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Eightspot Dragonet

Callionymus octostigmatus

  • Fish
  • IUCN: Not evaluated
  • Usual depth46–135 m
  • Water temperature21–29 °C
  • Best monthsJune
  • How commonRare
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About this species

Callionymus octostigmatus, the eightspot dragonet, is a species of dragonet native to the central western Pacific Ocean where it occurs at depths of from 49 to 148 metres. This species grows to a length of 15 centimetres (5.9 in) TL.

Text from the Wikipedia article “Callionymus octostigmatus”, 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: 1 records
  • March: 1 records
  • April: 1 records
  • May: 3 records
  • June: 11 records
  • July: 0 records
  • August: 0 records
  • September: 0 records
  • October: 0 records
  • November: 4 records
  • December: 2 records

Depth and water temperature

Depth

Mostly recorded at 46–135 m · Deepest record: 588 m

  • 0–10 m: 1 records
  • 10–20 m: 0 records
  • 20–30 m: 0 records
  • 30–40 m: 1 records
  • 40–50 m: 1 records
  • 50–60 m: 4 records
  • 60–70 m: 4 records
  • 70–80 m: 2 records
  • 80–90 m: 2 records
  • 90–100 m: 2 records
  • 100–110 m: 0 records
  • 110+ m: 5 records

Water temperature

Recorded in surface water of 21–29 °C

  • 20–22 °C: 1 records
  • 22–24 °C: 1 records
  • 24–26 °C: 1 records
  • 26–28 °C: 2 records
  • 28–30 °C: 21 records

Names and classification

English
Eightspot Dragonet
Names in 1 more languages
Simplified Chinese
八斑, 斑臀, 狗圻, 老鼠

Other scientific names: Repomucenus octostigmatus

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).
  • 54 open-data records from 1908 to 1995.
  • Species data updated October 26, 2026.

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