Brook Floater vs

Alasmidonta varicosa compared with Orbilia comma

Key Differences

• Brook Floater is Vulnerable while is Near Threatened.

Taxonomic Classification

Rank	Brook Floater
Kingdom	Animalia (động vật)	Fungi (nấm)
Phylum	Mollusca (động vật thân mềm)	Ascomycota (Sac Fungi)
Class	Bivalvia (Thân mềm hai mảnh vỏ)	Orbiliomycetes (Orbiliomycetes)
Order	Unionida (Unionoida)	Orbiliales (Orbiliales)
Family	Unionidae	Orbiliaceae
Genus	Alasmidonta	Orbilia
Species	Alasmidonta varicosa	Orbilia comma

Conservation Status

Brook Floater

VU — Vulnerable

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Orbilia comma is a minute discomycete fungus producing tiny, translucent to pale yellowish cup-shaped fruiting bodies on decaying wood and plant debris in humid forest settings. It belongs to a genus of small, inconspicuous fungi that play a role in decomposing organic material on the forest floor. Near Threatened, its status reflects sensitivity to woodland management changes and habitat loss.