Bilaterally symmetrical shell, basal outline eggshaped, the greatest width behind the middle, height/length ratio 0.36-0.37; apex strongly curved, at about 0.74 from the anterior side; both posterior and anterior side slightly convex. The shell is slightly bent and the basal plane is therefore curved. Anal slit relatively short, only 0.14-0.15 of the total length. Lunulae on the slit-band dorsally directed.
The sculpture consists of about 25-27 primary radial ribs with one weaker rib between each pair of stronger ones and concentric ridges, rather widely spaced, forming a relatively open network. Inner margin crenulate.
Holotype: Length: 9.0 mm, in Nationaal Natuurhistorisch Museum Leiden, Netherlands.
Paratype 1: Length 9.0 mm, in collection Van Aartsen
Paratype 2: Length 10.0 mm, in collection Carrozza.
Der. Nom.: Named after the second author's wife.