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Northern Calling Fiddler Crab
北方丑招潮蟹
Gelasimus borealis
1/2
Males have uneven-sized pincers in contrast to females.
招潮蟹家族的一員，北方丑招潮蟹雄性有一隻較大的蟹鉗，而雌性則有一對同樣大小的蟹鉗
Males can be identified by the groove found along the unmovable lower finger of the large pincer.
雄性的北方丑招潮蟹可以透過大蟹鉗不可動指的凹槽去識別
Its former Chinese name 北方凹指招潮蟹 refers to its characteristic pincer.
前稱「北方凹指招潮蟹」，名字的由來就是上述所指的蟹鉗
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