Shell of typical size for the genus, adult size up to 7.4 mm; fusiform, elongate. Suture slightly impressed. Whorls rounded. Protoconch typical of the genus: multispiral, 3-3.25 whorls with axial ribs. Transition to the teleoconch clearly visible. Teleoconch with 4.25-4.75 whorls. The first teleoconch whorl shows a very weak axial sculpture of close-set riblets and no spiral sculpture. On the second teleoconch whorl, this axial sculpture diminishes more and ultimately disappears. Spiral sculpture starts on the second teleoconch whorl. On this whorl, the first incised spiral lines are formed below the suture and along this whorl these spirals appear along the entire width of the whorl. All other whorls show this spiral sculpture of close-set incised lines. On the body whorl, these lines continue into the basal cords without interruption. The body whorl shows a thick axial rim just before the aperture, with the spiral sculpture continued. Outer lip slightly thickened on the outside; with the spiral sculpture. Inside of the outer lip not thickened and denticulate, with 8 denticles, upper ones markedly stronger. Above the denticles, a weak posterior canal is present. Columellar callus thickened. Parietal callus weak, almost absent. Columella with rim of merged denticles Siphonal canal short, open, slightly recurved. Teleoconch whorls off-white with a pattern of broad, orangish brown axial lines. Protoconch white to cream. Aperture and columella white to off-white. Holotype height 7.0 mm.

This species is closest to P. suzannae with which it shares the spiral sculpture of close-set incisions. It differs in its smaller adult size, the pattern of axial flames and the more pronounced spiral incisions on the early teleoconch whorls.

French Polynesia, Marquesas, Fatu Hiva.