| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
239124
| TX | Brewster | a beaver pond in Big Bend National Park | 2006 |
13040205
| Big Bend | established |
|
1468523
| TX | Brewster | a beaver pond in Big Bend National Park | 2017 |
13040205
| Big Bend | established |
|
1468524
| TX | Brewster | a beaver pond in Big Bend National Park | 2017 |
13040205
| Big Bend | established |
|
915
| TX | Cameron | 3 miles south of Harlingen | 1950 |
12110208
| South Laguna Madre | established |
|
914
| TX | Cameron | Brownsville | 1950 |
12110208
| South Laguna Madre | established |
|
913
| TX | Cameron | resacas (lakes) between Brownsville and San Benito | 1930 |
12110208
| South Laguna Madre | established |
|
916
| TX | Cameron | Rio Grande River valley | 1977 |
12110208
| South Laguna Madre | established |