The red shiner or red-horse minnow (Cyprinella lutrensis) is a North American species of freshwater fish in the family Cyprinidae.

[2] In addition to spawning in crevices like other members of the genus Cyprinella, red shiners also broadcast their eggs and attach them to rocks or vegetation.

[6] Red shiners are found naturally in a variety of aquatic habitats, including backwaters, creek mouths, streams containing sand and silt substrates, riffles, and pools.

These include habitats degraded by human disturbance, and those with poor water quality (such as polluted waterways), natural physiochemical extremes, and seasonally intermittent flows.

[11] Although the species is overall widespread and common, the subspecies from Maravillas Creek in Texas (Cyprinella lutrensis blairi) became extinct in the late 1950s due to competition from the invasive plains killifish.