brittlestar vs milk snail

Amphiura filiformis compared with Otala lactea

Key Differences

• brittlestar is Least Concern while milk snail is Not Evaluated.

Taxonomic Classification

Rank	brittlestar	milk snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Mollusca (Mollusks)
Class	Ophiuroidea (Ophiuroidea)	Gastropoda (Gastropoda)
Order	Amphilepidida (Amphilepidida)	Stylommatophora (Stylommatophora)
Family	Amphiuridae	Helicidae
Genus	Amphiura	Otala
Species	Amphiura filiformis	Otala lactea

Evolutionary Relationship

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

Conservation Status

brittlestar

LC — Least Concern

milk snail

NE — Not Evaluated

Physical Characteristics

Attribute	brittlestar	milk snail
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.

milk snail

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (Mexico, United States), and South America (Argentina, Chile, Paraguay).

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