ARKive's most wanted species listed alphabetically by scientific name
| Scientific name | Common name | Status |
|---|---|---|
| Tapura arachnoidea | VU | |
| Tapura carinata | VU | |
| Tapura letestui | VU | |
| Tapura neglecta | VU | |
| Tarenna drummondii | VU | |
| Tarenna luhomeroensis | VU | |
| Tarenna monosperma | EN | |
| Tarenna nilagirica | VU | |
| Tarenna quadrangularis | VU | |
| Tarraconia gasulli | CR | |
| Tarraconia rolani | EN | |
| Tarsius pelengensis | Peleng Tarsier | EN |
| Tarsomys echinatus | Spiny Tarsomys | VU |
| Tasmanipatus anophthalmus | EN | |
| Tasmanophlebi lacus-coerulei | Large Blue Lake Mayfly | VU |
| Tasmanoplectron isolatum | VU | |
| Tautoga onitis | Tautog | VU |
| Taxitheliella richardsii | CR | |
| Taxus contorta | VU | |
| Teclea carpopunctifera | VU | |
| Tefennia tefennica | VU | |
| Tehuana lamothei | EN | |
| Tehuana poglayenorum | EN | |
| Tehuana veracruzana | CR | |
| Teleogramma brichardi | CR | |
| Teleogramma gracile | VU | |
| Teleogramma monogramma | VU | |
| Telestes beoticus | Paskóviza | EN |
| Telestes croaticus | EN | |
| Telestes fontinalis | CR | |
| Telestes metohiensis | VU | |
| Telestes sp. nov. | EN | |
| Telestes turskyi | CR | |
| Telestes ukliva | EX | |
| Teleutomyrmex kutteri | VU | |
| Teline nervosa | CR | |
| Teline rosmarinifolia | EN | |
| Teline salsoloides | CR | |
| Telmatherina abendanoni | VU | |
| Telmatherina antoniae | VU | |
| Telmatherina celebensis | VU | |
| Telmatherina obscura | VU | |
| Telmatherina opudi | VU | |
| Telmatherina prognatha | VU | |
| Telmatherina sarasinorum | VU | |
| Telmatherina wahjui | VU | |
| Telmatobius arequipensis | VU | |
| Telmatobius atacamensis | Salta water frog | CR |
| Telmatobius brevirostris | EN | |
| Telmatobius ceiorum | Catamarca water frog | EN |