Acestridium discus Haseman, 1911
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
Acestridium discus is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Hypoptopomatinae, the cascudinos. This catfish is endemic to Brazil where it occurs in the basin of the Rio Negro in the state of Amazonas. A. discus was first formally described in 1911 by the American ichthyologist John Diederich Haseman with its type locality given as Igarapé de Cachoeira Grande, near Manaus. When Haseman described this species he classified it in the new monospecific genus Acestridium , meaning that A. discus is the type species of that genus by monotypy. This species reaches a standard length of 6.7 cm (2.6 in).
Wikipedia contributors, Acestridium discus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T18:56:25.776180+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Acestridium discus Haseman, 1911
- Name authority
- Haseman, 1911
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Loricariidae
- Genus
- Acestridium
- 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
- subfamilyHypoptopomatinae Eigenmann & Eigenmann, 1890
- genusAcestridium Haseman, 1911
- speciesAcestridium discus Haseman, 1911
Close classified relatives
These entries share the source’s genus, Acestridium. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Acestridium dichromum Retzer, Nico & Provenzano, 1999 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Acestridium gymnogaster Reis & Lehmann A., 2009 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Acestridium martini Retzer, Nico & Provenzano, 1999 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Acestridium triplax Rodríguez & Reis, 2007 | 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.
- Haseman, J. D. (1911). Descriptions of some new species of fishes and miscellaneous notes on others obtained during the expedition of the Carnegie Museum to central South America. Annals of the Carnegie Museum, v. 7 (nos 3–4) (17): 315–328, Pls. 46–52. https://doi.org/10.5962/p.29705 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:958J. Classification follows source parent identifiers. English common names may vary by region.