Common Periwinkle vs Johan s Spiny Mouse

Littorina littorea compared with Acomys johannis

Taxonomic Classification

Rank	Common Periwinkle	Johan s Spiny Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Rodentia (Rodents)
Family	Littorinidae	Muridae (Mice & Rats)
Genus	Littorina	Acomys
Species	Littorina littorea	Acomys johannis

Evolutionary Relationship

Common Periwinkle and Johan s Spiny Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Johan s Spiny Mouse

LC — Least Concern

Physical Characteristics

Attribute	Common Periwinkle	Johan s Spiny Mouse
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).

Johan s Spiny Mouse

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.