brittlestar vs Shelled Slug

Amphiura chiajei compared with Testacella haliotidea

Key Differences

• brittlestar is Least Concern while Shelled Slug is Data Deficient.

Taxonomic Classification

Rank	brittlestar	Shelled Slug
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Echinodermata (棘皮动物门)	Mollusca (软体动物门)
Class	Ophiuroidea (蛇尾纲)	Gastropoda (腹足纲)
Order	Amphilepidida (阳遂足目)	Stylommatophora (柄眼目)
Family	Amphiuridae	Testacellidae
Genus	Amphiura	Testacella
Species	Amphiura chiajei	Testacella haliotidea

Evolutionary Relationship

brittlestar and Shelled Slug share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

brittlestar

LC — Least Concern

Shelled Slug

DD — Data Deficient

Physical Characteristics

Attribute	brittlestar	Shelled Slug
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.

Shelled Slug

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Widely distributed across Europe (9 countries), North America (United States), and Oceania and the Pacific (New Zealand).

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 2 countries:

🇵🇹 Portugal 🇸🇪 Sweden