Budapest slug vs Lesser Noctule

Tandonia budapestensis compared with Nyctalus leisleri

Key Differences

• Budapest slug is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Budapest slug	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Stylommatophora (Stylommatophora)	Chiroptera (Bats)
Family	Milacidae	Vespertilionidae
Genus	Tandonia	Nyctalus
Species	Tandonia budapestensis	Nyctalus leisleri

Evolutionary Relationship

Budapest slug and Lesser Noctule share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Budapest slug

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Budapest slug	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Budapest slug

Habitat

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

Range

Widely distributed across Europe (12 countries), North America (United States), and Oceania and the Pacific (New Zealand).

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Budapest slug

The Budapest Slug (Tandonia budapestensis) is a species in the genus Tandonia. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden