Common Periwinkle vs Graceful Laucha

Littorina littorea compared with Calomys lepidus

Taxonomic Classification

Rank	Common Periwinkle	Graceful Laucha
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	Cricetidae
Genus	Littorina	Calomys
Species	Littorina littorea	Calomys lepidus

Evolutionary Relationship

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

Conservation Status

Common Periwinkle

LC — Least Concern

Graceful Laucha

LC — Least Concern

Physical Characteristics

Attribute	Common Periwinkle	Graceful Laucha
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).

Graceful Laucha

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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。