[2] (Original description by R. Tate) The shell has a lenticular-conoid shape, about equally sloping above and below from the angular periphery.

The upper surface of the body whorl shows a stout and a broad lira next to the suture, which is transversely crenulate-ridged.

The periphery is bluntly angled by a slightly compressed convex keel, which is obsoletely crenulated.

The umbilical region is bounded by a broad ridge, which is broken up into claviform tubercles obliquely disposed.

The colour is greenish-brown in living specimens, flesh-coloured with rufous lirae and darker tinted at the suture and keel in beach examples.