Pseudancistrus nigrescens Eigenmann, 1912
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.
Identity & source status
- Scientific name
- Pseudancistrus nigrescens Eigenmann, 1912
- Name authority
- Eigenmann, 1912
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Loricariidae
- Genus
- Pseudancistrus
- 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
- tribePseudancistrini Armbruster & Lujan, 2025
- genusPseudancistrus Bleeker, 1862
- speciesPseudancistrus nigrescens Eigenmann, 1912
Close classified relatives
These entries share the source’s genus, Pseudancistrus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Pseudancistrus coquenani (Steindachner, 1915) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus depressus (Günther, 1868) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus guentheri (Regan, 1904) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus kayabi Silva, Roxo & Oliveira, 2015 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus orinoco (Isbrücker, Nijssen & Cala, 1988) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus reus Armbruster & Taphorn, 2008 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus yekuana Lujan, Armbruster & Sabaj Pérez, 2007 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus kwinti Willink, Mol & Chernoff, 2010 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus zawadzkii Silva, Roxo, Britzke & Oliveira, 2014 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus asurini Silva, Roxo & Oliveira, 2015 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus barbatus (Valenciennes, 1840) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudancistrus corantijniensis De Chambrier & Montoya-Burgos, 2008 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
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.
- Eigenmann, C. H. (1912). The freshwater fishes of British Guiana, including a study of the ecological grouping of species, and the relation of the fauna of the plateau to that of the lowlands. Memoirs of the Carnegie Museum, v. 5 (no. 1): i–xxii + 1–578, Pls. 1–103. https://doi.org/10.5962/bhl.part.14514 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:4NK8Y. Classification follows source parent identifiers. English common names may vary by region.