Brook Floater vs Knieff's hook moss

Alasmidonta varicosa compared with Drepanocladus aduncus

Key Differences

• Brook Floater is Vulnerable while Knieff's hook moss is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Knieff's hook moss
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Bryophyta
Class	Bivalvia (Bivalvia)	Bryopsida (Bryopsida)
Order	Unionida (Unionida)	Hypnales (Hypnales)
Family	Unionidae	Amblystegiaceae
Genus	Alasmidonta	Drepanocladus
Species	Alasmidonta varicosa	Drepanocladus aduncus

Conservation Status

Brook Floater

VU — Vulnerable

Knieff's hook moss

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Knieff's hook moss
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.

Knieff's hook moss

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Colombia).

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