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black squirrelfish

Neoniphon opercularis (Valenciennes, 1831)

Source-backed taxonomic record

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.

Un poisson-écureuil à dorsale noire (Neoniphon opercularis) aux Maldives (atoll de Baa).

Un poisson-écureuil à dorsale noire (Neoniphon opercularis) aux Maldives (atoll de Baa).

Julien Bidet · CC BY-SA 4.0 · Image source

Provider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.

Open encyclopedia reference

Neoniphon opercularis, the blackfin squirrelfish, also known as the mouth-fin squirrelfish or clearfin squirrelfish, is a species of squirrelfish found in the Indian Ocean and Pacific Ocean from East Africa as far east as New Caledonia. It lives alone or in small groups in or near reefs and lagoons between 3 and 25 metres (9.8 and 82.0 ft) deep and can reach sizes of up to 35.0 centimetres (13.8 in) TL. It eats crabs and shrimps. Its dorsal fin is raised to scare off or startle predators. It also has a large venomous spine at the corner of its preopercle. It is relatively unaffected by commercial fishing, but is sometimes used as bait for tuna fisheries.

Wikipedia contributors, Neoniphon opercularis; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:21:18.921797+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Neoniphon opercularis (Valenciennes, 1831)
Name authority
(Valenciennes, 1831)
Common name
black squirrelfish
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Holocentriformes
Family
Holocentridae
Genus
Neoniphon
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.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. gigaclassActinopterygii
  8. superclassActinopteri
  9. classTeleostei
  10. orderHolocentriformes
  11. familyHolocentridae Bonaparte, 1833
  12. subfamilyHolocentrinae Bonaparte, 1833
  13. genusNeoniphon Castelnau, 1875
  14. speciesNeoniphon opercularis (Valenciennes, 1831)

Close classified relatives

These entries share the source’s genus, Neoniphon. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Neoniphon aurolineatus (Liénard, 1839)HolocentridaeChordataAccepted speciesExtinction status not supplied
longjaw squirrelfishNeoniphon marianus (Cuvier, 1829)HolocentridaeChordataAccepted speciesExtinction status not supplied
Neoniphon pencei Copus, Pyle & Earle, 2015HolocentridaeChordataAccepted speciesExtinction status not supplied
Neoniphon coruscus (Poey, 1860)HolocentridaeChordataAccepted speciesExtinction status not supplied
Neoniphon argenteus (Valenciennes, 1831)HolocentridaeChordataAccepted speciesExtinction status not supplied
sammara squirrelfishNeoniphon sammara (Forsskål, 1775)HolocentridaeChordataAccepted speciesExtinction status not supplied

Browse 58 records assigned to Holocentridae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Holocentrus opercularis (Valenciennes, 1831) (Valenciennes, 1831)synonym
Kutaflammeo opercularis (Valenciennes, 1831) (Valenciennes, 1831)synonym
Flammeo opercularis (Valenciennes, 1831) (Valenciennes, 1831)synonym
Holocentrum operculare Valenciennes, 1831 Valenciennes, 1831synonym
Neoniphon openrcularis (Valenciennes, 1831) (Valenciennes, 1831)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.

  1. https://www.marinespecies.org/aphia.php?p=taxdetails&id=217929 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:46NWL. Classification follows source parent identifiers. English common names may vary by region.