European water vole vs Polynesian Tree Snail

Arvicola amphibius compared with Partula crassilabris

Key Differences

• European water vole is Near Threatened while Polynesian Tree Snail is Extinct.

Taxonomic Classification

Rank	European water vole	Polynesian Tree Snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Rodentia (Rodents)	Stylommatophora (Stylommatophora)
Family	Cricetidae	Partulidae
Genus	Arvicola	Partula
Species	Arvicola amphibius	Partula crassilabris

Evolutionary Relationship

European water vole and Polynesian Tree Snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

European water vole

NT — Near Threatened

Polynesian Tree Snail

EX — Extinct

Physical Characteristics

Attribute	European water vole	Polynesian Tree Snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

European water vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Russia, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Polynesian Tree Snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.