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Flower Crab

scientificPortunus pelagicus
foundwarm coastal shallows · Southeast Asia
seasonyear-round in the tropics

Southeast Asia's answer to the blue swimmer, and a night-market legend. The flower crab gets its name from the pale marbled "flower" pattern splashed across its shell — vivid when raw, deepening to red-and-white when cooked and dropped into a chili or curry sauce. This one came out of a Thai seafood tray, exactly where it belongs.

Identifying

  • shell marbled with a pale blue-and-white "flower" mosaic, a long spine at each side
  • swimming paddles on the rear legs — a close cousin of the Australian blue swimmer
  • males more blue, females browner; long slender pincers
  • cooks to a bright orange-red mottled with cream

Facts

  • one of the most heavily fished crabs on Earth — a staple protein across Southeast Asian coasts
  • the same Portunus swimming-crab family as the blue swimmer, adapted to warm tropical shallows
  • built for chili crab, salted-egg, and curry — the sauce is half the point

Cook this find

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Flower Crab