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 Genus Labidoherpia Salvini-Plawen, 1978