colony of bryozoa on the valves of the mollusk mediterranean mussel (mytilus galloprovincialis

bryozoan animal barnacles benthal benthos bentos bivalve bivalves black sea clam colony conch galloprovincialis group invertebrate invertebrates life mediterranean mussel mollusk mussels mytilidae mytilus nature seashells sessile organisms shell shellfish waters underwater wild aquatic bryozoa cristatella ecological ecology europe fauna flora macro microscopic moss undersea white wildlife zoology