Gnathochromis

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Gnathochromis
Gnathochromis premaxillaris.jpg
G. permaxillaris
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Tribe: Limnochromini
Genus: Gnathochromis
Poll, 1981
Type species
Limnochromis permaxillaris

Gnathochromis is a small genus of cichlid fish endemic to the Lake Tanganyika basin in East Africa.

The two species are distantly related (G. permaxillaris close to other limnochromines; G. pfefferi close to the tropheines) and as presently defined Gnathochromis is polyphyletic. [1]

Species

There are currently two recognized species in this genus: [2]

Related Research Articles

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<i>Julidochromis</i> Genus of fishes

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<i>Cyphotilapia frontosa</i> Species of fish

Cyphotilapia frontosa, also called the front cichlid and frontosa, is an east African species of fish endemic to Lake Tanganyika. The genus name is a combination of the Ancient Greek "cypho-", meaning "curved", and tilapia, which means "fish" in a local dialect. The species name frontosa is a reference to its relatively large forehead.

<i>Chalinochromis</i> Genus of fishes

Chalinochromis is a small and disputed cichlid genus from the subfamily Pseudocrenilabrinae known in common parlance as “Stripey Boi”. These ray-finned fishes are endemic to Lake Tanganyika in the East African Rift. The scientific name refers to the bridle-like markings across the heads of members of this genus. They have specialized jaws enabling them to feed on sponges.

<i>Tropheus</i> Genus of fishes

Tropheus is a small genus of at least six species of cichlids endemic to Lake Tanganyika in East Africa. The genus is widespread across all regions of Lake Tanganyika, from Burundi in the north to Zambia in the south. Males and females are relatively similar in color, with only subtle sexual dimorphism in the form of the male's larger size. All species are maternal mouthbrooders, with the females caring for their eggs and fry in their mouths; this characteristic provides their generic name, Tropheus, which comes from the Greek trophos, which means "to nurse" or, according to Boulenger, "one who rears, brings up, educates". The genus is fished lightly by the local population, but has never become a staple food fish due to its relatively small size and its habitat, which enables it to dart between rocks when threatened.

Greenwoodochromis is a small genus of cichlid fish that are endemic to Lake Tanganyika in Africa. It is the only genus in the monotypic tribe Greenwoodochromini, however, some authorities have synonymised the Greenwoodochromini with the tribe Limnochromini.

<i>Bathybates</i> Genus of fishes

Bathybates is a genus of piscivorous cichlids endemic to Lake Tanganyika in East Africa. The genus includes both pelagic species that mainly feed on Tanganyika sardines and benthic species that mainly feed on other cichlids. They are some of the deepest-living cichlids, regularly occurring down to 200 m (660 ft).

Haplochromine

The haplochromine cichlids are a tribe of cichlids in subfamily Pseudocrenilabrinae called Haplochromini. This group includes the type genus (Haplochromis) plus a number of closely related genera such as Aulonocara, Astatotilapia, and Chilotilapia. They are endemic to eastern, southern and northern Africa, except for Astatotilapia flaviijosephi in the Middle East. A common name in a scientific context is East African cichlids – while they are not restricted to that region, they are the dominant Cichlidae there. This tribe was extensively studied by Ethelwynn Trewavas, who made major reviews in 1935 and 1989, at the beginning and at the end of her career in ichthyology. Even today, numerous new species are being described each year.

<i>Eretmodus</i> Genus of fishes

Eretmodus is a genus of cichlids endemic to Lake Tanganyika in East Africa.

<i>Rhamphochromis</i> Genus of fishes

Rhamphochromis is a genus of East African haplochromine cichlids endemic to the Lake Malawi basin, also including Lake Malombe, Lake Chilingali, Chia Lagoon and upper Shire River. They mainly occur in offshore open waters, but a few species also near the coast. They are piscivores that typically feed on lake sardines and small utaka cichlids.

<i>Grammatotria</i> Genus of fishes

Grammatotria lemairii is a species of cichlid endemic to Lake Tanganyika in East Africa where it prefers areas with sandy substrates. This species can reach a length of 26 centimetres (10 in) TL. It is currently the only known member of its genus. The species is occasionally kept as an aquarium fish. The specific name honours Lieutenant Charles Lemaire (1863-1925) who was the leader of the Congo Free State Expedition, which collected specimens of fishes at Lake Tanganyika, including the type of G. lemairii.

<i>Reganochromis calliurus</i>

Reganochromis calliurus is a species of cichlid endemic to Lake Tanganyika in East Africa. It lives over a sandy substrate in deeper coastal waters, to depths of at least 60 m (200 ft). Its preferred diet consists mostly of shrimp. It can reach a total length of 15 cm (5.9 in). This fish can also be found in the aquarium trade. It is currently the only known member of its genus.

Giant cichlid Species of fish

The giant cichlid, also known as the emperor cichlid, is a species of fish in the family Cichlidae, endemic to Lake Tanganyika in Africa. It is the only member of its genus Boulengerochromis and tribe Boulengerochromini.

<i>Gnathochromis permaxillaris</i> Species of fish

Gnathochromis permaxillaris is a species of African fish in the family Cichlidae. It is endemic to relatively deep waters in Lake Tanganyika in the countries of Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. It is widespread in the lake, but occurs in low densities. It has been recorded as deep as 200 m (660 ft), even in waters virtually devoid of oxygen.

<i>Gnathochromis pfefferi</i> Species of fish

Gnathochromis pfefferi is an African species of fish in the family Cichlidae. It is endemic to Lake Tanganyika and its slow-flowing tributaries in the countries of Burundi, the Democratic Republic of the Congo, Tanzania and Zambia. It is common and widespread. This cichlid is found in relatively shallow waters, typically over soft bottoms in places with aquatic grasses.

Pseudocrenilabrinae

The Pseudocrenilabrinae are a subfamily in the cichlid family of fishes to which, according to a study from 2004, includes all the Middle Eastern and African cichlids with the exception of the unusual Heterochromis multidens and the Malagasy species. This subfamily includes more than 1,100 species. Previous authors recognized additional African subfamilies, e.g. the Tilapiinae of Hoedeman (1947), Tylochrominae of Poll (1986), or Boulengerochrominae of Tawil (2001).

Cyprichromini

Cyprichromini is a tribe of African cichlids, containing seven species in two genera: Cyprichromis and Paracyprichromis. Most species are endemic to Lake Tanganyika; only C. microlepidotus has also been seen in eastern Tanzania.

<i>Cyphotilapia gibberosa</i> Species of fish

Cyphotilapia gibberosa is a species of fish in the cichlid family, one of two species in the genus Cyphotilapia. Native to Lake Tanganyika in East Africa, it was described in 2003 nearly 100 years after its congener, C. frontosa. This species is a maternal mouth brooder.

References

  1. Duftner; Koblmüller; and Sturmbauer (2005.) Evolutionary Relationships of the Limnochromini, a Tribe of Benthic Deepwater Cichlid Fish Endemic to Lake Tanganyika, East Africa. J Mol Evol 60: 277–289. doi: 10.1007/s00239-004-0017-8.
  2. Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Gnathochromis in FishBase . February 2013 version.