A dark red crinoid perched atop a sponge that has colonized another dead sponge, seen during Dive 04 of the third Voyage to the Ridge 2022 expedition.
Crinoid Atop a Sponge
Image courtesy of NOAA Ocean Exploration, Voyage to the Ridge 2022. Download larger version (jpg, 1.6 MB).

A dark red crinoid perched atop a sponge that has colonized another dead sponge, seen during Dive 04 of the third Voyage to the Ridge 2022 expedition.