Shell size typical for genus, adult size up to 8.4 mm; fusiform, elongate. Suture slightly incised, whorls slightly shouldered. Protoconch paucispiral, -1.6-1.7 smooth whorls. Teleoconch of 4.25 whorls. Axial sculpture absent. Spiral sculpture of six very broad flattened spiral cords, with narrow, groove-like interspaces, on first whorl, increasing in number adapically; basal cords difficult to differentiate from spiral cords. Outer lip slightly thickened, bearing continuation of spiral cords. Inner lip denticulate, with seven denticles of unequal strength. Columellar callus thickened. Parietal callus thickened. Columella typically with three denticles. Siphonal canal short, open, straight. Teleoconch whorls off-white in colour, with band of pale brown blotches at mid-whorl. Protoconch white, semi-translucent. Aperture and columella off-white. Holotype height 6.9 mm.

This slender species is most similar to Sulcomitrella monodonta, but differs in the paucispiral protoconch, the shouldered whorls, the incised suture, the columellar denticles and the colour pattern.

New Caledonia. 222-508 m.