The greater redhorse (Moxostoma valenciennesi) is a species of freshwater fish found in northeastern North America.

The greater redhorse is most easily identified by its bright rusty red colored tail fin and the rows of black spots along its sides and back.

It feeds on various bottom dwelling organisms including, microcrustaceans, aquatic and larval insects, detritus, snails, and algae.

The two males will surround the female and perform a shaking motion releasing both the sperm and eggs from said gendered fish.

Because this species is impacted greatly by pollutants, their endangered status may come from a decreased conscientiousness of where wastes are disposed of.

The IGFA world record for the species stands at 12lb 7oz caught from the Sauk River near Melrose, Minnesota in 2005.