Figure 2 from: Vinarski M (2015) Conceptual shifts in animal systematics as reflected in the taxonomic history of a common aquatic snail species (Lymnaea stagnalis). Zoosystematics and Evolution 91(2): 91-103. https://doi.org/10.3897/zse.91.4509

Figure 2 - Evolution of accuracy in illustrations of Lymnaea stagnalis shell through two centuries. Sources of images: A. Aldrovandi 1606. B. Lister 1678. C. Bonanni 1681. D. Klein 1753. E. Seba 1758. F. Schröter 1779.