On this muddy substrate, at about 500 meters depth, with occasional patches of cobble and boulders sits a black crinoid. Most of the crinoids encountered in this area are lighter in color. Image courtesy of Lewis and Clark 2001, NOAA/OER.
On this muddy substrate, at about 500 meters depth, with occasional patches of cobble and boulders sits a black crinoid. Most of the crinoids encountered in this area are lighter in color. Image courtesy of Lewis and Clark 2001, NOAA/OER.