Black roughscale catshark vs squirrel’s tail hydroid

Apristurus melanoasper compared with Sertularia argentea

Key Differences

• Black roughscale catshark is Least Concern while squirrel’s tail hydroid is Not Evaluated.

Taxonomic Classification

Rank	Black roughscale catshark	squirrel’s tail hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Chondrichthyes (Cartilaginous Fish)	Hydrozoa (Hydrozoa)
Order	Carcharhiniformes (Ground Sharks)	Leptothecata (Leptothecata)
Family	Scyliorhinidae	Sertulariidae
Genus	Apristurus	Sertularia
Species	Apristurus melanoasper	Sertularia argentea

Evolutionary Relationship

Black roughscale catshark and squirrel’s tail hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black roughscale catshark

LC — Least Concern

squirrel’s tail hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Black roughscale catshark	squirrel’s tail hydroid
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.

squirrel’s tail hydroid

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.