Harmless Serotine vs Lesser Siren

Eptesicus innoxius compared with Siren intermedia

Key Differences

• Harmless Serotine is Near Threatened while Lesser Siren is Least Concern.

Taxonomic Classification

Rank	Harmless Serotine	Lesser Siren
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Chiroptera (Bats)	Caudata (Caudata)
Family	Vespertilionidae	Sirenidae
Genus	Eptesicus	Siren
Species	Eptesicus innoxius	Siren intermedia

Evolutionary Relationship

Harmless Serotine and Lesser Siren share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Harmless Serotine

NT — Near Threatened

Lesser Siren

LC — Least Concern

Physical Characteristics

Attribute	Harmless Serotine	Lesser Siren
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Lesser Siren

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Distributed across Belgium and Mexico.