Blacktail spurdog vs Kermadec spiny dogfish

Squalus melanurus compared with Squalus raoulensis

Key Differences

• Blacktail spurdog is Data Deficient while Kermadec spiny dogfish is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Kermadec spiny dogfish
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class same	Elasmobranchii	Elasmobranchii
Order same	Squaliformes (돔발상어목)	Squaliformes (돔발상어목)
Family same	Squalidae	Squalidae
Genus same	Squalus	Squalus
Species	Squalus melanurus	Squalus raoulensis

Evolutionary Relationship

Blacktail spurdog and Kermadec spiny dogfish share a common ancestor at the Genus level: Squalus.

Conservation Status

Blacktail spurdog

DD — Data Deficient

Kermadec spiny dogfish

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Kermadec spiny dogfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

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.