Geophagini

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Geophagini
Geophagus brasiliensis c01.jpg
Geophagus brasiliensis
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Subfamily: Cichlinae
Tribe: Geophagini
Haseman, 1911
Type genus
Geophagus
Heckel, 1840

Geophagini is a tribe of cichlids from the subfamily Cichlinae, the American cichlids. It is the sister taxon to the clade which includes the Cichlasomatini and Heroini. 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. [1] Geophagines show morphological and behavioural specialisations to enable them to sift the substrates within their mouths so that they can separate benthic invertebrates from substrates dominated by sand or silt. [2]

Classification

The Geophagini are classified as follows: [1]

Related Research Articles

<i>Cichlasoma</i> Genus of fishes

Cichlasoma is a genus of freshwater fish in the cichlid family. The genus was previously very large, including cichlids from North America, including Central America, and South America.

<i>Crenicichla</i> Genus of fishes

Crenicichla is a genus of cichlids native to South America commonly known as the pike cichlids. They are found in most tropical and subtropical freshwater habitats between the Andes and the Atlantic.

<i>Apistogramma</i> Genus of fishes

Apistogramma is a large genus of freshwater fish in the family Cichlidae found in South America, but also commonly kept in aquariums. They are dwarf cichlids that mostly feed on tiny animals and have breeding behaviors that vary depending on the exact species.

<i>Aequidens</i> Genus of fishes

Aequidens is a genus of fish in the family Cichlidae found in South America. Formerly a wastebasket genus, as presently defined Aequidens is largely restricted to the Amazon Basin, Orinoco Basin and river basins in The Guianas. The only exceptions are A. plagiozonatus which also occurs in the Paraná Basin, and A. tetramerus which also occurs in the Parnaíba River.

<i>Geophagus</i> Genus of fishes

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 often kept in aquariums.

<i>Heros</i> (fish) Genus of fishes

Heros is a genus of cichlids native to the Amazon, Orinoco and Essequibo River basins in South America. They were previously included in the genus Cichlasoma before its restriction to the distinct group of "Port Cichlids."

<i>Bujurquina</i> Genus of fishes

Bujurquina is a genus of cichlid fish endemic to South America. Most species in the genus are restricted to the western Amazon Basin. The only exceptions are B. mariae from the Orinoco Basin, and B. oenolaemus and B. vittata from the Paraguay–Paraná Basin.

<i>Satanoperca</i> Genus of fishes

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 have also been recorded from rapids.

<i>Laetacara</i> Genus of fishes

Laetacara is a small genus of cichlids native to freshwater habitats in tropical and subtropical South America, ranging from the upper Orinoco River basin in Venezuela to the Paraná River basin Argentina. The genus is also collectively known as the smiling acaras. Like all cichlids, Laetacara species have well-developed brood care.

<i>Mesonauta</i> Genus of fishes

Mesonauta, the flag cichlids, is a small genus of cichlids native to the Amazon, Orinoco, Essequibo, Paraná and Paraguay basins in South America. Mesonauta is included in the subfamily Cichlasomatinae. They occur in various freshwater habitats such as streams and lakes, especially in areas with little water movement and aquatic vegetation. They are generally found in small groups that stay near the water surface. To avoid predators, adults may jump out of the water and juveniles mimic leaves.

Cichlasomatinae Subfamily of fishes

The Cichlasomatinae are a subfamily of cichlid fishes, including all ciclids native to the Greater Antilles, United States, Mexico and Central America, and many of the cichlids from South America. The subfamily Cichlasomatinae is often divided into two tribes: Cichlasomatini and Heroini, however some authorities classify these two tribes as part of the wider Neotropical and marginally Nearctic subfamily Cichlinae.

<i>Retroculus</i> Genus of fishes

Retroculus is a genus of cichlids native to tropical South America, where three are native to rivers in southeastern Amazon Basin in Brazil, while the final is native to rivers in Amapá (Brazil) and French Guiana. It is the sole genus included in the subfamily Retroculinae, although some authorities classify this as a tribe, Retroculini, of the subfamily Cichlinae. These rheophilic cichlids are superficially similar to Geophagus.

Cichlinae Subfamily of fishes

The Cichlinae are a subfamily of fishes in the cichlid family, native to South America.

Heroini Tribe of fishes

Heroini is a fish tribe from the Cichlasomatinae subfamily in the cichlid family. All cichlids native to the Greater Antilles, United States, Mexico and northern Central America are members of this tribe. It also includes most cichlid species in southern Central America and several species from South America. A large percentage of its species were formerly placed in the genus Cichlasoma, but have since been moved to other genera.

<i>Andinoacara</i> Genus of fishes

Andinoacara is a genus of fish in the family Cichlidae. The genus was described in 2009. Before this the members of Andinoacara were placed in the "catch-all" genus Aequidens although they are not closely related to the other members of this genus. The genus Andinoacara is restricted to freshwater habitats in northwestern South America and southern Central America. There are no members of the genus in the Amazon Basin.

<i>Apistogramma macmasteri</i> Species of fish

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 Meta River system, a part of the Orinoco basin in Colombia. They grow up to 7 centimetres (2.8 in) in total length.

<i>Apistogramma viejita</i> Species of fish of Colombia

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.

Cichlasomatini Tribe of fishes

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 5 dentary foramina in the lateralis canal system of the head, describing them as closely related to the genus Cichlasoma. Melanie Stiassny suggested that these fishes recognised as a clade by Kullander were divided into two groupings in 1991 which she termed cichlasomines and heroines, Kullander formally raised these to the tribes Cichlasomatini and Heroini of the subfamily Cichlasomatinae in 1999. In other classifications the tribe Cichlasomatini is placed in the subfamily Cichlinae.

Chaetobranchini Tribe of fishes

Chaetobranchini is a tribe of the subfamily Cichlinae, the American cichlids. They are distributed from the river basin of the Orinoco and the Guianas south to the basins of the Río Paraná and Río Paraguay. The two recognised genera of the Chaetobranchini have been classified together with Astronotus in the subfamily Astronotinae but the consensus is that this genus forms the monogeneric tribe, the Astronotini, these two each being one of the seven tribes in Cichlinae.

Biotodoma wavrini, the Orinoco eartheater, is a species of cichlid in the tribe Geophagini, part of the American cichlid subfamily Cichlinae. It is found in the middle and upper Rio Negro drainage in Brazil and Venezuela, and in the Orinoco River basin in Colombia and Venezuela. Its specific name honours the Belgian aristocrat, ethnologist and explorer Marquis Robert de Wavrin de Villers-au-Tertre (1888–1971), who collected the type specimen in 1935.

References

  1. 1 2 Wm. Leo Smith; Prosanta Chakrabarty; John S. Sparks (2008). "Phylogeny, taxonomy, and evolution of Neotropical cichlids (Teleostei: Cichlidae: Cichlinae)" (PDF). Cladistics. 24 (5): 624–641.
  2. Hernán López‐Fernández; Jessica H. Arbour; Kirk. O. Winemiller; Rodney L. Honeycutt (2012). "Testing for Ancient Adaptive Radiations in Neotropical Cichlid Fishes". Evolution. 67 (5): 1321–1337. doi:10.1111/evo.12038. PMID   23617911.