Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
241713
| SC | Georgetown | Atlantic Ocean, about 5 mi off mouth of the Santee River | 2007 |
03050112
| Santee | collected |
166723
| TX | Galveston | Galveston Bay in Eckerts Bayou | 2006 |
12040204
| West Galveston Bay | collected |
279131
| TX | Galveston | West Galveston Bay [Gulf of Mexico] | 2011 |
12040204
| West Galveston Bay | collected |
1407691
| TX | Galveston | West Galveston Bay, in Pirates Beach marina | 2017 |
12040204
| West Galveston Bay | unknown |
1713744
| TX | Kleberg | North Beach of Padre Island National Seashore | 2023 |
12110203
| North Laguna Madre | established |