| Sonorella seri Naranjo-García, 1988 |
| Sonorella sitiens Pilsbry & Ferriss, 1915 |
| Sonorella sitiens subsp. arida Pilsbry & Ferriss, 1915 |
| Sonorella torreonica Naranjo-García, 1989 |
| Sonorella tumamocensis Pilsbry & Ferriss, 1915 |
| Sonorella tumamocensis subsp. linearis Pilsbry & Ferriss, 1915 |
| Sonorella ultima Pilsbry, 1916 |
| Sonorella walkeri Pilsbry & Ferriss, 1915 |
| Sonorella walkeri subsp. aguacalientensis Pilsbry & Ferriss, 1923 |
| Sonorella walkeri subsp. montana Pilsbry & Ferriss, 1923 |
| Sonorella walkeri subsp. walkeri Pilsbry & Ferriss, 1915 |
| Sonorella walteri Naranjo-García, 1989 |
| Sonorellini Pilsbry, 1939 |
| Tryonigens Pilsbry, 1927 |
| Tryonigens remondi (Tryon, 1863) |
| Xanthonichinae Strebel & Pfeffer, 1879 |
| Xanthonychidae Strebel & Pfeffer, 1879 |
| Xanthonyx Crosse & Fischer, 1867 |
| Xanthonyx chiapensis (Pfeiffer, 1856) |
| Xanthonyx cordovanus (Pfeiffer, 1856) |