Jacobi Petiveri Opera, historiam naturalem spectantia, 1767, natural history, pictorial works, Pre-Linnean works, plants, shells, birds, spiders, insects, lizards, A collection of intricately designed seashells, showcasing a variety of shapes, sizes, and patterns. Each shell features unique textures, from smooth curves to detailed ridges and spirals, highlighting the diversity of marine life. The arrangement includes notable examples such as clams, mussels, and other bivalves, each numbered for reference. The detailed illustrations capture the elegance of these natural forms, emphasizing their aesthetic and biological significance.