Black roughscale catshark vs Common Shelduck

Apristurus melanoasper compared with Tadorna tadorna

Taxonomic Classification

Rank	Black roughscale catshark	Common Shelduck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Anseriformes (Anseriformes)
Family	Scyliorhinidae	Anatidae
Genus	Apristurus	Tadorna
Species	Apristurus melanoasper	Tadorna tadorna

Evolutionary Relationship

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

Conservation Status

Black roughscale catshark

LC — Least Concern

Common Shelduck

LC — Least Concern

Physical Characteristics

Attribute	Black roughscale catshark	Common Shelduck
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.

Common Shelduck

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Taiwan.

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.

Common Shelduck

Common Shelduck (Tadorna tadorna) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.