Caption:
The Danish Ingolf-Expedition, Copenhagen, H. Hagerup, 1899-1928, Arctic Ocean, scientific expeditions, A collection of detailed illustrations showcasing various types of shells, each labeled with corresponding numbers for identification. The arrangement displays a diverse array of shell shapes and patterns, highlighting the unique characteristics of each specimen. The illustration includes close-ups that emphasize texture and form, allowing for a deeper appreciation of marine life. The well-organized layout is indicative of a scientific study, providing insights into the taxonomy and morphology of mollusks.