Pacific lamprey
- kingdom: Animalia
- phylum: Chordata
- class: Cephalaspidomorphi
- order: Petromyzontiformes
- family: Petromyzontidae
- genus: Entosphenus
- species: Entosphenus tridentatus
- Prince Rupert
British Columbia
Canada- Dallesport
- Gold Bar
- Vancouver
Washington
United States