brittlestar vs sea thread hydroid

Amphiura chiajei compared with Obelia dichotoma

Key Differences

• brittlestar is Least Concern while sea thread hydroid is Not Evaluated.

Taxonomic Classification

Rank	brittlestar	sea thread hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Cnidaria (Cnidarians)
Class	Ophiuroidea (Ophiuroidea)	Hydrozoa (Hydrozoa)
Order	Amphilepidida (Amphilepidida)	Leptothecata (Leptothecata)
Family	Amphiuridae	Campanulariidae
Genus	Amphiura	Obelia
Species	Amphiura chiajei	Obelia dichotoma

Evolutionary Relationship

brittlestar and sea thread hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brittlestar

LC — Least Concern

sea thread hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	brittlestar	sea thread hydroid
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.

sea thread hydroid

Habitat

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

Range

Widely distributed across Africa (South Africa), Europe (5 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Argentina, Chile).

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.

Shared Countries

Both species can be found in 4 countries:

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