They are usually found in rockpools, at the base of the kelp plants or in cracks and crevices in the rocky seabed. Generally shy and skittish animals they feed on scraps of food, from both plants and animals. Alive they are transparent (see-through) with fine yellow and red markings on the shell and legs. They form the staple diet of many of the predators in Lundy waters, such as cuttlefish, wrasses and other large fish, and anemones, so usually come out at night-time.
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