Description: Shell ovoid, dorsally depressed, nearly planispiral, very fragile, whitish. Protoconch of 1,75 smooth whorls, about 434 µm diameter. The beginning of the teleoconch is marked by increasing of the width of the whorl. The teleoconch has 1-2 whorls, increasing rapidly, a flat dorsal part, elevated a little above the level of the protoconch which appears a little depressed In the first whorl of the teleoconch there is a peripheral keel with some pointed extensions. In the last whorl, the peripheral keel is attenuated then becoming rounded, and the peripheral extensions disappear. On the entire surface of the shell numerous curved and prosocline growth lines are present. The aperture is large, obliquely rounded and with a dorsal extension adherent to the previous whorl. Columella curved and nearly vertical. Aperture border simple and sharp. Umbilicus very wide, making the previous whorls visible. Dimensions: The holotype is 6.2 mm in maximum dimension (diameter). The paratype reaches only 1.4 mm, being a little juvenile.

Distribution: Known only from the type material, from Ivory Coast and Ghana. Type locality: Region of Abidjan, dredged in the continental plateau, Ivory Coast. Etymology: The specific name alludes the extreme rarity of this species.