brittlestar vs Spearhead Bluet

Amphiura filiformis compared with Coenagrion hastulatum

Key Differences

• brittlestar is Least Concern while Spearhead Bluet is Critically Endangered.

Taxonomic Classification

Rank	brittlestar	Spearhead Bluet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Arthropoda (Arthropods)
Class	Ophiuroidea (Ophiuroidea)	Insecta (Insects)
Order	Amphilepidida (Amphilepidida)	Odonata (Odonata)
Family	Amphiuridae	Coenagrionidae
Genus	Amphiura	Coenagrion
Species	Amphiura filiformis	Coenagrion hastulatum

Evolutionary Relationship

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

Conservation Status

brittlestar

LC — Least Concern

Spearhead Bluet

CR — Critically Endangered

Physical Characteristics

Attribute	brittlestar	Spearhead Bluet
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.

Spearhead Bluet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Critically Endangered 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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden