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DiscoverSpeciesCrustaceans

Decorator crab

Hyastenus elatus

  • Crustaceans
  • IUCN: Not evaluated
  • Water temperature20–29 °C
  • Best monthsApril, September, and November
  • How commonOccasional
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Photo credit: (c) Srichakra Pranav Tamarapalli, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist

About this species

Hyastenus elatus is a species of crab in the family Epialtidae. It is one of several decorator crabs, habitually covering itself in aposematic sponges which may also serve as camouflage.

Text from the Wikipedia article “Hyastenus elatus”, 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: 40 records
  • February: 22 records
  • March: 20 records
  • April: 55 records
  • May: 15 records
  • June: 16 records
  • July: 9 records
  • August: 8 records
  • September: 45 records
  • October: 45 records
  • November: 56 records
  • December: 43 records

Depth and water temperature

Water temperature

Recorded in surface water of 20–29 °C

  • 20–22 °C: 54 records
  • 22–24 °C: 21 records
  • 24–26 °C: 98 records
  • 26–28 °C: 88 records
  • 28–30 °C: 2 records

Names and classification

English
Decorator crab, Sponge Decorator Crab
Names in 1 more languages
Japanese
ミナミツノガニ

Other scientific names: Hyastenus verreauxii

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).
  • 279 open-data records from 1898 to 2005.
  • Species data updated November 3, 2026.

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