Blacktail spurdog vs Taiwan spurdog

Squalus melanurus compared with Squalus formosus

Key Differences

• Blacktail spurdog is Data Deficient while Taiwan spurdog is Endangered.

Taxonomic Classification

Rank	Blacktail spurdog	Taiwan spurdog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
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

Blacktail spurdog and Taiwan spurdog share a common ancestor at the Genus level: Squalus.

Conservation Status

Blacktail spurdog

DD — Data Deficient

Taiwan spurdog

EN — Endangered

Physical Characteristics

Attribute	Blacktail spurdog	Taiwan spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

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.

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.