EXPLANATION OF PLATE I, 
Figs. 1, la. Caryophyllia ambrosia, x 2. 
Figs. 2, 2b. Caryophyllia paradoxus, natural size. 
Figs. 2a, 2c. Caryophyllia paradoxus, X 2. 
Figs. 8, 3a. Caryophyllia scilleomorpha, X 3. 
Figs. 4, 4a. Caryophyllia ephyala, x 4. 
Figs. 5, 5a. Deltocyathus andamanicus, X 2. 

