ClipArt ETC
"A general name on the Pacific coast of the United States for marine shells of the family <em>Haliotid&aelig; </em>(which see), having an oval form with a very wide aperture, a narrow, flattened ledge or columella, and a subspiral row of perforations extending from the apex to the distal margin of the shell."&mdash;Wright, 1902

Abalone

"A general name on the Pacific coast of the United States for marine shells of the family Haliotidæ…