Black roughscale catshark vs Stream Bluet

Apristurus melanoasper compared with Enallagma exsulans

Taxonomic Classification

Rank	Black roughscale catshark	Stream Bluet
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Arthropoda (节肢动物门)
Class	Chondrichthyes (软骨鱼纲)	Insecta (昆蟲綱)
Order	Carcharhiniformes (真鲨目)	Odonata (蜻蜓目)
Family	Scyliorhinidae	Coenagrionidae
Genus	Apristurus	Enallagma
Species	Apristurus melanoasper	Enallagma exsulans

Evolutionary Relationship

Black roughscale catshark and Stream Bluet share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Black roughscale catshark

LC — Least Concern

Stream Bluet

LC — Least Concern

Physical Characteristics

Attribute	Black roughscale catshark	Stream Bluet
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.

Stream Bluet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

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.