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Bearded Ghoul

Inimicus didactylus

  • Fish
  • IUCN: Least concern
  • Usual depth1–74 m
  • Water temperature23–30 °C
  • Best monthsJanuary, April, and October
  • How commonRare
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About this species

Inimicus didactylus, also known as sea goblin, demon stinger or devil stinger or red sea walkman, is a Western Pacific member of the Inimicus genus of venomous fishes, closely related to the true stonefishes. It can reach a body length of 25 cm (10 in) and is irregularly surfaced with spines and a knobby appearance. The fish has venomous spines to ward off enemies. The fish are nocturnal, and often dig themselves partially into the sandy seabed during the day. The body is red or sandy yellow and well camouflaged on sandy and coral seabeds.

Text from the Wikipedia article “Inimicus didactylus”, 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: 5 records
  • February: 3 records
  • March: 2 records
  • April: 8 records
  • May: 4 records
  • June: 0 records
  • July: 3 records
  • August: 2 records
  • September: 2 records
  • October: 8 records
  • November: 4 records
  • December: 2 records

Depth and water temperature

Depth

Mostly recorded at 1–74 m · Deepest record: 94.5 m

  • 0–10 m: 11 records
  • 10–20 m: 4 records
  • 20–30 m: 3 records
  • 30–40 m: 3 records
  • 40–50 m: 2 records
  • 50–60 m: 2 records
  • 60–70 m: 4 records
  • 70–80 m: 1 records
  • 80–90 m: 2 records
  • 90–100 m: 1 records

Water temperature

Recorded in surface water of 23–30 °C

  • 22–24 °C: 5 records
  • 24–26 °C: 7 records
  • 26–28 °C: 17 records
  • 28–30 °C: 35 records

Names and classification

English
Bearded Ghoul, Bearded Ghoulfish, Demon Stinger, Devil Stinger, Devil Stingerfish, Goblinfish, Indian Walkman, Longsnout Stinger, Longsnout Stingerfish, lumpfish, Spiny Devilfish
Names in 3 more languages
French
Poisson-démon
Japanese
Himeoniokoze, ヒメオニオコゼ
Simplified Chinese
石狗公, 石頭魚, 虎魚, 貓魚, 雙指鬼鮋, 鬼虎魚, 魚虎

Other scientific names: Scorpaena didactyla

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).
  • 144 open-data records from 1769 to 2019.

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