Brook Floater vs Thatch Groundling

Alasmidonta varicosa compared with Bryotropha basaltinella

Key Differences

• Brook Floater is Vulnerable while Thatch Groundling is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Thatch Groundling
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Gelechiidae
Genus	Alasmidonta	Bryotropha
Species	Alasmidonta varicosa	Bryotropha basaltinella

Evolutionary Relationship

Brook Floater and Thatch Groundling share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Thatch Groundling

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Thatch Groundling
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.

Thatch Groundling

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.