Northern Red-backed Vole vs St. James' shell

Myodes rutilus compared with Pecten maximus

Taxonomic Classification

Rank	Northern Red-backed Vole	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Rodentia (Rodents)	Pectinida (Pectinida)
Family	Cricetidae	Pectinidae
Genus	Myodes	Pecten
Species	Myodes rutilus	Pecten maximus

Evolutionary Relationship

Northern Red-backed Vole and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Northern Red-backed Vole

LC — Least Concern

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Northern Red-backed Vole	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Northern Red-backed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Norway, Russia, and Sweden.

St. James' shell

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (China), Europe (8 countries), and South America (Chile).

St. James' shell

St. James' shell (Pecten maximus) 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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden