342 PEOFESSOS P. M. DUNCAN ON THE 



Fig. 17. Calice, magnified, oi Solenosmilia variabilis. 

 Fig. 18. CoraUum (old) 



PLATE XLIII. 



Fig. 1. CoraUum of Caryophyllia arcuata, variety. 



Fig. 2. Calice, magnified. 



Fig. 3. Costse, magnified. 



Fig. 4. Ornamentation of the septa, magnified. 



Fig. 5. CoraUum of Paracyathus agassizi. 



Fig. 6. Its calice, magnified. 



Fig. 7. The costae, magnified. 



Fig. 8. Septum and pali, magnified. 



Fig. 9. CoraUum of Paracyatlius striatus. 



Fig. 10. Its calice, magnified. 



Fig. 11. The calicular termination, showing the taU pali. 



Fig. 12. A septum, magnified. 



Fig. 18. A corallum growing from the calice of a parent. 



Fio-. 14.1 



„.^ ,„ \ Corallites oi JSalanop/iiiUia socialis. 



Fig. 19. J ^ ^ 



Fig. 15. Calicular view. 



Fig. 16. Calicular view, magnified. 



Fig. 1 7 . View of fractured peduncle. 



Fig. 18. The costse and epitheca, magnified. 



PLATE XLIV. 



Fig. 1. Corallum of variety oi Amjihihelia ramea. 



Fig. 3. Another specimen, slightly magnified. 



Fig. 2. A calice, magnified. 



Fig. 4. Corallum of Caryophillia seguenzw. 



Fig. 5. Its costae, magnified. 



Fig. 6. The calice, magnified. 



Figs. 7 & 8. Side views of unusual shapes of buds of Lojjhohelia prolifera. 



Fig. 9. Magnified stem, showing the increase of wall-thickness outside the visceral 



cavity. 

 Fig. 10. Section of a corallite, shomng tabulae. 

 Fig. 11. Magnified view of a calice. 



PLATE XLV. 



Fig. 1. Corallum oi Amphilielia oculata. 

 Fig. 2. Calicular ends, magnified. 



