We saw this type of sea urchin at several sites, generally on soft bottoms.

We saw this type of sea urchin at several sites, generally on soft bottoms. Image courtesy of Lophelia II 2008: Deepwater Coral Expedition: Reefs, Rigs, and Wrecks.

Related Links

Lophelia II 2008

Lophelia II 2008: Sept 30 Log

NOAA Ocean Explorer Gallery