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Humpback unicornfish

Naso brachycentron

  • Fish
  • IUCN: Least concern
  • Usual depth5–28 m
  • Water temperature24–30 °C
  • Best monthsFebruary and March
  • How commonOccasional
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About this species

Naso brachycentron, the humpback unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indian and western Pacific Oceans.

Text from the Wikipedia article “Naso brachycentron”, 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: 0 records
  • February: 34 records
  • March: 29 records
  • April: 18 records
  • May: 7 records
  • June: 3 records
  • July: 5 records
  • August: 5 records
  • September: 3 records
  • October: 12 records
  • November: 3 records
  • December: 4 records

Depth and water temperature

Depth

Mostly recorded at 5–28 m · Deepest record: 79.2 m

  • 0–10 m: 31 records
  • 10–20 m: 57 records
  • 20–30 m: 17 records
  • 30–40 m: 3 records
  • 40–50 m: 1 records
  • 50–60 m: 4 records
  • 60–70 m: 0 records
  • 70–80 m: 1 records

Water temperature

Recorded in surface water of 24–30 °C

  • 22–24 °C: 1 records
  • 24–26 °C: 11 records
  • 26–28 °C: 45 records
  • 28–30 °C: 92 records

Names and classification

English
Humpback unicornfish, Humpback Unicorn, humpback unicornfish, Ringtailed Unicornfish
Names in 6 more languages
German
Buckel-Nasendoktor
Spanish
Pez Unicornio Jorobado
Filipino
Isdang ilong, Labahita, Surahan, Tudluan, Yapot
French
Nason à bosse, Nason à bosse, Nason bossu, Nason Bossu
Japanese
Oni-tenguhagi, Onitenguhagi, オニテングハギ
Simplified Chinese
粗棘鼻魚

Other scientific names: Naseus brachycentron, Naso branchycentron, Naso rigoletto, Prionolepis hewitti

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).
  • 378 open-data records from 1835 to 2023.

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