LIST OF ILLUSTRATIONS. 



ENGRAVINGS. 



FIG. 



1. Millcpora alciconiis, Forsk., 



2. The animal of Millepora nodosa. (After Moseley), 



3. PocUlopora aspcra, var. lata, Verrill. (After Dana), 



4. Favositcs favosa, Goldf. ; and F. Gothlandica, Lam., 



5. Syringopora rct'ifonnis, Bill. (After Billings), 



6. „ vcrticillata, Goldf. (After Billings), . 



7. „ Dalmani, Bill. (After Billings), 



8. Aulopora tiibceforiiiis, Goldf. ; and CladocJwniis {Fyfgia) Micliclini. 



Edw. and H. (After Goldfuss, and Edwards and Hainie), 



9. Halysitcs catcnularia, Linn. ; and H. agglomcrata, Hall. (Origi?ial) 



10. Tdradiuui mi?ius, Safford. (Original), ... 



11. Heliolitcs incgastoma, M'Coy. (Original), . 



12. LabecJiia avifcrta, Edw. and H. (Original), 



13. Alvcopora spongiosa, Dana. (After Dana), 



14. Yorxn?, oi Favosifcs Gof/iIandica,l^'^Vi'\. (Original), 



15. Favosites hemispherica, Yand. and Shum. (After Billings), 



16. Pachypora Fischer i, Bill. (Original), 



17. Pachypora frondosa, Nich. (Original), 



18. Striatopora flexHosa, Hall. (After Hall), . 



19. Romingeria nvibcllifera, Bill. (Original), . 



20. Calices of Alveolites suborhicnlaris, Lam. (After Goldfuss), 



21. Michelinia convexa, D'Orb. (After Billings), 



22. Plcurodictyiiin problanatiann, Goldf. (After Roemer, and Edwards 



and Haime); and P. stylophoriiin, Eaton. (Original), . 



23. Diagrams of Sections of Favosites and Pleiirodictyuiu. (Original), 



24. Sections oi Araopora australis, Nich. and Eth., jun. (Original), 



25. Stenopora Jackii, Nich. and Eth., jun. (Original), 



26. Sections of Stenopora ovata, Lonsd. (Original), . 



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