Arctic barrel-bubble vs Azores Noctule

Retusa obtusa compared with Nyctalus azoreum

Key Differences

• Arctic barrel-bubble is Least Concern while Azores Noctule is Vulnerable.

Taxonomic Classification

Rank	Arctic barrel-bubble	Azores Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Cephalaspidea (Cephalaspidea)	Chiroptera (Bats)
Family	Retusidae	Vespertilionidae
Genus	Retusa	Nyctalus
Species	Retusa obtusa	Nyctalus azoreum

Evolutionary Relationship

Arctic barrel-bubble and Azores Noctule share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic barrel-bubble

LC — Least Concern

Azores Noctule

VU — Vulnerable

Physical Characteristics

Attribute	Arctic barrel-bubble	Azores Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic barrel-bubble

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Azores Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Arctic barrel-bubble

The Arctic barrel-bubble (Retusa obtusa) is a species in the genus Retusa. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Azores Noctule

The Azores Noctule (Nyctalus azoreum) is a species in the genus Nyctalus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.