Black roughscale catshark vs

Apristurus melanoasper compared with Usnea cornuta

Key Differences

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

Taxonomic Classification

Rank	Black roughscale catshark
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Ascomycota (Sac Fungi)
Class	Chondrichthyes (ปลากระดูกอ่อน)	Lecanoromycetes (Lecanoromycetes)
Order	Carcharhiniformes (อันดับปลาฉลามครีบดำ)	Lecanorales (Lecanorales)
Family	Scyliorhinidae	Parmeliaceae
Genus	Apristurus	Usnea
Species	Apristurus melanoasper	Usnea cornuta

Conservation Status

Black roughscale catshark

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	Black roughscale catshark
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.