PLATE V. 



CORALS FROM BROCKENHURST. 



SolenastrcBa cellulosa, Duncan. (P. 41.) 

 Fig. 



1 . View of the upper surface of the coraUum. 



2. Lateral view, showing the cellular exotheca. 



3. One system, with its four cycles ; the abundant endotheca is showai, also the rudi- 



mentary costse. Much magnified. 



4. A transverse section of a corallite close to the cahce, magnified. 



5. A lateral view of a corallite covered with exotheca, magnified. 



6. Part of a corallite above the exotheca, and showing the costse ; magnified. 



7. View of the upper surface, magnified. 



Solenastrcea Koeneni, Duncan. (P. 42.) 



8. The corallura. 



9. A calice, highly magnified. 



SolenastrcBa Reussi, Duncan. (P. 43.) 



10. The corallum, showing the banded exotheca. 



11. Costae ; there is exotheca above and below them. 



12. Upper surface of corallum, highly magnified, showing the granular surface of the 



upper layer of the exotheca, the banded structure of part of the exotheca, and the 

 calices. 



13. Upper surface of corallum, worn. 



14. Exotheca, cellular and banded. 



15. Side view of one of the septa, magnified. 



16. One system of septa, showing five cycles. 



