Triboniophorus sp. nov. 'Kaputar', also known as Triboniophorus aff. graeffei, or the Mount Kaputar pink slug, is a species of giant air-breathing land slug with a distinctive hot pink hue. These slugs are found on Mount Kaputar in Australia. Taxonomists have confirmed that these slugs are not conspecific with the better-known "red triangle slug", Triboniophorus graeffei.