Relict Splitfin
Xenoophorus captivus
- Endangered
- Card rarity: Epic
- Fish

The relict splitfin is a species of splitfin endemic to the Pánuco River system in Mexico. It feeds on algae. This species grows to up to 6 centimetres (2.4 in) in length. It is found in the aquarium trade. It is the only known member of its genus.
Classification
- Class
- Actinopterygii
- Order
- Cyprinodontiformes
- Family
- Goodeidae
- Genus
- Xenoophorus