Common Periwinkle vs Hairy-tailed Tree Rat

Littorina littorea compared with Brachytarsomys villosa

Key Differences

• Common Periwinkle is Least Concern while Hairy-tailed Tree Rat is Vulnerable.

Taxonomic Classification

Rank	Common Periwinkle	Hairy-tailed Tree Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Rodentia (Rodents)
Family	Littorinidae	Nesomyidae
Genus	Littorina	Brachytarsomys
Species	Littorina littorea	Brachytarsomys villosa

Evolutionary Relationship

Common Periwinkle and Hairy-tailed Tree Rat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Hairy-tailed Tree Rat

VU — Vulnerable

Physical Characteristics

Attribute	Common Periwinkle	Hairy-tailed Tree 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).

Hairy-tailed Tree Rat

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.