Brook Floater vs tree slug

Alasmidonta varicosa compared with Lehmannia marginata

Key Differences

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

Taxonomic Classification

Rank	Brook Floater	tree 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	Limacidae
Genus	Alasmidonta	Lehmannia
Species	Alasmidonta varicosa	Lehmannia marginata

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

tree slug

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	tree 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.

tree slug

Habitat

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

Range

Widely distributed across Europe (6 countries), North America (Dominican Republic), and South America (Chile).

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.