Chaetostoma trimaculineum Lujan, Meza-Vargas, Astudillo-Clavijo, Barriga-Salazar & López-Fernández, 2015
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
Chaetostoma trimaculineum 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 the upper Santiago and middle Marañon river drainages in eastern Ecuador and northern Peru. This species reaches a standard length of 16 cm (6.3 in). Itcan be told apart from other Chaetostoma species by having three or four linear rows of distinct, round, nostril-sized black spots along the median, mid-dorsal, and dorsal plates of the body, three smaller white spots on the head and it has four branched rays in its anal fin. This species was first formally described in 2015 by Nathan K. Lujan, Vanessa Meza-Vargas, Viviana Astudillo-Clavijo, Ramiro Edmundo Barriga-Salazar & Hernán López-Fernández with its type locality given as the Santiago River drainage, Morona-Santiago Province, confluence of the Changachangasa and Tutanangosa rivers and upstream in both, at 2°35'51.18"S, 78°11'10.38"W in Ecuador.
Wikipedia contributors, Chaetostoma trimaculineum; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:16:52.521515+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Chaetostoma trimaculineum Lujan, Meza-Vargas, Astudillo-Clavijo, Barriga-Salazar & López-Fernández, 2015
- Name authority
- Lujan, Meza-Vargas, Astudillo-Clavijo, Barriga-Salazar & López-Fernández, 2015
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Loricariidae
- Genus
- Chaetostoma
- 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
- tribeChaetostomatini Fowler, 1958
- genusChaetostoma Tschudi, 1846
- speciesChaetostoma trimaculineum Lujan, Meza-Vargas, Astudillo-Clavijo, Barriga-Salazar & López-Fernández, 2015
Close classified relatives
These entries share the source’s genus, Chaetostoma. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Chaetostoma anale (Fowler, 1943) | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma guairense Steindachner, 1881 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma jegui Rapp Py-Daniel, 1991 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma leucomelas Eigenmann, 1918 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma branickii Steindachner, 1881 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma palmeri Regan, 1912 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma stroumpoulos Salcedo, 2006 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma lineopunctatum Eigenmann & Allen, 1942 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma formosae Ballen, 2011 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma breve Regan, 1904 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma daidalmatos Salcedo, 2006 | LoricariidaeChordata | Accepted speciesExtinction status not supplied |
| Chaetostoma dorsale Eigenmann, 1922 | 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.
- Lujan, N. K., Meza-Vargas, V., Astudillo-Clavijo, V., Barriga-Salazar, R., & López-Fernández, H. (2015). A Multilocus Molecular Phylogeny for Chaetostoma Clade Genera and Species with a Review of Chaetostoma (Siluriformes: Loricariidae) from the Central Andes. Copeia, 103. https://doi.org/10.1643/ci-14-194 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:5Y2FW. Classification follows source parent identifiers. English common names may vary by region.