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Corydoras areio Knaack, 2000

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

Corydoras areio, the hump cory, is a species of freshwater ray-finned fish belonging to the subfamily Corydoradinae, the corys, of the family Callichthyidae, the armoured catfishes. This species is found in South America where it occurs in upper basin of the Paraguay River in the Mato Grosso and Mato Grosso do Sul states of Brazil. This species reaches a standard length of 5 cm (2.0 in).

Wikipedia contributors, Corydoras areio; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:24:31.743679+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Corydoras areio Knaack, 2000
Name authority
Knaack, 2000
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Siluriformes
Family
Callichthyidae
Genus
Corydoras
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. familyCallichthyidae Bonaparte, 1835
  12. subfamilyCorydoradinae Hoedeman, 1952
  13. genusCorydoras Lacepède, 1803
  14. speciesCorydoras areio Knaack, 2000

Close classified relatives

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

SpeciesClassificationSource status
Corydoras vittatus Nijssen, 1971CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras hastatus Eigenmann & Eigenmann, 1888CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras acutus Cope, 1872CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras araguaiaensis Sands, 1990CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras amphibelus Cope, 1872CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras solox Nijssen & Isbrücker, 1983CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras cochui Myers & Weitzman, 1954CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras bilineatus Knaack, 2002CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras ambiacus Cope, 1872CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras albolineatus Knaack, 2004CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras steindachneri Isbrücker & Nijssen, 1973CallichthyidaeChordataAccepted speciesExtinction status not supplied
Corydoras loretoensis Nijssen & Isbrücker, 1986CallichthyidaeChordataAccepted speciesExtinction status not supplied

Browse 129 records assigned to Callichthyidae.

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. Knaack, J. (2000). Ein neuer Panzerwels aus Bolivien: Eine weitere neue Art der Gattung Corydoras Lacépède, 1803 aus dem Mato Grosso (Pisces, Siluriformes, Callichthyidae). VDA--Aktuell, 2. 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:YPV3. Classification follows source parent identifiers. English common names may vary by region.