| Species | Name Used in Reference |
|---|---|
| Caspiomyzon wagneri (Kessler, 1870) | Caspiomyzon wagneri (p. 4) |
| Ichthyomyzon castaneus Girard, 1858 | Ichthyomyzon castaneus (p. 4) |
| Ichthyomyzon greeleyi Hubbs & Trautman, 1937 | Ichthyomyzon greeleyi (p. 4) |
| Ichthyomyzon unicuspis Hubbs & Trautman, 1937 | Ichthyomyzon unicuspis (p. 4) |
| Lampetra fluviatilis (Linnaeus, 1758) | Lampetra fluviatilis (p. 4) |
| Lampetra planeri (Bloch, 1784) | Lampetra planeri (p. 4) |
| Lampetra richardsoni Vladykov & Follett, 1965 | Lampetra richardsoni (p. 4) |
| Lethenteron appendix (DeKay, 1842) | Lethenteron appendix (p. 4) |
| Lethenteron camtschaticum (Tilesius, 1811) | Lethenteron camtschaticum (p. 4) |
| Mordacia lapicida (Gray, 1851) | Mordacia lapicida (p. ) |
| Mordacia mordax (Richardson, 1846) | Mordacia mordax (p. 4) |
| Mordacia praecox Potter, 1968 | Mordacia praecox (p. 4) |
| Petromyzon marinus Linnaeus, 1758 | Petromyzon marinus (p. 4) |
| Tetrapleurodon geminis Álvarez, 1966 | Tetrapleurodon geminis (p. 4) |