Black Nerite vs brittlestar

Theodoxus prevostianus compared with Amphiura filiformis

Key Differences

• Black Nerite is Endangered while brittlestar is Least Concern.

Taxonomic Classification

Rank	Black Nerite	brittlestar
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Echinodermata (棘皮动物门)
Class	Gastropoda (腹足纲)	Ophiuroidea (蛇尾纲)
Order	Cycloneritida (Cycloneritida)	Amphilepidida (阳遂足目)
Family	Neritidae	Amphiuridae
Genus	Theodoxus	Amphiura
Species	Theodoxus prevostianus	Amphiura filiformis

Evolutionary Relationship

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

Conservation Status

Black Nerite

EN — Endangered

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	Black Nerite	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Nerite

Habitat

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

Range

Found in Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Black Nerite

The Black Nerite (Theodoxus prevostianus) is a species in the genus Theodoxus. It is currently classified as Endangered on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

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 1 countries:

🇳🇴 Norway