Distinct from H. zephyrina by its broader, conical, subangulate form, and the some¬what more prominent basal tubercle of the columella, by which the adjoining part of the lower edge of the aperture appears slightly notched. The typical specimens collected by Deppe are unicolorous, somewhat worn; fresh ones from Yalalag are pale rose-colour, with white, more or less reticulated, lines and two rows of some¬what darker spots, one below the suture, and one above the angle of the last whorl.