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Japanese Pygmy Cuttlefish

Idiosepius paradoxus

  • Cephalopods
  • IUCN: Data deficient
  • Water temperature19–29 °C
  • Best monthsApril, June, and August
  • How commonRare
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Photo credit: (c) Chaloklum Diving, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Idiosepius paradoxus, also known as the northern pygmy squid, is a species of pygmy squid native to the western Pacific Ocean. This species can be found inhabiting shallow, inshore waters around central China, South Korea, and Japan.

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

Depth and water temperature

Water temperature

Recorded in surface water of 19–29 °C

  • 18–20 °C: 4 records
  • 20–22 °C: 3 records
  • 22–24 °C: 1 records
  • 24–26 °C: 1 records
  • 26–28 °C: 0 records
  • 28–30 °C: 2 records

Names and classification

English
Japanese Pygmy Cuttlefish, Northern Pygmy Idiosepiid, Northern Pygmy Squid, Paradoxical Pygmy Squid
Names in 2 more languages
Japanese
ヒメイカ
Korean
꼬마오징어

Other scientific names: Microteuthis paradoxus

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).
  • 28 open-data records from 1907 to 2018.
  • Species data updated November 3, 2026.

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