Brook Floater vs Death Cap

Alasmidonta varicosa compared with Amanita phalloides

Key Differences

Brook Floater is Vulnerable while Death Cap is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Death Cap
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Agaricomycetes (Mushrooms)
Order	Unionida (Unionida)	Agaricales (Gilled Mushrooms)
Family	Unionidae	Agaricaceae (Agarics)
Genus	Alasmidonta	Amanita (Amanitas)
Species	Alasmidonta varicosa	Amanita phalloides

Conservation Status

Brook Floater

VU — Vulnerable

Death Cap

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Death Cap
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.

Death Cap

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Chile).

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.