Samehada (鮫肌, Literally meaning: Shark Skin) is one of the swords of the Seven Ninja Swordsmen of the Mist, wielded by Kisame Hoshigaki. The sword shreds the flesh of enemies rather than cutting or slicing them. It also has the ability to absorb chakra. The sword itself is also sentient.
Though mostly wrapped in bandages, Samehada's construction is atypical in that its actual blade is comprised from a series of downward facing scales running along the entirety of its length until its hilt, at the base of which is a small skull. It also has a mouth, located at the tip of the blade.