brittlestar vs Raetzer's Ringlet

Amphiura filiformis compared with Erebia christi

Key Differences

• brittlestar is Least Concern while Raetzer's Ringlet is Vulnerable.

Taxonomic Classification

Rank	brittlestar	Raetzer's Ringlet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Arthropoda (Arthropods)
Class	Ophiuroidea (Ophiuroidea)	Insecta (Insects)
Order	Amphilepidida (Amphilepidida)	Lepidoptera (Butterflies & Moths)
Family	Amphiuridae	Nymphalidae (Brush-footed Butterflies)
Genus	Amphiura	Erebia
Species	Amphiura filiformis	Erebia christi

Evolutionary Relationship

brittlestar and Raetzer's Ringlet share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brittlestar

LC — Least Concern

Raetzer's Ringlet

VU — Vulnerable

Physical Characteristics

Attribute	brittlestar	Raetzer's Ringlet
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.

Raetzer's Ringlet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Italy and Switzerland. Currently classified as Vulnerable 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.