Common Periwinkle vs Gray Birch Mouse

Littorina littorea compared with Sicista pseudonapaea

Key Differences

• Common Periwinkle is Least Concern while Gray Birch Mouse is Data Deficient.

Taxonomic Classification

Rank	Common Periwinkle	Gray Birch Mouse
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Mollusca (มอลลัสกา)	Chordata (สัตว์มีแกนสันหลัง)
Class	Gastropoda (ชั้นแกสโทรโพดา)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Littorinimorpha (Littorinimorpha)	Rodentia (อันดับสัตว์ฟันแทะ)
Family	Littorinidae	Dipodidae
Genus	Littorina	Sicista
Species	Littorina littorea	Sicista pseudonapaea

Evolutionary Relationship

Common Periwinkle and Gray Birch Mouse share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Common Periwinkle

LC — Least Concern

Gray Birch Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Common Periwinkle	Gray Birch Mouse
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).

Gray Birch Mouse

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.