. A variety oi MontlivaUia mucronata, with a deeper calice than the type. 



15. The calice, magnified. 



1 6. One of its septa, magnified. 



17. A process, magnified. 



lb. A variety oi MontlivaUia mucronata. 



12. The corallum of i1/b??^//wa/i;m «M/«wj/bra/M-, Duncan. (P. GO.) 



13. The basal epitheca and projecting septa, magnified. 



