Class Scaphopoda Bronn, 1862 - tusk shells Order Gadilida Starobogatov, 1974 Suborder Entalimorpha Steiner, 1992 [monotypic] Family Entalinidae Chistikov, 1979 Subfamily Bathoxiphinae Chistikov, 1983 Genus Solenoxiphus Chistikov, 1983