Trochita diegoana
- kingdom: Animalia
- phylum: Mollusca
- class: Gastropoda
- order: Littorinimorpha
- family: Calyptraeidae
- genus: Trochita
- species: Trochita diegoana
Mercer Island- Tukwila
Washington
United States
Trochita diegoana Mercer Island Tukwila