butter hamlet
Hypoplectrus unicolor (Walbaum, 1792)
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
Hypoplectrus unicolor, the butter hamlet or yellowtail hamlet, is a species of marine ray-finned fish, a sea bass from the subfamily Serraninae which is part of the family Serranidae, which also includes the groupers and anthias. It occurs in the western central Atlantic Ocean and occasionally makes its way into the aquarium trade.
Wikipedia contributors, Hypoplectrus unicolor; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T03:32:47.907035+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Hypoplectrus unicolor (Walbaum, 1792)
- Name authority
- (Walbaum, 1792)
- Common name
- butter hamlet
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Perciformes
- Family
- Serranidae
- Genus
- Hypoplectrus
- 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
- orderPerciformes
- suborderPercoidei
- familySerranidae Swainson, 1839
- genusHypoplectrus Gill, 1861
- speciesHypoplectrus unicolor (Walbaum, 1792)
Close classified relatives
These entries share the source’s genus, Hypoplectrus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hypoplectrus affinis (Poey, 1861) | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| Hypoplectrus gummigutta (Poey, 1851) | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| shy hamletHypoplectrus guttavarius (Poey, 1852) | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| indigo hamletHypoplectrus indigo (Poey, 1851) | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| Hypoplectrus maya Lobel, 2011 | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| yellowbelly hamletHypoplectrus aberrans Poey, 1868 | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| Hypoplectrus atlahua Tavera & Acero, 2013 | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| Hypoplectrus castroaguirrei Del Moral Flores, Tello-Musi & Martínez-Pérez, 2012 | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| Hypoplectrus chlorurus (Cuvier, 1828) | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| Hypoplectrus ecosur Victor, 2012 | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| Hypoplectrus floridae Victor, 2012 | SerranidaeChordata | Accepted speciesExtinction status not supplied |
| blue hamletHypoplectrus gemma Goode & Bean, 1882 | SerranidaeChordata | 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 |
|---|---|
| Hypoplectus unicolor (Walbaum, 1792) (Walbaum, 1792) | synonym |
| Perca unicolor Walbaum, 1792 Walbaum, 1792 | 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=281121 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:3NXXL. Classification follows source parent identifiers. English common names may vary by region.