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| No. | Valid Name | Author | English Name |
| 1. | Entosphenus folletti | Vladykov & Kott, 1976 | Northern California brook lamprey |
| 2. | Entosphenus lethophagus | (Hubbs, 1971) | Pit-Klamath brook lamprey |
| 3. | Entosphenus macrostoma | (Beamish, 1982) | Vancouver lamprey |
| 4. | Entosphenus minimus | (Bond & Kan, 1973) | Miller Lake lamprey |
| 5. | Entosphenus similis | Vladykov & Kott, 1979 | Klamath river lamprey |
| 6. | Entosphenus tridentatus | (Richardson, 1836) | Pacific lamprey |