Aquatic invasive species (AIS) pose an ongoing threat to Washington's environment and economy. Find out which species are considered invasive in Washington.
| Species | Category | Family | AIS classification |
|---|---|---|---|
| Palmate newt (Triturus helveticus helveticus) | Amphibians | Salamandridae | Prohibited |
| Perezs frog (Rana perezi) | Amphibians | Ranidae | Prohibited |
| Persia Mountain salamander (Batrachuperus persicus) | Amphibians | Hynobiidae | Prohibited |
| Plains spadefoot toad (Spea bombifrons) | Amphibians | Pelobatidae | Prohibited |
| Pool frog (Rana lessonae) | Amphibians | Ranidae | Prohibited |
| Pyrenean Brook salamander (Euproctus asper) | Amphibians | Salamandridae | Prohibited |
| Pyrenean frog (Rana pyrenaica) | Amphibians | Ranidae | Prohibited |
| Red-bellied newt (Taricha rivularis) | Amphibians | Salamandridae | Prohibited |
| Ryukyu Brown frog (Rana okinavana) | Amphibians | Ranidae | Prohibited |
| Sahara frog (Rana saharica) | Amphibians | Ranidae | Prohibited |
| San Chiang Tree frog (Hyla sanchiangensis) | Amphibians | Hylidae | Prohibited |
| Shangcheng Stout salamander (Pachyhynobius shangchengensis) | Amphibians | Hynobiidae | Prohibited |
| Shensi Tree frog (Hyla tsinlingensis) | Amphibians | Hylidae | Prohibited |
| Shiucheng salamander (Pseudohynobius shuichengensis) | Amphibians | Hynobiidae | Prohibited |
| Siberian frog (Rana altaica) | Amphibians | Ranidae | Prohibited |
| Siberian salamander (Ranodon sibiricus) | Amphibians | Hynobiidae | Prohibited |
| Siberian wood frog (Rana amurensis) | Amphibians | Ranidae | Prohibited |
| Sichuan frog (Rana shuchinae) | Amphibians | Ranidae | Prohibited |
| Sierra newt (Taricha torosa) | Amphibians | Salamandridae | Prohibited |
| Smooth newt (Triturus vulgaris lantzi) | Amphibians | Salamandridae | Prohibited |
| Southern Crested newt (Triturus karelinii) | Amphibians | Salamandridae | Prohibited |
| Spectacled salamander (Salamandrina terdigitata) | Amphibians | Salamandridae | Prohibited |
| Spot-Tailed Warty newt (Paramesotriton caudopunctatus) | Amphibians | Salamandridae | Prohibited |
| Spotless Paddle Tail newt (Pachytriton labiatus) | Amphibians | Salamandridae | Prohibited |
| Spotted Paddle Tail newt (Pachytriton brevipes) | Amphibians | Salamandridae | Prohibited |