Cortez rainbow wrasse
Thalassoma lucasanum (Gill, 1862)
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.

Cortez Rainbow Wrasse (Thalassoma lucasanum) Isla Coiba, Panama
LASZLO ILYES from Cleveland, Ohio, USA · CC BY 2.0 · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The Cortez rainbow wrasse (Thalassoma lucasanum) is a species of wrasse native to the eastern Pacific Ocean from Baja California to Peru, as well as around the Galapagos Islands. It is a reef inhabitant, occurring in small schools from the surface to depths of 64 m (210 ft), though rarely deeper than 25 m (82 ft) or shallower than 2 m (6.6 ft). It is generally very common. It can also be found in the aquarium trade. This species can reach 15 cm (5.9 in) in total length. It feeds on small organisms such as crustaceans, plankton and fish eggs, and the young are cleaner fish.
Wikipedia contributors, Cortez rainbow wrasse; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:37:16.048310+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Thalassoma lucasanum (Gill, 1862)
- Name authority
- (Gill, 1862)
- Common name
- Cortez rainbow wrasse
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Family
- Labridae
- Genus
- Thalassoma
- 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
- subfamilyJulidinae Bonaparte, 1841
- genusThalassoma Swainson, 1839
- speciesThalassoma lucasanum (Gill, 1862)
Close classified relatives
These entries share the source’s genus, Thalassoma. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| bluntheaded wrasseThalassoma amblycephalum (Bleeker, 1856) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma ascensionis (Quoy & Gaimard, 1834) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| blueheadThalassoma bifasciatum (Bloch, 1791) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma genivittatum (Valenciennes, 1839) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| sunset wrasseThalassoma grammaticum Gilbert, 1890 | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma hardwicke (Bennett, 1830) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| goldbar wrasseThalassoma hebraicum (Lacepède, 1801) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma heiseri Randall & Edwards, 1984 | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma jansenii (Bleeker, 1856) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma lutescens (Lay & Bennett, 1839) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma noronhanum (Boulenger, 1890) | LabridaeChordata | Accepted speciesExtinction status not supplied |
| Thalassoma pavo (Linnaeus, 1758) | 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 |
|---|---|
| Julis lucasanus Gill, 1862 Gill, 1862 | 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=273584 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.
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:55ZNJ. Classification follows source parent identifiers. English common names may vary by region.