Dictionnaire des sciences naturelles, Strasbourg, Paris, F. G. Levrault, Le Normant, 1816-1830., The depiction shows a detailed illustration of a snake, specifically the species Erpétón tentaculatum. The snake is elongated and coiled, with its head raised slightly, displaying distinct features such as its forked tongue and textured scales. The illustration includes a label identifying the species, along with the scientific classification under the heading 'Zoologie: Hétérodermes.' The intricate lines and shading highlight the snakes anatomy and features, providing a glimpse into its natural form and characteristics.