Brook Floater vs Durham slug

Alasmidonta varicosa compared with Arion flagellus

Key Differences

• Brook Floater is Vulnerable while Durham slug is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Durham slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class	Bivalvia (Bivalvia)	Gastropoda (Gastropoda)
Order	Unionida (Unionida)	Stylommatophora (Stylommatophora)
Family	Unionidae	Arionidae
Genus	Alasmidonta	Arion
Species	Alasmidonta varicosa	Arion flagellus

Evolutionary Relationship

Brook Floater and Durham slug share a common ancestor at the Phylum level: Mollusca. (Mollusks)

Conservation Status

Brook Floater

VU — Vulnerable

Durham slug

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Durham slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Durham slug

Habitat

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

Range

Found across Africa (South Africa) and Europe (6 countries).

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.