Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Solenogastres Gegenbaur, 1878
     Order Cavibelonia Salvini-Plawen, 1978
       Family Pararrhopaliidae Salvini-Plawen, 1972 see Family Pruvotinidae Heath, 1911, nom. corr.
         Subfamily Pararrhopaliinae Salvini-Plawen, 1972
           1 Genus Pararrhopalia Simroth, 1893
           2 Genus Labidoherpia Salvini-Plawen, 1978
           3 Genus Pruvotina Cockerell, 1903