| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
252649
| MA | | Atlantic Ocean at northern edge of Georges Bank, off Cape Cod | 2006 |
32504000
| Gulf of Maine/Bay of Fundy | established |
|
252634
| MA | Barnstable | Cape Cod Bay at Sandwich town beach | 2006 |
01090002
| Cape Cod | established |
|
252621
| MA | Barnstable | Stage Harbor in Chatham | 2006 |
01090002
| Cape Cod | established |
|
252632
| MA | Essex | Sandy Bay [Atlantic Ocean] in Rockport | 2006 |
01090001
| Charles | established |
|
252630
| MA | Suffolk | Boston Harbor [Massachusetts Bay, Atlantic Ocean] in Winthrop | 2006 |
01090001
| Charles | established |