Rubble at base of wall on point. Variety of corals, lots of dwarfgobies, lots of plankton. 9-10m.
The tracks were watered down to see the shell that started to bury itself. Otherwuse it had been crawling towards ocean.
Port Hedland WA - Rock of Ages
Phylum Mollusca
Class Gastropoda
Order Neogastropoda
Family Olividae
Oliva brettinghami
Duclos, P.L., 1835
This observation is for the shell