Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
34995
| MA | Berkshire | Benton Lake, Otis | 1996 |
01080207
| Farmington River | failed |
35035
| MA | Berkshire | Big Benton Lake, Otis | 1991 |
01080207
| Farmington River | failed |
35012
| MA | Middlesex | Charles River Boston/Cambridge, just up river of the Newell Boat House | 1991 |
01090001
| Charles | established |
34928
| MA | Middlesex-Suffolk | Charles River, Cambridge/Boston | 1991 |
01090001
| Charles | established |
34974
| MA | Norfolk-Suffolk | Charles River, Boston/Cambridge at Newall Boat House | 1991 |
01090001
| Charles | established |
34975
| MA | Norfolk-Suffolk | Charles River, Boston/Cambridge at Newall Boat House | 1991 |
01090001
| Charles | established |