Pareuthria fuscata is a species of sea snail, a marine gastropod mollusk in the family Cominellidae.

The whorls of the spire are convex, bent obliquely at the suture, and marked in that part by slightly projecting and distant longitudinal folds.

The body whorl is partially free of these, and those perceptible there, are only slightly obvious on the upper half of the side of the aperture.

The lips are a whitish, clear fawn-color, but the depth of the cavity presents the same tint as the exterior.

It has, towards its upper part, an oblique fold, which seems to widen the aperture and partially forms the obtuse angle.