Common Sea Dollar

This scientific illustration presents a detailed study of the common sand dollar, Echinarchnius parma. The primary focus is the sand dollar's test, showcasing its characteristic petal-like pattern and textured surface. Accompanying the main illustration are smaller, precise depictions of the internal skeletal structures, including the calcium plates or "doves" and Aristotle’s lantern, the intricate jaw structure used for feeding. The soft, natural shading and meticulous labeling give the piece an elegant, vintage field guide aesthetic, perfect for nature enthusiasts and marine biology lovers.