Shell rather elongated, with eight or nine whorls, and six spiny rib-like varices; spines short, slightly upcurved, only a single one to each varix on the upper whorls, about six on each varix of the body whorl and the canal; these are open in front; sculpture consisting of low, rather sharp, revolving ribs, which on the varices develop into the spines; the spaces between these ribs is concave. Outer lip toothed within; inner lip generally somewhat raised at its edge. Color whitish; the spines often purple, and sometimes the shell has purplish tints.
Length, 85; diameter, across the spines 23, across the body whorl 15 mm.