Black-Lined Periwinkle vs Japanese Weasel

Littorina saxatilis compared with Mustela itatsi

Key Differences

• Black-Lined Periwinkle is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Black-Lined 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 saxatilis	Mustela itatsi

Evolutionary Relationship

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

Conservation Status

Black-Lined Periwinkle

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Black-Lined Periwinkle	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Lined Periwinkle

Habitat

Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands within the Afrotropic biogeographic realm.

Range

Widely distributed across Africa (Namibia, South Africa), Europe (5 countries), and North America (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.

Black-Lined Periwinkle

The Black-Lined Periwinkle (Littorina saxatilis) is a species in the genus Littorina. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands within the Afrotropic biogeographic realm.