The giant honeycomb oyster (Hyotissa hyotis) is a very large saltwater oyster, a marine bivalve mollusk.
Species in this family are known as honeycomb oysters or “foam oysters” because under magnification, their shell structure is foam-like.
Like most bivalves, the giant honeycomb oyster is a filter feeder.
ts native range is in deeper water in the Indo-Pacific Ocean. It has however also been found recently as an accidentally introduced species in the Florida Keys.