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Ectrepopterus uruguayensis (Fowler, 1943)

Source-backed taxonomic record

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

Ectrepopterus is a monospecific genus of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. The only species in the genus is Ectrepopterus uruguayensis. Given its restricted range, it is considered a rare fish, and is of note for conservation researchers interested in preserving the biodiversity of the region.

A small fish with silvery-gold scales and yellow fins, E. uruguayensis is characterized by a variety of features, including an incomplete lateral line and eyes wider than the snout is long. Something of particular note is the presence of bony hooks on the fin-rays of the pectoral fin, which is unusual for a characin; other members of Characidae may display these hooks on the pelvic or anal fins, but the pectoral fin is an uncommon location. E. uruguayensis can be found living in syntopy with other characids in the wild, such as the genera Bryconamericus and Astyanax, and has a preference for shallow, flowing waters with ample vegetation.

Wikipedia contributors, Ectrepopterus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:34:27.454420+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Ectrepopterus uruguayensis (Fowler, 1943)
Name authority
(Fowler, 1943)
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Characiformes
Family
Acestrorhamphidae
Genus
Ectrepopterus
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.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. gigaclassActinopterygii
  8. superclassActinopteri
  9. classTeleostei
  10. orderCharaciformes
  11. suborderCharacoidei
  12. familyAcestrorhamphidae Eigenmann, 1907
  13. subfamilyStethaprioninae Eigenmann, 1907
  14. genusEctrepopterus Fowler, 1943
  15. speciesEctrepopterus uruguayensis (Fowler, 1943)

Close classified relatives

No other member of this genus is present in the selected snapshot.

Browse 498 records assigned to Acestrorhamphidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Hyphessobrycon uruguayensis (Fowler, 1943) (Fowler, 1943)synonym
Megalamphodus uruguayensis Fowler, 1943 Fowler, 1943synonym

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.

  1. https://www.marinespecies.org/aphia.php?p=taxdetails&id=1014627 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:38RBK. Classification follows source parent identifiers. English common names may vary by region.