« Shell small, rather solid, colourless, transparent, pointed, distinctly curved. The larval shell consists of 2.5 whorls and is 380µm high. Its whorls are evenly convex, colourless and the initial whorl is bluntly rounded. The holotype has 6 postlarval whorls, perfectly smooth and flat. Suture very indistinct. The incremental scars form an almost perfect series […] The right side of the shell is almost perfectly straight, the left side forms an even curve. The shell is distinctly flattened, i.e. the diameter measured from outer lip to opposite side of shell is larger than the diameter measured at a right angle to this. […] Inner lip reflected over the columella and parietal wall, as a solid callus. Columella straight in its upper part, curved below, continuous with the parietal wall. » – Bouchet & Warén: “Revision of the northeast Atlantic bathyal and abyssal Aclididae, Eulimidae, Epitoniidae (Mollusca, Gastropoda)”, Bollettino malacologico suppl.2, Milano 1986, p.436.