44 



T. F. GOKEAU AND W. I). IIAKT.MAN 



Fig. 15. Side view of greatly flattened specimens of Porites astreoides and 

 Montastrea annularis at a depth of about 30 meters on the steep outer slope. 

 These species are abundant throughout the reef, but in shallow water their 

 colonies are larger, heavier, and hemispheroidal in shape. The corals shown 

 here were much damaged by boring organisms and also carried a variety of 

 large sponges attached to dead parts of the colonies. The tube sponges hang- 

 ing from the underside of the lower coral were almost 1 meter in length. 



