Plate 34. 

 Boring filamentous algae. 



Fig. 1. Algal filanient.s left after decalcifying a curallite of Orbicella cavernosa 

 (Linnaeus), X 100. 

 2. Thin section of a part septum of Orbicella annularis (Ellis and Solander) 

 showing algal filaments in place, X 100. 



273 



