Genus Lampetra

 
 

American brook lamprey - Blind and wormlike as ammocoetes or larvae, the american brook lamprey metamorphoses into a brown cylinder, almost 8 inches long.

 
 

Miller Lake lamprey - The Miller Lake lamprey is a species of fish in the Petromyzontidae family.

 
 

European brook lamprey - Unlike most species of lamprey, the adults do not migrate to sea nor do they have a parasitic phase.

 
 

Pacific lamprey - The Pacific lamprey lives along the Pacific Coast of North America and Asia.

Order : Petromyzontiformes
Family : Petromyzontidae
Genus : Lampetra