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Pale-tailed Bristletooth

Ctenochaetus flavicauda

  • Fish
  • IUCN: Least concern
  • Usual depth6–23 m
  • Water temperature24–29 °C
  • Best monthsMarch
  • How commonOccasional
All species

Photo credit: (c) Rachel Crane, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Ctenochaetus flavicauda, the whitetail bristletooth or redspotted tang, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. It is found in the western central Pacific Ocean.

Text from the Wikipedia article “Ctenochaetus flavicauda”, 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: 59 records
  • February: 234 records
  • March: 407 records
  • April: 168 records
  • May: 157 records
  • June: 130 records
  • July: 105 records
  • August: 32 records
  • September: 18 records
  • October: 6 records
  • November: 8 records
  • December: 5 records

Depth and water temperature

Depth

Mostly recorded at 6–23 m · Deepest record: 29.4 m

  • 0–10 m: 222 records
  • 10–20 m: 761 records
  • 20–30 m: 256 records

Water temperature

Recorded in surface water of 24–29 °C

  • 24–26 °C: 30 records
  • 26–28 °C: 282 records
  • 28–30 °C: 589 records

Names and classification

English
Pale-tailed Bristletooth, Whitetail Bristletooth, Whitetailed Surgeonfish
Names in 2 more languages
Spanish
Pez Cirujano de Cola Blanca y Dientes de Peine
French
Chirurgien à queue blanche

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).
  • 1,618 open-data records from 2002 to 2018.
  • Species data updated November 1, 2026.

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