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DescriptionA small and distinctive 'louse-like' isopod. The body is flattened with an oval outline. It has large eyes, positioned laterally and a long second pair of antennae. It may be pale grey to brown in colour, with black spots covering all surfaces of the body.British coastal isopods have been described by Naylor (1972, 1990). A second intertidal species of Eurydice, Eurydice affinis Hansen, is also found on British shores. It is distinguished from Eurydice pulchra by an overall paler appearance, with black spots only on its dorsal surface. In Britain it has a more restricted distribution than Eurydice pulchra, from south-west England into North Wales, where it occurs amongst populations of Eurydice pulchra.