Close up of a monoplacophoran mollusk, which may be the animal responsible with the trails of ‘clean’ rock observed throughout the dive.

Close up of a monoplacophoran mollusk, which may be the animal responsible with the trails of 'clean' rock observed throughout the dive. Image courtesy of the NOAA Office of Ocean Exploration and Research, 2017 American Samoa.

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2017 American Samoa Expedition: Suesuega o le Moana o Amerika Samoa

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