Slate Pencil Urchin Collection

Slate pencil sea urchins (Heterocentrotus mammillatus) on coral reef with Pyramid butterflyfish (Hemitaurichthys polylepis), Hawaii

Slate pencil sea urchins (Heterocentrotus mammillatus) in Hawaiian reef scene with Black triggerfish (Melichthys niger) Hawaii

Close up look between the spines of a Slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii, Pacific Ocean

Ten-lined urchin (Eucidaris metularia) nestled on a reef, close up, Hawaii, Pacific Ocean

Slate pencil sea urchin (Heterocentrotus mammillatus) on a reef with Black triggerfish (Melichthys niger) and a Bluestripe snapper (Lutjanus kasmira) swimming above, Maui, Hawaii, Pacific Ocean

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