Hopliancistrus tricornis Isbrücker & Nijssen, 1989

Open encyclopedia reference

Hopliancistrus tricornis 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 species reaches a length of 10.4 centimetres (4.1 in) SL. It is endemic to Brazil and can be found in the Tapajós and Xingu River basins. This species appears similar to members of Lasiancistrus, however it lacks the synapomorphies and has five rows of plates on the caudal peduncle instead of three like those found in Lasiancistrus. It is characterized by three stout, strongly curved odontodes on either side of the head in males. H. tricornis is the type species of the genus Hopliancistrus. The International Union for Conservation of Nature have assessed this species as Endangered because half of its known range has been affected, or will be affected, by the construction of dams.

Wikipedia contributors, Hopliancistrus tricornis; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:49:37.932222+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Hopliancistrus tricornis Isbrücker & Nijssen, 1989

Name authority

Isbrücker & Nijssen, 1989

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Teleostei

Order

Siluriformes

Family

Loricariidae

Genus

Hopliancistrus

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.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumOsteichthyes
7. gigaclassActinopterygii
8. superclassActinopteri
9. classTeleostei
10. orderSiluriformes
11. familyLoricariidae Rafinesque, 1815
12. subfamilyHypostominae Kner, 1853
13. tribeAncistrini Kner, 1854
14. genusHopliancistrus Isbrücker & Nijssen, 1989
15. speciesHopliancistrus tricornis Isbrücker & Nijssen, 1989

Close classified relatives

These entries share the source’s genus, Hopliancistrus. They are not necessarily the closest relatives established by molecular evidence.

Browse 823 records assigned to Loricariidae.

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.

1. Isbrücker, I. J. H.; Nijssen H. (1989). Diagnose dreier neuer Harnischwelsgattungen mit fünf neuen Arten aus Brasilien (Pisces, Siluriformes, Loricariidae). Die Aquarien- Und Terrarienzeitschrift (DATZ), 42 (9): 541–547. 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:3MKD9. Classification follows source parent identifiers. English common names may vary by region.