Hisonotus notopagos Carvalho & Reis, 2011
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
Hisonotus notopagos is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Hypoptopomatinae. the cascudinhos. This catfish is endemic to Brazil where it is found in the upper Camaquã River drainage, a tributary of the Lagoa dos Patos in the state of Rio Grande do Sul. This species reaches a standard length of 3.7 cm (1.5 in).
Hisonotus notopagos was described in 2011 by Tiago P. Carvalho (of the Pontifical Xavierian University) and Roberto E. Reis (of the Pontifical Catholic University of Rio Grande do Sul) as part of a taxonomic review of Hisonotus species in the Lagoa dos Patos system, alongside five other species: H. heterogaster, H. brunneus, H. vireo, H. carreiro, and H. prata. The type locality of H. notopagos is stated to be the Lavras do Sul, a small creek which is a tributary of the arroio das Lavras on road from Lavras do Sul to Bagé, in the Camaquã drainage at 30°50'18"S, 53°55'43"W in Rio Grande do Sul.
Wikipedia contributors, Hisonotus notopagos; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:48:58.000385+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Hisonotus notopagos Carvalho & Reis, 2011
- Name authority
- Carvalho & Reis, 2011
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Loricariidae
- Genus
- Hisonotus
- 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
- genusHisonotus Eigenmann & Eigenmann, 1889
- speciesHisonotus notopagos Carvalho & Reis, 2011
Close classified relatives
These entries share the source’s genus, Hisonotus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hisonotus aky (Azpelicueta, Casciotta, Almirón & Koerber, 2004) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus carreiro Carvalho & Reis, 2011 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus charrua Almirón, Azpelicueta, Casciotta & Litz, 2006 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus depressicauda (Miranda Ribeiro, 1918) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus depressinotus (Miranda Ribeiro, 1918) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus francirochai (Ihering, 1928) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus hungy Azpelicueta, Almirón, Casciotta & Koerber, 2007 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus iota Carvalho & Reis, 2009 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus leucofrenatus (Miranda Ribeiro, 1908) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus maculipinnis (Regan, 1912) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus nigricauda (Boulenger, 1891) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Hisonotus notatus Eigenmann & Eigenmann, 1889 | 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.
- Carvalho, T. P., & Reis, R. E. (2011). Taxonomic review of Hisonotus Eigenmann & Eigenmann (Siluriformes: Loricariidae: Hypoptopomatinae) from the laguna dos Patos system, southern Brazil. Neotropical Ichthyology, 9. https://doi.org/10.1590/s1679-62252011000100001 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:3M4VZ. Classification follows source parent identifiers. English common names may vary by region.