Geophagini is a tribe of

cichlid Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this ...

s from the

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...

Cichlinae The Cichlinae are a subfamily of fishes in the cichlid family, native to South America. This subfamily consists of approximately 117 described species as of July 2017. Some authors have suggested that the Cichlinae encompasses all of the Neotr ...

, the American cichlids. It is the sister taxon to the clade which includes the

Cichlasomatini Cichlastomatini is a tribe of cichlids from South America, one of two tribes that make up the subfamily Cichlasomatinae. They were recognised in 1983 as an assemblage by the Swedish ichthyologist Sven O. Kullander by their four rather than five ...

and

Heroini Heroini is a fish tribe from the Cichlasomatinae subfamily in the cichlid family. All cichlids native to the Greater Antilles, United States (southern Texas), Mexico and northern Central America are members of this tribe. It also includes m ...

. Fishes in the Geophagini are distributed from Panama south to Argentina, it is the most speciose of the seven tribes within the Cichlinae and it is subdivided into three sub-tribes, Acarichthyina, Crenicaratina, and Geophagina which together contain over 200 species. Geophagines show morphological and behavioural specialisations to enable them to sift the substrates within their mouths so that they can separate

benthic The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from ancient Greek, βένθος (bénthos), meaning "t ...

invertebrates from substrates dominated by sand or silt.

Classification

The Geophagini are classified as follows: * Subtribe Acarichthyina Kullander, 1998 ** Genus '' Acarichthys'' C. H. Eigenmann, 1912 ** Genus '' Guianacara'' Kullander &

Nijssen Nijssen is a Dutch patronymic surname originating from the given name "Denijs" (DenisPeople with this surname include: ; ;Nijssen * Han Nijssen (1935–2013), Dutch ichthyologist * Sjir Nijssen (born 1938), Dutch computer scientist known for Nij ...

, 1989 * Subtribe Crenicaratina Kullander, 1998 ** Genus '' Biotoecus'' C. H. Eigenmann & C. H. Kennedy, 1903 ** Genus '' Crenicara''

Steindachner Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner describ ...

, 1875 ** Genus '' Crenicichla'' Heckel, 1840 ** Genus '' Dicrossus'' Steindachner, 1875 ** Genus '' Teleocichla'' Kullander, 1988 * Subtribe Geophagina Haseman, 1911 ** Genus '' Apistogramma''

Regan The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri' ...

, 1913 ** Genus '' Apistogrammoides'' Meinken, 1965 ** Genus '' Biotodoma'' C. H. Eigenmann & C. H. Kennedy, 1903 ** Genus '' Geophagus'' Heckel, 1840 ** Genus '' Gymnogeophagus'' Miranda-Ribeiro, 1918 ** Genus ''

Mazarunia ''Mazarunia'' is a genus of cichlids from the Mazaruni River, a tributary of the Essequibo River in Guyana. They are dwarf cichlids that do not surpass in length. Species There are three species: * '' Mazarunia charadrica'' López-Fernández, ...

'' Kullander, 1990 ** Genus '' Mikrogeophagus'' Meulengracht-Madsen, 1968 ** Genus ''

Satanoperca ''Satanoperca'' is a small genus of cichlids from South America, where they are known from the Orinoco, Essequibo, Nickerie, Amazon and Paraná–Paraguay river basins. They are mainly found in areas with slow-moving waters, but some species h ...

'' Günther, 1862 ** Genus '' Taeniacara'' G. S. Myers, 1935

References

{{taxonbar, from =Q134264 Cichlinae Fish tribes