Lesser Noctule vs Quadrangular Peaclam

Nyctalus leisleri compared with Euglesa milium

Key Differences

• Lesser Noctule is Endangered while Quadrangular Peaclam is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Quadrangular Peaclam
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Chiroptera (Bats)	Sphaeriida (Sphaeriida)
Family	Vespertilionidae	Sphaeriidae
Genus	Nyctalus	Euglesa
Species	Nyctalus leisleri	Euglesa milium

Evolutionary Relationship

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

Conservation Status

Lesser Noctule

EN — Endangered

Quadrangular Peaclam

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Quadrangular Peaclam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Quadrangular Peaclam

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, and United States.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇩🇰 Denmark