Heterochromis

Heterochromis is a genus of cichlid fish in the order Perciformes. It is the only genus of the subfamily Heterochromidinae, and contains a single species, Heterochromis multidens, which is endemic to the Congo River Basin in Central Africa. The relationships of Heterochromis to other cichlids have long been controversial, with several morphological features suggesting that it is more closely related to American cichlids than to other African species.^[2] Molecular studies have given contradictory results. The most comprehensive analysis done to date found more support for relationship to African cichlids, but could not conclusively reject a relationship to the American clade.^[3]

Heterochromis
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cichliformes
Family:	Cichlidae
Subfamily:	Heterochromidinae Kullander, 1998
Genus:	Heterochromis Regan, 1922
Species:	H. multidens
Binomial name
Heterochromis multidens (Pellegrin, 1900)

It can reach a total length of 29.5 cm (11.6 in). This species is probably a substrate spawner and in older males a hump may develop on the head.^[4]