Tag: Diadem Sea Urchin

Macro shot of a diadem sea urchin (Diadema setosum). The red anal cone between the blue-black spines is clearly visible.
A small orange-red shrimp hides among the long violet-black spines of a diadem sea urchin. The shot shows the typical protective community between shrimps or other small fish and the venomous sea urchins.
A diadem sea urchin displays its characteristic long, black spines with vivid blue tips. The shot offers a fascinating view into the spine structure of this nocturnal echinoderm, with the blue fluorescence of the spine tips particularly striking.
A diadem sea urchin with its characteristic long, pointed spines in a dramatic close-up. The red-violet and striped spines radiate from the central body, while a spotted fish is visible in the background.