Crab with blue legs

"Portunus pelagicus", also known as the "flower crab", "blue crab", "blue swimmer crab", "blue manna crab" or "sand crab", also known as alimasag in Tagalog, is a large crab found in the intertidal estuaries of the Indian and Pacific Oceans and the Middle-Eastern coast of the Mediterranean Sea. The name "flower crab" is used in east Asian countries while the latter names are used in Australia. The crabs are widely distributed in eastern Africa, Southeast Asia, East Asia, Australia and New Zealand.