arrow-head scale vs Black roughscale catshark

Unaspis yanonensis compared with Apristurus melanoasper

Key Differences

• arrow-head scale is Not Evaluated while Black roughscale catshark is Least Concern.

Taxonomic Classification

Rank	arrow-head scale	Black roughscale catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Chondrichthyes (Cartilaginous Fish)
Order	Hemiptera (Hemiptera)	Carcharhiniformes (Ground Sharks)
Family	Diaspididae	Scyliorhinidae
Genus	Unaspis	Apristurus
Species	Unaspis yanonensis	Apristurus melanoasper

Evolutionary Relationship

arrow-head scale and Black roughscale catshark share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow-head scale

NE — Not Evaluated

Black roughscale catshark

LC — Least Concern

Physical Characteristics

Attribute	arrow-head scale	Black roughscale catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow-head scale

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Asia (Japan, Taiwan) and Europe (6 countries).

Black roughscale catshark

Habitat

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

arrow-head scale

The Arrow-head scale, Unaspis yanonensis, is a species. Typically found in virtually all terrestrial and freshwater habitats.

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.