Arctic barrel-bubble vs Japanese Weasel

Retusa obtusa compared with Mustela itatsi

Key Differences

• Arctic barrel-bubble is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Arctic barrel-bubble	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Cephalaspidea (Cephalaspidea)	Carnivora (Carnivorans)
Family	Retusidae	Mustelidae (Weasels & Otters)
Genus	Retusa	Mustela
Species	Retusa obtusa	Mustela itatsi

Evolutionary Relationship

Arctic barrel-bubble and Japanese Weasel share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic barrel-bubble

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Arctic barrel-bubble	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic barrel-bubble

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Arctic barrel-bubble

The Arctic barrel-bubble (Retusa obtusa) is a species in the genus Retusa. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.