Shell conical depressed, solid, whitish, with an irregular pronounced keel at the periphery. Protoconch of about 1,75smooth whorls, about 352 µm diameter. Teleoconch of about 1,5 whorls, increasing not rapidly; dorsally slightly convex with about 70 regular, curved, prosocline ribs, wider than then interspaces; ventrally, slightly convex, also with the same ribs and a depressed part near the periphery. Umbilicus wide, showing the previous whorls. Aperture near rectangular, columella vertical, outer lip sharp and extended dorsally Dimensions: The holotype is 1.5 mm maximum dimension (diameter). The specific name is dedicated to the brothers Agustin and Anton Ferreira Lorenzo, from A Guarda, Pontevedra, for their excellent work with the Asociacion Naturalista do Baixo Mino, ANABAM, in the protection of the wildlife of this area.

This species is more solid than other congeners in West Africa. D. irregularis, D. similis and D. nodulosus have a similar profile, but they are more fragile, the peripheral keels are thinner and more irregular. Also, D. ferreirorum has no basal spiral cord, present in the other species. D. jullieni is more conical and the axial sculpture is wider and orthocline.

Distribution: Known only from Ghana. Type locality: Miamia, Ghana, 38 m.