Brook Floater vs Straw Flat-body

Alasmidonta varicosa compared with Agonopterix kaekeritziana

Key Differences

• Brook Floater is Vulnerable while Straw Flat-body is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Straw Flat-body
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Depressariidae
Genus	Alasmidonta	Agonopterix
Species	Alasmidonta varicosa	Agonopterix kaekeritziana

Evolutionary Relationship

Brook Floater and Straw Flat-body share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Straw Flat-body

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Straw Flat-body
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.

Straw Flat-body

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.