« Shell small (W up to 1.9 mm), skeneimorph, transparent and glossy, fragile. Spire high, quite variable, with early whorls not flattened. Protoconch consisting of about 0.7-0.9 whorls, DP 220-235 µm, in most specimens 225 µm. Nucleus small, sunken, intorted, with wrinkled sculptural pattern. Rest of protoconch smooth and expands rapidly. Protoconch I - protoconch II border not clearly visible; protoconch-teleoconch border clear, without varix. Teleoconch consisting of up to 3 convex whorls. Suture quite deep. Base simple, rounded, smooth. Surface smooth except for faint growth lines. Umbilicus rather narrow, deep and simple. Aperture oval with adapical side gently angulated. Peristome complete, simple and sharp. Periostracum very thin, smooth and transparent. Operculum oval, corneous, yellowish and transparent, slightly concave, multispiral, with sub-central nucleus, consisting of about 4-5 regularly increasing whorls. » – Romani & al.: “Remarks on the Mediterranean marine Valvatoidea (Gastropoda: Heterobranchia)”, Bollettino Malacologico vol. 57, Milano 2021, p.171-172.