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Mauve Eyed Hermit Crab

Dardanus crassimanus

  • Crustaceans
  • IUCN: Not evaluated
  • Usual depth1–52 m
  • Water temperature20–27 °C
  • Best monthsJanuary, March, and December
  • How commonOccasional
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Photo credit: (c) Eldon E Ball, some rights reserved (CC BY) · CC BY · iNaturalist

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 118 records
  • February: 71 records
  • March: 84 records
  • April: 78 records
  • May: 64 records
  • June: 47 records
  • July: 37 records
  • August: 26 records
  • September: 65 records
  • October: 75 records
  • November: 66 records
  • December: 110 records

Depth and water temperature

Depth

Mostly recorded at 1–52 m · Deepest record: 52.3 m

  • 0–10 m: 6 records
  • 10–20 m: 0 records
  • 20–30 m: 0 records
  • 30–40 m: 0 records
  • 40–50 m: 1 records
  • 50–60 m: 1 records

Water temperature

Recorded in surface water of 20–27 °C

  • 20–22 °C: 6 records
  • 22–24 °C: 26 records
  • 24–26 °C: 4 records
  • 26–28 °C: 6 records

Names and classification

English
Mauve Eyed Hermit Crab
Names in 3 more languages
Japanese
イシダタミヤドカリ
Korean
벽돌길왼손집게
Simplified Chinese
厚掌真寄居蟹, 厚腕真寄居蟹

Other scientific names: Pagurus crassimanus, Pagurus pavimentatus, Pagurus sculptipes

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.
  • Conservation status as published by GBIF (IUCN Red List).
  • 133 open-data records from 1975 to 2023.
  • Species data updated November 2, 2026.

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