Shell perforate, thin, fragile, covered with a delicate, horn-colored epidermis, which is pinched up throughout into broken, revolving line; whorls six, somewhat rounded; the apex punctately reticulated; aperture ovate, about three-sevenths of the length of the shell; outer lip thin, not expanded; columella reflexed over the umbilicus.
Height, 16; diameter, 7 mm.
Under rocks in pastures, Bayamon, Porto Rico; Caguas, under bricks in a garden.