ARKive's most wanted species listed alphabetically by scientific name
| Scientific name | Common name | Status |
|---|---|---|
| Arctodiaptomus kamtschaticus | VU | |
| Arctodiaptomus michaeli | VU | |
| Ardisia alstonii | VU | |
| Ardisia amplexicaulis | EN | |
| Ardisia blatteri | EN | |
| Ardisia brittonii | EN | |
| Ardisia carchiana | VU | |
| Ardisia colonensis | EN | |
| Ardisia eugenioides | EN | |
| Ardisia furfuracella | VU | |
| Ardisia jamaicensis | VU | |
| Ardisia koupensis | EN | |
| Ardisia martinensis | VU | |
| Ardisia oligantha | CR | |
| Ardisia panamensis | VU | |
| Ardisia premontana | VU | |
| Ardisia rufa | EN | |
| Ardisia scheryi | EN | |
| Ardisia schlechteri | CR | |
| Ardisia sonchifolia | EN | |
| Ardisia subsessilifolia | VU | |
| Ardisia urbanii | VU | |
| Ardisia websterii | VU | |
| Areca parens | VU | |
| Areca whitfardii | VU | |
| Arenaria nevadensis | CR | |
| Arganiella wolfi | VU | |
| Argiolestes realensis | VU | |
| Argna bourguignatiana | VU | |
| Argna valsabina | VU | |
| Argusianus bipunctatus | Double-banded Argus | EX |
| Argyranthemum lidii | EN | |
| Argyranthemum thalassophilum | EN | |
| Argyranthemum winteri | CR | |
| Argyresthia castaneela | Chestnut Ermine Moth | EX |
| Argyrosomus hololepidotus | Madagascar Meagre | EN |
| Argyroxiphium virescens | EX | |
| Arianta chamaeleon | EN | |
| Arianta xatartii | VU | |
| Arielulus societatis | Social Sprite | VU |
| Arinia biplicata | EN | |
| Arinia boreoborneensis | CR | |
| Arinia dentifera | CR | |
| Arinia oviformis | CR | |
| Arinia simplex | CR | |
| Arinia streptaxiformis | EN | |
| Aristeguietia arborea | VU | |
| Aristeguietia chimborazensis | EN | |
| Aristolochia cucurbitoides | VU | |
| Aristolochia delavayi | EN |