twospot surgeonfish
Ctenochaetus binotatus Randall, 1955
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
Ctenochaetus binotatus, the twospot bristletooth or twospot surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes unicornfishes and tangs. This species has a wide Indo-Pacific distribution.
Wikipedia contributors, Ctenochaetus binotatus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:41:52.805848+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Ctenochaetus binotatus Randall, 1955
- Name authority
- Randall, 1955
- Common name
- twospot surgeonfish
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Acanthuriformes
- Family
- Acanthuridae
- Genus
- Ctenochaetus
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: yes · Freshwater: no · 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
- orderAcanthuriformes
- familyAcanthuridae Bonaparte, 1835
- genusCtenochaetus Gill, 1884
- speciesCtenochaetus binotatus Randall, 1955
Close classified relatives
These entries share the source’s genus, Ctenochaetus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Ctenochaetus cyanocheilus Randall & Clements, 2001 | AcanthuridaeChordata | Accepted speciesExtinction status not supplied |
| Ctenochaetus truncatus Randall & Clements, 2001 | AcanthuridaeChordata | Accepted speciesExtinction status not supplied |
| Ctenochaetus flavicauda Fowler, 1938 | AcanthuridaeChordata | Accepted speciesExtinction status not supplied |
| Ctenochaetus marginatus (Valenciennes, 1835) | AcanthuridaeChordata | Accepted speciesExtinction status not supplied |
| lined bristletoothCtenochaetus striatus (Quoy & Gaimard, 1825) | AcanthuridaeChordata | Accepted speciesExtinction status not supplied |
| spotted surgeonfishCtenochaetus strigosus (Bennett, 1828) | AcanthuridaeChordata | Accepted speciesExtinction status not supplied |
| Ctenochaetus tominiensis Randall, 1955 | AcanthuridaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Ctenochaetus oculocoeruleus Fourmanoir, 1966 Fourmanoir, 1966 | synonym |
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.
- Randall, J. E. (1955). A revision of the surgeon fish genus Ctenochaetus, family Acanthuridae, with descriptions of five new species. Zoologica, Scientific Contributions of the New York Zoological Society, 40 (pt 4, 15): 149–166, Pls. 1–2. https://doi.org/10.5962/p.203426 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:325BP. Classification follows source parent identifiers. English common names may vary by region.