brittlestar vs Fierce Orbweaver

Amphiura filiformis compared with Araneus saevus

Key Differences

• brittlestar is Least Concern while Fierce Orbweaver is Near Threatened.

Taxonomic Classification

Rank	brittlestar	Fierce Orbweaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Arthropoda (Arthropods)
Class	Ophiuroidea (Ophiuroidea)	Arachnida (Arachnids)
Order	Amphilepidida (Amphilepidida)	Araneae (Araneae)
Family	Amphiuridae	Araneidae
Genus	Amphiura	Araneus
Species	Amphiura filiformis	Araneus saevus

Evolutionary Relationship

brittlestar and Fierce Orbweaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brittlestar

LC — Least Concern

Fierce Orbweaver

NT — Near Threatened

Physical Characteristics

Attribute	brittlestar	Fierce Orbweaver
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.

Fierce Orbweaver

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Canada, Norway, Sweden, and United States. 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 2 countries:

🇳🇴 Norway 🇸🇪 Sweden