Sea urchins I got as presents when I was around ten years old. I think they’re Phyllacanthus imperialis (top) and Echinometra mathaei (bottom). They came with a third one in between them in size, which I think was Heterocentrotus Mammillatus. It may still be around somewhere.
For some reason my camera kept switching out of the macro setting when I tried to focus on the small urchin. I wanted to shoot it from opposite sides with the same angle and lighting, like I did with the big urchin, but most of the photos didn’t come out.












