Common Periwinkle vs Medellín Small-eared Shrew

Littorina littorea compared with Cryptotis medellinia

Taxonomic Classification

Rank	Common Periwinkle	Medellín Small-eared Shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Soricomorpha (Soricomorpha)
Family	Littorinidae	Soricidae
Genus	Littorina	Cryptotis
Species	Littorina littorea	Cryptotis medellinia

Evolutionary Relationship

Common Periwinkle and Medellín Small-eared Shrew share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Medellín Small-eared Shrew

LC — Least Concern

Physical Characteristics

Attribute	Common Periwinkle	Medellín Small-eared Shrew
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).

Medellín Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.