PLATE XI. 
Figs. 1-7. Mycedinm fragile Dana, young specimens still simyile. 
Fie. 8. MyceJium fragile Dana, young specimens with first circle of buds surrounding the central 
calicle. 
Figs. 9, 10. Mycedinm fragile Dana, young specimens in profile, figured from above in 3 and 7. 
Figs. 11, 12, 13. Agaricia agaricites Milne-Edw. and Hainie, young specimens. 
Figs. 14 - 19. Siderastrtea galaxea Milne-Edw. and Haime, young specimens still in the simple state. 
Figs. 20, 21. Siderastraea galaxea Milne-Edw. and Haime, young specimens multiplying by gemmation. 
All the figures are magnified, the natural size being indicated by the small figures. 
