Brook Floater vs Marbled Brittlegill

Alasmidonta varicosa compared with Russula ionochlora

Key Differences

• Brook Floater is Vulnerable while Marbled Brittlegill is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Marbled Brittlegill
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Agaricomycetes (Mushrooms)
Order	Unionida (Unionida)	Russulales (Russulales)
Family	Unionidae	Russulaceae
Genus	Alasmidonta	Russula
Species	Alasmidonta varicosa	Russula ionochlora

Conservation Status

Brook Floater

VU — Vulnerable

Marbled Brittlegill

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Marbled Brittlegill
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.

Marbled Brittlegill

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.