Boston journal of natural history Boston Boston Society of Natural History, The illustration showcases various stages and forms of a specific snail species, identified as 'Helix pomatia.' This educational depiction includes labeled figures, demonstrating the distinct shapes and features of the snail, including a detailed view that highlights the shell's spiral structure. Each numbered section provides a closer examination of the organism's morphology, emphasizing its biological characteristics for study. The layout is clear and methodical, intended for scientific reference to enhance the understanding of this gastropod's anatomy.