Attached to it is He Ming, a marine animal belonging to Arthropoda, Crustacea, Tenpoda and bust. Its body is divided into a head with a shell plate and a bare handle, which are widely distributed in all oceans of the world. It can be fixed on rocks or floating objects, such as buoys, dock facilities, the bottom of seagoing ships and the shells of sea creatures such as turtles and crabs, and some species can also be fixed and parasitic on the gills of crabs, such as axe lotus or crab lotus.