Coscinasterias muricata
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Coscinasterias muricata is a species of starfish in the family Asteriidae. It is a large 11-armed starfish and occurs in shallow waters in the temperate western Indo-Pacific region.
Crab
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Crabs are decapod crustaceans, either the Brachyura or various groups within the closely related Anomura, characterised by having a heavily armoured shell, their tail segments concealed under the body
Adult pea crab, one of the smallest species, a few millimetres across
Coconut crab, the largest terrestrial arthropod, weighing up to 4.1 kg (9 lb)
Japanese spider crab, with a leg span of as much as 4 m (13 ft)
The mottled lightfoot crab is herbivorous.