brittlestar vs Red Abalone

Amphiura chiajei compared with Haliotis rufescens

Key Differences

• brittlestar is Least Concern while Red Abalone is Critically Endangered.

Taxonomic Classification

Rank	brittlestar	Red Abalone
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Mollusca (Mollusks)
Class	Ophiuroidea (Ophiuroidea)	Gastropoda (Gastropoda)
Order	Amphilepidida (Amphilepidida)	Lepetellida (Lepetellida)
Family	Amphiuridae	Haliotidae
Genus	Amphiura	Haliotis
Species	Amphiura chiajei	Haliotis rufescens

Evolutionary Relationship

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

Conservation Status

brittlestar

LC — Least Concern

Red Abalone

CR — Critically Endangered

Physical Characteristics

Attribute	brittlestar	Red Abalone
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.

Red Abalone

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and tropical and subtropical dry broadleaf forests, among 9 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Chile, China, Norway, Peru, and Taiwan. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway