Heros (fish)

{{Short description|Genus of fishes}}

{{Automatic_taxobox

| image = Rotruecken-Augenfleck-Buntbarsch Heros efasciatus Tierpark Hellabrunn-1.jpg

| image_caption = Heros sp. Rotkeil

| taxon = Heros

| authority = Heckel, 1840

| type_species = Heros severus

| type_species_authority = Heckel, 1840

}}

Heros is a genus of cichlids native to the Amazon, Orinoco and Essequibo River basins in South America.Staeck, W. & Schindler, I. (2015): Description of a new Heros species (Teleostei, Cichlidae) from the Rio Orinoco drainage and notes on Heros severus Heckel, 1840. Bulletin of Fish Biology, 15 (1/2): 121-136. They were previously included in the genus Cichlasoma before its restriction to the distinct group of "Port Cichlids."

The Heros species most commonly encountered in the aquarium trade are fish referable to the species Heros efasciatus. However, the trade name generally used is "Severum Cichlids." Trade fish are very often line bred specimens of color sports such as "Super Red Severums" or "Gold Severums." The provenance of these is not clear, but they seem to have been derived from the base "Green Severum" form that is most closely identified with H. efasciatus.

Species

There are currently five recognized species in this genus:{{FishBase genus | genus = Heros| month = January | year = 2017}}

class="wikitable sortable"

!Image !! Name !! Distribution

120pxHeros efasciatus Heckel, 1840Amazon basin
120pxHeros liberifer Staeck & I. Schindler, 2015Orinoco basin in South America
120pxHeros notatus (Jardine, 1843)Rio Negro and Essequibo River in South America
120pxHeros severus Heckel, 1840upper Orinoco and upper Rio Negro basins in South America
Heros spurius Heckel, 1840Guaporé River drainage in the Amazon basin

Many authorities also cite a previously described species, Heros appendiculatus. It has a form quite distinct from H. efasciatus but was synonymized with H. efasciatus by Dr. Sven O. Kullander. Another color form, Heros sp. Rotkeil ("Red Shoulder") is thought by hobby specialists to represent an undescribed Heros species.

References