domino
Dascyllus trimaculatus (Rüppell, 1829)
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.

Photo of Three-spot Dascyllus uploaded from iNaturalist.
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Open encyclopedia reference
The threespot dascyllus (Dascyllus trimaculatus), also known as the domino damsel or simply domino, is a species of damselfish from the family Pomacentridae. It is native to the Indo-Pacific from the Red Sea and East Africa, to the Pitcairn Islands, southern Japan, and Australia, and can also be found in some parts of the Philippines.
Wikipedia contributors, Threespot dascyllus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:24:13.821666+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Dascyllus trimaculatus (Rüppell, 1829)
- Name authority
- (Rüppell, 1829)
- Common name
- domino
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Family
- Pomacentridae
- Genus
- Dascyllus
- 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
- familyPomacentridae Bonaparte, 1831
- genusDascyllus Cuvier, 1829
- speciesDascyllus trimaculatus (Rüppell, 1829)
Close classified relatives
These entries share the source’s genus, Dascyllus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Dascyllus strasburgi Klausewitz, 1960 | PomacentridaeChordata | Accepted speciesExtinction status not supplied |
| Dascyllus flavicaudus Randall & Allen, 1977 | PomacentridaeChordata | Accepted speciesExtinction status not supplied |
| blackbordered dascyllusDascyllus marginatus (Rüppell, 1829) | PomacentridaeChordata | Accepted speciesExtinction status not supplied |
| Dascyllus albisella Gill, 1862 | PomacentridaeChordata | Accepted speciesExtinction status not supplied |
| banded dascyllusDascyllus aruanus (Linnaeus, 1758) | PomacentridaeChordata | Accepted speciesExtinction status not supplied |
| Dascyllus auripinnis Randall & Randall, 2001 | PomacentridaeChordata | Accepted speciesExtinction status not supplied |
| reticulate dascyllusDascyllus reticulatus (Richardson, 1846) | PomacentridaeChordata | 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 |
|---|---|
| Dascyllus trimaculatum (Rüppell, 1829) (Rüppell, 1829) | synonym |
| Pomacentrus nuchalis Anonymous [Bennett], 1830 Anonymous [Bennett], 1830 | synonym |
| Dascyllus niger Bleeker, 1847 Bleeker, 1847 | synonym |
| Sparus nigricans Gronow, 1854 Gronow, 1854 | synonym |
| Dascyllus unicolor Bennett, 1831 Bennett, 1831 | synonym |
| Pomacentrus trimaculatus Rüppell, 1829 Rüppell, 1829 | ambiguous synonym |
| Dascyllus axillaris Smith, 1935 Smith, 1935 | 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=212846 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:6CBZT. Classification follows source parent identifiers. English common names may vary by region.