Brook Floater vs Large Long-horn

Alasmidonta varicosa compared with Nematopogon swammerdamella

Key Differences

• Brook Floater is Vulnerable while Large Long-horn is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Large Long-horn
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Adelidae
Genus	Alasmidonta	Nematopogon
Species	Alasmidonta varicosa	Nematopogon swammerdamella

Evolutionary Relationship

Brook Floater and Large Long-horn share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Large Long-horn

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Large Long-horn
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.

Large Long-horn

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.