Firoloida desmarestia (Reeve, 1851)
Length: 1 cm
Locality: Off Tassha, Sado Is.
Environment: surface
Date: Jul, 2025 Photographer: Akihito Omori
| Phylum | Mollusca |
| Class | Gastropoda |
| Subclass | Caenogastropoda |
| Order | Littorinimorpha |
| Family | Pterotracheidae |