ARKive’s Most Wanted Species
ARKive’s most wanted species listed alphabetically by scientific name
| Scientific name | Common name | Status |
|---|---|---|
| Orthochromis rugufuensis | VU | |
| Orthochromis uvinzae | CR | |
| Orthodontopsis bardunovii | EN | |
| Orthogeomys lanius | Big Pocket Gopher | CR |
| Orthotrichum truncato-dentatum | EN | |
| Orthoxiphus nigrifrons | EN | |
| Orthrias tschaiyssuensis | VU | |
| Oryza neocaledonica | EN | |
| Oryzias orthognathus | Sharp-jawed Buntingi | EN |
| Oryzias profundicola | VU | |
| Oryzomys antillarum | Jamaican Rice Rat | EX |
| Oryzomys gorgasi | Gorgas’s rice rat | EN |
| Oryzomys nelsoni | Tres Marias Island Rice Rat | EX |
| Osmoderma cristinae | EN | |
| Osmoderma italica | EN | |
| Osmoderma lassallei | EN | |
| Osmoxylon arrhenicum | VU | |
| Osmoxylon chrysanthum | VU | |
| Osmoxylon corneri | VU | |
| Osmoxylon ellipsoideum | VU | |
| Osmoxylon lanceolatum | VU | |
| Osmoxylon mariannense | CR | |
| Osmoxylon reburrum | VU | |
| Osmoxylon whitmorei | VU | |
| Osornophryne guacamayo | Guacamayo Plump Toad | EN |
| Osornophryne sumacoensis | VU | |
| Ospatulus palaemophagus | EN | |
| Ospatulus truncatus | Bitungu | CR |
| Ossaea incerta | EN | |
| Ossaea sparrei | VU | |
| Osteobrama bhimensis | EN | |
| Osteochilus longidorsalis | Long Finned Barb | EN |
| Osteopilus crucialis | Jamaican Snoring Frog | EN |
| Osteopilus marianae | Yellow Bromeliad Frog | EN |
| Osteopilus wilderi | Green Bromeliad Frog | EN |
| Ostodes minor | CR | |
| Otomys barbouri | Barbour’s Vlei Rat | EN |
| Otomys burtoni | Burton’s vlei rat | EN |
| Otomys lacustris | Tanzanian Vlei Rat | VU |
| Otomys occidentalis | Western Vlei Rat | VU |
| Otopharynx pachycheilus | VU | |
| Otopharynx walteri | Aristochromis Deep | VU |
| Otophora unilocularis | EX | |
| Otus capnodes | Anjouan scops-owl | CR |
| Otus pauliani | Karthala Scops Owl | CR |
| Otus siaoensis | Siau Scops-owl | CR |
| Ouagapia perryi | EN | |
| Ouagapia ratusukuni | CR | |
| Ouratea amplectens | VU | |
| Ouratea cocleensis | VU |
