Blue Hawaiian grouper
Grammatonotus laysanus Gilbert, 1905
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.

Grammatonotus laysanus
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Open encyclopedia reference
Grammatonotus laysanus, the purple groppo, is a species of marine ray-finned fish belonging to the family Callanthiidae, the groppos and splendid perches. This fish is found in the Pacific Ocean.
Wikipedia contributors, Grammatonotus laysanus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:35:24.355800+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Grammatonotus laysanus Gilbert, 1905
- Name authority
- Gilbert, 1905
- Common name
- Blue Hawaiian grouper
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Family
- Callanthiidae
- Genus
- Grammatonotus
- 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
- familyCallanthiidae Ogilby, 1899
- genusGrammatonotus Gilbert, 1905
- speciesGrammatonotus laysanus Gilbert, 1905
Close classified relatives
These entries share the source’s genus, Grammatonotus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Batangas groppoGrammatonotus brianne Anderson, Greene & Rocha, 2016 | CallanthiidaeChordata | Accepted speciesRecorded extant |
| Grammatonotus crosnieri (Fourmanoir, 1981) | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
| Grammatonotus macrophthalmus Katayama, Yamamoto & Yamakawa, 1982 | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
| Grammatonotus pelipel Anderson & Johnson, 2017 | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
| Grammatonotus bianchi Lisher, Thein & Psomadakis, 2021 | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
| Grammatonotus ambiortus Prokofiev, 2006 | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
| Grammatonotus lanceolatus (Kotthaus, 1976) | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
| Grammatonotus roseus (Günther, 1880) | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
| Grammatonotus surugaensis Katayama, Yamakawa & Suzuki, 1980 | CallanthiidaeChordata | Accepted speciesExtinction status not supplied |
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.
- Gilbert, C. H. (1905). II. The deep-sea fishes of the Hawaiian Islands. In: The Aquatic Resources of the Hawaiian Islands. Bulletin of the U. S. Fish Commission, v. 23 (pt 2) [for 1903]: 577–713, Pls. 66–101. 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:3H5Z3. Classification follows source parent identifiers. English common names may vary by region.