1. Family Camaenidae Pilsbry, 1895
2. Family Canariellidae Schileyko, 1991
3. Family Cepolidae Ihering, 1909
4. Family Elonidae E. Gittenberger, 1977
5. Family Epiphragmophoridae Hoffmann, 1928
6. Family Geomitridae C. R. Boettger, 1909
7. Family Helicidae Rafinesque, 1815
8. Family Helicodontidae Kobelt, 1904
9. Family Hygromiidae Tryon, 1866
10. Family Labyrinthidae Borrero, Sei, D. G. Robinson & Rosenberg, 2017
11. Genus Laxecostula Harzhauser & Neubauer, 2020 †
12. Family Pleurodontidae Ihering, 1912
13. Family Polygyridae Pilsbry, 1895
14. Family Sphincterochilidae Zilch, 1960 (1886)
15. Family Thysanophoridae Pilsbry, 1926
16. Family Trichodiscinidae H. Nordsieck, 1987
17. Family Trissexodontidae H. Nordsieck, 1987
18. Family Xanthonychidae Strebel & Pfeffer, 1880
19. Family Bradybaenidae Pilsbry, 1934 (1898) accepted as Camaenidae Pilsbry, 1895
20. Family Calyciidae Iredale, 1941 accepted as Hadrinae Iredale, 1937
21. Family Chloritidae Iredale, 1938 accepted as Hadrinae Iredale, 1937
22. Family Cochlicellidae Schileyko, 1972 accepted as Cochlicellini Schileyko, 1972
23. Family Cochlicellinae Schileyko, 1972 accepted as Cochlicellini Schileyko, 1972 (unaccepted > superseded rank)
24. Family Cochlostylidae Möllendorff, 1890 accepted as Helicostylinae Ihering, 1909 (1890) (unused senior synonym)
25. Family Echinichidae F. G. Thompson & Naranjo-García, 2012 accepted as Echinichinae F. G. Thompson & Naranjo-García, 2012
26. Family Eulotidae Möllendorff, 1898 accepted as Bradybaenini Pilsbry, 1934 (1898)
27. Family Helicellidae Ihering, 1909 accepted as Hygromiidae Tryon, 1866
28. Family Helminthoglyptidae Pilsbry, 1939 accepted as Helminthoglyptinae Pilsbry, 1939
29. Family Humboldtianidae Pilsbry, 1939 accepted as Humboldtianinae Pilsbry, 1939
30. Family Jacostidae Pilsbry, 1948 accepted as Helicellini Ihering, 1909 (invalid: type genus placed on the Official Index)
31. Family Lampadiidae Winckworth, 1945 accepted as Labyrinthidae Borrero, Sei, D. G. Robinson & Rosenberg, 2017 (unavailable name: no description)
32. Family Lysinoidae Hoffmann, 1928 accepted as Lysinoinae Hoffmann, 1928
33. Family Monadeniidae H. Nordsieck, 1987 accepted as Monadeniinae H. Nordsieck, 1987
34. Family Papuinidae Iredale, 1938 accepted as Hadrinae Iredale, 1937 (unaccepted > junior objective synonym)
35. Family Pentataeniidae Mörch, 1864 accepted as Helicini Rafinesque, 1815
36. Family Planispiridae Iredale, 1941 accepted as Hadrinae Iredale, 1937
37. Family Rhagadidae Iredale, 1938 accepted as Hadrinae Iredale, 1937

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