Common Periwinkle vs Japanese Weasel

Littorina littorea compared with Mustela itatsi

Key Differences

• Common Periwinkle is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Common Periwinkle	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Carnivora (Carnivorans)
Family	Littorinidae	Mustelidae (Weasels & Otters)
Genus	Littorina	Mustela
Species	Littorina littorea	Mustela itatsi

Evolutionary Relationship

Common Periwinkle and Japanese Weasel share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Common Periwinkle	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Periwinkle

Habitat

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

Range

Found across Europe (4 countries) and North America (Canada, United States).

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.

Common Periwinkle

Common Periwinkle (Littorina littorea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.