Big eye chimaera vs Lesser Noctule

Hydrolagus macrophthalmus compared with Nyctalus leisleri

Key Differences

• Big eye chimaera is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Big eye chimaera	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Holocephali (Holocephali)	Mammalia (Mammals)
Order	Chimaeriformes (Chimaeriformes)	Chiroptera (Bats)
Family	Chimaeridae	Vespertilionidae
Genus	Hydrolagus	Nyctalus
Species	Hydrolagus macrophthalmus	Nyctalus leisleri

Evolutionary Relationship

Big eye chimaera and Lesser Noctule share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big eye chimaera

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Big eye chimaera	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big eye chimaera

Habitat

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

Range

Found in Chile.

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.

Big eye chimaera

The Big eye chimaera (Hydrolagus macrophthalmus) is a species in the genus Hydrolagus. It is currently classified as Least Concern on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.