342 PROFESSOR P. M. DUNCAN ON THE 
Fig. 17. Calice, magnified, of Solenosmilia variabilis. 
Fig. 18. Corallum (old) : 
PLATE XLIII. 
Fig. 1. Corallum of Caryophyllia arcuata, variety. 
Fig. 2. Calice, magnified. 
Fig. 3. Coste, magnified. 
Fig. 4. Ornamentation of the septa, magnified. 
Fig. 5. Corallum of Paracyathus agassizt. 
Fig. 6. Its calice, magnified. 
Fig. 7. The coste, magnified. 
Fig. 8. Septum and pali, magnified. 
Fig. 9. Corallum of Paracyathus striatus. 
Fig. 10. Its calice, magnified. 
Fig. 11. The calicular termination, showing the tall pali. 
Fig. 12. A septum, magnified. 
Fig. 13. A corallum growing from the calice of a parent. 
Fig. 14 
Fig. 19 
Fig. 15. Calicular view. 
Fig. 16. Calicular view, magnified. 
Fig. 17. View of fractured peduncle. 
Fig. 18. The cost and epitheca, magnified. 
"| Corallites of Balanophyllia socialis. 
PLATE XLIV. 
Fig. 1. Corallum of variety of Amphihelia ramea. 
Fig. 3. Another specimen, slightly magnified. 
Fig. 2. A calice, magnified. 
Fig. 4. Corallum of Caryophillia sequenze. 
Fig. 5. Its cost, magnified. 
Fig. 6. The calice, magnified. 
Figs. 7 & 8. Side views of unusual shapes of buds of Lophohelia prolifera. 
Fig. 9. Magnified stem, showing the increase of wall-thickness outside the visceral 
cavity. 
Fig. 10. Section of a corallite, showing tabule. 
Fig. 11. Magnified view of a calice. 
PLATE XLV. 
Fig. 1. Corallum of Amphihelia oculata. 
Fig. 2. Calicular ends, magnified. 
