Humpback smooth hound vs Little Black Serotine

Mustelus whitneyi compared with Eptesicus andinus

Key Differences

• Humpback smooth hound is Critically Endangered while Little Black Serotine is Least Concern.

Taxonomic Classification

Rank	Humpback smooth hound	Little Black Serotine
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	Eptesicus
Species	Mustelus whitneyi	Eptesicus andinus

Evolutionary Relationship

Humpback smooth hound and Little Black Serotine share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Humpback smooth hound

CR — Critically Endangered

Little Black Serotine

LC — Least Concern

Physical Characteristics

Attribute	Humpback smooth hound	Little Black Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Humpback smooth hound

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

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

Little Black Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.