No photo available
Tetragonal fiddler crab
Gelasimus tetragonon
Valid name (WoRMS, AphiaID 210223, checked 2026-10-31).
- English
- Tetragonal fiddler crab
- Scientific
- Gelasimus tetragonon
- Dhivehi
- No recorded Dhivehi name
- Group
- Crabs
- Depth and habitat
- Shore: beaches, rocks and coastal vegetation at and above the high-tide line
- IUCN status
- NE · Not EvaluatedNot Evaluated (NE)
Description
A fiddler crab: the male has one hugely enlarged, colourful claw that it waves to attract females and warn off rivals. The shell is often blue, turquoise or brown. It lives in burrows on sheltered sandy or muddy shores and lagoon flats.
In the Maldives
Recorded from the Maldives: museum specimens (n=1); iNaturalist research-grade observations in the Maldives (n=16, 13 observers).
Sources
- marinespecies.org /aphia.php?p=taxdetails&id=210223
- inaturalist.org /taxa/555989
- commons.wikimedia.org /wiki/File:Blue_backed_Fiddler_Crab._Blue-backed_Fiddler_Crab._Uca_tet
Dhivehi name source: No species-level Dhivehi name found in Dhivehi Wikipedia, SeaLifeBase (country: Maldives) or MRS/MMRI invertebrate publications.