1. Genus Ambulobdella A. Utevsky & S. Utevsky, 2018
2. Genus Antarcticobdella
3. Genus Austroplatybdellina A. Utevsky, S. Utevsky, Cichocka, Bielecki & Trontelj, 2023
4. Genus Bdellamaris Richardson, 1953
5. Genus Branchellion Savigny, 1822
6. Genus Brumptiana Llewellyn & Knight-Jones, 1984
7. Genus Calliobdella van Beneden & Hesse, 1863
8. Genus Ceratobdella Utevsky & Gordeev, 2015
9. Genus Cottobdella
10. Genus Cryobdellina
11. Genus Cystobranchus Diesing, 1859
12. Genus Dolichobdella Utevsky & Chernyshev, 2012
13. Genus Dollfusobdella Burreson & Williams, 2008
14. Genus Galatheabdella Richardson & Meyer, 1973
15. Genus Ganymedebdella Leigh-Sharpe, 1915
16. Genus Janusion Leigh-Sharpe, 1933
17. Genus Johanssonia Selensky, 1914
18. Genus Leporinabdella Burreson & Williams, 2008
19. Genus Megaliobdella
20. Genus Orientobdella
21. Genus Phyllobdellina
22. Subfamily Piscicolinae Johnston, 1865
    1. Genus Caspiobdella Epshtein, 1966
    2. Genus Limnotrachelobdella Epshtein, 1968
    3. Genus Nototheniobdella A. Utevsky, 1993
    4. Genus Piscicola Blainville, 1818
    5. Genus Trachelobdella Diesing, 1850
23. Subfamily Platybdellinae Epshtein, 1970
    1. Genus Austrobdella Badham, 1916
    2. Genus Bathybdella Burreson, 1981
    3. Genus Beringobdella Caballero, 1974
    4. Genus Crangonobdella Selensky, 1914
    5. Genus Cryobdella Harding, 1922
    6. Genus Glyptonotobdella Sawyer & White, 1969
    7. Genus Hemibdella van Beneden & Hesse, 1863. Revised
    8. Genus Heptacyclus Vasileyev, 1939
    9. Genus Lizabdella A. Utevsky, 2007
    10. Genus Makarabdella Richardson, 1959
    11. Genus Marsipobdella Moore, 1952
    12. Genus Mysidobdella Selensky, 1927
    13. Genus Myzobdella Leidy, 1851
    14. Genus Notobdella Benham, 1909
    15. Genus Notostomum Levinsen, 1882
    16. Genus Oceanobdella Caballero, 1956
    17. Genus Ostreobdella Oka, 1927
    18. Genus Platybdella Malm, 1863
    19. Genus Pterobdella Kaburaki, 1921
    20. Genus Trulliobdella Brinkman, 1947
    21. Genus Abranchus Johansson, 1896 accepted as Oceanobdella Caballero, 1956 (unaccepted > junior homonym, Junior to Abranchus both in Boïé 1824 and Harlan 1825)
    22. Genus Aestabdella Burreson, 1976 accepted as Pterobdella Kaburaki, 1921 (unaccepted > junior subjective synonym)
    23. Genus Arctobdella de Silva & Kabata, 1961 accepted as Hemibdella van Beneden & Hesse, 1863. Revised (unaccepted > junior subjective synonym, subjective synonym)
    24. Genus Carcinobdella Oka, 1910 accepted as Notostomum Levinsen, 1882 (synonym)
    25. Genus Illinobdella Meyer, 1940 accepted as Myzobdella Leidy, 1851 (unaccepted > junior subjective synonym, subjective synonym)
    26. Genus Levinsenia Vasiliev, 1939 accepted as Beringobdella Caballero, 1974 (preoccupied; junior homonym of Levinsenia Mesnil, 1897 (Polychaeta))
    27. Genus Malmiana Strand, 1942 accepted as Heptacyclus Vasileyev, 1939 (synonym)
    28. Genus Notostomobdella Moore & Meyer, 1951 accepted as Notostomum Levinsen, 1882 (synonym)
    29. Genus Ottonia Malm, 1874 accepted as Malmiana Strand, 1942 accepted as Heptacyclus Vasileyev, 1939 (preoccupied)
    30. Genus Platybdella Harding, 1922 accepted as Cryobdella Harding, 1922 (synonym)
    31. Genus Sanguinothus de Silva & Burdon-Jones, 1961 accepted as Crangonobdella Selensky, 1914 (subjective synonym)
    32. Genus Ichthyobdella Blainville, 1827 (uncertain > taxon inquirendum, probably a synonym, but awaiting more information)
24. Genus Pleurobdella
25. Genus Pontobdellina Harding, 1927
26. Subfamily Pontobdellinae Llewellyn, 1966
    1. Genus Mooreobdellina Epshtein, 1972
    2. Genus Oxytonostoma Malm, 1863
    3. Genus Pontobdella Leach, 1815
    4. Genus Stibarobdella Leigh-Sharpe, 1925 accepted as Pontobdella Leach, 1815 (unaccepted > junior subjective synonym, subjective synonym)
27. Genus Pterobdellina Boisen Bennike & Bruun, 1939
28. Genus Richardsonobdella Burreson & Dybdahl, 1989
29. Genus Taimenobdella Epshtein, 1987
30. Genus Trachelobdellina
31. Genus Zeylanicobdella Silva, 1963
32. Genus Pseudobranchellion Apáthy, 1890 accepted as Ozobranchus Quatrefages, 1852 (unaccepted > junior subjective synonym)

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