Purple Washington Clam View fullsize View fullsize Learn More About Viewing Our 3D Images (4”) 10 cmSaxidomus nuttalli subspecies purpuratus (Sowerby, 1852).Japan. Intertidal to 20 m.Common Learn to read shell descriptions Kingdom: AnimaliaPhylum: MolluscaClass: BivalviaOrder: VeneridaFamily: VeneridaeGenus: SaxidomusSpecies: Saxidomus nuttalli