brittlestar vs Medusa Brittlestem

Amphiura filiformis compared with Psathyrella caput-medusae

Key Differences

• brittlestar is Least Concern while Medusa Brittlestem is Endangered.

Taxonomic Classification

Rank	brittlestar	Medusa Brittlestem
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Echinodermata (Echinoderms)	Basidiomycota (Club Fungi)
Class	Ophiuroidea (Ophiuroidea)	Agaricomycetes (Mushrooms)
Order	Amphilepidida (Amphilepidida)	Agaricales (Gilled Mushrooms)
Family	Amphiuridae	Psathyrellaceae
Genus	Amphiura	Psathyrella
Species	Amphiura filiformis	Psathyrella caput-medusae

Conservation Status

brittlestar

LC — Least Concern

Medusa Brittlestem

EN — Endangered

Physical Characteristics

Attribute	brittlestar	Medusa Brittlestem
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, and Sweden.

Medusa Brittlestem

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden