Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Protobranchia Pelseneer, 1889
       Order Nuculida Dall, 1889
         Superfamily Nuculanoidea Adams & Adams, 1858 (1854)
           Family Malletiidae Adams & Adams, 1858 (1846)
             1 Genus Malletia Des Moulins, 1832
             2 Genus Katadesmia Dall, 1908
             3 Genus Malletiella Soot-Ryen, 1957
             4 Genus Minormalletia Dall, 1908
             5 Genus Pseudomalletia Fischer, 1886