Common Periwinkle vs Philippine mouse-deer

Littorina littorea compared with Tragulus nigricans

Key Differences

• Common Periwinkle is Least Concern while Philippine mouse-deer is Endangered.

Taxonomic Classification

Rank	Common Periwinkle	Philippine mouse-deer
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Artiodactyla (Even-toed Ungulates)
Family	Littorinidae	Tragulidae
Genus	Littorina	Tragulus
Species	Littorina littorea	Tragulus nigricans

Evolutionary Relationship

Common Periwinkle and Philippine mouse-deer share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Philippine mouse-deer

EN — Endangered

Physical Characteristics

Attribute	Common Periwinkle	Philippine mouse-deer
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).

Philippine mouse-deer

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.