Black roughscale catshark vs roker

Apristurus melanoasper compared with Raja clavata

Key Differences

• Black roughscale catshark is Least Concern while roker is Near Threatened.

Taxonomic Classification

Rank	Black roughscale catshark	roker
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Elasmobranchii
Order	Carcharhiniformes (Ground Sharks)	Rajiformes (Rajiformes)
Family	Scyliorhinidae	Rajidae
Genus	Apristurus	Raja
Species	Apristurus melanoasper	Raja clavata

Evolutionary Relationship

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

Conservation Status

Black roughscale catshark

LC — Least Concern

roker

NT — Near Threatened

Physical Characteristics

Attribute	Black roughscale catshark	roker
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.

roker

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.