Tridacna maxima,Blue Maxima Clam,Small Giant Clam, Elongate Giant Clam

Chinese name:长砗磲

Bivalves have two valves on the mantle. These siphon water through the body to extract oxygen from the water using the gills and to feed on algae. The maxima is less than one-third the size of the true giant clam (Tridacna gigas).