Black roughscale catshark vs Smith's Thorius

Apristurus melanoasper compared with Thorius smithi

Key Differences

• Black roughscale catshark is Least Concern while Smith's Thorius is Critically Endangered.

Taxonomic Classification

Rank	Black roughscale catshark	Smith's Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Amphibia (Amphibians)
Order	Carcharhiniformes (Ground Sharks)	Caudata (Caudata)
Family	Scyliorhinidae	Plethodontidae
Genus	Apristurus	Thorius
Species	Apristurus melanoasper	Thorius smithi

Evolutionary Relationship

Black roughscale catshark and Smith's Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black roughscale catshark

LC — Least Concern

Smith's Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Black roughscale catshark	Smith's Thorius
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.

Smith's Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. 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.