Black roughscale catshark vs Blacktail spurdog

Apristurus melanoasper compared with Squalus melanurus

Key Differences

• Black roughscale catshark is Least Concern while Blacktail spurdog is Data Deficient.

Taxonomic Classification

Rank	Black roughscale catshark	Blacktail spurdog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Elasmobranchii
Order	Carcharhiniformes (Ground Sharks)	Squaliformes (Squaliformes)
Family	Scyliorhinidae	Squalidae
Genus	Apristurus	Squalus
Species	Apristurus melanoasper	Squalus melanurus

Evolutionary Relationship

Black roughscale catshark and Blacktail spurdog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black roughscale catshark

LC — Least Concern

Blacktail spurdog

DD — Data Deficient

Physical Characteristics

Attribute	Black roughscale catshark	Blacktail spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black roughscale catshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Blacktail spurdog

Black roughscale catshark

The Black roughscale catshark (Apristurus melanoasper) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.