ARKive's most wanted species listed alphabetically by scientific name
| Scientific name | Common name | Status |
|---|---|---|
| Aplonis pelzelni | Pohnpei starling | CR |
| Aplonis santovestris | Vanuatu Starling | VU |
| Apodemus gurkha | Himalayan Wood Mouse | EN |
| Aponogeton angustifolius | VU | |
| Aponogeton azureus | VU | |
| Aponogeton bogneri | EN | |
| Aponogeton bruggenii | VU | |
| Aponogeton ranunculiflorus | EN | |
| Aponogeton satarensis | EN | |
| Aporusa bourdillonii | EN | |
| Aporusa cardiosperma | VU | |
| Aporusa elliptifolia | VU | |
| Aporusa fusiformis | CR | |
| Aporusa lanceolata | VU | |
| Appalachia arcana | Michigan Bog Grasshopper | VU |
| Aproteles bulmerae | Bulmer's Fruit Bat | CR |
| Apterosperma oblata | VU | |
| Aptychotrema timorensis | Spotted shovelnose ray | VU |
| Apus acuticauda | Dark-rumped Swift | VU |
| Aquadulcaris pheronyx | CR | |
| Aquilaria banaensae | VU | |
| Ara atwoodi | Dominican Green-and-yellow Macaw | EX |
| Ara erythrocephala | Jamaican Green-and-yellow Macaw | EX |
| Ara gossei | Jamaican Red Macaw | EX |
| Ara guadeloupensis | Lesser Antillean Macaw | EX |
| Arachniodes squamulosa | EN | |
| Arachnothelphusa melanippe | VU | |
| Aralia debilis | VU | |
| Aralia javanica | VU | |
| Aralia malabarica | VU | |
| Aralia tibetana | VU | |
| Aramides wolfi | Brown Wood-Rail | VU |
| Aramidopsis plateni | Snoring Rail | VU |
| Aratinga labati | Guadeloupe Parakeet | EX |
| Arawacus aethesa | EN | |
| Arborophila mandellii | Chestnut-breasted Partridge | VU |
| Arborophila orientalis | White-faced Partridge | VU |
| Arborophila rufipectus | Sichuan Partridge | EN |
| Arbutus pavarii | VU | |
| Archboldomys luzonensis | Mt Isarog Shrew-mouse | VU |
| Archiaphyosemion jeanpoli | Jeanpol's Killi | EN |
| Archidendron forbesii | VU | |
| Archidendron oblongum | VU | |
| Archidendropsis glandulosa | VU | |
| Archidendropsis lentiscifolia | VU | |
| Archidendropsis paivana | VU | |
| Arcidens wheeleri | Wheeler's Pearly Mussel | CR |
| Arcos poecilophthalmus | Galapagos clingfish | VU |
| Arctodiaptomus burduricus | VU | |
| Arctodiaptomus euacanthus | VU |