The purple sea urchin is the usual intertidal sea urchin of exposed as well as semi-protected rocky areas on the west coast of The United States and Canada from Baja, The Golden State, to Sitka, Alaska. In the eastern Pacific, it is discovered as far north as Factor Barrow, Alaska, and southward to Washington. It takes place in the Aleutian Islands and westward to Kamchatka, Korea, and Hokkaido, Japan. In the north Atlantic, it is located on the East Shore of the U.S. and Canada, and in Greenland, Iceland, as well as north Europe. Sea urchins move by strolling, utilizing their lots of flexible tube feet in a way comparable to that of starfish; regular sea urchins do not have any kind of preferred strolling instructions. During locomotion, television feet are assisted by the spinal columns which can be used for pressing the body along or to raise the examination off the substrate.