caption: The image shows a page from a book with a variety of different types of shells, including an invertebrate, on it. The page is filled with intricate drawings of the shells, each with its own unique shape and size. The shells are arranged in a circular pattern, with some overlapping each other, and the colors range from light to dark shades of blue and green. The text on the page is written in a bold font and is surrounded by a decorative border.