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Hexactinellid Glass Sponge

Sponges were the most abundant type of life seen during the fifth dive of the 2021 North Atlantic Stepping Stones expedition. This hexactinellid glass sponge with several siliceous, fibrous rays attaching it to the seafloor was seen at a depth of approximately 4,140 meters (2.6 miles).

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Credit

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