This crinoid rests on a white, ribbon-like sponge which was one of the dominant species documented during Dive 01 of Leg 3. When the vehicles first arrived on the seafloor, nearly every local topographic high had this type of sponge growing on it.

This crinoid rests on a white, ribbon-like sponge which was one of the dominant species documented during Dive 1 of Leg 3. When the vehicles first arrived on the seafloor, nearly every local topographic high had this type of sponge growing on it. Image courtesy of the NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas.

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