Circular Ear Shell vs Noctule

Haliotis cyclobates compared with Nyctalus noctula

Key Differences

• Circular Ear Shell is Least Concern while Noctule is Vulnerable.

Taxonomic Classification

Rank	Circular Ear Shell	Noctule
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Gastropoda (腹足綱)	Mammalia (哺乳類)
Order	Lepetellida (Lepetellida)	Chiroptera (翼手目)
Family	Haliotidae	Vespertilionidae
Genus	Haliotis	Nyctalus
Species	Haliotis cyclobates	Nyctalus noctula

Evolutionary Relationship

Circular Ear Shell and Noctule share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Circular Ear Shell

LC — Least Concern

Noctule

VU — Vulnerable

Physical Characteristics

Attribute	Circular Ear Shell	Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Circular Ear Shell

Habitat

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

Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Circular Ear Shell

The Circular Ear Shell (Haliotis cyclobates) is a species in the genus Haliotis. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Noctule

Noctule(Nyctalus noctula、オオコウモリ)は、IUCNレッドリストで危急(VU)に分類されている。野生での絶滅危機が高く、個体群が減少し生息地への圧力が増大している。