Eagle Island, Amirantes, 12fms. ; Mauritius (Martens).
Of this little species I have several examples before me in adult condition. In these I count five normal whorls and three nuclear, the former being nearly straight at the sides and the latter convex. The labrum is but very little thickened, has a shallow sinuation above and a few denticles within. The columella is subperpendicular, covered with a thin callus, having a prominent free margin.