brittlestar vs River Tern

Amphiura chiajei compared with Sterna aurantia

Key Differences

• brittlestar is Least Concern while River Tern is Vulnerable.

Taxonomic Classification

Rank	brittlestar	River Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Chordata (Chordates)
Class	Ophiuroidea (Ophiuroidea)	Aves (Birds)
Order	Amphilepidida (Amphilepidida)	Charadriiformes (Charadriiformes)
Family	Amphiuridae	Laridae
Genus	Amphiura	Sterna
Species	Amphiura chiajei	Sterna aurantia

Evolutionary Relationship

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

Conservation Status

brittlestar

LC — Least Concern

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	brittlestar	River Tern
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.

River Tern

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway. Currently classified as Vulnerable 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