Coral gall crab
Hapalocarcinus marsupialis
- Usual depth3–20 m
- Water temperature22–30 °C
- Best monthsMay, June, and December
- How commonRare
Photo credit: (c) Alberto Alcalá, some rights reserved (CC BY) · CC BY · iNaturalist
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 4 records
- February: 4 records
- March: 2 records
- April: 2 records
- May: 9 records
- June: 9 records
- July: 8 records
- August: 2 records
- September: 3 records
- October: 3 records
- November: 1 records
- December: 12 records
Depth and water temperature
Depth
Mostly recorded at 3–20 m · Deepest record: 23 m
Water temperature
Recorded in surface water of 22–30 °C
Photos
(c) Alberto Alcalá, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Daniel Eisenhauer, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Coral gall crab, coral gall crab, Coral Gall Crab
Names in 2 more languages
- Spanish
- Cangrejo de agallas de coral
- Japanese
- サンゴヤドリガニ
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).
- 214 open-data records from 1857 to 2026.
- Species data updated November 3, 2026.
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