An unknown urchin perched on the underside of a large boulder of volcanic origin at Liszt Seamount.
Unknown Urchin
Image courtesy of the NOAA Office of Ocean Exploration and Research, Deep-Sea Symphony: Exploring the Musicians Seamounts. Download larger version (jpg, 1.9 MB).

An unknown urchin perched on the underside of a large boulder of volcanic origin at Liszt Seamount.

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