video
Salp House
During the first dive of the second Voyage to the Ridge 2022 expedition, we observed a couple of these hyperiid amphipods swimming in the water column. This particular one, seen at 808 meters (2,651 feet) depth, had taken over the mucus house of a salp, which is a kind of free-swimming tunicate. The amphipods belong to the suborder Hyperiidea and are supposedly the inspiration for the queen alien in the movie, Alien.
Credit

Video courtesy of NOAA Ocean Exploration, Voyage to the Ridge 2022.

Related Expedition
Voyage to the Ridge 2022