Complex sentence: The giant honeycomb oyster ("Hyotissa hyotis") is a very large saltwater oyster, a bivalve mollusk that is found in deeper water in the Indo-Pacific ocean.
Split into simpler sentences: The giant honeycomb oyster ("Hyotissa hyotis") is a very large saltwater oyster, a marine bivalve mollusk. Its native range is in deeper water in the Indo-Pacific Ocean.