brittlestar vs

Amphiura filiformis compared with Usnea cornuta

Key Differences

• brittlestar is Least Concern while is Near Threatened.

Taxonomic Classification

Rank	brittlestar
Kingdom	Animalia (حيوانات)	Fungi (فطر)
Phylum	Echinodermata (شوكيات الجلد)	Ascomycota (فطريات زقية)
Class	Ophiuroidea (نجم البحر الهش)	Lecanoromycetes (لقنورانية)
Order	Amphilepidida (Amphilepidida)	Lecanorales (لقنوريات)
Family	Amphiuridae	Parmeliaceae
Genus	Amphiura	Usnea
Species	Amphiura filiformis	Usnea cornuta

Conservation Status

brittlestar

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	brittlestar
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden