Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
166177
| VA | | Mattaponi (York) drainage | 1994 |
02080105
| Mattaponi | established |
612800
| VA | King William | Mattaponi River, King William County and King and Queen County. | 1998 |
02080105
| Mattaponi | established |
746826
| VA | Spotsylvania | Matta River at US 1 (Jessup or Colemans Mill), 1.1 air miles S of Thornburg, 13.0 air miles SSW center of Fredericksburg | 2010 |
02080105
| Mattaponi | established |