Perrinia nigromaculata is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.

The body whorl descends in front and here the ribs form irregular lamellae.

The base of the shell is convex, with 5 spiral, beaded lirae, the interstices with strong, irregular lamellae.

The outer and basal margins are thin, thickened interiorly, with 10 conspicuous lirae, that nearest the columella toothlike.

The columella is cylindrical, with a groove round its upper part, running at its left side towards a square notch, formed by a square, toothlike fold at the basal part and the most proximal of the internal lirae of the base.