1. Subfamily Limnodriloidinae Erséus, 1982
   1. Genus Limnodriloides Pierantoni, 1903
   2. Genus Smithsonidrilus Brinkhurst, 1966
   3. Genus Tectidrilus Erséus, 1982
   4. Genus Thalassodrilides Brinkhurst & Baker, 1979
   5. Genus Bohadschia Hrabe, 1971 accepted as Limnodriloides Pierantoni, 1903
   6. Genus Limnodriloideds Pierantoni, 1904 accepted as Limnodriloides Pierantoni, 1903 (Lapsus calami)
2. Subfamily Naidinae Ehrenberg, 1831
   1. Genus Amphichaeta Tauber, 1879
   2. Genus Chaetogaster von Baer, 1827
   3. Genus Nais Müller, 1774
   4. Genus Ophidonais Gervais, 1838
   5. Genus Paranais Czerniavsky, 1881
   6. Genus Ripistes Dujardin, 1842
   7. Genus Slavina Vejdovský, 1884
   8. Genus Stylaria Lamarck, 1816
   9. Genus Uncinais Levinsen, 1884
   10. Genus Vejdovskyella Michaelsen, 1903
   11. Genus Bohemilla Vejdovský, 1884 accepted as Vejdovskyella Michaelsen, 1903 (Synonym)
   12. Genus Blanonais Gervais, 1838 (uncertain > nomen dubium, unused, possibly nomen oblitum, but would be senior to Paranais Czerniavsky, 1881 if they are synonyms)
3. Subfamily Phallodrilinae Brinkhurst, 1971
   1. Genus Abyssidrilus Erséus, 1992
   2. Genus Adelodrilus Cook, 1969
   3. Genus Aktedrilus Knöllner, 1935
   4. Genus Atlantidrilus Erséus, 1982
   5. Genus Bathydrilus Cook, 1970
   6. Genus Coralliodrilus Erséus, 1979
   7. Genus Gianius Erséus, 1992
   8. Genus Inanidrilus Erséus, 1979
   9. Genus Inermidrilus Erséus, 1992
   10. Genus Mexidrilus Erséus, 1992
   11. Genus Olavius Erséus, 1984
   12. Genus Paraktedrilus Erséus, 1992
   13. Genus Pectinodrilus Erséus, 1992
   14. Genus Phallodrilus Pierantoni, 1902
   15. Genus Pirodrilus Erséus, 1992
   16. Genus Spiridion Knöllner, 1935
   17. Genus Thalassodrilus Brinkhurst, 1963
   18. Genus Adelodriloides Cook, 1970 accepted as Adelodrilus Cook, 1969 (synonym)
   19. Genus Bacescuella Hrabe, 1973 accepted as Aktedrilus Knöllner, 1935 (Synonym)
   20. Genus Macroseta Erséus, 1975 accepted as Bathydrilus Cook, 1970 (Synonym)
4. Subfamily Rhyacodrilinae Hrabě, 1963
   1. Genus Branchiura Beddard, 1892
   2. Genus Heterodrilus Pierantoni, 1902
   3. Genus Monopylephorus Levinsen, 1884
   4. Genus Rhyacodrilus Bretscher, 1901
5. Subfamily Tubificinae Claus, 1876
   1. Genus Baltidrilus Timm, 2013
   2. Genus Christerius Holmquist, 1985
   3. Genus Clitellio Savigny, 1822
   4. Genus Ilyodrilus Eisen, 1879
   5. Genus Isochaetides Hrabĕ, 1966
   6. Genus Limnodrilus Claparède, 1862
   7. Genus Potamothrix Vejdovský & Mrázek, 1903
   8. Genus Psammoryctides Hrabe, 1964
   9. Genus Tubifex Lamarck, 1816
   10. Genus Tubificoides Lastočkin, 1937
   11. Genus Euilyodrilus Brinkhurst, 1963 accepted as Potamothrix Vejdovský & Mrázek, 1903 (Synonym)
   12. Genus Heterochaeta Claparède, 1863 accepted as Baltidrilus Timm, 2013 (junior homonym of Heterochaeta Westwood, 1843 (Insecta, Mantodea).)
   13. Genus Peloryctes Leuckart, 1849 accepted as Clitellio Savigny, 1822 (Synonym)
   14. Genus Psammoryctes Vejdovský, 1876 accepted as Psammoryctides Hrabe, 1964 (Synonym)
   15. Genus Hemitubifex Eisen, 1879 (uncertain > taxon inquirendum)
   16. Genus Isochaeta Pointner, 1911 (uncertain > nomen dubium)
   17. Genus Peloscolex Leidy, 1852 (uncertain > nomen dubium)
6. Subfamily Branchiurinae Hrabĕ, 1966 accepted as Rhyacodrilinae Hrabě, 1963
7. Subfamily Chaetogastrinae Sperber, 1948 accepted as Naidinae Ehrenberg, 1831 (Erséus et al. (2017) showed that Chaetogastrinae are nested within Naidinae (sensu Sperber) making the latter subfamily paraphyletic if Chaetogastrinae are maintained)

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