Blacktail spurdog vs Brown eagle-ray

Squalus melanurus compared with Aetomylaeus milvus

Key Differences

• Blacktail spurdog is Data Deficient while Brown eagle-ray is Endangered.

Taxonomic Classification

Rank	Blacktail spurdog	Brown eagle-ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Elasmobranchii	Elasmobranchii
Order	Squaliformes (Squaliformes)	Myliobatiformes (Myliobatiformes)
Family	Squalidae	Myliobatidae
Genus	Squalus	Aetomylaeus
Species	Squalus melanurus	Aetomylaeus milvus

Evolutionary Relationship

Blacktail spurdog and Brown eagle-ray share a common ancestor at the Class level: Elasmobranchii.

Conservation Status

Blacktail spurdog

DD — Data Deficient

Brown eagle-ray

EN — Endangered

Physical Characteristics

Attribute	Blacktail spurdog	Brown eagle-ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Brown eagle-ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.

Brown eagle-ray

The Brown Eagle-ray (Aetomylaeus milvus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.