| Oryzomys palustris subsp. regillus Goldman, 1915 |
| Oryzomys palustris subsp. texensis J. A. Allen, 1894 |
| Oryzomys palustris subsp. zygomaticus Merriam, 1901 |
| Oryzomys peninsulae Thomas, 1897 |
| Oryzomys rhabdops Merriam, 1901 |
| Oryzomys rhabdops subsp. angusticeps Merriam, 1901 |
| Oryzomys rostratus Merriam, 1901 |
| Oryzomys rostratus subsp. carrorum Lawrence, 1947 |
| Oryzomys rostratus subsp. megadon Merriam, 1901 |
| Oryzomys rostratus subsp. rostratus Merriam, 1901 |
| Oryzomys rostratus subsp. yucatanensis Merriam, 1901 |
| Oryzomys rufus Merriam, 1901 |
| Oryzomys saturatior Merriam, 1901 |
| Oryzomys saturatior subsp. hylocetes Merriam, 1901 |
| Oryzomys saturatior subsp. saturatior Merriam, 1901 |
| Oryzomys teapensis Merriam, 1901 |
| Oryzomys texensis J. A. Allen, 1894 |
| Oryzomys yucatanensis Merriam, 1901 |
| Oryzomys zygomaticus Merriam, 1901 |
| Osgoodomys Hooper & Musser, 1964 |