Eurasian water shrew vs St. James' shell

Neomys fodiens compared with Pecten maximus

Key Differences

• Eurasian water shrew is Endangered while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Eurasian water shrew	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Soricomorpha (Soricomorpha)	Pectinida (Pectinida)
Family	Soricidae	Pectinidae
Genus	Neomys	Pecten
Species	Neomys fodiens	Pecten maximus

Evolutionary Relationship

Eurasian water shrew and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian water shrew

EN — Endangered

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Eurasian water shrew	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eurasian water shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Russia, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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).

Eurasian water shrew

Eurasian water shrew (Neomys fodiens) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden