Shell small, 4.5-13 mm., of light build, elongate-biconic, with a tall spire and a long relatively narrow angulated body-whorl, tapered to a short but widely open unnotched anterior canal. Protoconch of 2-2,5 regularly increasing whorls, the last reticulated by protractive axial riblets crossed by three or four spiral threads. Adult sculpture of regular prominent but rather narrow axials, somewhat thickened at the peripheral angle, overridden by dense spiral lirae. Aperture ovate-quadrate; outer lip thin edged. Sinus a broadly open V, its apex a little above the peripheral angle. Inner lip plain, without processes. Colour white or buff. Radula-of the hilted-dagger type, a pair of moderately long simple pointed marginals, each with a prominent basal spur.

Range — Recent, North Carolina to Florida and California, Pliocene and Miocene of Florida and Venezuela. The genus has been recorded also from the Pliocene of Japan.