Guadalupe darter (Percina apristis)

General data
- Main name: Guadalupe darter
- Climates: Subtropical
- Habitat: Freshwater
- Native: North America
- Distribution: Guadalupe
Classification
- Genus: Percina - Roughbelly darters
- Family: Percidae - Perches
- Order: Perciformes - Perches
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes
Description
The Guadalupe darter (Percina apristis) is a small species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is found in the Guadalupe River system in Texas. It prefers fast rocky runs of small to medium-sized rivers. The darter is typically up to 11 cm (4.3 in) in length.