Common Periwinkle vs Isarog Chrotomys

Littorina littorea compared with Chrotomys gonzalesi

Key Differences

• Common Periwinkle is Least Concern while Isarog Chrotomys is Near Threatened.

Taxonomic Classification

Rank	Common Periwinkle	Isarog Chrotomys
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	Chrotomys
Species	Littorina littorea	Chrotomys gonzalesi

Evolutionary Relationship

Common Periwinkle and Isarog Chrotomys share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Periwinkle

LC — Least Concern

Isarog Chrotomys

NT — Near Threatened

Physical Characteristics

Attribute	Common Periwinkle	Isarog Chrotomys
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).

Isarog Chrotomys

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.