Common Periwinkle vs Mexican Harvest Mouse

Littorina littorea compared with Reithrodontomys mexicanus

Taxonomic Classification

Rank	Common Periwinkle	Mexican Harvest Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Littorinimorpha (Littorinimorpha)	Rodentia (Rodents)
Family	Littorinidae	Cricetidae
Genus	Littorina	Reithrodontomys
Species	Littorina littorea	Reithrodontomys mexicanus

Evolutionary Relationship

Common Periwinkle and Mexican Harvest Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Mexican Harvest Mouse

LC — Least Concern

Physical Characteristics

Attribute	Common Periwinkle	Mexican Harvest 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).

Mexican Harvest Mouse

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.