Blacktail spurdog vs Broadgill Catshark

Squalus melanurus compared with Apristurus riveri

Key Differences

• Blacktail spurdog is Data Deficient while Broadgill Catshark is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Broadgill Catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Chondrichthyes (Cartilaginous Fish)
Order	Squaliformes (Squaliformes)	Carcharhiniformes (Ground Sharks)
Family	Squalidae	Scyliorhinidae
Genus	Squalus	Apristurus
Species	Squalus melanurus	Apristurus riveri

Evolutionary Relationship

Blacktail spurdog and Broadgill Catshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Broadgill Catshark

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Broadgill Catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Broadgill Catshark

Habitat

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

Range

Found in Venezuela.

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.

Broadgill Catshark

The Broadgill Catshark (Apristurus riveri) 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.