This mystery and very little known fishes are found in temperate and tropical seas worldwide, from 660 to 6,600 ft in depth. Rhinochimaeridae range from 2 to 4.5 ft in maximum total length.
This strange fish can grow up to 5 ft long and have a very venomous dorsal spine.
Give alook at the video taken by researchers from the "Japan Agency for Marine Science and Technology".