Alder vs Bark Snail

Alnus glutinosa compared with Zonitoides arboreus

Key Differences

• Alder is Least Concern while Bark Snail is Not Evaluated.

Taxonomic Classification

Rank	Alder	Bark Snail
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Magnoliopsida (Dicots)	Gastropoda (Gastropoda)
Order	Fagales (Beeches & Oaks)	Stylommatophora (Stylommatophora)
Family	Betulaceae	Gastrodontidae
Genus	Alnus	Zonitoides
Species	Alnus glutinosa	Zonitoides arboreus

Conservation Status

Alder

LC — Least Concern

Bark Snail

NE — Not Evaluated

Physical Characteristics

Attribute	Alder	Bark Snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Africa (South Africa), Asia (India, Japan), Europe (6 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Chile).

Bark Snail

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (Israel, Japan, Taiwan), Europe (13 countries), North America (Guatemala, Mexico, United States), Oceania and the Pacific (New Zealand), and South America (4 countries).

Alder

The Alder (Alnus glutinosa) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Bark Snail

The Bark Snail (Zonitoides arboreus) is a species in the genus Zonitoides. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Shared Countries

Both species can be found in 9 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇯🇵 Japan 🇳🇿 New Zealand 🇳🇴 Norway 🇵🇹 Portugal 🇿🇦 South Africa 🇸🇪 Sweden 🇺🇸 United States