Bartail spurdog vs Harmless Serotine

Squalus notocaudatus compared with Eptesicus innoxius

Key Differences

• Bartail spurdog is Least Concern while Harmless Serotine is Near Threatened.

Taxonomic Classification

Rank	Bartail spurdog	Harmless Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Chiroptera (Bats)
Family	Squalidae	Vespertilionidae
Genus	Squalus	Eptesicus
Species	Squalus notocaudatus	Eptesicus innoxius

Evolutionary Relationship

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

Conservation Status

Bartail spurdog

LC — Least Concern

Harmless Serotine

NT — Near Threatened

Physical Characteristics

Attribute	Bartail spurdog	Harmless Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bartail spurdog

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.

Bartail spurdog

The Bartail spurdog (Squalus notocaudatus) is a species in the genus Squalus. It is currently classified as Least Concern on the IUCN Red List.