Black Nerite vs Bridge Roller

Theodoxus prevostianus compared with Ancylis uncella

Key Differences

• Black Nerite is Endangered while Bridge Roller is Least Concern.

Taxonomic Classification

Rank	Black Nerite	Bridge Roller
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Gastropoda (Gastropoda)	Insecta (Insects)
Order	Cycloneritida (Cycloneritida)	Lepidoptera (Butterflies & Moths)
Family	Neritidae	Tortricidae
Genus	Theodoxus	Ancylis
Species	Theodoxus prevostianus	Ancylis uncella

Evolutionary Relationship

Black Nerite and Bridge Roller share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black Nerite

EN — Endangered

Bridge Roller

LC — Least Concern

Physical Characteristics

Attribute	Black Nerite	Bridge Roller
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.

Bridge Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, 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.

Bridge Roller

The Bridge Roller (Ancylis uncella) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway