A large spatangoid urchin with prominent spines was observed in conjunction with sediment traces on a large sediment bed.
Urchin
Image courtesy of the NOAA Office of Ocean Exploration and Research, 2017 Laulima O Ka Moana.
A large spatangoid urchin with prominent spines was observed in conjunction with sediment traces on a large sediment bed. Download larger version (jpg, 2.1 MB).
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