greater grass snail vs Swabian grass snail

Vallonia declivis compared with Vallonia suevica

Key Differences

• greater grass snail is Near Threatened while Swabian grass snail is Endangered.

Taxonomic Classification

Rank	greater grass snail	Swabian grass snail
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Mollusca (رخويات)	Mollusca (رخويات)
Class same	Gastropoda (بطنيات القدم)	Gastropoda (بطنيات القدم)
Order same	Stylommatophora (عاموديات العيون)	Stylommatophora (عاموديات العيون)
Family same	Valloniidae	Valloniidae
Genus same	Vallonia	Vallonia
Species	Vallonia declivis	Vallonia suevica

Evolutionary Relationship

greater grass snail and Swabian grass snail share a common ancestor at the Genus level: Vallonia.

Conservation Status

greater grass snail

NT — Near Threatened

Swabian grass snail

EN — Endangered

Physical Characteristics

Attribute	greater grass snail	Swabian grass snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

greater grass snail

Habitat

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

Range

Found in France. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Swabian grass snail

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Italy. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.