72 



PAPERS FROM THE DEPARTMENT OF MARINE BIOLOGY. 



The data concerning four of the species listed in the preceding table 

 are deficient. 



The species may be arranged so as to indicate more clearly the relation 

 of growth-form to environment: 



Relations of growth-form of Cocos-Keeling corals to habitat. 



This table shows precisely the same relation of growth-form to habitat 

 as do the corals from Murray Island. 



