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Sally Lightfoot Crab Video Stock Footage

Grapsus grapsus is a typically shaped crab, with five pairs of legs, the front two bearing small, blocky, symmetrical chelae (claws). The other legs are broad and flat, with only the tips touching the substrate. The crab's round, flat carapace is slightly longer than 8 centimetres (3.1 in). Young G. grapsus are black or dark brown in colour and are camouflaged well on the black lava coasts of volcanic islands. Adults are quite variable in colour some are muted brownish-red, some mottled or spotted brown, pink, or yellow. The species Grapsus grapsus and G. adscensionis were not separated until 1990. The latter is found in the eastern Atlantic, while the former is not. While the validity of the separation into two species has been questioned, there are constant morphological differences in the colouration of the pereiopods and the form of the first zoea larva, and no evidence for any genetic connection between the two populations, and they are generally treated as separate species. Learn more about Sally Lightfoot Crab

View related species in family group: Crab

Animalia: Arthropoda: Decapoda: Malacostraca: Grapsidae: Grapsus grapsus

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