Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Solenogastres Gegenbaur, 1878
     Order Pholidoskepia Salvini-Plawen, 1978
       1 Family Dondersiidae Simroth, 1893
       2 Family Sandalomeniidae Salvini-Plawen, 1978 [monotypic]
       3 Family Gymnomeniidae Odhner, 1921
       4 Family Lepidomeniidae Pruvot, 1902
       5 Family Macellomeniidae Thiele, 1907 [monotypic]
       6 Family Meiomeniidae Salvini-Plawen, 1985