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 |
|---|---|
| Northern grasshopper mouse (Onychomys leucogaster) | Mammals |
| Northern leopard frog (Lithobates [Rana] pipiens) | Amphibians |
| Northern pikeminnow (Ptychocheilus oregonensis) | Fish |
| Northern pocket gopher (Thomomys talpoides) | Mammals |
| Northern red-legged frog (Rana aurora) | Amphibians |
| Northern rock sole (Lepidopsetta polyxystra) | Fish |
| Northern Rocky Mountains refugium caddisfly (Goereilla baumanni ) | Arthropods |
| Northern rubber boa (Charina bottae) | Reptiles |
| Northern sagebrush lizard (Sceloporus graciosus) | Reptiles |
| Northern spotted owl (Strix occidentalis caurina) | Birds |
| Northern waterthrush (Seiurus noveboracensis) | Birds |
| Northwestern gartersnake (Thamnophis ordinoides) | Reptiles |
| Northwestern pond turtle (Actinemys marmorata) | Reptiles |
| Northwestern salamander (Ambystoma gracile) | Amphibians |
| Nuttall's cockle (clam) (Clinocardium nuttallii) | Molluscs |
| Nuttall's cottontail (rabbit) (Sylvilagus nuttallii) | Mammals |
| Ocean Pink shrimp (Pandalus jordani) | Crustaceans |
| Olympia oyster (Ostrea lurida) | Molluscs |
| Olympia pebblesnail (Fluminicola virens) | Molluscs |
| Olympia pocket gopher - Mazama species (Thomomys mazama pugetensis) | Mammals |
| Olympic marmot (Marmota olympus) | Mammals |
| Olympic mudminnow (Novumbra hubbsi) | Fish |
| Olympic pocket gopher - Mazama species (Thomomys mazama melanops) | Mammals |
| Olympic torrent salamander (Rhyacotriton olympicus) | Amphibians |
| One-band juga (Juga sp. 8) | Molluscs |