Common Periwinkle vs East Asian Free-tailed Bat

Littorina littorea compared with Tadarida insignis

Key Differences

• Common Periwinkle is Least Concern while East Asian Free-tailed Bat is Data Deficient.

Taxonomic Classification

Rank	Common Periwinkle	East Asian Free-tailed Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Chiroptera (Bats)
Family	Littorinidae	Molossidae
Genus	Littorina	Tadarida
Species	Littorina littorea	Tadarida insignis

Evolutionary Relationship

Common Periwinkle and East Asian Free-tailed Bat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

East Asian Free-tailed Bat

DD — Data Deficient

Physical Characteristics

Attribute	Common Periwinkle	East Asian Free-tailed Bat
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).

East Asian Free-tailed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan.

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.