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Print/export Download as PDF; ... Macrocheira is a genus of crab in the superfamily Majoidea. [1] It contains the Japanese spider crab ...
The Japanese spider crab (Macrocheira kaempferi) is a species of marine crab and is the biggest one that lives in the waters around Japan. At around 3.7 meters, it has the largest leg-span of any arthropod .
family Majidae Samouelle, 1819 – "true" spider crabs; family Mithracidae Balss, 1929; family Oregoniidae Garth, 1958; family †Priscinachidae Breton, 2009; Notable species within the superfamily include: Japanese spider crab (Macrocheira kaempferi), the largest living species of crab, found on the bottom of the Pacific Ocean.
Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... Horsehair crab; J. Japanese spider crab; L. Lithodes longispina;
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Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to 4 m (13 ft). [6] Several other groups of crustaceans with similar appearances – such as king crabs and porcelain crabs – are not true crabs, but have evolved features similar to true crabs through a process known as carcinisation .
3.7 m – leg span of a Japanese spider crab; 3.7 m – length of a southern elephant seal, the largest living pinniped; 5 m – length of an elephant; 5.2 m – height of a giraffe [122] 5.5 m – height of a Baluchitherium, the largest land mammal ever lived; 6.5 m – wingspan of Argentavis, the largest flying bird known