Shell morphology: (8) Protoconch in dorsal view, scale bar = 4mm; (9) lateral view of the protoconch and first whorls, scale bar = 4mm; (10) general view of the teleoconch microsculpture, scale bar = 100μ; (11) body whorl microsculpture consisting on axial rows of triangular lamella separated by wrinkles; (12) perpendicular view of the lamella, scale bar = 5μ; (13) detail of a triangular lamellae showing its central axis, scale bar = 2 μm.