Phylum Mollusca Linnaeus, 1758 - molluscs Class Solenogastres Gegenbaur, 1878 Order Pholidoskepia Salvini-Plawen, 1978 Family Meiomeniidae Salvini-Plawen, 1985 1 Genus Meiomenia Morse, 1979 2 Genus Meioherpia Salvini-Plawen, 1985