Ayarnangra estuarius Roberts, 2001
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
Ayarnangra estuarius is a species of catfish (order Siluriformes) of the family Erethistidae. It is the only member of the monotypic genus Ayarnangra.
A. estuarius is endemic to Myanmar where it is found in the large tidal rivers in the lower Ayeyarwady River. This species feeds on comparatively large invertebrates.
A. estuarius has no thoracic adhesive apparatus, a granulate anterior margin of the pectoral fin spine, a smooth to granulate anterior margin of the dorsal fin spine, a slender body shape, moderate gill openings, and a papillate upper lip. The eyes are very small, and the nostrils are much larger than the eyes. This species of fish reaches a length of 4.59 centimetres (1.81 in) SL.
Wikipedia contributors, Ayarnangra; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:07:25.712563+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Ayarnangra estuarius Roberts, 2001
- Name authority
- Roberts, 2001
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Siluriformes
- Family
- Sisoridae
- Genus
- Ayarnangra
- 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
- familySisoridae Bleeker, 1858
- subfamilySisorinae Bleeker, 1858
- genusAyarnangra Roberts, 2001
- speciesAyarnangra estuarius Roberts, 2001
Close classified relatives
No other member of this genus is present in the selected snapshot.
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.
- Roberts, T. R. (2001). Ayarnangra estuarius, a new genus and species of sisorid catfish from the Ayeyarwaddy basin, Myanmar. Natural History Bulletin of the Siam Society, 49 (1): 81–87. 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:K4N9. Classification follows source parent identifiers. English common names may vary by region.