Proceedings of the Zoological Society of London, London, Academic Press, periodicals, zoology, The illustration showcases two distinct views of a turtle, highlighting its intricate shell patterns. The upper view presents an overhead perspective, emphasizing the detailed texture and arrangement of the carapace. The lower view offers a profile perspective, displaying the shape of the turtle's head and the smoothness of its plastron. Below the images, the scientific name 'Rhinoclemmys s. mexicana' is inscribed, indicating the species classification, while the accompanying text references the work of the modern researchers involved in its study.