Domestic distribution stations and occurrence frequency are low, leading to high rarity. From the perspective of marine biodiversity conservation, it holds significant value and is also highly valuable as a food resource. Features: It inhabits sandy bottoms in the open sea, and its shell is oval and thick. The shell is yellowish, with distinct growth lines. It has uncertain, radial brown bands. The rostrum is considerably tilted forward. The rostrum is yellowish-white without radial lines. When mature, it darkens to blackish-brown, and the radial bands weaken. Fine growth lines densely cover the shell, forming several bundles into a single broad lunule, with the dark brown band slightly raised and the light brown band slightly sunken. The surface has a luster.