Black roughscale catshark vs Pohnpei tree snail

Apristurus melanoasper compared with Partula emersoni

Key Differences

• Black roughscale catshark is Least Concern while Pohnpei tree snail is Critically Endangered.

Taxonomic Classification

Rank	Black roughscale catshark	Pohnpei tree snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Chondrichthyes (Cartilaginous Fish)	Gastropoda (Gastropoda)
Order	Carcharhiniformes (Ground Sharks)	Stylommatophora (Stylommatophora)
Family	Scyliorhinidae	Partulidae
Genus	Apristurus	Partula
Species	Apristurus melanoasper	Partula emersoni

Evolutionary Relationship

Black roughscale catshark and Pohnpei tree snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black roughscale catshark

LC — Least Concern

Pohnpei tree snail

CR — Critically Endangered

Physical Characteristics

Attribute	Black roughscale catshark	Pohnpei tree snail
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.

Pohnpei tree snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found in Norway. 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.