Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Solenogastres Gegenbaur, 1878
     Order Neomeniamorpha Salvini-Plawen, 1978
       Family Hemimeniidae Salvini-Plawen, 1978
         1 Genus Hemimenia Nierstrasz, 1902
         2 Genus Archaeomenia Thiele, 1906