Image courtesy of the NOAA Office of Ocean Exploration and Research, Hohonu Moana 2016. Download larger version (jpg, 887 KB).
This crinoid, sometimes also called a feather star, was observed perched on top of a dead coral stalk on an unnamed seamount in the Papahānaumokuākea Marine National Monument during the 2016 Hohonu Moana: Exploring Deep Waters off Hawaiʻi expedition.