blue-ringed octopus vs brittlestar

Hapalochlaena maculosa compared with Amphiura filiformis

Taxonomic Classification

Rank	blue-ringed octopus	brittlestar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Echinodermata (Echinoderms)
Class	Cephalopoda (Cephalopods)	Ophiuroidea (Ophiuroidea)
Order	Octopoda (Octopuses)	Amphilepidida (Amphilepidida)
Family	Octopodidae (Common Octopuses)	Amphiuridae
Genus	Hapalochlaena	Amphiura
Species	Hapalochlaena maculosa	Amphiura filiformis

Evolutionary Relationship

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

Conservation Status

blue-ringed octopus

LC — Least Concern

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	blue-ringed octopus	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

blue-ringed octopus

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

blue-ringed octopus

The Blue-ringed octopus (Hapalochlaena maculosa) is a species in the genus Hapalochlaena. It is currently classified as Least Concern on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

brittlestar

The Brittlestar (Amphiura filiformis) 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.