Calamus is a genus of marine ray-finned fishes belonging to the family Sparidae, the seabreams and porgies. Most of the species in this genus are found in the Western Atlantic Ocean, with 2 species occurring in the Eastern Pacific Ocean.

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.