Freshwater pearl mussel
- kingdom: Animalia
- phylum: Mollusca
- class: Bivalvia
- order: Unionida
- family: Margaritiferidae
- genus: Margaritifera
- species: Margaritifera margaritifera
- Grafenegg
Lower Austria- Atzesberg
- Goldwörth
- Schärding
- Zwettl an der Rodl
Upper Austria
Austria- Hauzenberg
Bavaria- Affler
- Bauler
- Dasburg
- Dauwelshausen
- Gemünd
- Keppeshausen
- Preischeid
- Rodershausen
- Waldhof-Falkenstein
Rheinland-Pfalz- Oelsnitz
Saxony
Germany- Bodafors
- Mariannelund
- Vetlanda
Jönköping- Bromölla
- Munka-Ljungby
- Näsum
- Tormestorp
Skåne- Billingsfors
- Horred
- Ljungskile
- Rävlanda
- Sandared
- Skepplanda
- Viskafors
Västra Götaland
Sweden- Grantown on Spey
Scotland
United Kingdom- Greenfield
Massachusetts- Constantia
New York
United States