Mictyris platycheles is a species of crab found on mudflats on the east coast of Australia from Tasmania and Victoria to Queensland. They live in large groups, so are commonly called soldier crabs. Adults are 15 mm (0.59 in) across and similarly tall, and are coloured blue to blue-grey. Mictyris platycheles gets its food by picking up balls of sands and putting it in its mouth, which filters out the food particles (detritus).



source - Wikipedia

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