Scotoplanes live on or just underneath the surface of the bottom of the ocean, on the abyssal plain. They look and act a bit slug-like. They feed on the mud of the sea floor, benefiting from the organic materials that settle to the ocean bottom.
GalleriesSea Urchins and Sea Stars
Hazlitt Alva Cuppy PH.D., Editor Beauties and Wonders of Land and Sea (Springfield, OH: Mast, Crowell & Kirkpatrick, 1895)