Bartail spurdog vs Ajeru

Squalus notocaudatus compared with Aetobatus narinari

Key Differences

• Bartail spurdog is Least Concern while Ajeru is Near Threatened.

Taxonomic Classification

Rank	Bartail spurdog	Ajeru
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Elasmobranchii	Elasmobranchii
Order	Squaliformes (Squaliformes)	Myliobatiformes (Myliobatiformes)
Family	Squalidae	Myliobatidae
Genus	Squalus	Aetobatus
Species	Squalus notocaudatus	Aetobatus narinari

Evolutionary Relationship

Bartail spurdog and Ajeru share a common ancestor at the Class level: Elasmobranchii.

Conservation Status

Bartail spurdog

LC — Least Concern

Ajeru

NT — Near Threatened

Physical Characteristics

Attribute	Bartail spurdog	Ajeru
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bartail spurdog

Ajeru

Habitat

Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Colombia, Taiwan, and Venezuela. 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.

Ajeru

The Bishop ray (Aetobatus narinari) is a species in the genus Aetobatus. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia and South America, inhabiting ecosystems characteristic of the region.