Common Periwinkle vs Greater Long-tailed Hamster

Littorina littorea compared with Tscherskia triton

Taxonomic Classification

Rank	Common Periwinkle	Greater Long-tailed Hamster
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Rodentia (Rodents)
Family	Littorinidae	Cricetidae
Genus	Littorina	Tscherskia
Species	Littorina littorea	Tscherskia triton

Evolutionary Relationship

Common Periwinkle and Greater Long-tailed Hamster share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Greater Long-tailed Hamster

LC — Least Concern

Physical Characteristics

Attribute	Common Periwinkle	Greater Long-tailed Hamster
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).

Greater Long-tailed Hamster

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.