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. They are found in a wide range of freshwater habitats. 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. The largest species reach up to 28 cm (11 in) in standard length. They are mostly kept in aquariums.
Uaru fernandezyepezi is a species of cichlid native to South America where it is found in rivers of the Orinoco basin. This species can reach a length of 24 centimetres (9.4 in) TL. It is also found in the aquarium trade.
The Minckley's cichlid is a species of fish in the family Cichlidae. It is endemic to Cuatro Ciénegas in Coahuila, Mexico. The specific name honours the ichthyologist Wendell L. Minckley (1935-2001) of Arizona State University who studied the ecology of Cuatro Ciénegas.
The redhump eartheater is a species of eartheater cichlid from freshwater habitats in northwestern South America.
Jacques Pellegrin was a French zoologist.
Astatheros macracanthus, the blackthroat cichlid, is a species of cichlid freshwater fish from southern Mexico and northern Central America. It is the only recognized species in the genus Astatheros, but it was originally described in Heros, then for a long period included in Cichlasoma and until 2008 it was typically included in Amphilophus. Several other species have also been placed in Astatheros in the past, but they are now generally placed in Cribroheros. This blackthroat cichlid is omnivorous and reaches up to 25 cm (10 in) in standard length.
Apistogramma macmasteri is a dwarf cichlid in the tribe Geophagini, one of the tribes of the subfamily of American cichlids, the Cichlinae. It is a freshwater fish that lives in the rivers Guaytiquía and Metica in the Meta River system. The Meta river system is a part of the Orinoco basin in Colombia. They live in areas with soft sandy bottom and plenty of dead roots and branches in the water. Plants are uncommon in areas where Apistogramma macmasteri is found.
Apistogramma viejita is a dwarf cichlid in the subfamily Cichlinae, in the tribe Geophagini. It is a benthopelagic freshwater fish that lives in the Meta River and the Orinoco River in Colombia. They grow up to 4.6 cm in standard length.
Herichthys deppii, also known as the Nautla cichlid, is a species of cichlid native to the Nautla and Misantla rivers of Mexico. It reaches a maximum size of 12 centimetres (4.7 in) TL. The specific name honours the German naturalist, explorer and painter, Ferdinand Deppe, (1794-1861) who collected the type specimen.
Nosferatu steindachneri, Steindachner's cichlid, is a species of cichlid endemic to Mexico where it is found in the Tamasopo, Gallinas and Ojo Frio Rivers of the Panuco River basin. It reaches a maximum size of 40.0 centimetres (15.7 in) SL. This species can also be found in the aquarium trade. The specific name honours the Austrian ichthyologist Franz Steindachner (1834-1919).
Jean-Pierre Gosse was a Belgian biologist and ichthyologist.
Rondonacara hoehnei is a species of cichlid fish of the subfamily Cichlinae. This species is endemic to the upper das Mortes River basin in the Araguaia drainage of central Brazil. This species is the only known member of its genus, but it was formerly included in Aequidens. Although not yet rated by the IUCN, it has been suggested that it is seriously threatened and should be considered critically endangered. The specific name honour the collector of the type specimen, the Brazilian botanist Frederico Carlos Hoehne (1882-1959).
The bluemouth cichlid is a species of cichlid fish that is endemic to the Usumacinta River basin in southern Mexico and Guatemala, where it is widely distributed in rivers, creeks and lakes. This species is the only known member of its genus. The specific name honours the French cichlid specialist Jean Claude Nourissat (1942-2003), who collected type of this species. It reaches up to 22 cm (8.7 in) in total length.
Crenicichla geayi, also known as the half-banded pike cichlid, is a species of cichlid native to South America. It is found in the Orinoco River basin and in the Portuguesa River basin. This species reaches a length of 18.4 cm (7.2 in).
Crenicichla vaillanti is a species of cichlid native to South America. It is found in the Essequibo and Mana River basins. This species reaches a length of 12.6 cm (5.0 in).
Crenicichla menezesi is a species of cichlid native to South America. It is found in the Rivers of Maranão, Brazil. This species reaches a length of 18.9 cm (7.4 in).
Crenicichla sveni is a species of cichlid native to South America. It is found in the Orinoco River basin, in the Llanos of Venezuela and Colombia.. This species reaches a length of 25 cm (9.8 in).
Crenicichla britskii is a species of cichlid native to South America. It is found in the Paraná River basin, in the Paraná River drainage upstream from Guaira, Brazil. This species reaches a length of 14.5 cm (5.7 in).
Crenicichla scottii is a species of cichlid native to South America. It is found in the middle and lower parts of the Uruguay River drainage in Argentina, Uruguay and Brazil. This species reaches a length of 16.9 cm (6.7 in).
Crenicichla haroldoi is a species of cichlid native to South America. It is found swimming in the upper Paraná River basin, Brazil. This species reaches a length of 9.8 cm (3.9 in).
