Specimen ID | Common Name | State | County | Locality | Year |
| Drainage name | Status |
115601
| Red-eared Slider | MD | | northern Maryland | 1991 |
| Mid-Atlantic | established |
266369
| Pond Slider | MD | Baltimore | Gunpowder River, at Belair Rd. | 1957 |
02060003
| Gunpowder-Patapsco | established |
266351
| Pond Slider | MD | Baltimore | Lake Roland | 1959 |
02060003
| Gunpowder-Patapsco | established |
266358
| Pond Slider | MD | Baltimore | Loch Raven Reservoir | 1959 |
02060003
| Gunpowder-Patapsco | established |
266388
| Pond Slider | MD | Baltimore | McMahon Quarry, northwest Baltimore City | 1959 |
02060003
| Gunpowder-Patapsco | established |
266385
| Pond Slider | MD | Baltimore | Patapsco State Park, the lake at Glenartney | 1959 |
02060003
| Gunpowder-Patapsco | established |
266356
| Pond Slider | MD | Baltimore | Prettyboy Dam | 1959 |
02060003
| Gunpowder-Patapsco | established |
266373
| Pond Slider | MD | Baltimore City | Cherry Hill, Baltimore City | 1959 |
02060003
| Gunpowder-Patapsco | established |
1668944
| Pond Slider | MD | Prince George's | Beltsville Research Center, Soil Conservation Service Pond | 1950 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
156096
| Red-eared Slider | MD | Prince George's | northern and central Maryland as far south as Prince George's County | 1998 |
02060006
| Patuxent | unknown |
1668609
| Pond Slider | MD | Prince George's | Patuxent Wildlife Research Center, Hance Pond I | 1989 |
02060006
| Patuxent | unknown |
1669029
| Pond Slider | MD | Prince George's | Patuxent Wildlife Research Center, Knowles Pond I | 1991 |
02060006
| Patuxent | unknown |
1668628
| Pond Slider | MD | Prince George's | Patuxent Wildlife Research Center, Snowden Pond dam | 1976 |
02060006
| Patuxent | unknown |