Plathelminthes see [unranked] Platyhelminthes Gegenbaur, 1859 Euplathelminthes see [unranked] Rhabditophora Ehlers, 1985 Acoelomorpha Ehlers, 1985 see Subphylum Acoelomorpha Ehlers, 1985 Nemertodermatida Karling, 1940 - nemertodermatids see Order Nemertodermatida Karling, 1940