Common Periwinkle vs Flat-headed cat

Littorina littorea compared with Prionailurus planiceps

Key Differences

• Common Periwinkle is Least Concern while Flat-headed cat is Endangered.

Taxonomic Classification

Rank	Common Periwinkle	Flat-headed cat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Carnivora (Carnivorans)
Family	Littorinidae	Felidae (Cats)
Genus	Littorina	Prionailurus
Species	Littorina littorea	Prionailurus planiceps

Evolutionary Relationship

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

Conservation Status

Common Periwinkle

LC — Least Concern

Flat-headed cat

EN — Endangered

Physical Characteristics

Attribute	Common Periwinkle	Flat-headed cat
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 cat

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.