Least Brook Lamprey vs river lamprey, lampern

Lampetra aepyptera compared with Lampetra fluviatilis

Key Differences

• Least Brook Lamprey is Least Concern while river lamprey, lampern is Vulnerable.

Taxonomic Classification

Rank	Least Brook Lamprey	river lamprey, lampern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Petromyzonti (Petromyzonti)	Petromyzonti (Petromyzonti)
Order same	Petromyzontiformes (lamprey)	Petromyzontiformes (lamprey)
Family same	Petromyzontidae	Petromyzontidae
Genus same	Lampetra	Lampetra
Species	Lampetra aepyptera	Lampetra fluviatilis

Evolutionary Relationship

Least Brook Lamprey and river lamprey, lampern share a common ancestor at the Genus level: Lampetra.

Conservation Status

Least Brook Lamprey

LC — Least Concern

river lamprey, lampern

VU — Vulnerable

Physical Characteristics

Attribute	Least Brook Lamprey	river lamprey, lampern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Least Brook Lamprey

river lamprey, lampern

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United Kingdom. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.