vs Lesser Noctule

Biddulphia rhombus compared with Nyctalus leisleri

Key Differences

• is Not Evaluated while Lesser Noctule is Endangered.

Taxonomic Classification

Rank		Lesser Noctule
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Ochrophyta (Ochrophyta)	Chordata (Chordates)
Class	Bacillariophyceae (Bacillariophyceae)	Mammalia (Mammals)
Order	Biddulphiales (Biddulphiales)	Chiroptera (Bats)
Family	Biddulphiaceae	Vespertilionidae
Genus	Biddulphia	Nyctalus
Species	Biddulphia rhombus	Nyctalus leisleri

Conservation Status

NE — Not Evaluated

Lesser Noctule

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Habitat

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

Range

Distributed across Denmark, Sweden, and Taiwan.

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.

Biddulphia rhombus is a centric marine diatom with a distinctly bipolar, rhomboid to broadly lanceolate valve shape bearing prominent horn-like elevations. It inhabits coastal planktonic and benthic environments in temperate to warm seas worldwide. This photosynthetic diatom contributes to marine primary production in neritic coastal waters.

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇸🇪 Sweden