Birdlike Noctule vs St. James' shell

Nyctalus aviator compared with Pecten maximus

Key Differences

• Birdlike Noctule is Near Threatened while St. James' shell is Least Concern.

Taxonomic Classification

Rank	Birdlike Noctule	St. James' shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Chiroptera (Bats)	Pectinida (Pectinida)
Family	Vespertilionidae	Pectinidae
Genus	Nyctalus	Pecten
Species	Nyctalus aviator	Pecten maximus

Evolutionary Relationship

Birdlike Noctule and St. James' shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Birdlike Noctule

NT — Near Threatened

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	Birdlike Noctule	St. James' shell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Birdlike Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

St. James' shell

Habitat

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

Range

Widely distributed across Asia (China), Europe (8 countries), and South America (Chile).

Birdlike Noctule

The Birdlike Noctule (Nyctalus aviator) is a species in the genus Nyctalus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

St. James' shell

St. James' shell (Pecten maximus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.