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Black squirrelfish

Neoniphon opercularis

  • Fish
  • IUCN: Least concern
  • Usual depth2–21 m
  • Water temperature24–30 °C
  • Best monthsApril and October
  • How commonOccasional
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About this species

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 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.

Text from the Wikipedia article “Neoniphon opercularis”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 12 records
  • February: 14 records
  • March: 15 records
  • April: 36 records
  • May: 15 records
  • June: 18 records
  • July: 24 records
  • August: 34 records
  • September: 19 records
  • October: 58 records
  • November: 10 records
  • December: 6 records

Depth and water temperature

Depth

Mostly recorded at 2–21 m · Deepest record: 35 m

  • 0–10 m: 97 records
  • 10–20 m: 122 records
  • 20–30 m: 26 records
  • 30–40 m: 3 records

Water temperature

Recorded in surface water of 24–30 °C

  • 24–26 °C: 8 records
  • 26–28 °C: 64 records
  • 28–30 °C: 215 records

Names and classification

English
Black squirrelfish, Black-finned Squirrelfish, blackfin soldier, Blackfin Squirrelfish, black squirrelfish, Clearfin Squirrelfish, Mouth-fin Squirrelfish, Mouthfin Squirrelfish
Names in 4 more languages
Spanish
Cardil de Aleta Negra
French
Marignan aile noire, Poisson-écureuil à nageoire noire, Poisson-écureuil argenté à bandes, Soldat à Nageoire Noire
Japanese
Hireguroittodai, ヒレグロイットウダイ
Simplified Chinese
瀾公妾, 金鱗甲, 鐵甲, 鐵甲兵, 鐵線婆, 黑鰭新東洋金鱗魚, 黑鰭新東洋鰃, 黑鰭金鱗魚, 黑鳍新东洋鳂

Other scientific names: Flammeo opercularis, Holocentrum operculare, Holocentrus opercularis, Kutaflammeo opercularis, Neoniphon openrcularis

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

  • Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
  • Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
  • Conservation status as published by GBIF (IUCN Red List).
  • 465 open-data records from 1902 to 2021.

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