Le règne animal distribué d'après son organisation Paris, 1836-1849 anatomy comparative animals classification identification nomenclature zoology museum of comparative zoology, The illustration features three distinct fish species arranged vertically, showcasing their anatomical details. Each fish is labeled with its scientific name and description. The top fish has a streamlined body with prominent fins, characterized by a slightly elongated shape. The middle species displays a more robust form, with noticeable scale patterns and a broader head. The bottom fish is smaller and features a unique fin arrangement, emphasizing its adaptability. The detailed depiction highlights features such as fins, tails, and body shapes, contributing to an understanding of aquatic diversity.