1. Family Camaenidae Pilsbry, 1895
2. Family Canariellidae Schileyko, 1991
3. Family Cepolidae Ihering, 1909
4. Family Elonidae E. Gittenberger, 1977
5. Family Epiphragmophoridae H. 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, 1879
19. Family Ariantidae Mörch, 1864 accepted as Ariantinae Mörch, 1864 (unaccepted > superseded rank)
20. Family Bradybaenidae Pilsbry, 1934 (1898) accepted as Camaenidae Pilsbry, 1895 (unaccepted > junior subjective synonym)
21. Family Calyciidae Iredale, 1941 accepted as Hadrinae Iredale, 1937
22. Tribe Canariellini Schileyko, 1991 accepted as Canariellidae Schileyko, 1991 (unaccepted > superseded rank)
23. Family Chloritidae Iredale, 1938 accepted as Hadrinae Iredale, 1937
24. Family Ciliellidae Schileyko, 1970 accepted as Ciliellini Schileyko, 1970 (unaccepted > superseded rank)
25. Family Cochlicellidae Schileyko, 1972 accepted as Cochlicellini Schileyko, 1972
26. Family Cochlicellinae Schileyko, 1972 accepted as Cochlicellini Schileyko, 1972 (unaccepted > superseded rank)
27. Family Cochlostylidae von Möllendorff, 1890 accepted as Helicostylinae Ihering, 1909 (1890) (unused senior synonym)
28. Family Echinichidae F. G. Thompson & Naranjo-García, 2012 accepted as Echinichinae F. G. Thompson & Naranjo-García, 2012 (unaccepted > superseded rank)
29. Family Eulotidae von Möllendorff, 1898 accepted as Bradybaenini Pilsbry, 1934 (1898)
30. Subfamily Fruticicolinae Kobelt, 1904 accepted as Bradybaeninae Pilsbry, 1934 (1898) (unaccepted > junior subjective synonym)
31. Family Hadridae Iredale, 1937 accepted as Hadrinae Iredale, 1937 (unaccepted > superseded combination)
32. Family Helicellidae Ihering, 1909 accepted as Hygromiidae Tryon, 1866
33. Family Helminthoglyptidae Pilsbry, 1939 accepted as Helminthoglyptinae Pilsbry, 1939
34. Family Humboldtianidae Pilsbry, 1939 accepted as Humboldtianinae Pilsbry, 1939 (unaccepted > superseded rank)
35. Family Jacostidae Pilsbry, 1948 accepted as Helicellini Ihering, 1909 (invalid: type genus placed on the Official Index)
36. Family Lampadiidae Winckworth, 1945 accepted as Labyrinthidae Borrero, Sei, D. G. Robinson & Rosenberg, 2017 (unavailable name: no description)
37. Family Leucochroidae Westerlund, 1886 accepted as Sphincterochilinae Zilch, 1960 (1886) (unaccepted > junior subjective synonym)
38. Family Lysinoidae H. Hoffmann, 1928 accepted as Lysinoinae H. Hoffmann, 1928 (unaccepted > superseded rank)
39. Family Monadeniidae H. Nordsieck, 1987 accepted as Monadeniinae H. Nordsieck, 1987
40. Family Papuinidae Iredale, 1938 accepted as Hadrinae Iredale, 1937 (unaccepted > junior objective synonym)
41. Family Pentataeniidae Mörch, 1864 accepted as Helicini Rafinesque, 1815
42. Family Planispiridae Iredale, 1941 accepted as Hadrinae Iredale, 1937
43. Family Rhagadidae Iredale, 1938 accepted as Hadrinae Iredale, 1937
44. Family Xerophilidae Mörch, 1864 accepted as Hygromiidae Tryon, 1866 (unaccepted > unavailable name, invalid name (its type genus Xerophila Held, 1838, has been placed by Opinion 431 on the Official Index of Rejected and Invalid Generic Names in Zoology)

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