| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Xenopus muelleri (Peters 1844) | 0 | 0 | 1 |
| Xenosaridae | 1 | 0 | 0 |
| Xenosaurus grandis (Gray 1856) | 0 | 0 | 1 |
| Philodryas georgeboulengeri Grazziotin, Zaher, Murphy, Scrocchi, Benavides, Zhang & Bonatto 2012 | 0 | 0 | 1 |
| Xiphocolaptes albicollis (Vieillot 1818) | 0 | 0 | 1 |
| Zapus hudsonius (Zimmermann 1780) | 0 | 0 | 1 |
| Zenaida asiatica (Linnaeus 1758) | 0 | 0 | 1 |
| Zonotrichia albicollis (Gmelin & JF 1789) | 0 | 0 | 1 |
| Zonotrichia leucophrys (Forster & JR 1772) | 0 | 0 | 1 |
| Zonotrichia querula (Nuttall 1840) | 0 | 0 | 1 |
| Zootoca vivipara (Lichtenstein 1823) | 0 | 0 | 1 |
| Zosteropidae | 2 | 0 | 0 |
| Zosterops abyssinicus Guérin-Méneville 1843 | 0 | 0 | 1 |
| Zosterops senegalensis Bonaparte 1850 | 0 | 0 | 1 |
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