brook lamprey vs Japanese Weasel

Lampetra planeri compared with Mustela itatsi

Key Differences

• brook lamprey is Vulnerable while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	brook lamprey	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Petromyzonti (Petromyzonti)	Mammalia (Mammals)
Order	Petromyzontiformes (lamprey)	Carnivora (Carnivorans)
Family	Petromyzontidae	Mustelidae (Weasels & Otters)
Genus	Lampetra	Mustela
Species	Lampetra planeri	Mustela itatsi

Evolutionary Relationship

brook lamprey and Japanese Weasel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

brook lamprey

VU — Vulnerable

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	brook lamprey	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brook lamprey

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

brook lamprey

The Brook Lamprey (Lampetra planeri) is a species in the genus Lampetra. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.