Hassar orestis (Steindachner, 1875)
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
Hassar orestis is a species of thorny catfish that is native to the countries of Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela. It is found in the Orinoco and Essequibo River basins. This species grows to a length of 20.6 centimetres (8.1 in) SL.
Wikipedia contributors, Hassar orestis; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:44:52.820228+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Hassar orestis (Steindachner, 1875)
- Name authority
- (Steindachner, 1875)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Doradidae
- Genus
- Hassar
- 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
- orderSiluriformes
- familyDoradidae Bleeker, 1858
- genusHassar Eigenmann & Eigenmann, 1888
- speciesHassar orestis (Steindachner, 1875)
Close classified relatives
These entries share the source’s genus, Hassar. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hassar shewellkeimi Sabaj Pérez & Birindelli, 2013 | DoradidaeChordata | Accepted speciesExtinction status not supplied |
| Hassar affinis (Steindachner, 1881) | DoradidaeChordata | Accepted speciesExtinction status not supplied |
| Hassar gabiru Birindelli, Fayal & Wosiacki, 2011 | DoradidaeChordata | Accepted speciesExtinction status not supplied |
| Hassar wilderi Kindle, 1895 | DoradidaeChordata | 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 |
|---|---|
| Hassar notospilus (Eigenmann, 1912) (Eigenmann, 1912) | synonym |
| Hassar ucayalensis Fowler, 1940 Fowler, 1940 | synonym |
| Hemidoras notospilus Eigenmann, 1912 Eigenmann, 1912 | synonym |
| Oxydoras orestis Steindachner, 1875 Steindachner, 1875 | 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=1026852 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:3JVN3. Classification follows source parent identifiers. English common names may vary by region.