Sparidae is a family of ray-finned fishes belonging to the order Spariformes, the sea breams and porgies, although they were traditionally classified in the order Perciformes. They are found in shallow temperate and tropical waters around the world and are demersal carnivores.

The red steenbras is a species of fish in the family Sparidae and the only known member of the monospecific genus Petrus. This species is endemic to South Africa. The species' population has been depleted by overfishing in African waters and it has been classified as an endangered species by the International Union for Conservation of Nature.