Shell large, up to 70 mm in height and 90 mm in diameter, thin, orbicular, depressedly conical, spire low and whorls convex with hollow blunt protruding spines at the periphery obscuring the suture, tubular spines arise from a weakly scalloped ridge. Foreign objects attached to only the first few whorls and sometimes may be even absent. Aperture oval, base almost flat, umbilicus broad and deep with strong, wavy, uneven, nodulose, oblique radial cords. Colour light brown, aperture smooth, shiny dark brown.