Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
157686
| TX | | Galveston Bay basin, near Houston | 1996 |
12040204
| West Galveston Bay | established |
1675970
| TX | Brazoria | [No locality description provided] | 2021 |
12040204
| West Galveston Bay | |
1676105
| TX | Brazoria | [No locality description provided] | 2021 |
12040204
| West Galveston Bay | |
1523823
| TX | Brazoria | 577–969 County Road 56, Alvin, TX, US | 2017 |
12040205
| Austin-Oyster | established |
157703
| TX | Brazoria | Bryan Lake, NE Texas | 1998 |
12040205
| Austin-Oyster | established |
609441
| TX | Chambers | Elm Bayou; 8 miles south of Stowell | 1953 |
12040202
| East Galveston Bay | established |
610173
| TX | Chambers | Small ditch 5 mi. NW Winnie. | 1957 |
12040202
| East Galveston Bay | established |
609442
| TX | Chambers | Unspecified roadside ditch; 9 miles south-southwest of Stowell | 1953 |
12040202
| East Galveston Bay | established |
1705874
| TX | Galveston | [No locality description provided] | 2022 |
12040204
| West Galveston Bay | |
242810
| TX | Galveston | Dickinson Bayou | 2000 |
12040204
| West Galveston Bay | established |
238622
| TX | Galveston | Dickinson Bayou | 2001 |
12040204
| West Galveston Bay | established |
1710618
| TX | Galveston | Galveston Bay, TX | 1959 |
12040202
| East Galveston Bay | |
157776
| TX | Harris | Nelson Park (on Nelson Reservoir?) | 1996 |
12040204
| West Galveston Bay | established |
610120
| TX | Jefferson | Gulf of America: Big Hill Oil Field | 1970 |
12040202
| East Galveston Bay | established |