Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Solenogastres Gegenbaur, 1878
     Order Sterrofustia Salvini-Plawen, 1978
       1 Family Phyllomeniidae Salvini-Plawen, 1978
       2 Family Imeroherpiidae Salvini-Plawen, 1978 [monotypic]
       3 Family Heteroherpiidae Salvini-Plawen, 1978