Learn more about a specific fish or wildlife species in Washington.
Species marked with an AIS badge are aquatic invasive species. For more information about these environmentally and economically destructive species, visit the Aquatic invasive species page.
| Species | Category |
|---|---|
| Sperm whale (Physeter macrocephalus) | Mammals |
| Splitnose rockfish (Sebastes diploproa) | Fish |
| Spot shrimp (Pandalus platyceros) | Crustaceans |
| Spotted bat (Euderma maculatum) | Mammals |
| Spotted ratfish (Hydrolagus colliei) | Fish |
| Spotted sandpiper (Actitis macularius) | Birds |
| Spotted skunk (Spilogale putorius) | Mammals |
| Spotted taildropper (slug) (Prophysaon vanattae pardalis.) | Molluscs |
| Spotted towhee (Pipilo maculatus) | Birds |
| Spruce grouse (Canachites canadensis) | Birds |
| Squat lobster (Munida quadrispina) | Arthropods |
| Starry flounder (Platichthys stellatus) | Fish |
| Steelhead (Oncorhynchus mykiss) | Fish |
| Steelhead (Lower Columbia River DPS) (Oncorhynchus mykiss pop. 14) | Fish |
| Steelhead (Middle Columbia River DPS) (Oncorhynchus mykiss pop. 17) | Fish |
| Steelhead (Puget Sound DPS) (Oncorhynchus mykiss pop. 37) | Fish |
| Steelhead (Snake River DPS) (Oncorhynchus mykiss pop. 13) | Fish |
| Steelhead (Upper Columbia River DPS) (Oncorhynchus mykiss pop. 12) | Fish |
| Steller sea lion (Eumetopias jubatus) | Mammals |
| Steller's jay (Cyanocitta stelleri) | Birds |
| Straits acmon blue (Icaricia acmon sp.) | Butterflies and moths |
| Streaked horned lark (Eremophila alpestris strigata) | Birds |
| Striped marlin (Tetrapturus audax) | Fish |
| Striped skunk (Mephitis mephitis) | Mammals |
| Striped Surfperch (Embiotoca lateralis) | Fish |