Retroculus

Retroculus
Retroculus lapidifer
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Perciformes
Family:	Cichlidae
Subfamily:	Retroculinae
Genus:	Retroculus C. H. Eigenmann & W. L. Bray, 1894
Type species
Retroculus boulengeri Eigenmann & Bray, 1894

Retroculus is a genus of cichlids native to tropical South America, where three are native to rivers in southeastern Amazon Basin in Brazil, while the final is native to rivers in Amapá (Brazil) and French Guiana.^[1] It is the sole genus included in the subfamily Retroculinae. These rheophilic cichlids are superficially similar to Geophagus.^[1]

Species

Four recognized species are in this genus:^[2]

• Retroculus acherontos Landim, C. L. R. Moreira & C. A. Figueiredo, 2015^[1]
• Retroculus lapidifer (Castelnau, 1855)
• Retroculus septentrionalis J. P. Gosse, 1971
• Retroculus xinguensis J. P. Gosse, 1971

References

1. Landim, M.I., Moreira, C.R. & Figueiredo, C.A. (2015): Retroculus acherontos, a new species of cichlid fish (Teleostei) from the Rio Tocantins basin. Zootaxa, 3973 (2): 369-380.
2. Froese, Rainer, and Daniel Pauly, eds. (2015). Species of Retroculus in FishBase. April 2015 version.