Arctic fingernailclam
- kingdom: Animalia
- phylum: Mollusca
- class: Bivalvia
- order: Venerida
- family: Sphaeriidae
- genus: Sphaerium
- species: Sphaerium nitidum
Mansfield- Mansfield Center
- Pocasset
- Taunton
Massachusetts- Hampton Falls
New Hampshire
United States