Shell thin, with rounded whorls and a sharp-pointed spire; the surface everywhere covered with fine, revolving, engraved lines, which are sometimes so .near together that the ridges between them appear as close revolving threads; surface generally slightly decussated by the growth lines; aperture nearly evenly oval; outer lip thin; columella often a little excavated below. The color pattern varies greatly; the ground may be gray, yellowish, reddish, or purplish, and is generally marked with darker, oblique strigations, which are often only faintly defined; columella usually tinted with violet.
Length, 30; diameter, 17 mm.
Ponce, Porto Rico; Ensenada Honda, Culebra; a small, slender, light-colored variety was obtained at San Juan, Porto Rico; West Indies; Florida.