Black roughscale catshark vs Green Silver-Spangled Shark

Apristurus melanoasper compared with Cucullia argentea

Key Differences

• Black roughscale catshark is Least Concern while Green Silver-Spangled Shark is Critically Endangered.

Taxonomic Classification

Rank	Black roughscale catshark	Green Silver-Spangled Shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Carcharhiniformes (Ground Sharks)	Lepidoptera (Butterflies & Moths)
Family	Scyliorhinidae	Noctuidae
Genus	Apristurus	Cucullia
Species	Apristurus melanoasper	Cucullia argentea

Evolutionary Relationship

Black roughscale catshark and Green Silver-Spangled Shark share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black roughscale catshark

LC — Least Concern

Green Silver-Spangled Shark

CR — Critically Endangered

Physical Characteristics

Attribute	Black roughscale catshark	Green Silver-Spangled Shark
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.

Green Silver-Spangled Shark

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Denmark, Norway, Sweden, and Ukraine. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.