Ten recognizable seashell forms: nautilus, cowrie, cone shell, murex, spider conch, turritella, abalone, scallop, mussel and cockle. This selection introduces coils, apertures, projections and valves; it is not an exhaustive classification, scientific identification guide or rarity ranking. All images are photorealistic reconstructions created with built-in OpenAI ImageGen for this project, not documentary photographs of museum specimens. These reconstructions do not establish exact species identities. Original assets and prompts are retained in project provenance. Commons photographs were checked but rejected or unavailable; none is used. No third-party photographs or music are used, and no Creative Commons or public-domain licenses are asserted for the visuals. The English script and captions were prepared for this project; voice is synthesized with Microsoft Edge TTS.