Phylum Mollusca Linnaeus, 1758 - molluscs
Class Bivalvia Linnaeus, 1758 - bivalves
Subclass Anomalodesmata Dall, 1889 [monotypic]
see Order Anomalodesmata Dall, 1889
Order Pholadomyida Newell, 1965
Suborder Clavagellina Newell, 1965 [monotypic]
see Superfamily Clavagelloidea d'Orbigny, 1844
Superfamily Clavagelloidea d'Orbigny, 1844 [monotypic]
Family Clavagellidae d'Orbigny, 1844, nom. protect.
Genus Humphreyia Gray, 1858
Subgenus Nipponoclava Smith, 1976