Argopecten scallops from Arashiyama

Argopecten scallops from Arashiyama

　　Argopecten scallops are named for their carapace, which is shaped like a shuttle. The width is nearly twice the length, and the surface of the carapace is covered with fine granules. There are two transverse ridges of granules, and three wart-like protrusions in the center of the carapace, hence they are also called "three-spined swimming crabs." The frontal area has two sharp teeth; the front lateral edge has nine sharp teeth, with the last tooth being long and spine-like, protruding outward. The claws are robust, longer than the width of the carapace; the merus is columnar, with the male merus being more slender and having four sharp spines on the front edge. The male has a pointed and smooth umbilicus, with large claws and a bluish shell surface. The female has a round umbilicus with fuzz, and the shell surface is ochre or may have spots. The carapace is mostly tea-green in color; the back of the claws and the walking legs are bright blue with white spots; the tips of the walking legs and claw fingers are red. Their weight generally ranges between 250–300 grams, with heavier ones exceeding 500 grams. The Argopecten scallops abundant in the waters of Arashiyama are known for their plump, tender meat with a delicious taste. They are rich in various vitamins, amino acids, and have a very high protein content, offering high nutritional and economic value. They are an ideal tonic food.