largetooth flounder
Pseudorhombus arsius (Hamilton, 1822)
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
Pseudorhombus arsius, the largetooth flounder, is a species of left-eyed flatfish. As an adult, the dark side of its body, where its eyes are located, is on the left side. It belongs to the family Paralichthyidae. As Rhombus polyspilos, it was named as the type species of the genus Pseudorhombus. It is an Indo-Pacific species and is caught by both recreational and commercial fisheries.
Wikipedia contributors, Pseudorhombus arsius; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:41:12.862223+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Pseudorhombus arsius (Hamilton, 1822)
- Name authority
- (Hamilton, 1822)
- Common name
- largetooth flounder
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Pleuronectiformes
- Family
- Paralichthyidae
- Genus
- Pseudorhombus
- 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
- orderPleuronectiformes
- suborderPleuronectoidei
- familyParalichthyidae Regan, 1910
- genusPseudorhombus Bleeker, 1862
- speciesPseudorhombus arsius (Hamilton, 1822)
Close classified relatives
These entries share the source’s genus, Pseudorhombus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Pseudorhombus annulatus Norman, 1927 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus argus Weber, 1913 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus binii Tortonese, 1955 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus ctenosquamis (Oshima, 1927) | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus dupliciocellatus Regan, 1905 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus natalensis Gilchrist, 1904 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus oligodon (Bleeker, 1854) | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus javanicus (Bleeker, 1853) | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus spinosus McCulloch, 1914 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus quinquocellatus Weber & de Beaufort, 1929 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus bahudaensis Acharya, Behera, Mohanty, Ray, Patro, Mishra & Mohapatra, 2025 | ParalichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Pseudorhombus cinnamoneus (Temminck & Schlegel, 1846) | ParalichthyidaeChordata | 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 |
|---|---|
| Neorhombus occellatus De Vis, 1886 De Vis, 1886 | synonym |
| Neorhombus ocellatus De Vis, 1886 De Vis, 1886 | synonym |
| Pseudorhombus arius (Hamilton, 1822) (Hamilton, 1822) | synonym |
| Rhombus polyspilos Bleeker, 1853 Bleeker, 1853 | synonym |
| Pleuronectes mortoniensis De Vis, 1882 De Vis, 1882 | synonym |
| Pseudorhombus polyspilus (Bleeker, 1853) (Bleeker, 1853) | synonym |
| Pseudorhombus andersoni Gilchrist, 1904 Gilchrist, 1904 | synonym |
| Pseudorhombus polyspilos (Bleeker, 1853) (Bleeker, 1853) | synonym |
| Rhombus lentiginosus Richardson, 1843 Richardson, 1843 | synonym |
| Teratorhombus excisiceps Macleay, 1881 Macleay, 1881 | synonym |
| Pleuronectes arsius Hamilton, 1822 Hamilton, 1822 | 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.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=220051 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:4P9SS. Classification follows source parent identifiers. English common names may vary by region.