Testa turbinata, imperforata, alba, lineis gracilibus spiralibus roseis picta, sub tegmine cretaceo laevi spiraliter tenuiter sulcata; spira convexe conica, ad apicem obtusa; anfractus 5 celeriter accrescentes, parum convexi, ultimus ad peripheriam rotunde obsolete angulatus, antice vix descendens, infra suturam versus aperturam leviter concave impressus, infra medium subplanatus ; apertura obliqua, intus obsolete sulcata ; columella oblique arcuata, incrassata, reflexa, appressa, alba.
Diam. maj. 15, min. 14,5 mm.; alt. 15 mm.
Sab.—San Sebastian Beach.
This species is well characterized by its peculiar form and colour. The outer calcareous coating of the shell, in which are the colour-lines, is almost smooth externally, but the pearly layer beneath is rather strongly sulcate. This is very evident where the outer layer has been chipped off. The penultimate whorl has four rose-coloured spiral lines and the last nine, four of which are upon the lower surface.