Kosswigichthys asquamatus Sözer, 1942
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 scaleless killifish or Hazar toothcarp (Kosswigichthys asquamatus) is a species of freshwater fish in the family Aphaniidae. It is the only species in its genus, and is endemic to Lake Hazar in Turkey. It is a pelagic species that comes to shore in spring–early summer to spawn. It is threatened by the falling water levels of Lake Hazar due to water abstraction and reduced rainfall due to climate change.
Wikipedia contributors, Scaleless killifish; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:56:30.559183+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Kosswigichthys asquamatus Sözer, 1942
- Name authority
- Sözer, 1942
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cyprinodontiformes
- Family
- Aphaniidae
- Genus
- Kosswigichthys
- 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
- orderCyprinodontiformes
- familyAphaniidae Hoedeman, 1949
- genusKosswigichthys Sözer, 1942
- speciesKosswigichthys asquamatus Sözer, 1942
Close classified relatives
No other member of this genus is present in the selected snapshot.
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Aphanius asquamatus (Sözer, 1942) (Sözer, 1942) | synonym |
| Lebias asquamatus (Sözer, 1942) (Sözer, 1942) | 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.
- Sözer, F. (1942). Türkiye Cyprinodontid’leri hakkında Contributions à la connaissance des Cyprinodontides de la Turquie. Revue de La Faculté Des Sciences de l’Université d’Instanbul, Série B: Sciences Naturelles, v. 7 (f. 4): 307–316. 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:3RDKT. Classification follows source parent identifiers. English common names may vary by region.