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Leiarius longibarbis (Castelnau, 1855)

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

Leiarius longibarbis, commonly as Marbled Pim, is a species of demersal catfish of the family Pimelodidae that is native to Guyana and Brazil.

It inhabits Rio Orinoco in Colombia and Venezuela, Rio Essequibo in Guyana, and the Amazon basin in Brazil, Peru and Bolivia.

Wikipedia contributors, Leiarius longibarbis; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:00:26.446295+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Leiarius longibarbis (Castelnau, 1855)
Name authority
(Castelnau, 1855)
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Siluriformes
Family
Pimelodidae
Genus
Leiarius
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. orderSiluriformes
  11. familyPimelodidae Bonaparte, 1835
  12. genusLeiarius Bleeker, 1862
  13. speciesLeiarius longibarbis (Castelnau, 1855)

Close classified relatives

These entries share the source’s genus, Leiarius. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Leiarius pictus (Müller & Troschel, 1849)PimelodidaeChordataAccepted speciesExtinction status not supplied
Leiarius arekaima (Jardine, 1841)PimelodidaeChordataAccepted speciesExtinction status not supplied
Leiarius marmoratus (Gill, 1870)PimelodidaeChordataAccepted speciesExtinction status not supplied

Browse 82 records assigned to Pimelodidae.

Names & synonyms

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

Recorded nameSource status
Arius longibarbis Castelnau, 1855 Castelnau, 1855synonym

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=1021479 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:3SXR2. Classification follows source parent identifiers. English common names may vary by region.