Australoplax tridentata

Australoplax tridentata, commonly known as the furry-clawed crab or tuxedo shore crab is a species of crab in the family Macrophthalmidae  that is found in Queensland, New South Wales and the Northern Territory.

Description
Claws are blue. Adult males have large claws, adult females small claws. Adult males have a patch of fur at the base of the fingers. The carapace breadth is up to 15 mm. It lives in mangroves and muddy creek banks.