BULLETIN OF THE 
EXPLANATION OF THE PLATE. 
PLATE I. 
Fig. Solenosmilia variabilis Duncan. Natural size. 
Fig. 2. z by A calicle showing first traces of division, 
magnified. 
Fig. 3. de a A calicle farther advanced in the process 
of division, two sides bending over and 
meeting in the middle. Magnified. 
Fig. 4. Amphihelia rostrata Pourr. Natural size. 
Fig. 5. da 44 Calicle, magnified. 
Fig. 6. Dendrophyllia profunda Pounr. Natural size. 
Pig. 7 ^ Yi Calicle, magnified. 
Fig. 8 «s E Section of young calicle, mag- 
nified. 
Fig. 9. Distichopora contorta Pourt. Natural size. 
Fig. 10. Cylicia inflata. Natural size. 
Fig. 11. e Ys Calicle, magnified. 
Fig. 12. Turbinolia corbicula Pourr. Calicle, magnified. 
Fig. 13. 7 Side view, magnified. 
Fig. 14. Anthemiphyllia patera Pourr. Calicle, magnified. 
Fig. 15. “ a Side view, magnified. 
Fig. 16. Trochopsammia infundibulum Pourr, Calicle, magnified. 
Fig. 17. ۸ d Side view, magnified, 
Fig. 18. Colangia simplex ۰ Side view, magnified. 
Fig. 18a. di i Calicle, magnified, 
Fig. 19. Ceratotrochus hispidus Pourr. Side view, magnified. 
Fig. 20. $ Hn Calicle, magnified. 
. 21. Montlivaultia poculum Pourr. Side view, natural size, 
ig. 22. " "n Calicle, natural size. 
