brittlestar vs cavernous crystalwort

Amphiura chiajei compared with Riccia cavernosa

Key Differences

• brittlestar is Least Concern while cavernous crystalwort is Endangered.

Taxonomic Classification

Rank	brittlestar	cavernous 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 chiajei	Riccia cavernosa

Conservation Status

brittlestar

LC — Least Concern

cavernous crystalwort

EN — Endangered

Physical Characteristics

Attribute	brittlestar	cavernous 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, Portugal, and Sweden.

cavernous crystalwort

Habitat

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

Range

Widely distributed across Europe (6 countries), North America (United States), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

cavernous crystalwort

The Cavernous crystalwort (Riccia cavernosa) is a species in the genus Riccia. It is currently classified as Endangered on the IUCN Red List. Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden