San Marcos Redtail Splitfin
Xenotoca doadrioi
- Critically endangered
- Card rarity: Legendary
- Fish

Xenotoca doadrioi or San Marcos redtail splitfin is a bony fish species in the goodeid family. Until 2016 it was considered to be a variant of the redtail goodeid, X. eiseni, sometimes referred to as the San Marcos variant. A 2016 study by Omar Dominguez-Dominguez, et al. split the redtail goodeid into three separate species: X. eiseni, X. doadrioi and X. lyonsi.
Classification
- Class
- Actinopterygii
- Order
- Cyprinodontiformes
- Family
- Goodeidae
- Genus
- Xenotoca