Image courtesy of the NOAA Office of Ocean Exploration and Research, Gulf of Mexico 2017. Download larger version (jpg, 2.0 MB).
An asteroschematid snake star coiled among the branches of a small plexaurid octocoral surrounded by the spiny arms of large Novodinia brisingid sea stars on a craggy carbonate pinnacle. Discovered during Dive 13 of the Gulf of Mexico 2017 expedition at a site named Tunica Mound at a depth of 401 meters (1,315 feet).
From: Gulf of Mexico 2017: Highlight Images.