Phylum Mollusca Linnaeus, 1758 - molluscs Class Scaphopoda Bronn, 1862 - tusk shells Order Gadilida Starobogatov, 1974 Family Siphonodentaliidae Tryon, 1884 see Subfamily Siphonodentaliinae Tryon, 1884 Genus Striocadulus Emerson, 1962 1 Subgenus Sagamicadulus Sakurai & Shimazu, 1963 see Genus Sagamicadulus Sakurai & Shimazu, 1963