Oryzias curvinotus (Nichols & Pope, 1927)
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
Oryzias curvinotus, or the Curved-back ricefish,Hainan medaka, is a species of ricefish which is found in Quang Ninh Province in northern Vietnam and Hainan, Guangdong and Hong Kong in southern China and Taiwan. It is found in both fresh and brackish water. This species was described as Aplocheilus curvinotus in 1927 by J.T. Nichols and C.H. Pope with the type locality given as Nodoa, Hainan Island, China.
Oryzias curvinotus can grow to 4 cm (1.6 in) total length.
Wikipedia contributors, Oryzias curvinotus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:26:59.241681+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Oryzias curvinotus (Nichols & Pope, 1927)
- Name authority
- (Nichols & Pope, 1927)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Beloniformes
- Family
- Adrianichthyidae
- Genus
- Oryzias
- 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
- orderBeloniformes
- familyAdrianichthyidae Weber, 1913
- subfamilyOryziinae Myers, 1938
- genusOryzias Jordan & Snyder, 1906
- speciesOryzias curvinotus (Nichols & Pope, 1927)
Close classified relatives
These entries share the source’s genus, Oryzias. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Oryzias asinua Parenti, Hadiaty, Lumbantobing & Herder, 2013 | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias celebensis (Weber, 1894) | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias javanicus (Bleeker, 1854) | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias latipes (Temminck & Schlegel, 1846) | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias melastigma (McClelland, 1839) | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias pectoralis Roberts, 1998 | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias setnai (Kulkarni, 1940) | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias soerotoi Mokodongan, Tanaka & Yamahira, 2014 | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias wolasi Parenti, Hadiaty, Lumbantobing & Herder, 2013 | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias bonneorum Parenti, 2008 | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias dancena (Hamilton, 1822) | AdrianichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Oryzias marmoratus (Aurich, 1935) | AdrianichthyidaeChordata | 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 |
|---|---|
| Aplocheilus curvinotus Nichols & Pope, 1927 Nichols & Pope, 1927 | 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=281937 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:6SZFF. Classification follows source parent identifiers. English common names may vary by region.