Black roughscale catshark vs Crested Auklet

Apristurus melanoasper compared with Aethia cristatella

Taxonomic Classification

Rank	Black roughscale catshark	Crested Auklet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Charadriiformes (Charadriiformes)
Family	Scyliorhinidae	Alcidae
Genus	Apristurus	Aethia
Species	Apristurus melanoasper	Aethia cristatella

Evolutionary Relationship

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

Conservation Status

Black roughscale catshark

LC — Least Concern

Crested Auklet

LC — Least Concern

Physical Characteristics

Attribute	Black roughscale catshark	Crested Auklet
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.

Crested Auklet

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Norway and United Kingdom.

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.