The shell of the luxurious scallop is large and larger, with a shell length exceeding 100mm. The shell is tough and round in shape. The shell length is slightly equal to the shell height, the two shells are equal, the left shell is slightly more convex than the right shell, and the sides of the shell are slightly equal. The dorsal edge of the shell is straight, and the ventral edge is circular. The top of the shell is located in the middle of the back edge, small and not convex, with shell ears in front and behind the top of the shell. The two ears are unequal, with the left anterior ear slightly larger and both ears forming triangles, with 7-8 thin ribs on the ribs; There is a significant difference between the front and back ears of the right shell; The front ear is large, nearly triangular, with about 4 thick ribs on the surface, and there are several small comb teeth in the foot silk holes below; Rear ear triangle with several thin ribs.

The external characteristics of the shell range from medium to large. The shell beak is located at the front end. Thin shell. The true bead layer did not extend to the end. Lack of twisted teeth. The scar on the anterior adductor muscle is small and located at the front end, while the scar on the posterior adductor muscle is large and located in the center. There are no water pipes. Attach the front foot fibers to the substrate and bury them in the substrate with the back edge facing upwards.