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Gecarcinus lateralis, also known by the common names blackback land crab, Bermuda land crab, red land crab (leading to easy confusion with Gecarcoidea natalis) and moon crab (leading to easy confusion with G. quadratus and Cardisoma spp.), is a colourful crab from the family Gecarcinidae. As suggested by the name blackback land crab, it has a large blackish spot, which, although the exact shape is variable, covers a large part of the central carapace ("back"). The legs, claws and outer sections of the carapace are reddish, orange or whitish. The carapace may reach a width of up to 11 centimetres (4.3 in).
I see in the wild, he was crossing the road when I travel to the island of Simeulue, Aceh.