| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
237714
| LA | | Gulf of America, Louisiana, 48 km south of Fourchon, on 13 oil and gas platforms (within a 65 km2 area) | 1997 |
32004300
| Northern Gulf of America | established |
|
237715
| LA | | Gulf of America, Louisiana, 48 km south of Fourchon, on 13 oil and gas platforms (within a 65 km2 area) | 1999 |
32004300
| Northern Gulf of America | established |
|
237674
| LA | | Gulf of America, Louisiana, on oil and gas platforms | 1995 |
32004300
| Northern Gulf of America | established |
|
1634175
| LA | | Gulf of America, Louisiana, ship shoal area block 189.25 mi south of Cocodrie | 1995 |
32004300
| Northern Gulf of America | established |