DOSI Deep-Sea Round-Up

This pelagic holothurian (Pelagothuria natatrix), or swimming sea cucumber, is unusual in appearance when compared with other sea cucumbers because of its resemblance to a jellyfish. It was photographed at ~1,400 m depth during NOAA’s Mountains of the Deep: Exploring the Central Pacific Basin expedition. Image courtesy of the NOAA Office of Ocean Exploration and Research.