Black-shouldered Opossum vs Common Periwinkle

Caluromysiops irrupta compared with Littorina littorea

Taxonomic Classification

Rank	Black-shouldered Opossum	Common Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Didelphimorphia (Didelphimorphia)	Littorinimorpha (Littorinimorpha)
Family	Didelphidae	Littorinidae
Genus	Caluromysiops	Littorina
Species	Caluromysiops irrupta	Littorina littorea

Evolutionary Relationship

Black-shouldered Opossum and Common Periwinkle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black-shouldered Opossum

LC — Least Concern

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Black-shouldered Opossum	Common Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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).

Black-shouldered Opossum

The Black-shouldered Opossum (Caluromysiops irrupta) is a species in the genus Caluromysiops. It is currently classified as Least Concern on the IUCN Red List. 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.