Gnathochromis permaxillaris (David, 1936)
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
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.
This species reaches up to 15 cm (5.9 in) in length and has an unusual protractile mouth. It feeds on zooplankton and will shift sand, similar to the distantly related Geophagus eartheaters of South America. Like many other Tanganyika cichlids, it is a mouthbrooder and occasionally seen in the aquarium trade.
Wikipedia contributors, Gnathochromis permaxillaris; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:38:09.127590+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Gnathochromis permaxillaris (David, 1936)
- Name authority
- (David, 1936)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cichliformes
- Family
- Cichlidae
- Genus
- Gnathochromis
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: no · Freshwater: yes · Terrestrial: no. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- orderCichliformes
- familyCichlidae Bonaparte, 1835
- subfamilyPseudocrenilabrinae Fowler, 1934
- genusGnathochromis Poll, 1981
- speciesGnathochromis permaxillaris (David, 1936)
Close classified relatives
These entries share the source’s genus, Gnathochromis. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Gnathochromis pfefferi (Boulenger, 1898) | CichlidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Limnochromis permaxillaris David, 1936 David, 1936 | synonym |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=1525326 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:3GLKS. Classification follows source parent identifiers. English common names may vary by region.