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Home Unidentified Marine Invertebrates Crabs, Prawns, Barnacles & allies (Crustacea) Crabs (Decapoda, Brachyura)


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Unidentified at suppressed - 28 Dec 2021
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Identification history

Heloecius cordiformis 30 Dec 2021 Jennyncmg
Unidentified 29 Dec 2021 HelenCross

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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

  • 16 - 100 Abundance
  • 28 Dec 2021 09:27 AM Recorded on
  • HelenCross Recorded by

Record quality

  • Images or audio
  • More than one media file
  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
  • GPS evidence of location
  • Description
  • Additional attributes
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