Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1675210
| MA | Hampden | Connecticut River, Holyoke, MA, US | 2020 |
01080201
| Ashuelot River-Connecticut River | |
1673573
| MA | Hampden | Connecticut River, Holyoke, MA, US | 2020 |
01080201
| Ashuelot River-Connecticut River | |
1674512
| MA | Middlesex | Great Meadows National Wildlife Refuge, Concord, MA, US | 2020 |
01070005
| Concord River | |
1675179
| MA | Middlesex | Great Meadows National Wildlife Refuge, Concord, MA, US | 2020 |
01070005
| Concord River | |
1673468
| MA | Middlesex | I-93 N, Medford, MA, US | 2020 |
01090001
| Charles | |
1675315
| MA | Middlesex | North Cambridge, Cambridge, MA, USA | 2020 |
01090001
| Charles | |
1678964
| MA | Suffolk | Fenway?Kenmore, Boston, MA, USA | 2020 |
01090001
| Charles | |