Shell large and glossy, ovate in shape, easily identified by its special coloration. It has an inflated dorsum, and rostrate extremities. Sculpture consists of obsolete axial and spiral stria. Aperture curved and purple within, outer lip broad and strong ly ridged on its entire length. Columella calloused. Color uniformlu milky white. Animalhas a black mantle. Distribution: Vũng Tau,Khanh Hoa, Ninh Thuan, Quang Ngai, etc. Size:33-106 mm