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DescriptionA gherkin-shaped body with glistening white skin and five broad double rows of tube-feet are characteristic of this species. The tentacles are pale brown or pale pink in colour and sparsely-branched. The body is usually covered with particles of shell and is buried in mud. The spicules are flat and irregular with numerous holes. Length up to 10cm by 2cm diameter. Pawsonia saxicola has a similar skin but lives in rocky habitats.