Shell forming an elongated cone with nearly flat sides. The protoconch is intorted. The teleoconch whorls are only slightly convex and separated from one another by clear but shallow sutural grooves. They increase in size very regularly and number 5.5 in the holotype. The surface of the shell is white and glossy as far as can be seen. The only sculpture are the inverted s- shaped growthlines which are opisthocline, as in other Ondina species. The mouth occupies between 0.42 an 0.45 of the total height, whereas the last whorl forms about 0.60 of the total height. The columella has a low but prominent columellar fold. There is a relatively small umbilical chink. Length 4.0 mm, breadth 1.80 mm (holotype from St. Jacut, Brittany).
Lenght 3.3 mm, breadth 1.40 mm (paratype from St. Jacut, Brittany, coll. AD9599a).