Devonshire cup-corals are so named because they were first discovered in British waters around Devon. They have an internal limestone skeleton shaped like a cup into which they can retract and hide. Devonshire cup-corals have transparent (see-through) tentacles with a small distinctive blob on the end. Stripes of electric blues and greens can be seen between the tentacles. This is the commonest of the five British cup-coral species, usually found underneath the kelp forest and on underwater walls.
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