Answer:
The 'World's Heaviest Crustacean' is the 'American, or North Atlantic Lobster - Homarus Americanus'. It is also the largest member of Astacidea (lobsters and crayfish). It has been recorded at heavier weights, up to 22 kg (48.4 lb), and can measure 1.18 m (3.9 ft) along the body.
Category : Echinoderms
Category : Crustaceans
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