| Species | Name Used in Reference |
|---|---|
| Catostomus catostomus (Forster, 1773) | Catostomus catostomus catostomus (p. 3,5) |
| Catostomus columbianus (Eigenmann & Eigenmann, 1893) | Catostomus columbianus (p. 3,5) |
| Catostomus macrocheilus Girard, 1856 | Catostomus macrocheilus (p. 3,5) |
| Catostomus platyrhynchus (Cope, 1874) | Catostomus platyrhynchus (p. 5) |
| Couesius plumbeus (Agassiz, 1850) | Couesius plumbeus (p. 3,7) |
| Mylocheilus caurinus (Richardson, 1836) | Mylocheilus caurinus (p. 3) |