arrow worm vs Black roughscale catshark

Parasagitta elegans compared with Apristurus melanoasper

Key Differences

• arrow worm is Not Evaluated while Black roughscale catshark is Least Concern.

Taxonomic Classification

Rank	arrow worm	Black roughscale catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chaetognatha (arrow worms)	Chordata (Chordates)
Class	Sagittoidea (Sagittoidea)	Chondrichthyes (Cartilaginous Fish)
Order	Aphragmophora (Aphragmophora)	Carcharhiniformes (Ground Sharks)
Family	Sagittidae	Scyliorhinidae
Genus	Parasagitta	Apristurus
Species	Parasagitta elegans	Apristurus melanoasper

Evolutionary Relationship

arrow worm and Black roughscale catshark share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow worm

NE — Not Evaluated

Black roughscale catshark

LC — Least Concern

Physical Characteristics

Attribute	arrow worm	Black roughscale catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark and Norway.

Black roughscale catshark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

arrow worm

The Arrow worm, Parasagitta elegans, is a species. Native to Europe, inhabiting ecosystems characteristic of the region.

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.