| Polygyra richardsoni f. paucicostata Dall, 1926 |
| Polygyra richardsoni var. lingualis Pilsbry, 1899 |
| Polygyra scintilla Pilsbry & Hubricht, 1956 |
| Polygyra sterni Metcalf & Riskind, 1978 |
| Polygyra suprazonata Pilsbry, 1899 |
| Polygyra texasensis Pilsbry, 1902 |
| Polygyra texasiana (Moricand, 1833) |
| Polygyra texasiana subsp. hyerolia Pilsbry & Ferriss, 1906 |
| Polygyra texasiana subsp. texasensis Pilsbry, 1902 |
| Polygyra texasiana subsp. tillandsiae Cockerell, 1917 |
| Polygyra ventrosula (Pfeiffer, 1845) |
| Polygyra ventrosula var. hindsi (Pfeiffer, 1845) |
| Polygyra yucatanea (Morelet, 1849) |
| Polygyridae Pilsbry, 1895 |
| Polygyrinae Pilsbry, 1895 |
| Praticolella Von Martens, 1892 |
| Praticolella (Eduardus) Pilsbry, 1930 |
| Praticolella (Eduardus) martensiana (Pilsbry, 1907) |
| Praticolella (Praticolella) Von Martens, 1892 |
| Praticolella (Praticolella) ampla (Pfeiffer, 1866) |