Geophaginae

Geophaginae
A dwarf cichlid (Apistogramma agassizii) above, and an eartheater (Geophagus brasiliensis) below
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Perciformes
Family:	Cichlidae
Subfamily:	Geophaginae Haseman, 1911
Genera
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The Geophaginae are a subfamily of cichlid fishes from South America, where they are found as far west as the Andes and as far south as northern Argentina. The subfamily includes about 160 species. A single species, Geophagus crassilabris, is from southernmost Central America.

For aquaristic purposes, the subfamily can be divided into two groups based on size, appearance, and to some extent behavior. This grouping, however, does not reflect the phylogenetic relationships of these genera within the geophagine clade:

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Wikipedia