Gastropoda
      Caenogastropoda
                  Neotaenioglossa
                              Rissooidea
                                    Amnicolidae
                                    Anabathridae
                                    Assimineidae
                                    Barleeiidae
                                    Bithyniidae
                                    Caecidae
                                    Elachisinidae
                                    Emblandidae
                                    Epigridae
                                    Falsicingulidae
                                    Hydrobiidae
                                    Hydrococcidae
                                    Iravadiidae
                                    Pomatiopsidae
                                    Rissoidae
                                    Stenothyridae
                                    Tornidae
                                    Truncatellidae