Blacktail spurdog vs brittlestar

Squalus melanurus compared with Amphiura chiajei

Key Differences

• Blacktail spurdog is Data Deficient while brittlestar is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	brittlestar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Echinodermata (Echinoderms)
Class	Elasmobranchii	Ophiuroidea (Ophiuroidea)
Order	Squaliformes (Squaliformes)	Amphilepidida (Amphilepidida)
Family	Squalidae	Amphiuridae
Genus	Squalus	Amphiura
Species	Squalus melanurus	Amphiura chiajei

Evolutionary Relationship

Blacktail spurdog and brittlestar share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blacktail spurdog

DD — Data Deficient

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

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.

brittlestar

The Brittlestar (Amphiura chiajei) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.