The animal kingdom, arranged according to its organization, serving as a foundation for the natural history of animals, London, G. Henderson, 1834-1837, animals, zoology, classification, pictorial works, The illustration features two distinct fish species. The first, a rounded fish with a prominent dorsal fin and a soft body, is displayed in profile, showcasing its streamlined shape and distinctive fin structure. Below it, a flattened fish exhibits a more angular body, typical of species adapted to a benthic lifestyle. Accompanying both fish are detailed anatomical studies, including skeletal structures, which provide insight into their biological classification and characteristics. This educational representation highlights the diversity within aquatic life and serves as a reference for marine biology studies.