chiton, a marine polyplacophoran mollusk in the family chitonidae

underwater reef fish invertebrate coral animal wildlife organism aquarium nature food macro rock olivaceus sea molluscs diver alive snail decorative mollusca undersea colorful creature seashell life saltwater lined chiton tonicella lineata seascape common undocaerulea mediterranean water closeup shell mollusk polyplacophora cradles tropical environment aquatic invertebrates typical chitons species chitonidae mollusc marine polyplacophoran family scenes