Definition: The term "Coregonidae" refers to a group of marine gastropod mollusks, commonly known as snails or clams, that belong to the family Neocoracoidae and are characterized by their distinctive coregions. These mollusks have a single shell with two pairs of legs (legs 1 and 2) on each side, which allow them to swim in shallow waters. The body is covered in tough plates or "clamps" that help