Geophagus


Geophagus is a genus of cichlids that mainly live in South America as far south as Argentina and Uruguay, but a single species, G. crassilabris is from Panama.[1][2] They are found in a wide range of freshwater habitats.[3] They are part of a group popularly known as eartheaters and mostly feed by picking up mouthfuls of sediment to sift out food items such as invertebrates, plant material and detritus.[3] The largest species reach up to 28 cm (11 in) in standard length.[3] They are often kept in aquariums.[4]

Geophagus Surinamensis was an invasive species in Malaysia, recently found in Putrajaya, the populations are now controlled by giant snakeheads.

Some cichlids previously included in this genus have been reallocated to Biotodoma, Gymnogeophagus or Satanoperca.[5] Even with these as separate genera, Geophagus is currently polyphyletic and in need of further taxonomic revision. There are three main groups:[3][6][7][8]

There are currently 32 recognized species in this genus.[1][9] Additionally, plus the species already described in 2022 that are known. The new species of Geophagus naming a cichlid species in 2022


A species in the Geophagus surinamensis complex, a member of Geophagus sensu stricto
Geophagus pyrocephalus also known as Geophagus sp. "orange head" from the Tapajós River. The new species of Geophagus naming a cichlid species in 2022[4]