Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
228502
| RI | | Rhode Island | 1933 |
01090000
| Massachusetts-Rhode Island Coastal | established |
230853
| RI | | Rhode Island | 1988 |
01090000
| Massachusetts-Rhode Island Coastal | established |
229484
| RI | | Rhode Island | 1997 |
01090000
| Massachusetts-Rhode Island Coastal | established |
877943
| RI | Bristol | Echo Lake | 2015 |
01090004
| Narragansett | established |
235140
| RI | Providence | Cranston city, Still River [Location approximate, hand plotted] | 1932 |
01090004
| Narragansett | collected |
235143
| RI | Providence | Miscoe Lake, Cumberland | 1947 |
01090003
| Blackstone | collected |
877944
| RI | Providence | Pascoag Reservoir [Echo Lake] | 2015 |
01090003
| Blackstone | established |