At this water depth there is a pressure of 161 kilos per square centimeter, or 1610 tons per square meter!
The octopus was found above a soft, silty sedimentary bottom with some starfish stars, fish such as lizard eels and codfish (Antimora rostrata), sea urchins, anemones, and empty Bathymodiolus mussel shells.
Large bacterial mats were visible on the seafloor, followed by some outcrops of authigenic carbonate rocks and living Bathymodiolus deep-sea mussels.
Among the living mussels discovered were Gigantidas childressi (Gustafson, R. D. Turner, Lutz & Vrijenhoek, 1998), formerly Bathymodiolus childressi and Bathymodiolus heckerae (R. D. Turner, Gustafson, Lutz & Vrijenhoek, 1998).
The deep-sea octopus had a mantle length of about 11.3cm, the arms reached about 39.7cm, so that a total length of 51cm was calculated.
Benthoctopus johnsonianus Allcock, Strugnell, Ruggiero & Collins, 2006