Alder vs Sowerby's keeled slug

Alnus glutinosa compared with Tandonia sowerbyi

Key Differences

• Alder is Least Concern while Sowerby's keeled slug is Data Deficient.

Taxonomic Classification

Rank	Alder	Sowerby's keeled slug
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Magnoliopsida (Dicots)	Gastropoda (Gastropoda)
Order	Fagales (Beeches & Oaks)	Stylommatophora (Stylommatophora)
Family	Betulaceae	Milacidae
Genus	Alnus	Tandonia
Species	Alnus glutinosa	Tandonia sowerbyi

Conservation Status

Alder

LC — Least Concern

Sowerby's keeled slug

DD — Data Deficient

Physical Characteristics

Attribute	Alder	Sowerby's keeled slug
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).

Sowerby's keeled slug

Habitat

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

Range

Found across Europe (10 countries) and Oceania and the Pacific (New Zealand).

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇿 New Zealand