W
- Weberogobius amadi — Poso bungu
- Werneria bambutensis
- Werneria iboundji
- Werneria mertensiana
- Werneria preussi
- Werneria submontana
- Werneria tandyi
- Wild whitnebeast
- Wolterstorffina chirioi
- Wolterstorffina mirei'
Read more about this topic: IUCN Red List Endangered Animal Species