| Zalophus wollebaeki |
Species |
CARNIVORA | CANIFORMIA | Otariidae | Zalophus |
| Zapus hudsonius |
Species |
RODENTIA | MYOMORPHA | Dipodoidea | Dipodidae | Zapodinae | Zapus |
| Zapus princeps |
Species |
RODENTIA | MYOMORPHA | Dipodoidea | Dipodidae | Zapodinae | Zapus |
| Zapus trinotatus |
Species |
RODENTIA | MYOMORPHA | Dipodoidea | Dipodidae | Zapodinae | Zapus |
| Zelotomys hildegardeae |
Species |
RODENTIA | MYOMORPHA | Muroidea | Muridae | Murinae | Zelotomys |
| Zelotomys woosnami |
Species |
RODENTIA | MYOMORPHA | Muroidea | Muridae | Murinae | Zelotomys |
| Zenkerella insignis |
Species |
RODENTIA | ANOMALUROMORPHA | Anomaluridae | Zenkerellinae | Zenkerella |
| Ziphius cavirostris |
Species |
CETACEA | ODONTOCETI | Ziphiidae | Ziphius |
| Zygodontomys brevicauda |
Species |
RODENTIA | MYOMORPHA | Muroidea | Cricetidae | Sigmodontinae | Zygodontomys |
| Zygodontomys brunneus |
Species |
RODENTIA | MYOMORPHA | Muroidea | Cricetidae | Sigmodontinae | Zygodontomys |