« Shell oval-oblong, a little conical, acute at its summit, transparent, smooth, although marked with slight streaks when viewed with a magnifying glass. In its naturalness it has a greenish color. The spire has six to seven whorls. The aperture is oval and the peristome simple. Slight umbilical slit. Operculum thin and smooth. » – J. Draparnaud: Histoire naturelle des mollusques terrestres et fluviatiles de la France, Paris 1805 [posthumous], p.40 num.15.