| Pseudomalaxis zanclaeus (Philippi, 1844) |
| Pseudomalaxis zancleus (Philippi, 1844) |
| Pseudotorinia Sacco, 1892 |
| Pseudotorinia architae (O. G. Costa, 1841) |
| Psilaxis Woodring, 1928 |
| Psilaxis krebsii (Mörch, 1875) |
| Solatisonax Iredale, 1931 |
| Solatisonax sigsbeei (Dall, 1889) |
| Spirolaxis Monterosato, 1913 |
| Spirolaxis centrifuga (Monterosato, 1890) |
| Spirolaxis lamellifer (Rehder, 1935) |
| Teretropoma Rochebrune, 1881 |
| Teretropoma perrieri Rochebrune, 1881 |