brittlestar vs Tree Worm

Amphiura chiajei compared with Bimastos rubidus

Key Differences

• brittlestar is Least Concern while Tree Worm is Not Evaluated.

Taxonomic Classification

Rank	brittlestar	Tree Worm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Annelida (Segmented Worms)
Class	Ophiuroidea (Ophiuroidea)	Clitellata (Clitellata)
Order	Amphilepidida (Amphilepidida)	Crassiclitellata (Crassiclitellata)
Family	Amphiuridae	Lumbricidae
Genus	Amphiura	Bimastos
Species	Amphiura chiajei	Bimastos rubidus

Evolutionary Relationship

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

Conservation Status

brittlestar

LC — Least Concern

Tree Worm

NE — Not Evaluated

Physical Characteristics

Attribute	brittlestar	Tree Worm
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.

Tree Worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden