1. Family Amphimelaniidae P. Fischer & Crosse, 1891
2. Family Batillariidae Thiele, 1929
3. Family Brachytrematidae Cossmann, 1906 †
4. Family Cerithiidae J. Fleming, 1822
5. Family Dialidae Kay, 1979
6. Family Diastomatidae Cossmann, 1894
7. Family Eustomatidae Cossmann, 1906 †
8. Family Hemisinidae P. Fischer & Crosse, 1891
9. Family Ladinulidae Bandel, 1992 †
10. Family Litiopidae J. E. Gray, 1847
11. Family Maoraxidae Bandel, Gründel & P. A. Maxwell, 2000 †
12. Family Melanopsidae H. Adams & A. Adams, 1854
13. Family Modulidae P. Fischer, 1884
14. Family Nodolargenidae Garvie, 2021 †
15. Family Pachychilidae P. Fischer & Crosse, 1892
16. Family Paludomidae Stoliczka, 1868
17. Family Pelycidiidae Ponder & S. J. Hall, 1983
18. Family Pickworthiidae Iredale, 1917
19. Family Planaxidae J. E. 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 Sherborniidae Iredale, 1917
29. Family Siliquariidae Anton, 1838
30. Family Thiaridae T. Gill, 1871 (1823)
31. Family Turritellidae Lovén, 1847
32. Family Zardinellopsidae Bandel, 2006 †
33. Family Zemelanopsidae Neiber & Glaubrecht, 2019
34. Family Alabinidae Dall, 1927 accepted as Bittiinae Cossmann, 1906
35. Family Anaplocamidae Dall, 1921 accepted as Pleuroceridae P. Fischer, 1885 (1863)
36. Family Aplodontidae Kuroda, 1933 accepted as Modulidae P. Fischer, 1884
37. Family Archimediellidae Starobogatov, 1982 accepted as Turritellinae Lovén, 1847
38. Subfamily Aylacostomatinae Parodiz, 1969 accepted as Hemisinidae P. Fischer & Crosse, 1891 (unaccepted > junior subjective synonym)
39. Family Bathanaliidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885 (unaccepted > junior subjective synonym)
40. Family Bittiidae Cossmann, 1906 accepted as Bittiinae Cossmann, 1906 (unaccepted > superseded rank)
41. Family Ceriphasiidae T. Gill, 1863 accepted as Pleuroceridae P. Fischer, 1885 (1863)
42. Subfamily Ceriphasiinae T. Gill, 1863 accepted as Pleuroceridae P. Fischer, 1885 (1863) (unaccepted > junior subjective synonym)
43. Family Cerithideidae Houbrick, 1988 accepted as Potamididae H. Adams & A. Adams, 1854
44. Family Ellipstomatidae Hannibal, 1912 accepted as Pleuroceridae P. Fischer, 1885 (1863)
45. Family Faxiidae Ravn, 1933 † accepted as Sherborniidae Iredale, 1917
46. Family Finellidae Thiele, 1929 accepted as Scaliolidae Jousseaume, 1912
47. Family Fossaridae A. Adams, 1860 accepted as Fossarinae A. Adams, 1860 (unaccepted > superseded rank)
48. Family Giraudiidae Bourguignat, 1885 accepted as Hauttecoeuriinae Bourguignat, 1885 (invaliud: type genus a junior homonym of Giraudia Foerster, 1868 [Hymenoptera])
49. Family Glauconiidae Pchelintsev, 1953 † accepted as Cassiopidae Beurlen, 1967 † (invalid: type genus a junior homonym of Glauconia Gray, 1845 [Reptilia])
50. Subfamily Hemisininae P. Fischer & Crosse, 1891 accepted as Hemisinidae P. Fischer & Crosse, 1891 (ranked as full family)
51. Family Hilacanthidae Bourguignat, 1890 accepted as Hauttecoeuriinae Bourguignat, 1885
52. Family Jugidae Starobogatov, Prozorova, Bogatov & Sayenko, 2004 accepted as Semisulcospiridae J. P. E. Morrison, 1952 (unaccepted > unavailable name)
53. Family Juramelanatriidae Bandel, 2006 † accepted as Thiaridae T. Gill, 1871 (1823) (unaccepted > junior subjective synonym)
54. Family Lavigeriidae Thiele, 1925 accepted as Paludomidae Stoliczka, 1868
55. Family Limnotrochidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
56. Family Melanatriidae Thiele, 1921 accepted as Pachychilidae P. Fischer & Crosse, 1892
57. Family Melaniidae Children, 1823 accepted as Thiaridae T. Gill, 1871 (1823)
58. Family Melanoididae Ihering, 1909 accepted as Thiaridae T. Gill, 1871 (1823) (unaccepted > junior subjective synonym)
59. Family Nassopsidae Kesteven, 1903 accepted as Hauttecoeuriinae Bourguignat, 1885
60. Family Obtortionidae Thiele, 1925 accepted as Scaliolidae Jousseaume, 1912
61. Family Omalaxidae Cossmann, 1916 † accepted as Omalaxinae Cossmann, 1916 †
62. Family Pachymelaniidae Bandel & Kowalke, 1999 accepted as Hemisinidae P. Fischer & Crosse, 1891 (unaccepted > junior subjective synonym)
63. Family Paramelaniidae J. E. S. Moore, 1898 accepted as Hauttecoeuriinae Bourguignat, 1885
64. Family Potadomatidae Pilsbry & Bequaert, 1927 accepted as Pachychilidae P. Fischer & Crosse, 1892
65. Family Prisciphoridae Bandel, Gründel & P. A. Maxwell, 2000 † accepted as Eumetulinae A. N. Golikov & Starobogatov, 1975
66. Family Pyrazidae Hacobjan, 1972 † accepted as Batillariidae Thiele, 1929 (unaccepted > junior subjective synonym)
67. Family Pyrguliferidae Delpey, 1941 † accepted as Thiaridae T. Gill, 1871 (1823) (unaccepted > unavailable name)
68. Family Reynellonidae Iredale, 1917 accepted as Pickworthiinae Iredale, 1917 accepted as Pickworthiidae Iredale, 1917
69. Family Rumellidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
70. Subfamily Semisulcospirinae J. P. E. Morrison, 1952 accepted as Semisulcospiridae J. P. E. Morrison, 1952 (unaccepted > superseded rank)
71. Family Spekiidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
72. Family Strepomatidae Haldeman, 1864 accepted as Pleuroceridae P. Fischer, 1885 (1863)
73. Family Styliferinidae Bandel, 1992 accepted as Litiopidae J. E. Gray, 1847 (not available: no description)
74. Family Syrnolopsidae Bourguignat, 1890 accepted as Hauttecoeuriinae Bourguignat, 1885
75. Family Telescopiidae J. K. Allan, 1950 accepted as Potamididae H. Adams & A. Adams, 1854
76. Family Tenagodidae T. Gill, 1871 accepted as Siliquariidae Anton, 1838
77. Family Terebrellidae Delpey, 1941 † accepted as Metacerithiidae Cossmann, 1906 † (invalid: type genus a junior homonym )
78. Family Tiphobiidae Bourguignat, 1886 accepted as Hauttecoeuriinae Bourguignat, 1885
79. Family Vermiculariidae Dall, 1915 accepted as Turritellinae Lovén, 1847
80. Family Cerithioidea incertae sedis (temporary name)

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