Acheilognathus elongatus (Regan, 1908)
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
The elongate bitterling (Acheilognathus elongatus) is a species of freshwater ray-finned fish in the family Acheilognathidae, the bitterlings. It is found only in shallow water areas along the shores of Lake Dianchi in China.
It has a silvery-white body with an olive dorsal surface and a black stripe along the side. It grows to a maximum length of 7.0 centimetres (2.8 in).
The fish is currently listed as critically endangered because its tiny range of 58 km2 (22 sq mi) within Lake Dianchi is threatened due to water pollution, which causes the destruction of its bivalves, which are essential for hatching its eggs. Likewise, artificial dykes and the enclosing of lakes for farmland is causing degradation of its habitat. It had likely disappeared by the 1980s, but further surveys are necessary to confirm its possible extinction.
Wikipedia contributors, Elongate bitterling; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T18:56:41.798632+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Acheilognathus elongatus (Regan, 1908)
- Name authority
- (Regan, 1908)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cypriniformes
- Family
- Cyprinidae
- Genus
- Acheilognathus
- 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
- orderCypriniformes
- familyCyprinidae Rafinesque, 1815
- subfamilyAcheilognathinae Bleeker, 1863
- genusAcheilognathus Bleeker, 1859
- speciesAcheilognathus elongatus (Regan, 1908)
Close classified relatives
These entries share the source’s genus, Acheilognathus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Acheilognathus barbatulus Günther, 1873 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus macromandibularis Doi, Arai & Liu, 1999 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus barbatus Nichols, 1926 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus brevicaudatus Chen & Li, 1987 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus changtingensis Yang, Zhu, Xiong & Liu, 2011 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus coreanus Steindachner, 1892 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus deignani (Smith, 1945) | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus elongatoides Kottelat, 2001 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus fasciodorsalis Nguyen, 2001 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus gracilis Nichols, 1926 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus hondae (Jordan & Metz, 1913) | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Acheilognathus imberbis Günther, 1868 | CyprinidaeChordata | 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 |
|---|---|
| Acanthorhodeus elongatus Regan, 1908 Regan, 1908 | synonym |
| Acanthorhodeus grahami Nichols, 1918 Nichols, 1918 | 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=1017027 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:96GR. Classification follows source parent identifiers. English common names may vary by region.