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Sponge Belonging to the Genus Polymastia

Although not as plentiful as they were on Dive 05 of the 2021 North Atlantic Stepping Stones expedition, sponges were fairly well presented during the sixth dive, including several of these curious-looking sponges belonging to the genus Polymastia.

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Credit

Image courtesy of NOAA Ocean Exploration, 2021 North Atlantic Stepping Stones: New England and Corner Rise Seamounts.