Common Periwinkle vs Flat-headed Kusimanse

Littorina littorea compared with Crossarchus platycephalus

Taxonomic Classification

Rank	Common Periwinkle	Flat-headed Kusimanse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Carnivora (Carnivorans)
Family	Littorinidae	Herpestidae
Genus	Littorina	Crossarchus
Species	Littorina littorea	Crossarchus platycephalus

Evolutionary Relationship

Common Periwinkle and Flat-headed Kusimanse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Flat-headed Kusimanse

LC — Least Concern

Physical Characteristics

Attribute	Common Periwinkle	Flat-headed Kusimanse
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).

Flat-headed Kusimanse

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.