A tube anemone (Cerianthid). Cerianthid anemones construct a tube of mucous, mud, and fired nematocysts(small hair-like structures produced within specialized cells) that may extend a meter deep into the sediment.

Image ID: expl2417, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photo Date: 2005 September 1.
Credit: North Atlantic Stepping Stones Science Party, IFE, URI-IAO; NOAA/OAR/OER

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