Aiguillat à queue noire vs Taiwan spurdog

Squalus melanurus compared with Squalus formosus

Key Differences

• Aiguillat à queue noire is Data Deficient while Taiwan spurdog is Endangered.

Taxonomic Classification

Rank	Aiguillat à queue noire	Taiwan spurdog
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Elasmobranchii	Elasmobranchii
Order same	Squaliformes (Squaliformes)	Squaliformes (Squaliformes)
Family same	Squalidae	Squalidae
Genus same	Squalus	Squalus
Species	Squalus melanurus	Squalus formosus

Evolutionary Relationship

Aiguillat à queue noire and Taiwan spurdog share a common ancestor at the Genus level: Squalus.

Conservation Status

Aiguillat à queue noire

DD — Data Deficient

Taiwan spurdog

EN — Endangered

Physical Characteristics

Attribute	Aiguillat à queue noire	Taiwan spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aiguillat à queue noire

Taiwan spurdog

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.

Aiguillat à queue noire

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