Marine Invertebrates
Crabs, Prawns, Barnacles & allies (Crustacea)
Crabs (Decapoda, Brachyura)
Sighting 4414724

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Identification history

Heloecius cordiformis 30 Dec 2021 Jennyncmg
Unverified 29 Dec 2021 HelenCross

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2 comments

Jennyncmg wrote:
   30 Dec 2021
Good photos Helen. The males of these crabs wave their claws about in the air to signal to potential mates - hence the semaphore common name. The fold down eyestalks let them duck into their burrows quickly if danger threatens
HelenCross wrote:
   30 Dec 2021
Thanks Jenny - they're fun to watch

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Sighting information

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  • Nearby sighting(s) of same species
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