"平貝" (Tairagai) is a type of bivalve mollusk characterized by its elongated, flat, and fan-shaped shell. The name "平貝" literally means "flat shellfish," derived from its distinctively flat appearance. It is commonly found in Japanese coastal waters and is a popular ingredient in Japanese cuisine. Tairagai is often prepared as sashimi, grilled, or steamed, offering a delicate texture and a slightly sweet, briny flavor. Compared to "ホタテの貝柱" (scallop adductor muscle), which is round, thick, and meaty, Tairagai has a thinner, more tender texture and a subtler taste. Its unique shape and flavor make it a favorite for seafood enthusiasts.