The illustration features two distinct species of mammals native to the Iberian Peninsula. At the top, the Crocidura cantabrica, known as the Cantabrian shrew, is depicted in a natural setting with intricate details highlighting its fur texture and the surrounding greenery. The bottom illustration showcases the Neomys anomalus, commonly referred to as the European water shrew, illustrated near water which emphasizes its semi-aquatic lifestyle. Each creature is portrayed with careful attention to anatomical accuracy and environmental context, providing insight into their habitats and physical characteristics.