| china | | margaritifera dahurica | species | 1 | 0 |
| france | | margaritifera auricularia | species | 37 | 0 |
| france | auvergne region | margaritifera margaritifera | species | 2 | 0 |
| germany | bavaria | margaritifera margaritifera | species | 10 | 0 |
| ireland | | margaritifera margaritifera | species | 3 | 0 |
| ireland | leinster province | margaritifera margaritifera | species | 74 | 0 |
| ireland | leinster province | margaritifera margaritifera durrovensis | subspecies | 21 | 0 |
| japan | | margaritifera laevis | species | 4 | 0 |
| japan | | margaritifera middendorffi | species | 2 | 0 |
| japan | gifu prefecture | margaritifera laevis | species | 7 | 0 |
| japan | hokkaido prefecture | margaritifera laevis | species | 4 | 0 |
| japan | hokkaido prefecture | margaritifera togakushiensis | species | 1 | 0 |
| japan | ishikawa prefecture | margaritifera laevis | species | 13 | 0 |
| japan | iwate prefecture | margaritifera laevis | species | 2 | 0 |
| japan | nagano prefecture | margaritifera togakushiensis | species | 6 | 0 |
| laos | luang prabang province | margaritifera laosensis | species | 12 | 0 |
| morocco | | margaritifera marocana | species | 22 | 0 |
| russia | | margaritifera dahurica | species | 2 | 0 |
| russia | | margaritifera middendorffi | species | 1 | 0 |
| russia | karelia republic | margaritifera margaritifera | species | 3 | 0 |
| russia | murmansk oblast | margaritifera margaritifera | species | 71 | 0 |
| russia | primorsky krai | margaritifera dahurica | species | 8 | 0 |
| spain | aragon | margaritifera auricularia | species | 18 | 0 |
| spain | asturias | margaritifera margaritifera | species | 14 | 0 |
| spain | castile and leon | margaritifera margaritifera | species | 4 | 0 |
| spain | galicia | margaritifera margaritifera | species | 586 | 0 |
| turkey | | margaritifera homsensis | species | 4 | 0 |
| united states | | cumberlandia monodonta | species | 8 | 0 |
| united states | alabama | margaritifera marrianae | species | 5 | 0 |
| united states | california | margaritifera falcata | species | 15 | 0 |
| united states | idaho | margaritifera falcata | species | 4 | 0 |
| united states | louisiana | margaritifera hembeli | species | 13 | 0 |
| united states | maine | margaritifera margaritifera | species | 15 | 0 |
| united states | montana | margaritifera falcata | species | 1 | 0 |
| united states | oregon | margaritifera falcata | species | 8 | 0 |
| united states | pennsylvania | margaritifera margaritifera | species | 10 | 0 |
| united states | tennessee | cumberlandia monodonta | species | 5 | 0 |
| united states | washington | margaritifera falcata | species | 8 | 0 |