Pachygrapsus marmoratus  (Fabricius, 1787)
Main synonym = Cancer marmoratus    Fabricius, 1787
Taxonomical Classification:  Animalia / Arthropoda / Crustacea / Decapoda / Grapsidae
Mediterranean Shore Crab, Marbled Rock Crab     Granċ tax-xatt
Further Information:
Found on all rocky shores. Flattened for easy retreat into rock crevices. Can walk forwards, backwards and sideways so that it can manoeuvre in confined spaces and actually quite difficult to catch. It can grow up to the size of a palm as shown in one of the photos below, but often found with a carapace of 2-5cm. They also vary to some degree in their colour from brown to dark green.

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