n = 5
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Xenotoca doadrioi | Domínguez-Domínguez, Bernal-Zuñiga & Piller, 2016 | Xenotoca doadrioi | Goodeidae | |
| Xenotoca eiseni | (Rutter, 1896) | Xenotoca eiseni | Goodeidae | Redtail splitfin |
| Xenotoca lyonsi | Domínguez-Domínguez, Bernal-Zuñiga & Piller, 2016 | Xenotoca lyonsi | Goodeidae | |
| Xenotoca melanosoma | Fitzsimons, 1972 | Xenotoca melanosoma | Goodeidae | Black splitfin |
| Xenotoca variata | (Bean, 1887) | Xenotoca variata | Goodeidae | Jeweled splitfin |