Description

Also known as Boring Clam, Boring Giant Clam, Burrowing Clam, Clam, Crocea Clam, Crocus Clam, Dwarf Giant Clam, Giant Clam, Saffron-coloured Clam, Salt Water Clam.

Found growing in small cracks and fissures, of corals and rocks, over intertidal shallow reef flats. This is the smallest of giant clams.
They feed on plankton.
Length - 10cm
Depth - 0-20m
Widespread Indo-West Pacific

Most Bivalves are permanently anchored in fissures or depressions in the rock surface of the reef, some may become covered in algae and other marine life.
Other Bivalves swim free, either by a well developed foot or propelled along by a jet of water from their mantle cavity. Ref: https://en.wikipedia.org/wiki/Tridacna_crocea