Inversed Fiddler Crab

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 11 records
February: 6 records
March: 9 records
April: 1 records
May: 5 records
June: 5 records
July: 6 records
August: 5 records
September: 4 records
October: 9 records
November: 8 records
December: 8 records

Depth and water temperature

Water temperature

Recorded in surface water of 26–29 °C

24–26 °C: 1 records
26–28 °C: 42 records
28–30 °C: 12 records

Photos

(c) Sameer Shaik, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Morten Ross, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Borja Fierro-Leva, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Micha Baum, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Edmundas Greimas, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Jiro Iguchi, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Bart, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Inversed Fiddler Crab

Names in 1 more languages

Simplified Chinese: 倒螯克氏招潮

Other scientific names: Gelasimus inversus, Gelasimus smithii, Uca (Cranuca) inversa, Uca inversa

Similar species

Pink-clawed Fiddler Crab
Austruca annulipes
Milky Fiddler Crab
Austruca lactea
Bengal Fiddler Crab
Austruca bengali
Citrus Fiddler Crab
Austruca citrus
Iranian Fiddler Crab
Austruca iranica
Banana Fiddler Crab
Austruca mjobergi

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).
114 open-data records from 1874 to 2017.
Species data updated November 1, 2026.