Decapoda, Estuary crab

Swan Coastal Plain, Perth, Western Australia

Crabs like these occur in large numbers along the lower reaches of the Swan-Canning Estuary, where they can be found under limestone rocks just above the waterline. I do not know what species this crab belongs to.

Photographed for the Meet Your Neighbours international nature photography project in Perth, Western Australia.

Canon EOS 7D with Sigma 105mm f/2.8 EX DG Macro lens; 1/250s at f/16 ISO 250, flash fired: from hand.