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, A detailed illustration of a flounder, showcasing its flattened body and unique features. The dorsal side exhibits a mottled pattern with shades of brown, while the ventral side remains paler. The fish has both eyes on one side of its body, which is characteristic of flatfish. Delicate scales are visible across its surface, and the illustration includes labeled scientific names to identify the species. Its mouth is open slightly, giving a sense of liveliness to the depiction. Overall, the artwork reflects a blend of naturalism and scientific observation, typical of 18th-century marine biology illustrations.