| anas acuta | | USA: National Zoological Park, D.C. (captive) | | 294999394 |
| anas acuta | | USA: National Zoological Park, D.C. (captive) | | 294999454 |
| anas acuta | | USA: National Zoological Park, D.C. (captive) | | 294999544 |
| anas acuta | | USA: National Zoological Park, D.C. (captive) | | 294999662 |