As Discopsis africana Bartsch
Shell small, discoid, bluish white. Nuclear whorls two, well rounded, smooth, forming a depressed helicoid spire with strongly impressed sutures. Postnuclear whorls one and one-fifth, expanding rapidly in size, marked with a strong, lamellar, wavy, peripheral keel, which has a ruffle-like appearance. The space between the summit and this keel is marked with spiral cords, of which 17 are apparent on the outside of the outer lip. Of these, the fourth below the summit forms a strong shoulder, the fourth, sixth, ninth, eleventh, thirteenth, and fifteenth being stronger than the rest, while the remainder are of about equal strength. The space between the one at the summit and the fourth is somewhat flattened, while that of the rest is evenly rounded. Base openly umbilicated; umbilicus occupying about one-third of the width of the base; bounded by a very slender spiral cord. The space from the base of the ruffle to this cord is evenly well rounded. The entire surface of the base is marked by rather strong lines of growth and microscopic spiral striations. This sculpture extends also into the umbilicus. Aperture very oblique, irregularly triangular; posterior angle acute; outer lip rendered denticulated by the external sculpture; inner lip slender, strongly sigmoid, and slightly reflected.
The type, Cat. No. 250561, U.S.N.M., comes from Port Alfred (Coll. No. 1434). Its greatest diameter is 2.3 mm.