Turbellaria
Bdellouridae Diesing, 1862
Bipaliidae Stimpson, 1857
Dendrocoelidae Hallez, 1892
Dimarcusidae Mitchell & Kawakatsu, 1972
Dugesiidae Ball, 1974
Geoplanidae Stimpson, 1857
Haplosplanchidae
Nexilidae Holleman & Hand, 1962
Planariidae Stimpson, 1857
Procerodidae Diesing, 1862
Rhynchodemidae Graff, 1896
Uteriporidae Wilhelmi, 1909
