MADREPORARIA. 

 Fig. 518. 



525 



Madrepore, Madrepora aspera, Dana. Right-hand branches alive. 

 Fig. 5*9- 



Fig. 5 co 



Fig. 521. 



Poritesflexuosa, Dana. 



Fig. 522. 



Mczandrina gracilis, Dana. 

 Cladocoraflexuosa, Ehr. Small piece of a large mass. 



Fig. 523 



Merulina speciosa, Dana. Astroides calycularts, Milne-Edw. Coral Poh-ps in 



various stages of expansion. 



