| sigmodon ochrognathus | | USA: Texas, Presidio Co., Big Bend Ranch State Natural Area | | 1237941570 |
| sigmodon ochrognathus | | USA: Mount Livermore Preserve, Brewster County, Texas | | 8885868 |
| sigmodon ochrognathus | | USA: Elephant Mountain Wildlife Management Area, Brewster County, Texas | | 8885864 |
| sigmodon ochrognathus | | USA: Big Bend Ranch State Park, Presidio County, Texas | | 8885862 |
| sigmodon ochrognathus | | USA: Texas, Presidio Co., Big Bend Ranch State Natural Area | | 1237941048 |
| sigmodon ochrognathus | | USA: Texas, Presidio Co., Big Bend Ranch State Natural Area | | 1237940764 |
| sigmodon ochrognathus | | USA: Texas, Presidio Co., Big Bend Ranch State Natural Area | | 1237940542 |