Hyphessobrycon heterorhabdus (Ulrey, 1894)
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
Hyphessobrycon heterorhabdus, the flag tetra or Belgian flag tetra, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. This fish is distinguished by its vibrant coloration and patterns, which have contributed to its popularity in the aquarium trade.
Wikipedia contributors, Hyphessobrycon heterorhabdus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:51:13.616556+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Hyphessobrycon heterorhabdus (Ulrey, 1894)
- Name authority
- (Ulrey, 1894)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Characiformes
- Family
- Acestrorhamphidae
- Genus
- Hyphessobrycon
- 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
- subfamilyHyphessobryconinae Lima, Carvalho & Faria, 2024
- genusHyphessobrycon Durbin, 1908
- speciesHyphessobrycon heterorhabdus (Ulrey, 1894)
Close classified relatives
These entries share the source’s genus, Hyphessobrycon. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hyphessobrycon acaciae García-Alzate, Román-Valencia & Prada-Pedreros, 2010 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon amandae Géry & Uj, 1987 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon amapaensis Zarske & Géry, 1998 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon auca Almirón, Casciotta, Bechara & Ruíz Díaz, 2004 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon bifasciatus Ellis, 1911 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon boulengeri (Eigenmann, 1907) | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon cachimbensis Travassos, 1964 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon catableptus (Durbin, 1909) | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon chocoensis García-Alzate, Román-Valencia & Taphorn, 2013 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon clavatus Zarske, 2015 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon coelestinus Myers, 1929 | AcestrorhamphidaeChordata | Accepted speciesExtinction status not supplied |
| Hyphessobrycon columbianus Zarske & Géry, 2002 | AcestrorhamphidaeChordata | 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 |
|---|---|
| Tetragonopterus heterorhabdus Ulrey, 1894 Ulrey, 1894 | 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=1467889 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:3NRXS. Classification follows source parent identifiers. English common names may vary by region.