American Brook Lamprey vs Kawa-yatsume

Lethenteron appendix compared with Lethenteron camtschaticum

Key Differences

• American Brook Lamprey is Least Concern while Kawa-yatsume is Near Threatened.

Taxonomic Classification

Rank	American Brook Lamprey	Kawa-yatsume
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Petromyzonti (Petromyzonti)	Petromyzonti (Petromyzonti)
Order same	Petromyzontiformes (ヤツメウナギ目)	Petromyzontiformes (ヤツメウナギ目)
Family same	Petromyzontidae	Petromyzontidae
Genus same	Lethenteron	Lethenteron
Species	Lethenteron appendix	Lethenteron camtschaticum

Evolutionary Relationship

American Brook Lamprey and Kawa-yatsume share a common ancestor at the Genus level: Lethenteron.

Conservation Status

American Brook Lamprey

LC — Least Concern

Kawa-yatsume

NT — Near Threatened

Physical Characteristics

Attribute	American Brook Lamprey	Kawa-yatsume
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Brook Lamprey

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States.

Kawa-yatsume

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

American Brook Lamprey

The American Brook Lamprey (Lethenteron appendix) is a species in the genus Lethenteron. It is currently classified as Least Concern on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Kawa-yatsume

The Arctic lamprey (Lethenteron camtschaticum) is a species in the genus Lethenteron. It is currently classified as Near Threatened on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.