brittlestar vs floating crystalwort

Amphiura filiformis compared with Riccia fluitans

Key Differences

• brittlestar is Least Concern while floating crystalwort is Near Threatened.

Taxonomic Classification

Rank	brittlestar	floating crystalwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Echinodermata (Echinoderms)	Marchantiophyta (liverwort)
Class	Ophiuroidea (Ophiuroidea)	Marchantiopsida (Marchantiopsida)
Order	Amphilepidida (Amphilepidida)	Marchantiales (Marchantiales)
Family	Amphiuridae	Ricciaceae
Genus	Amphiura	Riccia
Species	Amphiura filiformis	Riccia fluitans

Conservation Status

brittlestar

LC — Least Concern

floating crystalwort

NT — Near Threatened

Physical Characteristics

Attribute	brittlestar	floating crystalwort
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.

floating crystalwort

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), North America (United States), and South America (Chile). 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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden