Barbucca heokhuii Kottelat, 2025
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
Barbucca heokhuii is a miniature loach found in the Rungan watershed of Central Borneo. The largest known specimen has a length of 21.5 mm (0.85 in), making it the smallest known species of Barbucca. Its population has not been evaluated. It differentiates itself from other species in the Barbucca genus by having a smaller size, different patterns, an incomplete lateral line and more. It coexists with Barbucca diabolica.
Sexual dimorphism had not been recorded in the family Barbuccidae before, however male specimens of B. heokhuii have been described as having differing widths of their pectoral fin rays, and tiny tubercles (assumed to be a male trait), compared to the females who's rays have similar widths.
Wikipedia contributors, Barbucca heokhuii; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:08:21.810817+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Barbucca heokhuii Kottelat, 2025
- Name authority
- Kottelat, 2025
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cypriniformes
- Family
- Barbuccidae
- Genus
- Barbucca
- 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
- orderCypriniformes
- familyBarbuccidae Kottelat, 2012
- genusBarbucca Roberts, 1989
- speciesBarbucca heokhuii Kottelat, 2025
Close classified relatives
These entries share the source’s genus, Barbucca. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Barbucca diabolica Roberts, 1989 | BarbuccidaeChordata | Accepted speciesExtinction status not supplied |
| Barbucca elongata Vasil'eva & Vasil'ev, 2013 | BarbuccidaeChordata | 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.
- Kottelat, M. (2025). Barbucca heokhuii, a new species of loach from central Borneo (Teleostei: Barbuccidae). Raffles Bulletin of Zoology, 73: 54–66. https://doi.org/10.26107/rbz-2025-0005 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:V2X6X. Classification follows source parent identifiers. English common names may vary by region.