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 |
|---|---|
| Rainier roachfly (Soliperla fenderi) | Arthropods |
| Razor clam (Siliqua patula) | Molluscs |
| Red bat (Lasiurus borealis) | Mammals |
| Red Irish lord (Hemilepidotus hemilepidotus) | Fish |
| Red knot (Calidris canutus) | Birds |
| Red Rock Crab (Cancer productus) | Crustaceans |
| Red sea urchin (Mesocentrotus franciscanus) | Other |
| Red squirrel (Tamiasciurus hudsonicus) | Mammals |
| Red-necked grebe (Podiceps grisegena) | Birds |
| Red-tailed chipmunk (Tamias ruficaudus) | Mammals |
| Redbanded rockfish (Sebastes babcocki) | Fish |
| Redside shiner (Richardsonius balteatus) | Fish |
| Redstripe Rockfish (Sebastes proriger) | Fish |
| Redtail surfperch (Amphistichus rhodoterus) | Fish |
| Reticulate sculpin (Cottus perplexus) | Fish |
| Rex sole (Glyptocephalus zachirus) | Fish |
| Riffle sculpin (Cottus gulosus) | Fish |
| Ring-necked pheasant (Phasianus colchicus) | Birds |
| Ring-necked snake (Diadophis punctatus) | Reptiles |
| River lamprey (Lampetra ayresii) | Fish |
| River otter (Lontra canadensis) | Mammals |
| Roadside skipper (Amblyscirtes vialis) | Butterflies and moths |
| Rock bass (Ambloplites rupestris) | Fish |
| Rock greenling (Hexagrammos lagocephalus) | Fish |
| Rock sandpiper (Calidris ptilocnemis) | Birds |