Thesaurus conchyliorum, or Monographs of genera of shells, London, Sowerby, 18471887, mollusks, pictorial works, shells, A collection of various species of snails, displayed in a systematic arrangement. Each shell showcases unique patterns, colors, and shapes, highlighting the diversity within the family of marine gastropods. The shells range from small, intricately spiraled forms to larger, more flattened varieties, with some exhibiting distinctive color bands and intricate markings. The illustration emphasizes the beauty of these natural forms, as well as the scientific interest in their classification. Labels and numbering accompany each specimen, indicating their specific identification and categorization.