"Where there is perhaps a province in which the photograph can tell us nothing more than what we see with our own eyes, there is another in which it proves to us how little our eyes permit us to see." ~Dorothea Lange
Brett, a fantastic shot of this rare sea urchin. I believe it is a West Indian Sea Egg ~ a short spined sea urchin that is also edible. You are lucky ~ I always keep my fish & creature ID books next to my PC. The colors are perfect on this close-up view of the urchin. Faves!
I can barely imagine the additional challenges that photography underwater provides but I suspect this shot was not so simple as it's content suggests. :)
:)PJ