brittlestar vs Sydney octopus

Amphiura chiajei compared with Octopus tetricus

Taxonomic Classification

Rank	brittlestar	Sydney octopus
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Mollusca (Mollusks)
Class	Ophiuroidea (Ophiuroidea)	Cephalopoda (Cephalopods)
Order	Amphilepidida (Amphilepidida)	Octopoda (Octopuses)
Family	Amphiuridae	Octopodidae (Common Octopuses)
Genus	Amphiura	Octopus (Octopuses)
Species	Amphiura chiajei	Octopus tetricus

Evolutionary Relationship

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

Conservation Status

brittlestar

LC — Least Concern

Sydney octopus

LC — Least Concern

Physical Characteristics

Attribute	brittlestar	Sydney octopus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Sydney octopus

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.