Brook Floater vs Lesser Smoothcap

Alasmidonta varicosa compared with Atrichum angustatum

Taxonomic Classification

Rank	Brook Floater	Lesser Smoothcap
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Bryophyta
Class	Bivalvia (Bivalvia)	Polytrichopsida (Polytrichopsida)
Order	Unionida (Unionida)	Polytrichales (Polytrichales)
Family	Unionidae	Polytrichaceae
Genus	Alasmidonta	Atrichum
Species	Alasmidonta varicosa	Atrichum angustatum

Conservation Status

Brook Floater

VU — Vulnerable

Lesser Smoothcap

VU — Vulnerable

Physical Characteristics

Attribute	Brook Floater	Lesser Smoothcap
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.

Lesser Smoothcap

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.