Heros (genus)
Heros is a genus which includes several fish species in the Cichlidae family. They are native to rivers in the Amazon and Orinoco basins in South America. These were often previously included in the "catch-all" genus Cichlasoma.
Most commonly encountered in the aquarium trade is the severum, Heros severus, available commercially in its gold coloration as well as the wild-type green. It is unclear whether aquarium severums are actually Heros severus or whether they are Heros efasciatus hybrids.
Read more about Heros (genus): Species