brittlestar vs Halsband-Schwindling

Amphiura filiformis compared with Marasmius rotula

Taxonomic Classification

Rank	brittlestar	Halsband-Schwindling
Kingdom	Animalia (Tier)	Fungi (Pilze)
Phylum	Echinodermata (Stachelhäuter)	Basidiomycota (Ständerpilze)
Class	Ophiuroidea (Schlangensterne)	Agaricomycetes (Mushrooms)
Order	Amphilepidida (Amphilepidida)	Agaricales (Champignonartige)
Family	Amphiuridae	Marasmiaceae
Genus	Amphiura	Marasmius
Species	Amphiura filiformis	Marasmius rotula

Conservation Status

brittlestar

LC — Least Concern

Halsband-Schwindling

LC — Least Concern

Physical Characteristics

Attribute	brittlestar	Halsband-Schwindling
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.

Halsband-Schwindling

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil).

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.

Halsband-Schwindling

The Collared Parachute, known scientifically as <em>Marasmius rotula</em>, is a small saprotrophic fungus belonging to the family Marasmiaceae within the order Agaricales. <em>Marasmius rotula</em> is characterised by its distinctive wheel-like or parachute-shaped cap, which typically features radial gill-like ridges connected to a collar around the stipe rather than attaching directly to it — a feature that gives the species both its common and scientific names. This species typically grows on decomposing leaf litter, dead woody material, and forest floors in deciduous and mixed woodland. It is reported to occur in Belgium, Brazil, Denmark, Norway, and Sweden. As a decomposer, <em>Marasmius rotula</em> plays a role in nutrient cycling within forest ecosystems. Detailed biological traits including typical lifespan measures and physical dimensions are poorly documented for this species in available literature. The Collared Parachute is currently assessed as Least Concern on the IUCN Red List.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden