A purple holothurian with numerous spike-like appendages on its back.
Image ID: expn3559, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Puerto Rico ENE of Mona Island approx. 550 m
Photo Date: 20150415T144554Z
Credit: NOAA OKEANOS EXPLORER Program, Oceano Profundo 2015; Exploring Puerto Rico's Seamounts, Trenches, and Troughs
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