Brook Floater vs Fly Agaric

Alasmidonta varicosa compared with Amanita muscaria

Key Differences

Brook Floater is Vulnerable while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Fly Agaric
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Moluscos)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Agaricomycetes (Mushrooms)
Order	Unionida (Unionoida)	Agaricales (Gilled Mushrooms)
Family	Unionidae	Agaricaceae (Agarics)
Genus	Alasmidonta	Amanita (Amanitas)
Species	Alasmidonta varicosa	Amanita muscaria

Conservation Status

Brook Floater

VU — Vulnerable

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Brook Floater	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

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.

Fly Agaric

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, 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.

Fly Agaric

A amanita-das-moscas (Amanita muscaria) é um dos fungos mais icônicos e reconhecíveis da Terra, exibindo chapéus vermelhos marcantes com verrugas brancas nos bosques boreais do hemisfério norte. Apesar de sua aparência de conto de fadas, contém potentes compostos psicoativos como muscimol e ácido iboténico, sendo moderadamente tóxico. Forma simbioses micorrízicas essenciais com bétulas, pinheiros e abetos, trocando nutrientes minerais por carbono e desempenhando papéis fundamentais na ciclagem de nutrientes nas florestas boreais.