| Sciurus arizonensis subsp. huachuca J. A. Allen, 1894 |
| Sciurus aureogaster F. Cuvier, 1829 |
| Sciurus aureogaster subsp. aureogaster F. Cuvier, 1829 |
| Sciurus aureogaster subsp. frumentor E. W. Nelson, 1898 |
| Sciurus aureogaster subsp. hypopyrrhus Wagler, 1831 |
| Sciurus aureogaster subsp. leucops J. A. Allen, 1889 |
| Sciurus aureogaster subsp. nigrescens Bennett, 1833 |
| Sciurus aureogaster subsp. socialis Wagner, 1837 |
| Sciurus buccatus Lichtenstein, 1827 |
| Sciurus capistratus Lichtenstein, 1830 |
| Sciurus carolinensis Gmelin, 1788 |
| Sciurus carolinensis var. yucatanensis J. A. Allen, 1877 |
| Sciurus cervicalis J. A. Allen, 1890 |
| Sciurus chrysogaster Giebel, 1859 |
| Sciurus colliaei Richardson, 1839 |
| Sciurus colliaei subsp. colliaei Richardson, 1839 |
| Sciurus colliaei subsp. nuchalis E. W. Nelson, 1899 |
| Sciurus colliaei subsp. sinaloensis E. W. Nelson, 1899 |
| Sciurus colliaei subsp. truei E. W. Nelson, 1899 |
| Sciurus deppei Peters, 1863 |