1. Subfamily Assimineinae H. Adams & A. Adams, 1856
   1. Genus Angustassiminea T. Habe, 1943
   2. Genus Assiminea J. Fleming, 1828
   3. Genus Austropilula Thiele, 1927
   4. Genus Aviassiminea H. Fukuda & Ponder, 2003
   5. Genus Conassiminea H. Fukuda & Ponder, 2006
   6. Genus Cryptassiminea H. Fukuda & Ponder, 2005
   7. Genus Euassiminea Heude, 1882
   8. Genus Macrassiminea Thiele, 1927
   9. Genus Ovassiminea Thiele, 1927
   10. Genus Pseudomphala Heude, 1882
   11. Genus Sculptassiminea Thiele, 1927
   12. Genus Xenassiminea H. Fukuda, 2023
   13. Genus Assemania Dollfus, 1912 accepted as Assiminea J. Fleming, 1828 (unjustified emendation)
   14. Genus Assimania accepted as Assiminea J. Fleming, 1828 (incorrect spelling of genus name)
   15. Genus Assiminia J. Fleming, 1828 accepted as Assiminea J. Fleming, 1828 (alternative original spelling [used in the index p. 557])
   16. Genus Syncera J. E. Gray, 1821 (unaccepted > nomen nudum)
2. Subfamily Ekadantinae Thiele, 1929
   1. Genus Acmella W. T. Blanford, 1869
   2. Genus Cavernacmella T. Habe, 1942
   3. Genus Cyclotropis Tapparone Canefri, 1883
   4. Genus Ekadanta H. S. Rao, 1928
   5. Genus Metassiminea Thiele, 1927
   6. Genus Optediceros Leith, 1853
   7. Genus Paludinella L. Pfeiffer, 1841
   8. Genus Rugapedia H. Fukuda & Ponder, 2004
   9. Genus Solenomphala Heude, 1882
   10. Genus Taiwanassiminea Kuroda & T. Habe, 1950
   11. Genus Assiminella Monterosato, 1906 accepted as Paludinella L. Pfeiffer, 1841 (unnecessary substitute name for Paludinella L. Pfeiffer, 1841)
   12. Genus Dramelia Iredale, 1941 accepted as Acmella W. T. Blanford, 1869 (junior synonym)
   13. Genus Paludinassiminea Matsubayashi & Habe, 1990 accepted as Solenomphala Heude, 1882 (unavailable name: no type species designated)
3. Genus Laternoides W. Yu & Y.-H. Xi, 1977 †
4. Genus Madgeaconcha O. L. Griffiths & Florens, 2004
5. Genus Naggsiaconcha O. L. Griffiths & Florens, 2004
6. Subfamily Omphalotropidinae Thiele, 1927
   1. Genus Allepithema Tomlin, 1931
   2. Genus Anaglyphula B. Rensch, 1932
   3. Genus Atropis Pease, 1871
   4. Genus Austroassiminea Solem, E.-L. Girardi, Slack-Smith & Kendrick, 1982
   5. Genus Balambania Crosse, 1891
   6. Genus Chalicopoma Möllendorff, 1894
   7. Genus Conacmella Thiele, 1925
   8. Genus Crossilla Thiele, 1927
   9. Genus Cyclomorpha Pease, 1871
   10. Genus Ditropisena Iredale, 1933
   11. Genus Duritropis Iredale, 1944
   12. Genus Electrina Baird, 1850
   13. Genus Eussoia Preston, 1912
   14. Genus Fijianella C. M. Cooke & Clench, 1943
   15. Genus Garrettia Paetel, 1873
   16. Genus Kubaryia Clench, 1948
   17. Genus Leucostele Thiele, 1927
   18. Genus Limborelia Iredale, 1944
   19. Genus Lyrotropis Solem, 1959
   20. Genus Nesopoma Clench, 1958
   21. Genus Omphalotropis L. Pfeiffer, 1851
   22. Genus Opinorelia Iredale, 1944
   23. Genus Paludinellassiminea Habe, 1994
   24. Genus Ponapella Clench, 1946
   25. Genus Pseudassiminea Thiele, 1927
   26. Genus Pseudocyclotus Thiele, 1894
   27. Genus Pseudogibbula Dautzenberg, 1891
   28. Genus Quadrasiella Möllendorff, 1894
   29. Genus Rapanella C. M. Cooke & Clench, 1943
   30. Genus Rupacilla Thiele, 1927
   31. Genus Schuettiella Brandt, 1974
   32. Genus Setaepoma Clench, 1955
   33. Genus Spiratropis Kobelt & Möllendorff, 1900
   34. Genus Suterilla Thiele, 1927
   35. Genus Sychnotropis Möllendorff, 1898
   36. Genus Telmosena Iredale, 1944
   37. Genus Thaanumella Clench, 1946
   38. Genus Turbacmella Thiele, 1927
   39. Genus Tutuilana Hubendick, 1952
   40. Genus Wrayanna Clench, 1948
   41. Genus Adelomorpha Tapparone Canefri, 1886 accepted as Pseudocyclotus Thiele, 1894 (Invalid: Junior homonym of Adelomorpha Snellen, 1885 [Lepidoptera])
   42. Genus Diadema Pease, 1868 accepted as Garrettia Paetel, 1873 (invalid: junior homonym of Diadema Gray, 1825)
   43. Genus Heteropoma Möllendorff, 1894 accepted as Allepithema Tomlin, 1931 (invalid: junior homonym of Heteropoma Benson, 1856; Allepithema is a replacement name)
   44. Tribe Pseudocyclotini Thiele, 1929 accepted as Omphalotropidinae Thiele, 1927
   45. Genus Scalinella Pease, 1868 accepted as Omphalotropis L. Pfeiffer, 1851
   46. Genus Stenotropis Kobelt & Möllendorff, 1898 accepted as Omphalotropis (Stenotropis) Kobelt & Möllendorff, 1898 represented as Omphalotropis L. Pfeiffer, 1851 (unaccepted > junior subjective synonym)
7. Genus Septariellina Bequaert & Clench, 1936
8. Genus Valvatorbis Bequaert & Clench, 1936
9. Subfamily Adelomorphinae Kobelt, 1906 accepted as Omphalotropidinae Thiele, 1927 (invalid: type genus a junior homonym of Adelomorpha Snellen, 1885 [Lepidoptera])
10. Subfamily Garrettiinae Kobelt, 1906 accepted as Omphalotropidinae Thiele, 1927 (Omphalotropidinae given precedence over Garrettiinae by ICZN Opinion 973.)
11. Subfamily Thaanumellinae Clench, 1946 accepted as Omphalotropidinae Thiele, 1927
12. Genus Assimineidae incertae sedis (temporary name)

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