1. Family [unassigned] †
2. Family Amphimelaniidae P. Fischer & Crosse, 1891
3. Family Batillariidae Thiele, 1929
4. Family Brachytrematidae Cossmann, 1906 †
5. Family Cerithiidae J. Fleming, 1822
6. Family Dialidae Kay, 1979
7. Family Diastomatidae Cossmann, 1894
8. Family Eustomatidae Cossmann, 1906 †
9. Family Hemisinidae P. Fischer & Crosse, 1891
10. Family Ladinulidae Bandel, 1992 †
11. Family Litiopidae Gray, 1847
12. Family Maoraxidae Bandel, Gründel & P. A. Maxwell, 2000 †
13. Family Melanopsidae H. Adams & A. Adams, 1854
14. Family Modulidae P. Fischer, 1884
15. Family Pachychilidae P. Fischer & Crosse, 1892
16. Family Paludomidae Stoliczka, 1868
17. Family Pelycidiidae Ponder & Hall, 1983
18. Family Pickworthiidae Iredale, 1917
19. Family Planaxidae Gray, 1850
20. Family Pleuroceridae P. Fischer, 1885 (1863)
21. Family Popenellidae Bandel, 1992 †
22. Family Potamididae H. Adams & A. Adams, 1854
23. Family Procerithiidae Cossmann, 1906 †
24. Family Propupaspiridae Nützel, Pan & Erwin, 2002 †
25. Family Prostyliferidae Bandel, 1992 †
26. Family Scaliolidae Jousseaume, 1912
27. Family Semisulcospiridae J. P. E. Morrison, 1952
28. Family Siliquariidae Anton, 1838
29. Family Thiaridae Gill, 1871 (1823)
30. Family Turritellidae Lovén, 1847
31. Family Zemelanopsidae Neiber & Glaubrecht, 2019
32. Family Anaplocamidae Dall, 1921 accepted as Pleuroceridae P. Fischer, 1885 (1863)
33. Family Aplodontidae Kuroda, 1933 accepted as Modulidae P. Fischer, 1884
34. Family Archimediellidae Starobogatov, 1982 accepted as Turritellidae Lovén, 1847
35. Subfamily Aylacostomatinae Parodiz, 1969 accepted as Hemisinidae P. Fischer & Crosse, 1891
36. Family Bathanaliidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
37. Family Bittiidae accepted as Bittiinae Cossmann, 1906
38. Family Ceriphasiidae Gill, 1863 accepted as Pleuroceridae P. Fischer, 1885 (1863)
39. Family Cerithideidae Houbrick, 1988 accepted as Potamididae H. Adams & A. Adams, 1854
40. Family Ellipstomatidae Hannibal, 1912 accepted as Pleuroceridae P. Fischer, 1885 (1863)
41. Family Faxiidae Ravn, 1933 † accepted as Sherborniinae Iredale, 1917
42. Family Finellidae Thiele, 1929 accepted as Scaliolidae Jousseaume, 1912
43. Family Fossaridae A. Adams, 1860 accepted as Fossarinae A. Adams, 1860 (original rank)
44. Family Giraudiidae Bourguignat, 1885 accepted as Hauttecoeuriinae Bourguignat, 1885 (invaliud: type genus a junior homonym of Giraudia Foerster, 1868 [Hymenoptera])
45. Family Glauconiidae Pchelintsev, 1953 † accepted as Cassiopidae Beurlen, 1967 † (invalid: type genus a junior homonym of Glauconia Gray, 1845 [Reptilia])
46. Subfamily Hemisininae P. Fischer & Crosse, 1891 accepted as Hemisinidae P. Fischer & Crosse, 1891 (ranked as full family)
47. Family Hilacanthidae Bourguignat, 1886 accepted as Hauttecoeuriinae Bourguignat, 1885
48. Family Lavigeriidae Thiele, 1925 accepted as Paludomidae Stoliczka, 1868
49. Family Limnotrochidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
50. Family Melanatriidae Thiele, 1921 accepted as Pachychilidae P. Fischer & Crosse, 1892
51. Family Melaniidae Children, 1823 accepted as Thiaridae Gill, 1871 (1823)
52. Family Melanoididae Ihering, 1909 accepted as Thiaridae Gill, 1871 (1823)
53. Family Nassopsidae Kesteven, 1903 accepted as Hauttecoeuriinae Bourguignat, 1885
54. Family Obtortionidae Thiele, 1925 accepted as Scaliolidae Jousseaume, 1912
55. Family Omalaxidae Cossmann, 1916 † accepted as Omalaxinae Cossmann, 1916 †
56. Family Pachymelaniidae Bandel & Kowalke, 1999 accepted as Hemisinidae P. Fischer & Crosse, 1891
57. Family Paramelaniidae J. E. S. Moore, 1898 accepted as Hauttecoeuriinae Bourguignat, 1885
58. Family Potadomatidae Pilsbry & Bequaert, 1927 accepted as Pachychilidae P. Fischer & Crosse, 1892
59. Family Prisciphoridae Bandel, Gründel & P. A. Maxwell, 2000 † accepted as Eumetulinae Golikov & Starobogatov, 1975
60. Family Pyrazidae Hacobjan, 1972 accepted as Batillariidae Thiele, 1929
61. Family Reynellonidae Iredale, 1917 accepted as Pickworthiinae Iredale, 1917
62. Family Rumellidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
63. Family Spekiidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
64. Family Strepomatidae Haldeman, 1864 accepted as Pleuroceridae P. Fischer, 1885 (1863)
65. Family Styliferinidae Bandel, 1992 accepted as Litiopidae Gray, 1847 (not available: no description)
66. Family Syrnolopsidae Bourguignat, 1890 accepted as Hauttecoeuriinae Bourguignat, 1885
67. Family Telescopiidae J. K. Allan, 1950 accepted as Potamididae H. Adams & A. Adams, 1854
68. Family Tenagodidae Gill, 1871 accepted as Siliquariidae Anton, 1838
69. Family Terebrellidae Delpey, 1941 † accepted as Metacerithiidae Cossmann, 1906 † (invalid: type genus a junior homonym )
70. Family Tiphobiidae Bourguignat, 1886 accepted as Hauttecoeuriinae Bourguignat, 1885
71. Family Vermiculariidae Dall, 1915 accepted as Vermiculariinae Dall, 1913
72. Family [unassigned] Cerithioidea (temporary name)

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