Shell globose, relatively solid, whitish and sculptured. Protoconch of about 1-Vi whorls, smooth, and of about 413 µm diameter. Teleoconch of about 2 whorls, increasing slowly; at the beginning, there are 2 spiral cords, crossed by axial prosocline ribs, narrower than the interspaces; these ribs number about 20 in the first whorl and about 25 in the last one. On this last whorl, those 2 spiral cords on the subsutural area continue, one of them close to the suture; below, there is a space with only axial sculpture; at the level of the end of the spire, two more smaller cords appear, and 2 additional are near the umbilicus which is elongate, narrow and curved. Aperture rounded, columella semicircular, peristome simple. With magnification it is possible to see that there are numerous spiral threads formed by very small tubercles, which are more numerous and closer on the two cords of the periphery
Dimensions: Holotype is 3.0 mm in height and 2.6 mm in diameter.

This species is the most globose in West Africa, and the comparison with the other species included in the genus is as follows:
P. skeneoides is globose but smooth.
P minutissima is globose, apparently smooth, lacking axial sculpture, and with only microscopic spiral sculpture, except for the spiral cord near the umbilicus.
P. finalis has a wider umbilicus and its axial sculpture is reduced to the subsutural area.

Distribution: Know from Ivory Coast to Angola. Type locality: Abidjan, Centre de Recherches Oceanographiques, Ivory Coast.