grooved fingernailclam
- kingdom: Animalia
- phylum: Mollusca
- class: Bivalvia
- order: Venerida
- family: Sphaeriidae
- genus: Sphaerium
- species: Sphaerium simile
Elizabethtown- Moline
Illinois- Bettendorf
Iowa- Norway
- Presque Isle
Maine- Westfield
Massachusetts- Albion
Michigan- Corinth
Mississippi- Hampton Falls
New Hampshire- Elmsford
- Greenburgh
New York- North York
- Pitcairn
- Trafford
- Valley View
- York
Pennsylvania- Washington, D. C.
Washington, D.C.- Lusk
Wyoming
United States