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Sidespotted Dragonet

Callionymus pleurostictus

  • Fish
  • IUCN: Not evaluated
  • Usual depth1–16 m
  • Water temperature24–30 °C
  • Best monthsNovember
  • How commonRare
All species

Photo credit: (c) Rickard Zerpe, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Callionymus pleurostictus, the blue-spotted ruddertail dragonet, is a species of dragonet native to the Pacific Ocean where it is found from the Ryukyus south to Australia. This species occurs at depths of from 1 to 20 metres. This species grows to a length of 2.3 centimetres (0.91 in) SL.

Text from the Wikipedia article “Callionymus pleurostictus”, 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: 4 records
  • February: 4 records
  • March: 5 records
  • April: 7 records
  • May: 3 records
  • June: 0 records
  • July: 0 records
  • August: 1 records
  • September: 2 records
  • October: 6 records
  • November: 15 records
  • December: 2 records

Depth and water temperature

Depth

Mostly recorded at 1–16 m · Deepest record: 23.6 m

  • 0–10 m: 16 records
  • 10–20 m: 3 records
  • 20–30 m: 2 records

Water temperature

Recorded in surface water of 24–30 °C

  • 24–26 °C: 5 records
  • 26–28 °C: 28 records
  • 28–30 °C: 21 records

Names and classification

English
Sidespotted Dragonet
Names in 2 more languages
Japanese
ゴマイトヒキヌメリ
Simplified Chinese
狗圻, 白臀, 老鼠, 胡麻

Other scientific names: Pseudocalliurichthys pleurostictus

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).
  • 81 open-data records from 1960 to 2016.
  • Species data updated October 26, 2026.

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