Hemiancistrus medians (Kner, 1854)
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
Hemiancistrus medians is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armoured catfishes, and the subfamily Hypostominae, the suckermouth catfishes. This catfish is found in South America, where it occurs in the Maroni basin in French Guiana and Suriname. This species is usually found in rapids with a strong current and a substrate of large, shelter-providing rocks. It is known to coexist with the species Bryconops caudomaculatus, Chasmocranus longior, Harttia surinamensis, Hypostomus gymnorhynchus, Jupiaba meunieri, Leporinus granti, and Parodon guyanensis. This species is large for a loricariid, reaching a total length of 39 cm (15 in). H. medians is the type species of the genus Hemiancistrus.
Wikipedia contributors, Hemiancistrus medians; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:45:25.072084+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Hemiancistrus medians (Kner, 1854)
- Name authority
- (Kner, 1854)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Loricariidae
- Genus
- Hemiancistrus
- 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
- familyLoricariidae Rafinesque, 1815
- subfamilyHypostominae Kner, 1853
- tribeSpectracanthicini Isbrücker & Nijssen, 1989
- genusHemiancistrus Bleeker, 1862
- speciesHemiancistrus medians (Kner, 1854)
Close classified relatives
These entries share the source’s genus, Hemiancistrus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hemiancistrus cerrado de Souza, Melo, Chamon & Armbruster, 2008 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hemiancistrus chlorostictus Cardoso & Malabarba, 1999 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hemiancistrus sabaji (Armbruster, 2003) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hemiancistrus megalopteryx Cardoso, 2004 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hemiancistrus aspidolepis (Günther, 1867) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hemiancistrus votouro Cardoso & da Silva, 2004 | LoricariidaeChordata | 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 |
|---|---|
| Ancistrus medians Kner, 1854 Kner, 1854 | 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=1021612 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:6LNPV. Classification follows source parent identifiers. English common names may vary by region.