Ichtyologie, ou, Histoire naturelle, générale et particulière des poissons, A Berlin, Chez l'auteur, & chez François de la Garde libraire, 1785-1797, fishes, Germany, ichthyology, pictorial works, Two intricate illustrations of fish are displayed side by side. The fish on the left features a rounded body with distinct fins and a subtle gradient of colors, showcasing detailed scale patterns. Its facial structure includes prominent features and a slightly open mouth. The fish on the right displays a more elongated form with prominent, larger scales, detailed fin patterns, and vivid markings, including a striking yellow eye. Each illustration is labeled with scientific nomenclature and notes, providing a clear educational reference to their characteristics and classifications.