Les mollusques marins du Roussillon Paris J.-B. Baillière 1882-1898 France Mollusks Roussillon Province, A detailed illustration showcasing various species of marine mollusks, specifically bivalves, from the region of Roussillon. Each specimen is numbered and meticulously labeled, displaying different shapes, sizes, and forms of the shells. The illustration includes a variety of morphological variations, highlighting characteristics such as texture and contour. Some specimens exhibit distinct features, which may indicate their classification or habitat preferences. The scientific names accompany the images, contributing to a comprehensive reference for studying marine biodiversity within this category of mollusks.