Common Periwinkle vs Heavy-browed Mouse Opossum

Littorina littorea compared with Marmosa andersoni

Key Differences

• Common Periwinkle is Least Concern while Heavy-browed Mouse Opossum is Data Deficient.

Taxonomic Classification

Rank	Common Periwinkle	Heavy-browed Mouse Opossum
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Chordata (脊索动物门)
Class	Gastropoda (腹足纲)	Mammalia (哺乳動物)
Order	Littorinimorpha (滨螺形目)	Didelphimorphia (负鼠目)
Family	Littorinidae	Didelphidae
Genus	Littorina	Marmosa
Species	Littorina littorea	Marmosa andersoni

Evolutionary Relationship

Common Periwinkle and Heavy-browed Mouse Opossum share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Common Periwinkle

LC — Least Concern

Heavy-browed Mouse Opossum

DD — Data Deficient

Physical Characteristics

Attribute	Common Periwinkle	Heavy-browed Mouse Opossum
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).

Heavy-browed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Periwinkle

玉黍螺（Littorina littorea）在IUCN红色名录中被列为无危（LC）。在其分布范围内广泛分布，种群数量稳定，无直接保护威胁。