Professor Qiu said, "Identifying the Placuna species poses distinct challenges due to the variability in shell size, shape, and even the color of the inner surface, which can exhibit a wide range ...

The shellfish species, also known as Stimpson’s hard clam or quahog, is renowned for its longevity and inhabits waters not only off Tohoku and farther north in Japan but also Russia.

Professor Qiu said, "Identifying the Placuna species poses distinct challenges due to the variability in shell size, shape, and even the color of the inner surface, which can exhibit a wide range of ...

neck and foot structure extending from the shell, with “golden spots on (the) tentacles,” according to the study. Researchers used DNA to confirm the animal as a new species. Gastropods are a ...

Researchers used DNA to confirm the animal as a new species. The animals are protected by a smooth and thin shell, researchers said. Xu Y-B, Meng Y-Z, Zeng S, Wang H-J, Zhong S, Yang D-Y ...