| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Zirfaea Gray 1842 | 1 | 0 | 0 |
| Zirfaea pilsbryi Lowe 1931 | 0 | 0 | 1 |
| Zonorhynchus | 2 | 0 | 0 |
| Zonorhynchus salinus Karling 1952 | 0 | 0 | 1 |
| Zonorhynchus seminascatus Karling 1956 | 0 | 0 | 1 |
| Zosime Boeck 1873 | 3 | 0 | 0 |
| Zosime major Sars G. O. 1919 | 0 | 0 | 1 |
| Zosime typica Boeck 1873 | 0 | 0 | 1 |
| Zosime valida Sars G. O. 1919 | 0 | 0 | 1 |
| Zygophylax Quelch 1885 | 1 | 0 | 0 |
| Zygophylax pinnata (G. O. Sars 1874) | 0 | 0 | 1 |
