rhomboid fingernailclam
- kingdom: Animalia
- phylum: Mollusca
- class: Bivalvia
- order: Venerida
- family: Sphaeriidae
- genus: Sphaerium
- species: Sphaerium rhomboideum
Danvers
Massachusetts- Indian River
Michigan- Seabrook
New Hampshire- Gillett
Wisconsin
United States