Black Nerite vs Brook Floater

Theodoxus prevostianus compared with Alasmidonta varicosa

Key Differences

• Black Nerite is Endangered while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Black Nerite	Brook Floater
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Mollusca (Moluska)	Mollusca (Moluska)
Class	Gastropoda (siput)	Bivalvia (Bivalvia)
Order	Cycloneritida (Cycloneritida)	Unionida (Unionida)
Family	Neritidae	Unionidae
Genus	Theodoxus	Alasmidonta
Species	Theodoxus prevostianus	Alasmidonta varicosa

Evolutionary Relationship

Black Nerite and Brook Floater share a common ancestor at the Phylum level: Mollusca. (Moluska)

Conservation Status

Black Nerite

EN — Endangered

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Black Nerite	Brook Floater
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.

Brook Floater

Habitat

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

Range

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

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.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.