A red sea cucumber resting on white sand among dark rocks on the ocean floor.
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Sea Cucumber
This red Synallactid  sea cucumber with thin papillae was seen feeding on sediment at a depth of approximately 3,200 meters (2 miles) during Dive 12 of the 2026 American Samoa ROV + Mapping Exploration expedition.
Credit

NOAA Ocean Exploration, 2026 American Samoa ROV + Mapping Exploration