emerald parrotfish
Nicholsina usta (Valenciennes, 1840)
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.
Identity & source status
- Scientific name
- Nicholsina usta (Valenciennes, 1840)
- Name authority
- (Valenciennes, 1840)
- Common name
- emerald parrotfish
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Family
- Labridae
- Genus
- Nicholsina
- 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
- familyLabridae Cuvier, 1816
- subfamilyScarinae Rafinesque, 1810
- tribeSparisomatini Gill, 1893
- genusNicholsina Fowler, 1915
- speciesNicholsina usta (Valenciennes, 1840)
Close classified relatives
These entries share the source’s genus, Nicholsina. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Nicholsina ustus | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Nicholsina collettei Schultz, 1968 | LabridaeChordata | Accepted speciesExtinction status not supplied |
| loosetooth parrotfishNicholsina denticulata (Evermann & Radcliffe, 1917) | LabridaeChordata | 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 |
|---|---|
| Cryptotomus dentiens (Poey, 1861) (Poey, 1861) | synonym |
| Cryptotomus retractus (Poey, 1868) (Poey, 1868) | synonym |
| Scarus dentiens Poey, 1861 Poey, 1861 | synonym |
| Nicholsina usta usta (Valenciennes, 1840) (Valenciennes, 1840) | synonym |
| Cryptotomus auropunctatus (Valenciennes in Cuvier & Valenciennes, 1840) (Valenciennes in Cuvier & Valenciennes, 1840) | synonym |
| Calliodon retractus Poey, 1868 Poey, 1868 | synonym |
| Callyodon ustus Valenciennes, 1840 Valenciennes, 1840 | synonym |
| Cryptotomus beryllinus Jordan & Swain, 1884 Jordan & Swain, 1884 | synonym |
| Callyodon auropunctatus Valenciennes in Cuvier & Valenciennes, 1840 Valenciennes in Cuvier & Valenciennes, 1840 | 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=159298 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:47CKL. Classification follows source parent identifiers. English common names may vary by region.