rainbow crab
Goniosupradens erythrodactylus
- Usual depth1 m
- Water temperature25–29 °C
- Best monthsJanuary and August
- How commonRare
Photo credit: (c) Robin White, 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: 8 records
- February: 1 records
- March: 3 records
- April: 3 records
- May: 3 records
- June: 3 records
- July: 6 records
- August: 12 records
- September: 2 records
- October: 3 records
- November: 0 records
- December: 4 records
Depth and water temperature
Depth
Mostly recorded at 1 m · Deepest record: 1 m
Water temperature
Recorded in surface water of 25–29 °C
Photos
(c) Lisa Bennett, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Lisa Bennett, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- rainbow crab, Rainbow Swimming Crab
Names in 2 more languages
- French
- Crabe arc-en-ciel
- Japanese
- マダライシガニ
Other scientific names: Charybdis (Goniosupradens) erythrodactyla, Charybdis (Goniosupradens) erythrodactylus, Charybdis erythrodactyla, Portunus erythrodactylus, Thalamita erytho-dactyla, Thalamita pulchra, Thalamita Teschoiraei
Similar species
Blue Rimmed Swimming CrabGoniosupradens obtusifrons
Blue swimming crabPortunus pelagicus
- Asian paddle crab
Charybdis (Charybdis) japonica
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).
- 45 open-data records from 1818 to 1968.
- Species data updated November 3, 2026.
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