These pale, cuplike organisms are zoanthids, a soft-bodied animal related to anemones. They were observed covering the coiled skeletons of another unidentified organism during Dive 05 of the third Voyage to the Ridge 2022 expedition.
Zoanthids
Image courtesy of NOAA Ocean Exploration, Voyage to the Ridge 2022. Download larger version (jpg, 1.8 MB).

These pale, cuplike organisms are zoanthids, a soft-bodied animal related to anemones. They were observed covering the coiled skeletons of another unidentified organism during Dive 05 of the third Voyage to the Ridge 2022 expedition.