Class Bivalvia Linnaeus, 1758 - bivalves
   Subclass Autobranchia Grobben, 1894
     Superorder Heteroconchia Gray, 1854
       Clade Heterodonta Neumayr, 1884
         Order Myida Stoliczka, 1870
           Superfamily Myoidea Lamarck, 1809
             Family Myidae Lamarck, 1809 - soft-shelled clams
               1 Subfamily Myinae Lamarck, 1809
               2 Subfamily Cryptomyinae Habe, 1977
               3 Subfamily Spheniinae Bernard, 1983