n = 11
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Ptychocheilus gracilis | Agassiz & Pickering, 1855 | Ptychocheilus oregonensis | Leuciscidae | Northern pikeminnow |
| Ptychocheilus grandis | (Ayres, 1854) | Ptychocheilus grandis | Leuciscidae | Sacramento pikeminnow |
| Ptychocheilus harfordi | Jordan & Gilbert, 1881 | Ptychocheilus grandis | Leuciscidae | Sacramento pikeminnow |
| Ptychocheilus lucidus | Girard, 1856 | Ptychocheilus lucius | Leuciscidae | Colorado pikeminnow |
| Ptychocheilus lucius | Girard, 1856 | Ptychocheilus lucius | Leuciscidae | Colorado pikeminnow |
| Ptychocheilus major | Agassiz, 1855 | Ptychocheilus grandis | Leuciscidae | Sacramento pikeminnow |
| Ptychocheilus oregonense | (Richardson, 1836) | Ptychocheilus oregonensis | Leuciscidae | Northern pikeminnow |
| Ptychocheilus oregonensis | (Richardson, 1836) | Ptychocheilus oregonensis | Leuciscidae | Northern pikeminnow |
| Ptychocheilus rapax | Girard, 1856 | Ptychocheilus oregonensis | Leuciscidae | Northern pikeminnow |
| Ptychocheilus umpquae | Snyder, 1908 | Ptychocheilus umpquae | Leuciscidae | Umpqua pikeminnow |
| Ptychocheilus vorax | Girard, 1856 | Gila robusta | Leuciscidae | Roundtail chub |