Brown smooth hound vs Lesser Noctule

Mustelus henlei compared with Nyctalus leisleri

Key Differences

• Brown smooth hound is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Brown smooth hound	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Chiroptera (Bats)
Family	Triakidae	Vespertilionidae
Genus	Mustelus	Nyctalus
Species	Mustelus henlei	Nyctalus leisleri

Evolutionary Relationship

Brown smooth hound and Lesser Noctule share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown smooth hound

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Brown smooth hound	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.

Brown smooth hound

The Brown Smooth Hound (Mustelus henlei) is a species in the genus Mustelus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.