| Species name | Common name | Distribution | Max. Length (cm) | 
|---|---|---|---|
| Pacifastacus fortis (Faxon, 1914) | Shasta crayfish | North America | |
| Pacifastacus leniusculus (Dana, 1852) | Signal crayfish | Introduced in Europe & Northern Asia (excluding China) | 15.9 | 
| Pacifastacus nigrescens (Stimpson, 1857) | Sooty crayfish | North America |