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Japanese spider crab : ウィキペディア英語版 | Japanese spider crab
The , ''Macrocheira kaempferi'', is a species of marine crab that lives in the waters around Japan. It has the largest leg span of any arthropod. It is the subject of small-scale fishery which has led to some conservation measures. ==Description==
The Japanese spider crab has the greatest leg span of any arthropod, reaching from claw to claw. The body may grow to a size of (carapace width) and the whole crab can weigh up to —second only to the American lobster among all living arthropod species. The males have the longer chelipeds;〔 females have much shorter chelipeds, which are shorter than the following pair of legs.〔 Apart from its outstanding size, the Japanese spider crab differs from other crabs in a number of ways. The first pleopods of males are unusually twisted, and its larvae appear primitive. The crab is orange, with white spots along the legs.〔(【引用サイトリンク】title=Japanese Spider Crabs Arrive at Aquarium )〕 It is reported to have a gentle disposition, despite its ferocious appearance.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Japanese spider crab」の詳細全文を読む
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