212 BULLETIN OF THE 



EXPLANATION OF THE PLATE. 



PLATE L 



Fig. 1. Solenosmilia variabilis Duncan. Natural size. 



Fig. 2. *• " A calicle showing first traces of division, 



magnified. 

 Fig. 3. " " A calicle farther advanced in the process 



of division, two sides bending over and 

 meeting in the middle. Magnified. 

 Ampliihelia rostrata Pourt. Natural size. 



" " Calicle, magnified. 



6. Dendrophyllia profunda Poukt. Natural size. 



" " Calicle, magnified. 



" " Section of young calicle, mag- 



nified. 

 Distichopora contorta Pouut. Natural siza. 

 Cylicia inflata. Natural size. 



" " Calicle, magnified. 



Turbinolia corbicula Poukt. Calicle, magnified. 



" " Side view, magnified. 



Anthemipliyllia patera Pouut. Calicle, magnified. 



" " Side view, magnified. 



Trochopsammia infundibulum Pouut. Calicle, magnified. 



" " Side view, magnified. 



Colangia simplex Poukt. Side view, magnilied. 

 " " Calicle, magnified. 



Fig. 19. Ceratotrochua hispidus Poukt. Side view, magnified. 

 Fig. 20. " " Calicle, magnified. 



Fig. 21. Montlivaultia poculum Pouut. Side view, natural size. 

 Fig. 22. " " Calicle, natural size. 



