Urchin ID, please

[MarinaP]

Nothing can be seen through the spikes, no body, no feet, nothing.

Thanks.

 

[charlesr1958]

While I'm unable to ID your sea urchin, I thought you might find this article of interest if you haven't seen it already.

http://www.reefkeeping.com/issues/2003-11/rs/index.php

Chuck's Hitch Hikers

Chuck

 

[mar-y-sol]

it looks almost like a long spine sea urchin from the caribbean, they almost went extinct about 2 decades ago