| Nominal Species (n = 48) | Present allocation (n = 39) | Ref. |
|---|---|---|
| Illinobdella alba Meyer, 1940 | Myzobdella lugubris | 75097 |
| Oxytonostoma artica Johansson, 1898 | Johanssonia arctica | 75097 |
| Branchellion borealis Leigh-Sharpe, 1933 | Branchellion borealis | 19 |
| Arctobdella branchiarum de Silva & Kabata, 1961 | Hemibdella branchiarum | 75097 |
| Malmiana bubali Srivastava, 1966 | Malmiana bubali | 19 |
| Australobdella californica Burreson, 1977 | Austrobdella californica | 75097 |
| Austrobdella californica Burreson, 1977 | Austrobdella californica | 19 |
| Calliobdella carolinensis Sawyer & Chamberlain, 1972 | Calliobdella vivida | 75097 |
| Orientobdella confluens Burreson, 1977 | Orientobdella confluens | 19 |
| Antarcticobdella crozetensis Sawyer, 1972 | Antarcticobdella crozetensis | 3477 |
| Notostomum cyclostomum Johansson, 1898 | Notostomum cyclostomum | 19 |
| Malmiana diminuta Burreson, 1977 | Malmiana diminuta | 19 |
| Illinobdella elongata Meyer, 1940 | Myzobdella lugubris | 75097 |
| Platybdella fabricii Malm, 1863 | Platybdella fabricii | 19 |
| Ichthyobdella funduli Verrill, 1872 | Myzobdella lugubris | 75097 |
| Calliobdella knightjonesi Burreson, 1984 | Calliobdella knightjonesi | 19 |
| Johanssonia kolaensis Selensky, 1914 | Johanssonia kolaensis | 3477 |
| Notostomum laeve Levinsen, 1882 | Notostomum laeve | 19 |
| Cryobdella levigata Harding, 1922 | Cryobdella levigata | 3477 |
| Cryobdella ljadovi Epshtein & Utevsky, 1994 | Cryobdella ljadovi | 3477 |
| Branchellion lobata Moore, 1952 | Branchellion lobata | 19 |
| Calliobdella lophii van Beneden & Hesse, 1863 | Calliobdella lophii | 19 |
| Myzobdella lugubris Leidy, 1851 | Myzobdella lugubris | 19 |
| Illinobdella moorei Meyer, 1940 | Myzobdella lugubris | 75097 |
| Pontobdella muricata Linnaeus, 1758 | Pontobdella muricata | 19 |
| Crangonobdella murmanica Selensky, 1914 | Platybdella fabricii | 75097 |
| Notobdella nototheniae Benham, 1909 | Notobdella nototheniae | 3477 |
| Platybdella olriki Malm, 1863 | Platybdella olriki | 19 |
| Trachelobdella oregonensis Burreson, 1976 | Trachelobdella oregonensis | 19 |
| Oceanobdella pallida Burreson, 1977 | Oceanobdella pallida | 19 |
| Ostreobdella papillata Burreson, 1977 | Ostreobdella papillata | 19 |
| Ostreodbella papillata Burreson, 1977 | Ostreobdella papillata | 75097 |
| Malmiana philotherma Sawyer, Lawler & Overstreet, 1975 | Malmiana philotherma | 19 |
| Calliobdella punctata van Beneden & Hesse, 1863 | Calliobdella lophii | 75097 |
| Platybdella quadrioculata Malm, 1863 | Platybdella quadrioculata | 19 |
| Piscicola rectangulata Levinsen, 1882 | Beringobdella rectangulata | 75097 |
| Illinobdella richardsoni Meyer, 1940 | Myzobdella lugubris | 75097 |
| Bathybdella sawyeri Burreson, 1981 | Bathybdella sawyeri | 8774 |
| Ottoniobdella scorpii Malm, 1863 | Heptacyclus scorpii | 75097 |
| Branchellion spindolaorum Ruiz-Escobar & Oceguera-Figueroa, 2019 | Branchellion spindolaorum | 3477 |
| Branchellion torpedinis Savigny, 1822 | Branchellion torpedinis | 19 |
| Caspiobdella tuberculata Epshtein, 1966 | Caspiobdella tuberculata | 19 |
| Oxytonostoma typica Malm, 1863 | Oxytonostoma typica | 19 |
| Pterobdellina vernadskyi Utevsky, Solod & Utevsky, 2021 | Pterobdellina vernadskyi | 3477 |
| Malmiana virida Burreson, 1977 | Malmiana virida | 19 |
| Pontobdella vosmaeri Apathy, 1888 | Pontobdella vosmaeri | 19 |
| Malmiana yorki Srivastava, 1966 | Malmiana yorki | 19 |
| Piscicola zebra Moore, 1898 | Piscicola zebra | 19 |