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| No. | Valid Name | Author | English Name |
| 1. | Lethenteron alaskense | Vladykov & Kott, 1978 | Alaskan brook lamprey |
| 2. | Lethenteron appendix | (DeKay, 1842) | American brook lamprey |
| 3. | Lethenteron camtschaticum | (Tilesius, 1811) | Arctic lamprey |
| 4. | Lethenteron kessleri | (Anikin, 1905) | Siberian brook lamprey |
| 5. | Lethenteron mitsukurii | (Hatta, 1901) | |
| 6. | Lethenteron ninae | Naseka, Tuniyev & Renaud, 2009 | Western Transcaucasian lamprey |
| 7. | Lethenteron reissneri | (Dybowski, 1869) | Far Eastern brook lamprey |