Scientific Family. The Giant Clams belong to the genus Tridacna (Bruguière 1797), of which Tridacna gigas is the largest living immobile bivalve mollusk in the world. The Giant Clam is known as “Taklobo” in the Philippines. They live in the shallow coral reefs of the South China Sea, West Philippine Sea, Sulo Sea, Red Sea, but mainly in the Indian…