Altai Birch Mouse vs St. James' shell

Sicista napaea compared with Pecten maximus

Taxonomic Classification

Rank	Altai Birch Mouse	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	Dipodidae	Pectinidae
Genus	Sicista	Pecten
Species	Sicista napaea	Pecten maximus

Evolutionary Relationship

Altai Birch Mouse and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Altai Birch Mouse

LC — Least Concern

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Altai Birch Mouse	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Altai Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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).

Altai Birch Mouse

The Altai Birch Mouse (Sicista napaea) is a species in the genus Sicista. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.