Cranopsis gigantea: Shell depressed, conical, base oval, apex curved. Front slope convex, posterior and lateral slopes concave, the apex shows about one volution at its right side, placed at nearly 2/3 th of total length. Sculpture consisting of close-set, radiating riblets, which are alternately stronger and are crossed by concentric ridges, which make the riblets crenulated, the weaker riblets come near to, but don't reach the summit. Slit-fasciole rather deep, long about 7 mm, crossed by thin lamellae, orifice about 4 mm, in length, perhaps largest above (or slightly broken) ending in a blunt point, at 7,75 mm, from the front margin. Interior white, with shallow, radiating grooves, corresponding to the exterior riblets, and making the thin margin crenulated; from the summit runs the septum, closing the upper part of the slit-fasciole, thickened at the sides of the fasciole and along the orifice, below this follows a rather strong, interior rib. Long 29 mm, lat. 22,5 mm, alt. 12,5 mm

Cranopsis gigantea: Allied to Puncturella aethiopica v. Martens (Die beschalten Gastropoden der deutschen Tiefsee-Exp. ) but much larger, more elongated, with (according to the figure) much finer sculpture, the apex more terminal; the slit is more regular and symmetrical, I think however this last character has not much value, as it may be individual, like v. MARTENS suggested.

Cranopsis gigantea: Type location: Indonesia. Maluku. Laut Banda.