Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
154513
| RI | Washington | Atlantic Ocean, Block Island | 1996 |
01090005
| Pawcatuck-Wood | established |
154510
| RI | Washington | Watch Hill area, Block Island Sound | 1996 |
01090005
| Pawcatuck-Wood | established |
155488
| RI | Washington | Weekapaug Point, Block Island Sound | 1997 |
01090005
| Pawcatuck-Wood | established |