CORALS AND CORAL REEFS VAUGHAN. 



233 



general the living reefs are growing on antecedent platforms tliat 

 have been submerged in geologically Eecent time. There are con- 

 tinuous platforms and discontinuous reefs in New Caledonia, the 

 Fiji Islands, and Tahiti, and such relations, which are certainly 

 usual, if not entirely general, are not in accord with the Darwin- 

 Dana hypothesis. Information on the small islands of the Society 



N . Jos /eve/ W. 



SABA 1$UAND 



No. I 



Sea /ever Ho!t Sea /eve/ 



tooo- 



«300- 



NORTH SIDE OF ST THOMAS 

 O 2 4 6 a 



i__l I I r I I L_ui 



/i/aut/ca/ mi/es 



NORTH SIDE OF ST, CROIX. 



Nautica/ mi/es. 



1,000 



M 



EAST COAST OF AM6UILLA 



/3Byi mi/es- 

 PEDRO BANK 



Sea /eve/ 



bosalino banh funafuti atou, 



Fig. 14. — Types of West Indian sdblittoral profiles and profile of Funafuti 



ATOLL. 



group, Murea, Huaheine, Raiatea, Bora-Bora, etc., is inadequate for 

 a definite statement, and there is controversy as to whether the reefs 

 are growing on previously formed flats or whether the flats are due 

 to infilling behind the reefs. 



West Indian Islands sublittoral profiles are interesting in this con- 

 nection, and are represented by text figure 14. There are no offshore 

 reefs where no platforms have been developed, as off the young vol- 



