| Species | Name Used in Reference |
|---|---|
| Ichthyomyzon castaneus Girard, 1858 | Ichthyomyzon castaneus (p. 26-27) |
| Ichthyomyzon fossor Reighard & Cummins, 1916 | Ichthyomyzon fossor (p. ) |
| Ichthyomyzon unicuspis Hubbs & Trautman, 1937 | Ichthyomyzon unicuspis (p. ) |
| Lethenteron appendix (DeKay, 1842) | Lampetra appendix (p. ) |
| Petromyzon marinus Linnaeus, 1758 | Petromyzon marinus (p. ) |