Brook Floater vs Variable-Leaved Crestwort

Alasmidonta varicosa compared with Lophocolea heterophylla

Key Differences

Brook Floater is Vulnerable while Variable-Leaved Crestwort is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Variable-Leaved 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 heterophylla

Conservation Status

Brook Floater

VU — Vulnerable

Variable-Leaved Crestwort

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Variable-Leaved 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.

Variable-Leaved 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), North America (United States), and South America (Brazil).

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.