- Acmaeodera exilis
- Psychotria exilis
- Neopodospongia exilis
- Cyperus exilis
- Astragalus exilis
- Impatiens exilis
- Carex exilis
- Salvia exilis
- Serindit
- Tipula (Eumicrotipula) exilis
- Spiranthes perexilis
- Cylindridia perexilis
- Campolaemus perexilis
- Samaretta perexilis
- Curculio sayi
- List of gastropods of Saint Helena
- List of Saint Helena, Ascension and Tristan da Cunha animals extinct in the Holocene
- Campolaemus
- IUCN Red List of extinct species
- Hemisurcula
