1. Genus Atriolum Kott, 1983
2. Genus Clitella Kott, 2001
3. Genus Coelocormus Herdman, 1886
4. Genus Didemnum Savigny, 1816
5. Genus Diplosoma Macdonald, 1859
6. Genus Leptoclinides Bjerkan, 1905
7. Genus Lissoclinum Verrill, 1871
8. Genus Polysyncraton Nott, 1892
9. Genus Trididemnum Della Valle, 1881
10. Genus Arenadiplosoma Menker & Ax, 1970 accepted as Diplosoma Macdonald, 1859 (Synonym)
11. Genus Arenodiplosoma Menker & Ax, 1970 accepted as Diplosoma Macdonald, 1859 (Spelling mistake for Arenadiplosoma)
12. Genus Askonides Kott, 1962 accepted as Leptoclinides Bjerkan, 1905 (Synonym)
13. Genus Astellium Giard, 1872 accepted as Diplosoma Macdonald, 1859 (Synonym)
14. Genus Didemnium Savgny, 1816 accepted as Didemnum Savigny, 1816 (Literature misspelling)
15. Genus Didemnoides Drasche, 1883 accepted as Didemnum Savigny, 1816 (Synonym)
16. Genus Didemnopsis Hartmeyer, 1903 accepted as Trididemnum Della Valle, 1881 (synonym)
17. Genus Diplosomoides Herdman, 1886 accepted as Didemnum Savigny, 1816 (Synonym)
18. Genus Echinoclinum Van Name, 1902 accepted as Lissoclinum Verrill, 1871 (Synonym)
19. Genus Hypurgon Sollas, 1903 accepted as Didemnum Savigny, 1816 (Synonym)
20. Genus Leptoclinum Milne Edwards, 1842 accepted as Didemnum Savigny, 1816 (synonym)
21. Genus Lioclinum Verrill, 1871 accepted as Diplosoma Macdonald, 1859 (Synonym)
22. Genus Polysoma Kott, 1983 accepted as Lissoclinum Verrill, 1871 (Synonym)
23. Genus Pseudodidemnum Giard, 1872 accepted as Diplosoma Macdonald, 1859 (Synonym)
24. Genus Pseudodiplosoma accepted as Diplosoma Macdonald, 1859 (Synonym)
25. Genus Sarcodidemnoides Oka & Willey, 1892 accepted as Didemnum Savigny, 1816 (Synonym)
26. Genus Tetradidemnum Della Valle, 1881 accepted as Didemnum Savigny, 1816 (Synonym)
27. Genus Tridentemnum Della Valle, 1881 accepted as Trididemnum Della Valle, 1881 (misspelling)

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