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