[Heterobranchia] Burmeister, 1837
see Superorder Heterobranchia Burmeister, 1837
Euthyneura Spengel, 1881
Panpulmonata Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010
Acochlidia Odhner, 1937
see Order Acochlidia Odhner, 1937
1 Microhedylacea
see Suborder Microhedylacea Wawra, 1987, nom. ined.
2 Hedylopsacea Starobogatov, 1983
see Suborder Hedylopsacea Starobogatov, 1983