Humpback smooth hound vs Lesser Sac-winged Bat

Mustelus whitneyi compared with Saccopteryx leptura

Key Differences

• Humpback smooth hound is Critically Endangered while Lesser Sac-winged Bat is Least Concern.

Taxonomic Classification

Rank	Humpback smooth hound	Lesser Sac-winged Bat
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	Emballonuridae
Genus	Mustelus	Saccopteryx
Species	Mustelus whitneyi	Saccopteryx leptura

Evolutionary Relationship

Humpback smooth hound and Lesser Sac-winged Bat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Humpback smooth hound

CR — Critically Endangered

Lesser Sac-winged Bat

LC — Least Concern

Physical Characteristics

Attribute	Humpback smooth hound	Lesser Sac-winged Bat
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.

Lesser Sac-winged Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.