Astyanax anai Angulo, Santos, López, Langeani & McMahan, 2018
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
Astyanax anai is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. This fish is found in Central America. It has a restricted range, inhabiting a handful of Atlantic drainages in Costa Rica and Panama, and is known from locales only up to 100 meters elevation. As an endangered species, A. anai is a point of interest for conservation biologists studying the region. It can be found living sympatrically with other species of Astyanax, but is less common than its relatives.
Specimens of A. anai were frequently mistaken for specimens of Astyanax orthodus before it was recognized as its own species; physically and genetically, the two are very similar. A. anai sports several features not uncommon in the genus, such as silver scales, a humeral spot, and fins in a mixture of yellows and oranges. It also has a distinctive, elongated blotch of pigment on the caudal peduncle that often stretches forwards far enough to reach over the back end of the anal fin.
Wikipedia contributors, Astyanax anai; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:05:25.802319+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Astyanax anai Angulo, Santos, López, Langeani & McMahan, 2018
- Name authority
- Angulo, Santos, López, Langeani & McMahan, 2018
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Characiformes
- Family
- Acestrorhamphidae
- Genus
- Astyanax
- 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
- orderCharaciformes
- suborderCharacoidei
- familyAcestrorhamphidae Eigenmann, 1907
- subfamilyAcestrorhamphinae Eigenmann, 1907
- genusAstyanax Baird & Girard, 1854
- speciesAstyanax anai Angulo, Santos, López, Langeani & McMahan, 2018
Close classified relatives
These entries share the source’s genus, Astyanax. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Astyanax robustus Meek, 1912 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax pirabitira Lucena, Bertaco & Berbigier, 2013 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax superbus Myers, 1942 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax bagual Bertaco & Vigo, 2015 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax ruberrimus Eigenmann, 1913 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax trierythropterus Godoy, 1970 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax henseli de Melo & Buckup, 2006 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax procerus Lucena, Castro & Bertaco, 2013 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax poetzschkei Ahl, 1932 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax saltor Travassos, 1960 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax acatlanensis Schmitter-Soto, 2017 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Astyanax bacalarensis Schmitter-Soto, 2017 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
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.
- Angulo, A., Santos, A. C., López, M., Langeani, F., & Mcmahan, C. D. (2018). A new species ofAstyanax(Characiformes: Characidae) from Costa Rica and Panama, with a key to the lower Central American species of the genus. Journal of Fish Biology, 92. https://doi.org/10.1111/jfb.13626 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:D5CV7. Classification follows source parent identifiers. English common names may vary by region.