ARKive's most wanted species listed alphabetically by scientific name
| Scientific name | Common name | Status |
|---|---|---|
| Synallaxis maranonica | Marañón Spinetail | VU |
| Synallaxis whitneyi | Bahia Spinetail | VU |
| Synapsis ilicifolia | EN | |
| Syncaris pacifica | California Freshwater Shrimp | EN |
| Syncaris pasadenae | Pasadena Shrimp | EX |
| Syndactyla ruficollis | Rufous-necked Foliage-gleaner | VU |
| Syngonium harlingianum | VU | |
| Syngonium sparreorum | VU | |
| Synodontis arnoulti | VU | |
| Synodontis brichardi | VU | |
| Synodontis cuangoanus | VU | |
| Synodontis dekimpei | CR | |
| Synodontis dorsomaculatus | EN | |
| Synodontis guttatus | EN | |
| Synodontis lufirae | VU | |
| Synodontis macrophthalmus | VU | |
| Synodontis pardalis | EN | |
| Synodontis robbianus | VU | |
| Synodontis ruandae | VU | |
| Synsepalum aubrevillei | VU | |
| Synsepalum kassneri | VU | |
| Synsepalum tsounkpe | EN | |
| Synthemis alecto | VU | |
| Syzygium ampliflorum | CR | |
| Syzygium amplifolium | VU | |
| Syzygium andamanicum | CR | |
| Syzygium beddomei | EN | |
| Syzygium benthamianum | VU | |
| Syzygium bourdillonii | EN | |
| Syzygium caryophyllatum | EN | |
| Syzygium chavaran | EN | |
| Syzygium courtallense | CR | |
| Syzygium cyclophyllum | CR | |
| Syzygium densiflorum | VU | |
| Syzygium discophorum | EN | |
| Syzygium fergusoni | EN | |
| Syzygium firmum | VU | |
| Syzygium makul | VU | |
| Syzygium manii | CR | |
| Syzygium micranthum | VU | |
| Syzygium microphyllum | EN | |
| Syzygium minus | EN | |
| Syzygium neesianum | VU | |
| Syzygium occidentale | VU | |
| Syzygium oliganthum | VU | |
| Syzygium palghatense | CR | |
| Syzygium parameswaranii | EN | |
| Syzygium pendulinum | EN | |
| Syzygium phaeophyllum | CR | |
| Syzygium phyllyraeoides | CR |