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

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