| Cylindrella tryoni Pfeiffer, 1867 |
| Cylindrella turris Pfeiffer, 1856 |
| Haplocion Pilsbry, 1902 |
| Haplocion bartschi Pilsbry & Clapp, 1909 |
| Haplocion campoi Bartsch, 1943 |
| Haplocion coahuilensis (W. G. Binney, 1865) |
| Haplocion durangoensis Bartsch, 1906 |
| Haplocion fusca (Von Martens, 1897) |
| Haplocion greggi (Drake, 1951) |
| Haplocion guaymasensis Bartsch, 1943 |
| Haplocion hamiltoni (Dall, 1897) |
| Haplocion mariae Bartsch, 1942 |
| Haplocion mathewsoni Bartsch, 1942 |
| Haplocion minima Bartsch, 1943 |
| Haplocion pasonis (Dall, 1895) |
| Haplocion remondi (Gabb, 1865) |
| Haplocion semisculpta (Stearns, 1890) |
| Haplocion townsendi (Bartsch, 1906) |
| Haplocion wilmoti Bartsch, 1947 |
| Haplocion yucatanenisis (Bartsch, 1906) |