Tasmanian crab

crustacean

Also known as: Pseudocarcinus gigas

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Last updated

July 14, 2026

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The Tasmanian crab (Pseudocarcinus gigas) is one of the largest known crustaceans. It is a type of crab, which belongs to the order Decapoda within the class Crustacea. Crabs are characterized by their short tails that are curled under their thorax and a broad carapace, or upper body shield. The first pair of legs is typically modified into pincers.12

Tasmanian crabs can weigh over 9 kg (20 pounds), with a carapace measuring up to 46 cm (18 inches) across. Their claws are notably stout, with the major claw potentially reaching 43 cm (17 inches) in length. These crabs are found in the waters around Tasmania.1

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crab
Distribution and variety
…Japan (Macrocheira kaempferi) and the Tasmanian crab (Pseudocarcinus gigas) are two of the largest known crustaceans. The former may span nearly 4 metres (12 feet) from tip to tip of its outstretched legs. The Tasmanian crab, which may weigh well over 9 kg (20 pounds), has much shorter, stouter claws;…
Read More
…Japan (Macrocheira kaempferi) and the Tasmanian crab (Pseudocarcinus gigas) are two of the largest known crustaceans. The former may span nearly 4 metres (12 feet) from tip to tip of its outstretched legs. The Tasmanian crab, which may weigh well over 9 kg (20 pounds), has much shorter, stouter claws;…
Read More