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 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 Pachychilidae P. Fischer & Crosse, 1892
15. Family Paludomidae Stoliczka, 1868
16. Family Pelycidiidae Ponder & S. J. Hall, 1983
17. Family Pickworthiidae Iredale, 1917
18. Family Planaxidae J. E. Gray, 1850
19. Family Pleuroceridae P. Fischer, 1885 (1863)
20. Family Popenellidae Bandel, 1992 †
21. Family Potamididae H. Adams & A. Adams, 1854
22. Family Procerithiidae Cossmann, 1906 †
23. Family Propupaspiridae Nützel, Pan & Erwin, 2002 †
24. Family Prostyliferidae Bandel, 1992 †
25. Family Scaliolidae Jousseaume, 1912
26. Family Semisulcospiridae J. P. E. Morrison, 1952
27. Family Sherborniidae Iredale, 1917
28. Family Siliquariidae Anton, 1838
29. Family Thiaridae Gill, 1871 (1823)
30. Family Turritellidae Lovén, 1847
31. Family Zardinellopsidae Bandel, 2006 †
32. Family Zemelanopsidae Neiber & Glaubrecht, 2019
33. Family Alabinidae Dall, 1927 accepted as Bittiinae Cossmann, 1906
34. Family Anaplocamidae Dall, 1921 accepted as Pleuroceridae P. Fischer, 1885 (1863)
35. Family Aplodontidae Kuroda, 1933 accepted as Modulidae P. Fischer, 1884
36. Family Archimediellidae Starobogatov, 1982 accepted as Turritellidae Lovén, 1847
37. Subfamily Aylacostomatinae Parodiz, 1969 accepted as Hemisinidae P. Fischer & Crosse, 1891
38. Family Bathanaliidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
39. Family Bittiidae accepted as Bittiinae Cossmann, 1906
40. Family Ceriphasiidae Gill, 1863 accepted as Pleuroceridae P. Fischer, 1885 (1863)
41. Family Cerithideidae Houbrick, 1988 accepted as Potamididae H. Adams & A. Adams, 1854
42. Family Ellipstomatidae Hannibal, 1912 accepted as Pleuroceridae P. Fischer, 1885 (1863)
43. Family Faxiidae Ravn, 1933 † accepted as Sherborniidae Iredale, 1917
44. Family Finellidae Thiele, 1929 accepted as Scaliolidae Jousseaume, 1912
45. Family Fossaridae A. Adams, 1860 accepted as Fossarinae A. Adams, 1860 (original rank)
46. Family Giraudiidae Bourguignat, 1885 accepted as Hauttecoeuriinae Bourguignat, 1885 (invaliud: type genus a junior homonym of Giraudia Foerster, 1868 [Hymenoptera])
47. Family Glauconiidae Pchelintsev, 1953 † accepted as Cassiopidae Beurlen, 1967 † (invalid: type genus a junior homonym of Glauconia Gray, 1845 [Reptilia])
48. Subfamily Hemisininae P. Fischer & Crosse, 1891 accepted as Hemisinidae P. Fischer & Crosse, 1891 (ranked as full family)
49. Family Hilacanthidae Bourguignat, 1886 accepted as Hauttecoeuriinae Bourguignat, 1885
50. Family Juramelanatriidae Bandel, 2006 † accepted as Thiaridae Gill, 1871 (1823) (unaccepted > junior subjective synonym)
51. Family Lavigeriidae Thiele, 1925 accepted as Paludomidae Stoliczka, 1868
52. Family Limnotrochidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
53. Family Melanatriidae Thiele, 1921 accepted as Pachychilidae P. Fischer & Crosse, 1892
54. Family Melaniidae Children, 1823 accepted as Thiaridae Gill, 1871 (1823)
55. Family Melanoididae Ihering, 1909 accepted as Thiaridae Gill, 1871 (1823)
56. Family Nassopsidae Kesteven, 1903 accepted as Hauttecoeuriinae Bourguignat, 1885
57. Family Obtortionidae Thiele, 1925 accepted as Scaliolidae Jousseaume, 1912
58. Family Omalaxidae Cossmann, 1916 † accepted as Omalaxinae Cossmann, 1916 †
59. Family Pachymelaniidae Bandel & Kowalke, 1999 accepted as Hemisinidae P. Fischer & Crosse, 1891 (unaccepted > junior subjective synonym)
60. Family Paramelaniidae J. E. S. Moore, 1898 accepted as Hauttecoeuriinae Bourguignat, 1885
61. Family Potadomatidae Pilsbry & Bequaert, 1927 accepted as Pachychilidae P. Fischer & Crosse, 1892
62. Family Prisciphoridae Bandel, Gründel & P. A. Maxwell, 2000 † accepted as Eumetulinae A. N. Golikov & Starobogatov, 1975
63. Family Pyrazidae Hacobjan, 1972 accepted as Batillariidae Thiele, 1929
64. Family Reynellonidae Iredale, 1917 accepted as Pickworthiinae Iredale, 1917
65. Family Rumellidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
66. Family Spekiidae Ancey, 1906 accepted as Hauttecoeuriinae Bourguignat, 1885
67. Family Strepomatidae Haldeman, 1864 accepted as Pleuroceridae P. Fischer, 1885 (1863)
68. Family Styliferinidae Bandel, 1992 accepted as Litiopidae Gray, 1847 (not available: no description)
69. Family Syrnolopsidae Bourguignat, 1890 accepted as Hauttecoeuriinae Bourguignat, 1885
70. Family Telescopiidae J. K. Allan, 1950 accepted as Potamididae H. Adams & A. Adams, 1854
71. Family Tenagodidae Gill, 1871 accepted as Siliquariidae Anton, 1838
72. Family Terebrellidae Delpey, 1941 † accepted as Metacerithiidae Cossmann, 1906 † (invalid: type genus a junior homonym )
73. Family Tiphobiidae Bourguignat, 1886 accepted as Hauttecoeuriinae Bourguignat, 1885
74. Family Vermiculariidae Dall, 1915 accepted as Turritellinae Lovén, 1847
75. Family Cerithioidea incertae sedis (temporary name)

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