1. Subfamily Hainotinae Fassio, Bouchet, Schiaparelli & Oliverio, 2022
   1. Genus Hainotis F. Riedel, 2000
   2. Genus Mysticoncha J. K. Allan, 1936
2. Subfamily Lamellariinae A. d'Orbigny, 1841
   1. Genus Calyptoconcha Bouchet & Warén, 1993
   2. Genus Coriocella Blainville, 1824
   3. Genus Djiboutia Vayssière, 1912
   4. Genus Lamellaria Montagu, 1816
   5. Genus Marsenia Oken, 1823
   6. Genus Marseniella Bergh, 1886
   7. Genus Pacifica Fassio, Bouchet & Oliverio, 2022
   8. Genus Variolipallium Fassio, Bouchet & Oliverio, 2022
   9. Genus Chelinotus Swainson, 1840 accepted as Coriocella Blainville, 1824 (unaccepted > junior subjective synonym)
   10. Genus Chelyonotus Herrmannsen, 1846 accepted as Chelinotus Swainson, 1840 accepted as Coriocella Blainville, 1824 (unjustified emendation)
   11. Genus Cryptocella H. Adams & A. Adams, 1853 accepted as Lamellaria Montagu, 1816 (junior objective synonym of Lamellaria)
   12. Genus Echinospira Krohn, 1853 (uncertain)
3. Subfamily Marseniopsinae Fassio, Bouchet, Schiaparelli & Oliverio, 2022
   1. Genus Lamellariopsis Vayssière, 1906
   2. Genus Marseniopsis Bergh, 1886
4. Subfamily Velutininae Gray, 1840
   1. Genus Cartilagovelutina A. N. Golikov & Gulbin, 1990
   2. Genus Ciliatovelutina A. N. Golikov & Gulbin, 1990
   3. Genus Cilifera A. N. Golikov & Gulbin, 1990
   4. Genus Limneria H. Adams & A. Adams, 1851
   5. Genus Marsenina J. E. Gray, 1850
   6. Genus Onchidiopsis Bergh, 1853
   7. Genus Piliscus Lovén, 1859
   8. Genus Pseudosacculus S. Hirase, 1928
   9. Genus Pseudotorellia Warén, 1989
   10. Genus Torellivelutina J. H. McLean, 2000
   11. Genus Velutina J. Fleming, 1820
   12. Genus Capulacmaea M. Sars, 1859 accepted as Piliscus Lovén, 1859
   13. Genus Marvillia [sic] accepted as Limneria H. Adams & A. Adams, 1851 (incorrect subsequent spelling [by Hägg, 1905] of Morvillia Gray, 1857)
   14. Genus Morvillia Gray, 1857 accepted as Limneria H. Adams & A. Adams, 1851
   15. Genus Oithonella Mörch, 1857 accepted as Marsenina J. E. Gray, 1850
   16. Genus Oncidiopsis [sic] accepted as Onchidiopsis Bergh, 1853 (incorrect subsequent spelling [by Paetel, 1875] of Onchidiopsis Bergh, 1853)
   17. Genus Pilidium Middendorff, 1851 accepted as Piliscus Lovén, 1859 (Invalid: junior homonym of Pilidium Forbes & Hanley, 1849)
   18. Genus Sacculus S. Hirase, 1927 accepted as Pseudosacculus S. Hirase, 1928 (non Gosse, 1851)
   19. Genus Velutella Gray, 1847 accepted as Velutina (Velutella) Gray, 1847 represented as Velutina J. Fleming, 1820
5. Subfamily Capulacmaeinae A. N. Golikov & Gulbin, 1980 accepted as Velutininae Gray, 1840
6. Subfamily Marsenininae Odhner, 1913 accepted as Velutininae Gray, 1840
7. Subfamily Onchidiopsinae A. N. Golikov & Gulbin, 1990 accepted as Velutininae Gray, 1840 (unavailable name: no description)
8. Subfamily Pseudosacculinae Kuroda, 1933 accepted as Velutininae Gray, 1840

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