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DescriptionA small brittle star with very long arms which lives buried in muddy sand. Dorsal and ventral surfaces of the disc are covered with small scales. There are 4-6 conical arm spines, none widened or flattened at the tips and 2 large tentacle scales. Disc 9-10mm. arms 9x disc diameter. Other Amphiura species are similar. Mixed populations of this species and Amphiura filiformis are common.