Phylum Mollusca Linnaeus, 1758 - molluscs Class Solenogastres Gegenbaur, 1878 1 Order Pholidoskepia Salvini-Plawen, 1978 2 Order Neomeniamorpha Salvini-Plawen, 1978 3 Order Sterrofustia Salvini-Plawen, 1978 4 Order Cavibelonia Salvini-Plawen, 1978