David Fleetham / Close look between the spines of Slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii.
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David Fleetham / Slate pencil sea urchins (Heterocentrotus mammillatus) in reef scene, Hawaii.
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David Fleetham / Slate pencil sea urchins (Heterocentrotus mammillatus), pennantfish / bannerfish (Heniochus diphreutes) and moorish idols (Zanclus cornutus) on reef, Hawaii.
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David Fleetham / Red liomera crab (Liomera rubra) female holding a tail full of eggs in a slate pencil sea urchin (Heterocentrotus mammillatus) at night, Hawaii.