MADREPORARIA OF THE DEEP SEA, 343 
Fig. 3. Calice, magnified. 
Fig. 4. Amphihelia ramea. 
Fig. 6. Ornamentation of the corallites, magnified. 
Fig. 6. Calice magnified. 
PLATE XLVI. 
Fig. 1 
Fig. 3. | 
Fig. 6. | 
Fig. 8. }Corallites of varieties of Amphihelia ramea. 
Fig. 11. | 
Fig. 14. | 
Fig. 17. j 
The other figures represent magnified views of branches, of ornamentation and calices. 
PLATE XLVII. 
Figs. 1 & 5. View of corallum of a species the genus of which is doubtful. 
Fig. 2. Side view, magnified. 
Fig. 3. Calicular surface, magnified. 
Fig. 4. Base, magnified. 
Figs. 6 & 7. Base and calice of another specimen, magnified. 
Fig. 8. Coste, magnified. 
Fig. 9. | 
Bigs 10. | Corallites of Guynia annulata. Figs. 11 & 13. On shells. 
Fig. 13. / 
Fig. 10. | 
Fig. 12. J 
Fig. 14. Corallum adherent by its side, magnified. 
Fig. 15. 
Fig. 16. 
Fig. 17. Group of Rhizotrochus affinis. 
Fig. 18. Corallum, slightly magnified. 
Fig. 19. Calice, magnified. 
Side view, magnified. 
| Calice, magnified. 
PLATE XLVIII. 
Fig. 1. Corallum of Bathycyathus atlanticus. 
Fig. 2. Calice, magnified. 
Fig. 3. Corallum of Caryophyllia cyathus, variety «. 
Fig. 4. Calice, magnified. 
Fig. 5. Corallum of Caryophyllia clavus, var. exserta. 
Fig. 6. 3 var. borealis. 
VOL. Vill.—PART vy. March, 1873. 30 
