| esox niger | | usa: maryland, caroline county, choptank river, gravelly branch, upstream site | | 1842677929 |
| esox niger | | usa: maryland, anne arundel county, rhode river, whitemarsh creek | | 1842677817 |
| esox niger | | usa: maryland, caroline county, choptank river, gravelly branch, upstream site | | 1842676764 |
| esox niger | | usa: maryland, caroline county, choptank river, gravelly branch, upstream site | | 1842676449 |
| esox niger | | usa: maryland, anne arundel county, rhode river, fox point | | 1842676407 |
| esox niger | | usa: maryland, prince george's county, patuxent river, wayson's corner | | 1842676353 |
| esox niger | | usa: maryland, anne arundel county, rhode river, serc education seining beach | | 1842676345 |