Figure 24: Ditrupa arietina ……………....……………………..…...………..…………......54
Figure 25: Débris organogène contenant du sable fin ……………....…………...……….....55
Figure 26: Coralligene ……………....……………………………….......……...………......56
Figure 27: Mesophyllum lichenoides ……………....……………..…......……...……….......57
Figure 28: Coralligene ……………....……………………………….......……...………......57
Figure 29: Eunicella singularis (Webplongée.com) ……..……..….......………...………......57