Brook Floater vs Lesser Crestwort

Alasmidonta varicosa compared with Lophocolea minor

Key Differences

• Brook Floater is Vulnerable while Lesser Crestwort is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Lesser Crestwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Marchantiophyta (liverwort)
Class	Bivalvia (Bivalvia)	Jungermanniopsida (Jungermanniopsida)
Order	Unionida (Unionida)	Jungermanniales (Jungermanniales)
Family	Unionidae	Lophocoleaceae
Genus	Alasmidonta	Lophocolea
Species	Alasmidonta varicosa	Lophocolea minor

Conservation Status

Brook Floater

VU — Vulnerable

Lesser Crestwort

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Lesser Crestwort
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 Crestwort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (United States).

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States