PLATE VIII. 
Montipora fragilis, a part of the corallum ; natural size. 
Fig. la. A calicle with papille ; magnified. 
Fig. 10. Papille of the distal surface ; magnified. 
Montipora levis, a part of the corallum ; natural size. 
Fig. 2a. A ealicle; magnified. 
Montipora obtusata, the corallum ; natural size. 
Fig. 3a. A calicle ; magnified. 
Montipora irregularis, a part of the corallum ; natural size. 
Fig. 4a. The wall and calicles ; magnified. 
Montipora exserta, a part of the corallum ; natural size. 
Fig. 5a. A ealicle; magnified. 
Fig. 5$. Oblique view of a calicle ; more highly magnified. 
Napopora irregularis, a part of the corallum ; natural size. 
Fic. 6a. Calicles ; magnified. 
Rhodarzxa' tenwidens, the corallum ; natural size. 
Fig. 7a. A calicle ; magnified. 
Fig. 7b. Oblique view of a calicle ; magnified. 
1 Not Rhodarrhea as on the Plate. 
