Uca tangeri
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Uca tangeri
West African fiddler crab
Female.
Portugal, distrito de Faro, Quinta da Rocha.
8/21/2017
IE016'04-170821109'JJK
The genus Uca shows strong sexual dimorphism manifested by extensive development of one of male's claws. Large claw, that represents almost a half of body weight, is used for territorial fighting and for a waving display.