clear glass snail vs Garlic Snail

Oxychilus clarus compared with Oxychilus alliarius

Key Differences

• clear glass snail is Near Threatened while Garlic Snail is Vulnerable.

Taxonomic Classification

Rank	clear glass snail	Garlic Snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order same	Stylommatophora (Stylommatophora)	Stylommatophora (Stylommatophora)
Family same	Oxychilidae	Oxychilidae
Genus same	Oxychilus	Oxychilus
Species	Oxychilus clarus	Oxychilus alliarius

Evolutionary Relationship

clear glass snail and Garlic Snail share a common ancestor at the Genus level: Oxychilus.

Conservation Status

clear glass snail

NT — Near Threatened

Garlic Snail

VU — Vulnerable

Physical Characteristics

Attribute	clear glass snail	Garlic Snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

clear glass snail

Habitat

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

Range

Distributed across France and Italy. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Garlic Snail

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 4 distinct biome types spanning the Australasia and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Europe (7 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Chile). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

clear glass snail

Clear Glass Snail 2 refers to a second species sharing the common name 'clear glass snail,' likely a distinct taxon within the families Vitrinidae or Gastrodontidae that shares the characteristic translucent, thin-walled shell morphology. Translucent-shelled land snails in these families are distributed across temperate zones of the Northern Hemisphere, with centers of diversity in Europe and North America. Many species in these families are restricted to specific microhabitats characterized by stable humidity and abundant organic matter, such as old deciduous woodland, valley mires, and calcareous grassland with a dense ground flora. These snails graze on the surface film of algae, fungi, and bacteria on dead wood and leaf litter, contributing to nutrient cycling in the leaf-litter layer. The glassy or semi-transparent shell is a shared evolutionary feature across multiple lineages, reflecting convergent adaptation to moist, shaded environments where predation pressure may differ from open habitats. Many glass snails are poorly documented in terms of population size and trends. Conservation concerns for thin-shelled snails typically center on habitat destruction, desiccation from climate change, and acidification of soils that reduce the calcium carbonate availability necessary for shell formation.

Shared Countries

Both species can be found in 1 countries:

🇫🇷 France