Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1468725
| MA | Middlesex | [Concord River at confluence with Assabet River] | 2018 |
01070005
| Concord River | established |
235161
| MA | Middlesex | Assabet River, Concord | 1971 |
01070005
| Concord River | collected |
235159
| MA | Middlesex | Concord River ~0.5 mi W of Rt. 225 Concord, north side of river | 1971 |
01070005
| Concord River | collected |
235150
| MA | Middlesex | eastern coves of Boons Pond,Stow | 1966 |
01070005
| Concord River | collected |
235151
| MA | Middlesex | eastern coves of Boons Pond,Stow | 1967 |
01070005
| Concord River | collected |
1660176
| MA | Middlesex | Fairhaven Bay | 1968 |
01070005
| Concord River | unknown |
235165
| MA | Middlesex | Lake Whitehall (Reservoir), Hopkinton town | 1974 |
01070005
| Concord River | collected |
235157
| MA | Middlesex | North Pond, Hopkinton | 1971 |
01070005
| Concord River | collected |
235152
| MA | Middlesex | Sudbury River at Fairhaven Bay, Concord | 1968 |
01070005
| Concord River | collected |
235160
| MA | Middlesex | Sudbury River near Central St. and the Mass. Pike, Framingham | 1971 |
01070005
| Concord River | collected |
1321174
| MA | Middlesex | Sudbury River, between Wickford Rd bridge and Central St | 2015 |
01070005
| Concord River | established |
235153
| MA | Middlesex | Sudbury River, Framingham | 1968 |
01070005
| Concord River | collected |
235154
| MA | Middlesex | Sudbury River,Wayland | 1968 |
01070005
| Concord River | collected |