Common Periwinkle vs Polynesian rat

Littorina littorea compared with Rattus exulans

Taxonomic Classification

Rank	Common Periwinkle	Polynesian rat
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Gastropoda (腹足綱)	Mammalia (哺乳類)
Order	Littorinimorpha (タマキビガイ下目)	Rodentia (ネズミ目)
Family	Littorinidae	Muridae (Mice & Rats)
Genus	Littorina	Rattus
Species	Littorina littorea	Rattus exulans

Evolutionary Relationship

Common Periwinkle and Polynesian rat share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Common Periwinkle

LC — Least Concern

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Common Periwinkle	Polynesian rat
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).

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Common Periwinkle

タマキビ（Littorina littorea）はIUCNレッドリストで軽度懸念（LC）に分類されている。分布域全体で広く生息し個体数は安定しており、早急な保全上の懸念はない。

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States